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Details, datasheet, quote on part number:NE1619DS
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| Part: | NE1619DS |
| Category: | Power Management => Supervisory Circuits => System Supervisors/Reset => Temperature sensors |
| Description: | NE1619; Heceta 4 Temperature And Voltage Monitor;; Package: SOT519-1 (SSOP16) |
| Company: | Philips Semiconductors |
| Datasheet: | Download NE1619DS datasheet File size : 110 kB |
| Request For quote: | Find where to buy NE1619DS
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Datasheet text preview:
INTEGRATED CIRCUITS
NE1619 HECETA 4 Temperature and voltage monitor
Product data Supersedes data of 2000 Jul 13 2001 Aug 29
Philips Semiconductors
Philips Semiconductors
Product data
HECETA4 Temperature and voltage monitor
NE1619
GENERAL DESCRIPTION
The NE1619 is designed for monitoring the temperatures and supply voltages of microprocessor-based systems by measuring those parameters and comparing the readings with programmable limits. The device provides five possible analog inputs, a remote temperature sensor input and on-board local temperature sensor. The device also monitors its own power supply and provides digital inputs for the Pentium/PRO power supply ID code. The device communicates with the system controller via an SMBus (System Management bus) by which it can be programmed for operation and data collection. Readings come from conversions of the on-board A-to-D converter which cycles through all measurements in sequence in approximately one second when the conversion is started. The device includes a number of registers to store data of the device configuration, status, readings and limits. Except for the temperature-related data which are in 8-bit digital 2's complement format, all the data are in 8-bit digital straight format.
· Monitor different power supplies: 12 V, 5 V, 3.3 V, 2.5 V, VCCP, VDD · VIN accuracy of ±2% of full scale · Differential non-linearity of ±1LSB · No calibration required · Programmable temperature and voltage limits for alarms · Programmable Reset low state pulse output · SMBus 2-wire serial interface · Small 16-lead SSOP package · Compatible with Intel "Heceta 4" specification and reference
designs utilizing it
APPLICATIONS
FEATURES
· Monitor local and remote temperatures · Temperature accuracy of ±2 °C for local, and ±3 °C for remote
channel
· Temperature resolution of 1 °C · 2.8 V to 5.5 V supply range
ORDERING INFORMATION
PART NUMBER NE1619DS
· System thermal and hardware monitor · Desktop computers · Notebook computers · Industrial controllers · Telecom equipment
PACKAGE SSOP16: plastic shrink small outline package; 16 leads; body width 3.9 mm; lead pitch 0.635 mm
DRAWING NUMBER SOT519-1
2001 Aug 29
2
853-2202 27010
Philips Semiconductors
Product data
HECETA4 Temperature and voltage monitor
NE1619
PINNING Pin Configuration
SDA SCL GND VDD/3.3VSB VID0 VID1 VID2 VID3 1 2 3 4 5 6 7 8 16 A0/RESET/NTEST_OUT 15 VCCPVIN 14 2.5VIN 13 3.3VIN 12 5VIN 11 12VIN/VID4 10 D+ 9 D/NTEST_IN
SL01228
Pin Description
PIN # 1 2 3 4 5 6 7 8 9 10 11 SYMBOL SDA SCL GND VDD/3.3VSB VID0 VID1 VID2 VID3 D/NTEST_IN D+ 12VIN/VID4 FUNCTION DESCRIPTION Digital I/O. SMBus serial bi-directional data. Open-drain output. Digital Input. SMBus serial clock input. Ground. To be connected to system ground. Power supply. Can be connected to +3.3 V standby power if monitoring in low power states is required. This pin also serves as the analog input to monitor the VDD voltage level. Digital Input. For Voltage ID readouts from the processor. This value is read into the VID status register (LSB bit). Digital Input. For Voltage ID readouts from the processor. This value is read into the VID status register. Digital Input. For Voltage ID readouts from the processor. This value is read into the VID status register. Digital Input. For Voltage ID readouts from the processor. This value is read into the VID status register. Analog/Digital Input. This pin is connected to the negative terminal of the remote temperature sensor for analog input. If this pin is held high at power-up, for digital input, it enables the NAND-TREE test mode. Analog Input. This pin is connected to the positive terminal of the remote temperature sensor. Analog/Digital Input. Defaults at power-up to analog input for monitoring the +12 V supply. This pin is programmable to be a digital input for voltage ID readouts from the processor. Its state is read into the VID4 status register. Analog Input. For monitoring the +5 V supply. Analog Input. For monitoring the +3.3 V supply. Analog Input. For monitoring the +2.5 V supply. Analog Input. For monitoring the processor voltage supply (0 to 3.0 V) Digital I/O. At power-up, the logic input of this pin defines the LSB bit of the device slave address. This pin can be configured to give a low pulse reset output of 20ms minimum. This pin also functions as the output in the NANDTREE test mode.
12 13 14 15 16
5VIN 3.3VIN 2.5VIN VCCPVIN A0/RESET/NTEST_IN
2001 Aug 29
3
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