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Details, datasheet, quote on part number:Z86L71
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Datasheet text preview:
PRELIMINARY PRODUCT SPECIFICATION
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Z86L70/71/75/C71
IR/LOW-VOLTAGE MICROCONTROLLER
FEATURES
Part Z86L70 Z86L71 Z86L75 Z86C71 ROM (KB) 2 8 4 8 RAM* (Bytes) 125 237 237 237 I/O 14 16 14 16 Voltage Ranges 2.0V to 3.9V 2.0V to 3.9V 2.0V to 3.9V 4.5V to 5.5V
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One Programmable 16-Bit Counter/Timer with One Capture Register Programmable Input Glitch Filter for Pulse Reception
Five Priority Interrupts Low Voltage Detection and Protection Programmable Watch-Dog/Power-On Reset Circuits Two Independent Comparators with Programmable Interrupt Polarity On-Chip Oscillator that Accepts a Crystal, Ceramic Resonator, LC, RC (mask option), or External Clock Drive Mask Selectable 200 KOhm Pull-Ups on Ports 0, 2, 3
Note: *General-Purpose
Two Standby Modes (Typical) STOP - 2 µA HALT - 0.8 mA Special Architecture to Automate Both Generation and Reception of Complex Pulses or Signals: One Programmable 8-Bit Counter/Timer with Two Capture Registers
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GENERAL DESCRIPTION
The Z86L7X family of IR (Infrared)/Low-Voltage Microcontrollers are ROM/ROMless-based members of the Z8® MCU single-chip family with 237/125 bytes of internal RAM. The differentiating factor between these devices is the availability of RAM, ROM and package options. Offering the 3V versions (Z86LXX) with the Z86C71 gives optimum performance in both the low and high voltage ranges. Zilog's CMOS Low-Voltage Microcontrollers offer fast execution, efficient use of memory, sophisticated interrupts, input/output bit manipulation capabilities, automated pulse generation/reception, and internal key-scan pull-up resistors. The Z86L7X product line offers easy hardware/software system expansion with cost-effective and low power consumption. The Z86L7X architecture is based on Zilog's 8-bit microcontroller core with an Expanded Register File to allow access to register mapped peripherals, I/O circuits, and powerful counter/timer circuitry. The Z8® MCU offers a flexible I/O scheme, an efficient register and address space structure, and a number of ancillary features that are useful in many consumer, automotive, computer peripheral, and battery operated hand-held applications. There are three basic address spaces available to support a wide range of configurations: Program Memory, Register File, and Expanded Register File. The register file is composed of 256/144 bytes of RAM. It includes four I/O port registers, 15 control and status registers and the rest are General-Purpose registers. The Expanded Register File consists of two additional register groups (F and D). External Memory is not available on 18 and 20-pin versions.
DS97LVO0500
PRELIMINARY
1-1
Z86L70/71/75/C71 IR/Low-Voltage Microcontroller
Zilog
GENERAL DESCRIPTION (Continued)
To unburden the program from coping with such real-time problems as generating complex waveforms or receiving and demodulating complex waveform/pulses, the Z86L7X family offers a new intelligent counter/timer architecture with 8-bit and 16-bit counter/timers (Figure 1). Also included are a large number of user-selectable modes, and two on-board comparators to process analog signals (Figure 2).
HI16 8
LO16 8
16-Bit T16 124 8 8 SCLK Clock Divider TC16H 16 8 TC16L And/Or Logic HI8 8 Input Glitch Filter Edge Detect Circuit 8-Bit T8 8 TC8H 8 TC8L LO8 8
Timer 16
Timer 8/16
Timer 8
Figure 1. Counter/Timer Block Diagram
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PRELIMINARY
DS97LVO0500
Zilog
Z86L70/71/75/C71 IR/Low-Voltage Microcontroller
Register File 144/256 x 8-bit P00 P07 Port 0 Register Bus Internal Address Bus ROM 2K/4K/8K x 8 P20 P21 P22 P23 P24 P25 P26 P27 Internal Data Bus Z8 Core Two Analog Comparators Interrupt Control Port 2 Expanded Register File Expanded Register Bus Machine Timing & Instruction Control Port 3
P31 P32 P33 P34 P35 P36
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I/O Bit Programmable
XTAL2 XTAL1
Power Counter/Timer 16 16-Bit
VDD VSS
Counter/Timer 8 8-Bit
Figure 2. Functional Block Diagram
Note: All Signals with a preceding front slash, "/", are active Low, for example, B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below: Connection Power Ground Circuit VCC GND Device VDD VSS
DS97LVO0500
PRELIMINARY
1-3
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