|Category||Semiconductors => Microcontrollers (MCU) => MSP430 ultra-low-power MCUs => MSP430F1x|
|Part family||MSP430F135 16-Bit Ultra-Low-Power Microcontroller, 16kB Flash, 512B RAM, 12 bit ADC, USART|
|Title||Ultra-Low Power Microcontrollers|
|Description||16-Bit Ultra-Low-Power Microcontroller, 16kB Flash, 512B RAM, 12 bit ADC, USART 64-TQFP -40 to 85|
|Company||Texas Instruments, Inc.|
|Datasheet||Download MSP430F135IPAG datasheet
|Timers - 32-bit||0|
|Active Power (uA/MHz)||280|
|Operating Temperature Range(C)||-40 to 85|
|Timers - 16-bit||2|
|Approx. Price (US$)||3.35 | 1ku|
|ADC||ADC12 - 8ch|
|Non-volatile Memory (KB)||16|
|Wakeup Time (us)||6|
|Standby Power (LPM3-uA)||1.6|
|Pin nb||Package type||Ind std||JEDEC code||Package qty||Carrier||Device mark||Width (mm)||Length (mm)||Thick (mm)||Pitch (mm)|
|64||PAG||TQFP||S-PQFP-G||160||JEDEC TRAY (10+1)||M430F135||10||10||1||.5|
|• MSP430 SMBus
This application report describes a software implementation of the system management bus (SMBus) for the MSP430 microcontroller. It includes all master protocols, an interrupt-driven slave, and master usage examples. SMBus is derived from the I2C and is co | Doc
|• MSP430 Isolated FET Interface
This application report describes how to build an isolated FET interface for the MSP430 Flash Emulation Tool (FET). When developing and debugging line-powered MSP430applications such as motor control, electricity energy meters, power monitoring systems etc | Doc
|• HDQ Protocol Implementation with MSP430 | Doc|
|• FSK Modulation and Demodulation With the Microcontroller MSP430
This application report describes a software program for performing V.23 FSK modem transceiver functions using an MSP430 microcontroller. It makes use of novel filter architecture to perform DSP functions on a processor with only shift and add capabilities | Doc
|• A Low-Cost 12-bit Speech CODEC Using the MSP430F13x
This application report illustrates a design of a single chip speech codec (ADC and DAC) using the MSP430F133 MCU from Texas Instruments. The ADC part of this codec uses the on chip 12-bit ADC. The DAC part uses a novel PWM technique which enables the DAC | Doc
|• MSP430 32-kHz Crystal Oscillators (Rev. D)
Selection of the right crystal, correct load circuit, and proper board layout are important for a stable crystal oscillator. This application report summarizes crystal oscillator function and explains the parameters to select the correct crystal for ultra- | Doc
|• Powering the MSP430 from a High Voltage Input using the TPS62122 (Rev. C) | Doc|
|• Generation and Recognition of DTMF Signals With the Microcontroller MSP430
The first part of the Application Report describes the generation of DTMF signals using the Microcontroller MSP430. Following an explanation of the most important specifications which are involved, the theoretical and mathematical processes will be discuss | Doc
|• General Oversampling of MSP ADCs for Higher Resolution (Rev. A)
Multiple MSP ultra-low-power microcontrollers offer analog-to-digital converters (ADCs) to convert physical quantities into digital numbers, a function that is widely used across numerous applications. There are times, however, when a customer design deman | Doc
|• Advanced Debugging Using the Enhanced Emulation Module (EEM) With CCS v6 (Rev. F) | Doc|
|• Simple 1.5 V Boost Converter for MSP430
A simple, efficient, low-cost, boost converter to take 1.5 V from a single type-AA alkaline battery to the operating voltage required by the MSP430 family of ultralow-power microcontrollers is described. Expected battery life is up to 1000 hours. | Doc
|• Efficient MSP430 Code Synthesis for an FIR Filter
Digital filtering can be easily accomplished on the MSP430 using efficient multiplication. The tool accompanying this document automatically converts FIR filter coefficients to MSP430 assembly code that can be used in any application. Hornerâ€™s method and | Doc
|• Wave Digital Filtering Using the MSP430
Digital filtering is an integral part of many digital signal processing algorithms. Digital filters are characterized as either recursive [infinite impulse response (IIR)] or non-recursive [finite impulse response (FIR)] filters. IIR filters require a smal | Doc
|• MSP Code Protection Features
MSP microcontrollers (MCUs) offer a number of features to help control code accessibility in the device, to add different layers of code access management and protection strategies. These include features that can lock or password protect the JTAG/SBW acce | Doc
|• Economic Voltage Measurement With the MSP430 Family
This application report describes voltage and current measurement methods using the MSP430 universal timer/port module. The report explains the two measurement methods (charge and discharge) and shows how to measure voltage and current. The equations for t | Doc
|• 1.8V â€“ 5.5V Input, High-Efficiency DCDC Converter Reference Design for MSP430 (Rev. B)
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 1.8 V to 5.5 V, and who must increase the application run time by making use of the complete batt | Doc
|• Design Considerations When Using the MSP430 Graphics Library
LCDs are a growing commodity in todays market with products as diverse as children's toys to medical devices. Modern LCDs, along with the graphics displayed on them, are growing in complexity. A graphics library can simplify and accelerate development whil | Doc
|• Digital Fan Control With Tachometer Using MSP430
Digital Fan Control with Tachometer using MSP430 Application Report | Doc
|• Spread-Spectrum Clock Source Using an MSP430
While spread-spectrum clocking has long since been used in processor and memory clock trees, there are many other clocked systems, such as power supplies or switch-mode amplifiers, that continue to use a single-frequency clock. This can, in turn, generate | Doc
|• Using the TPS3619 with MSP430 Microcontrollers Can Reduce Sys Power Consumption (Rev. A)
The MSP430 series of microcontrollers are ideal in applications where battery life is critical. These microcontollers require only 0.1?A of current in low-power RAM retention mode; In this mode the microcontroller must have power to retain volatile memor | Doc
|• Tiny DCDC Converter Reference Design (Rev. A)
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system with an input voltage in the range of 3.6 V to 6 V with the primary design objective to minimize solution size as well as to maintain h | Doc
|• AES128 â€“ A C Implementation for Encryption and Decryption (Rev. A)
This application report describes the AES algorithm and the use of a suggested C implementation for AES encryption and decryption with MSP430.Note: This document may be subject to the export control policies of the local government. | Doc
|• Interfacing TMS320C5000 DSP to MSP430 Mixed Signal Microcontroller (Rev. A)
The TMS320C5000â„¢ family of digital signal processors (DSPs) features Host Port Interface Controllers (HPI) and Direct Memory Access Controllers (DMAC) for efficient data movement without any CPU involvement. The HPI enables the DSP to interface to host p | Doc
|• MSP430 LFXT1 Oscillator Accuracy
This report details the factors that influence achievable accuracy of the low frequency oscillator, specifically for real-time clock (RTC) applications. The intent of this application report is to provide an understanding of MSP430-specific factors influen | Doc
|• Interfacing the 3-V MSP430 to 5-V Circuits
The interfacing of the 3-V MSP430x1xx and MSP430x4xx microcontroller families to circuits with a supply of 5 V or higher is shown. Input, output and I/O interfaces are given and explained. Worse-case design equations are provided, where necessary. Some sim | Doc
|• Programming a Flash-Based MSP430 Using the JTAG Interface (Rev. H)
This application report has been superseded by the document shown below. Information previously contained in this application report can be found by clicking on the following links.- MSP430 Programming Via the JTAG Interface User's Guide Download MSP430 P | Doc
|• Mixing C and Assembler with the MSP430
This application note describes how C and assembler code can be used together within an MSP430 application. The combination of C and assembler benefits the designer by providing the power of a high-level language as well as the speed, efficiency, and low-l | Doc
|• Efficient Multiplication and Division Using MSP430 | Doc|
|• ESD Diode Current Specification
This document explains the maximum ESD diode current specified for GPIO on MSP microcontrollers. Sometimes signals on specific pins exceed the supply of the MSP MCU. In such a case, the device can handle this overvoltage condition through the ESD diodes, b | Doc
|• Implementing An Ultralow-Power Keypad Interface with MSP430
Often in applications with keypads, the condition can occur where a key can be held or stuck down, causing excess current consmption and reducing the battery life of a battery-operated product. This application report shows a solution. The keypad interfa | Doc
|• MSP430 Embedded Application Binary Interface
This document is a specification for the ELF-based Embedded Application Binary Interface (EABI) for the MSP430 family of processors from Texas Instruments. The EABI defines the low-level interface between programs, program components, and the execution env | Doc
|• Choosing an Ultra Low-Power MCU
This application report describes how to compare ultralow-power MCUs. It discusses the key differences between popular low-power MCUs and how to interpret features and specifications and apply them to application requirements. | Doc
|• Interfacing the MSP430 and TLC549/1549 A/D Converters
This application report describes how to interface an MSP430 mixed-signal microcontroller with the TLC549 and TLV1549 3-volt A/D converters. This report is written for the MSP430x11x(1) family, but can be adapted to any MSP430 derivative. | Doc
|• Boost DC/DC with Ultra-Low Shutdown Current (Rev. A)
This reference design is presented to help application designers and others who are trying to use the MSP430 in a system that requires a very low input voltage range while also maintaining high efficiency. Battery life is extended as well as a result of th | Doc
|• Current Transformer Phase Shift Compensation and Calibration
This application report demonstrates a digital technique to compensate and calibrate the phase shift of a current (or voltage) transformer used in electric power of energy measurement. Traditional analog compensation is replaced by a digital finite impulse | Doc
|• MSP430 Family Mixed-Signal Microcontroller Application Reports
MSP430 Metering Application Report | Doc
|• Li-Ion Battery Charger solution using the MSP430 | Doc|
|• MSP430 Software Coding Techniques (Rev. A)
This application report covers software techniques and topics of interest to all MSP430 programmers. The first part of the document discusses the MSP430 standard interrupt-based code flow model, recommended for the vast majority of applications. The next p | Doc
|• MSP430 Capacitive Single-Touch Sensor Design Guide
This application report discusses the design of RC-type capacitive single-touch sensors using the MSP430 microcontroller. The MSP430 has some unique features that make it suitable for interfacing with capacitive-touch sensors. The RC-type method does not n | Doc
|• MSP430 Flash Memory Characteristics (Rev. A)
Flash memory is a widely used, reliable, and flexible nonvolatile memory to store software code and data in a microcontroller. Failing to handle the flash according to data-sheet specifications may result in unreliable operation of the application. This ap | Doc
|• Understanding MSP430 Flash Data Retention
The MSP430 family of microcontrollers, as part of its broad portfolio, offers both read-only memory (ROM)-based and flash-based devices. Understanding the MSP430 flash is extremely important for efficient, robust, and reliable system design. Data retention | Doc
|• CRC Implementation with MSP430
Cyclic Redundancy Code (CRC) is commonly used to determine the correctness of a data transmission or storage. This application note presents a solution to compute 16-bit and 32-bit CRCs on the ultra low-power TI MSP430 microcontroller for the bitwise algor | Doc
|• Random Number Generation Using the MSP430
Many applications require the generation of random numbers. These random numbers are useful for applications such as communication protocols, cryptography, and device individualization.Generating random numbers often requires the use of expensive dedicated | Doc
|MSP-FET430U64: 64-pin Target Development Board and MSP-FET Programmer Bundle - MSP430F1x, MSP430F2x, MSP430F4x MCUs|
|MSP-TS430PM64: MSP-TS430PM64 - 64-pin Target Development Board for MSP430F1x, MSP430F2x and MSP430F4x MCUs|
Low Supply-Voltage Range, 3.6 V Ultralow-Power Consumption: Active Mode: at 1 MHz, 2.2V Standby Mode: µA Off Mode (RAM Retention): 0.1 µA Five Power-Saving Modes Wake-Up From Standby Mode in less than µs 16-Bit RISC Architecture, 125-ns Instruction Cycle Time 12-Bit A/D Converter With Internal Reference, Sample-and-Hold and Autoscan Feature 16-Bit Timer_B With Seven Capture/Compare-With-Shadow Registers 16-Bit Timer_A With Three Capture/Compare Registers On-Chip Comparator Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse
Serial Communication Interface (USART), Functions as Asynchronous UART or Synchronous SPI Interface Two USARTs USART1) MSP430x14x(1) Devices One USART (USART0) MSP430x13x Devices Family Members Include: MSP430F133: 8KB+256B Flash Memory, 256B RAM MSP430F135: 16KB+256B Flash Memory, 512B RAM MSP430F1471: 32KB+256B Flash Memory, 1KB RAM MSP430F1481: 48KB+256B Flash Memory, 2KB RAM MSP430F1491: 60KB+256B Flash Memory, 2KB RAM Available in 64-Pin Quad Flat Pack (QFP) For Complete Module Descriptions, See the MSP430x1xx Family User's Guide, Literature Number SLAU049
The MSP430F14x1 devices are identical to the MSP430F14x devices with the exception that the ADC12 module is not implemented.description
The Texas Instruments MSP430 family of ultralow-power microcontrollers consist of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low power modes is optimized to achieve extended battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6 µs. The MSP430x13x and the MSP430x14x(1) series are microcontroller configurations with two built-in 16-bit timers, a fast 12-bit A/D converter (not implemented on the MSP430F14x1 devices), one or two universal serial synchronous/asynchronous communication interfaces (USART), and 48 I/O pins. Typical applications include sensor systems that capture analog signals, convert them to digital values, and process and transmit the data to a host system. The timers make the configurations ideal for industrial control applications such as ripple counters, digital motor control, EE-meters, hand-held meters, etc. The hardware multiplier enhances the performance and offers a broad code and hardware-compatible family solution.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
AVAILABLE OPTIONS PACKAGED DEVICES TA PLASTIC 64-PIN QFP (PM) MSP430F149IPM MSP430F1491IPM PLASTIC 64-PIN QFP (PAG)
|Related products with the same datasheet|
|Some Part number from the same manufacture Texas Instruments, Inc.|
|MSP430F135IPM ti MSP430F135, 16-Bit Ultra-low-power Microcontroller, 16kB Flash, 512B RAM, 12 Bit ADC, Usart|
|MSP430F147 Ultra-low Power Microcontroller|
|MSP430F1471IPM ti MSP430F1471, 16-Bit Ultra-low-power Microcontroller, 32 KB Flash, 1KB RAM, 2 Usarts, HW Multiplier|
|MSP430F147IPAG ti MSP430F147, 16-Bit Ultra-low-power Microcontroller, 32 KB Flash, 1KB RAM, 12 Bit ADC, 2 Usarts, HW Multiplier|
|MSP430F148 Ultra-low Power Microcontroller|
|MSP430F1481IPM ti MSP430F1481, 16-Bit Ultra-low-power Microcontroller, 48 KB Flash, 2KB RAM, 2 Usarts, HW Multiplier|
|MSP430F148IPAG ti MSP430F148, 16-Bit Ultra-low-power Microcontroller, 48 KB Flash, 2KB RAM, 12 Bit ADC, 2 Usarts, HW Multiplier|
|MSP430F149 Ultra-low Power Microcontroller|
|MSP430F1491IPM ti MSP430F1491, 16-Bit Ultra-low-power Microcontroller, 60 KB Flash, 2KB RAM, 2 Usarts, HW Multiplier|
|MSP430F149IPAG ti MSP430F149, 16-Bit Ultra-low-power Microcontroller, 60 KB Flash, 2KB RAM, 12 Bit ADC, 2 Usarts, HW Multiplier|
|MSP430F155 Ultra-low Power Microcontroller|
|MSP430F155IPM ti MSP430F155, 16-bit Ultra-low-power MCU, 16kB Flash, 512B RAM, 12-Bit ADC, Dual 12-Bit DAC, Usart, I2C, Dma|
|MSP430F156 Ultra-low Power Microcontroller|
SN74ALVC162836 : Bus Oriented Circuits 20-bit Universal Bus Driver With 3-state Outputs
SN74CBTD16211DGV : 24-bit Fet Bus Switch With Level Shifting
TAS5076PFC : Six-channel Digital Audio PWM Processor
TLC354 : Lincmos(tm) Quadruple Differential Comparator: Quad
TPS2828DBVR : MOSFET and Power Drivers ti TPS2828, Inverting High-speed MOSFET Driver
REF5025AIDG4 : Low Noise, Very Low Drift, Precision VOLTAGE REFERENCE The REF50xx is a family of low-noise, low-drift, very high precision voltage references. These references are capable of both sinking and sourcing, and are very robust with regard to line and load changes.
SN74LS04NSRG4 : Quadruple 2-input Positive-and Gates
UCC3915DPG4 : Pmic - Hot Swap Integrated Circuit (ics) Hot-Swap Switch Tube Adjustable 7 V ~ 15 V; IC 15V PROG PWR MANAGER 16-SOIC Specifications: Applications: General Purpose ; Type: Hot-Swap Switch ; Package / Case: 16-SOIC (0.154", 3.90mm Width) ; Packaging: Tube ; Current Limit: Adjustable ; Internal Switch(s): Yes ; Operating Temperature: 0°C ~ 70°C ; Voltage - Supply: 7 V ~ 15 V ; Lead Free Status: Lead Free ; RoHS Statu
SN74AHCT174NSRE4 : D-Type Flip-Flops ti SN74AHCT174, Hex D-type Flip-flops With Clear
74LVCH16901DGGRE4 : Logic - Universal Bus Function Integrated Circuit (ics) Universal Bus Transceiver Tape & Reel (TR) 24mA, 24mA 1.65 V ~ 3.6 V; IC UNIV BUS TXRX 18BIT 64TSSOP Specifications: Number of Circuits: 18-Bit ; Package / Case: 64-TFSOP (0.240", 6.10mm Width) ; Logic Type: Universal Bus Transceiver ; Packaging: Tape & Reel (TR) ; Mounting Type: Surface Mount ; Number of Inputs: - ; Current - Output High, Low: 24mA, 24mA ; Operating Temperature: -40°C ~ 85°C ;
C511A-RN : 8-bit CMOS Microcontroller. Data Sheet C511/C511A/C513/C513A/C513A-H Revision History : Current Version : 06.96 Previous Releases : Page Several 02.96, 05.95 Subjects (changes since last revision) Corrections of text Figure 22: external clock configuration corrected Fully software compatible to standard 8051/8052 microcontrollers to 12 MHz operating frequency × 8 ROM / EEPROM.
COP820CJ : COP8 Family->Mask ROM. COP820CJ - 8-Bit CMOS ROM Based Microcontrollers With 1k or 2k Memory, Comparator And Brown Out Detector, Package: Mdip, Pin Nb=28.
E0C63358 : CISC->CISC Arch. 4-bit Single Chip Microcomputer.
H8SX/1525 : 32-Bit Cisc Microcontroller With On-chip Flash Memory, Supporting CAN In-vehicle Lan Standard.
HE89A21 : Telecom Application MCU. LCD Dots = 128~64 ;; Reg. = -- ;; LCD Type = i ;; ROM = 16K ;; RAM = 512 ;; I/o = 16~32 ;; Vo = -- ;; PWM = -- ;; Op = -- ;; Dao = -- ;; Timer(16-bits) = T1,T2,TB ;; WDT = ;; DTMF = ;; Remark =.
HMS91C7132 : 90 Series->Application Specific. 8-BIT Single-chip Monitor Microcontrollers.
IC89E54 : . 8-BITS SINGLE MICROCONTROLLER with 16/32/64-Kbytes of FLASH, 256 byte +512 byte RAM 80C52 based architecture 256 Byte RAM internal RAM and 512 Bytes auxiliary RAM available Three 16-bit Timer/Counters Full duplex serial channel Boolean processor Power Save Mode : IC89E58, IC89E64 are members of ICSI embedded microcontroller family. The IC89E54/58/64.
KS88C01416 : S3C8(KS88) Series. = KS88C01416 General Purpose 8 Bit Microcontroller ;; ROM(KB) = 16 ;; RAM(bytes) = - ;; I/o Pins = 26 ;; Interrupt (Int/Ext) = 5/12 ;; Timer/counters = BT/WDT/8Tx2/16T ;; Serial Interface = - ;; LCD (Seg/Com) = - ;; ADC (BitxCh) = - ;; PWM(BitxCh) = 8x2 ;; Max. OSC.Freq. (MHz) = 8MHz ;; VDD(V) = 2.0~5.5 ;; Other = Lvd,carrier Generator.
P83C562EBA : 8-bit Microcontroller. Product File under Integrated Circuits, IC20 1997 Apr 16 CONTENTS GENERAL ORDERING INFORMATION BLOCK DIAGRAM FUNCTIONAL DIAGRAM PINNING INFORMATION Pinning Pin FUNCTIONAL MEMORY ORGANIZATION Program Memory Addressing I/O FACILITIES PULSE WIDTH MODULATED OUTPUTS Prescaler Frequency Control Register (PWMP) Pulse Width Register 0 (PWM0) Pulse Width Register.
PIC16LF83-04/P : 18-pin Flash/eePROM 8-bit Microcontrollers. Only 35 single word instructions to learn All instructions single cycle except for program branches which are two-cycle Operating speed: - 10 MHz clock input 400 ns instruction cycle Device PIC16F83 Program Memory (words) 512 Flash Data RAM EEPROM (bytes) Max. Freq (MHz) In-Circuit Serial Programming (ICSPTM) - via two pins (ROM devices support only.
PIC18F6525 : PICmicro with analog capability. 64/80-Pin High Performance, 64-Kbyte Enhanced FLASH Microcontrollers with A/D Note the following details of the code protection feature on Microchip devices: Microchip products meet the contained in their particular Microchip Data Sheet. Microchip believes that its family of products is one of the most secure families of its kind on the market today,.
S-70L01AQSSeries : . Author: Shirai Masaaki <Information level> A: Index: <Product> Division name: 01 IC Category 1: Category 2: Cal No.: 17 ASSP 1. paging decoder S70L01AQS Public (Printing O.K.) B: Technical Date: 99/01/12 (Tuesday) 19:47 (modified: 99/01/12(Tuesday)) The volume of the buzzer sound cannot be increased from S-70L01AQS. If such an adjustment.
S3C72E8 : S3C7(KS57) Series. = S3C72E8 4-bit CMOS Single-chip Microcontroller ;; ROM(KB) = 8 ;; RAM Nibble = 5228 ;; I/o Pins = 39 ;; Interrupt (Int/Ext) = 2/3 ;; Timer/counters = BT/WT/8T ;; Sio = - ;; LCD (Seg/Com) = 60/9 ;; ADC (BitxCh) = - ;; PWM(BitxCh) = - ;; Max. OSC.Freq. (MHz) = 6 ;; VDD(V) = 1.8~5.5 ;; Other = RC Osc.,subsystem Clock,buzzer Output ;; Package.
TMP47P407VF : CISC->TMP. CMOS 4-bit Microcontroller.
TMP87C409M : TLCS-870 Series. ROM Size = 4K X 8-bit ;; RAM Size = Null ;; Supply Voltage = - ;; I/o Count = Null ;; Unique = - ;; Additional Information = More Info.
TMP90CH45N/F : TLCS-90 Series. 1. Outline and Characteristics The is a high-speed, high performance 8-bit microcontroller developed for application in the control of various devices. The TMP90CH45 CMOS 8-bit microcontroller integrates an 8bit CPU, RAM, A/D converter, multi-function timer/event counter, general-purpose serial interface and programmable chip selector in a single chip.
HT49R70A-1 : The HT49R70A-1/HT49C70-1/HT49C70L are 8-bit, high performance, RISC architecture microcontroller devices specifically designed for a wide range of LCD applications. The mask version HT49C70-1 and HT49C70L are fully pin and functionally compatible with the OTP version HT49R70A-1 device. The HT49C70L is a low voltage version, with the ability to operate.
HT46RU232 : A/D Type 8-Bit OTP MCU With UART The HT46RU232 is 8-bit, high performance, RISC architecture microcontroller devices specifically designed for A/D applications that interface directly to analog signals, such as those from sensors. The advantages of low power consumption, I/O flexibility, programmable frequency divider, timer functions, oscillator options,.