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X5001

Intersil Corporation
Part Number X5001
Manufacturer Intersil Corporation
Description CPU Supervisor
Published May 28, 2007
Detailed Description ® X5001 Data Sheet May 30, 2006 FN8125.1 CPU Supervisor FEATURES • 200ms power-on reset delay • Low VCC detection and ...
Datasheet PDF File X5001 PDF File

X5001
X5001

Overview
® X5001 Data Sheet May 30, 2006 FN8125.
1 CPU Supervisor FEATURES • 200ms power-on reset delay • Low VCC detection and reset assertion —Five standard reset threshold voltages —Adjust low VCC reset threshold voltage using special programming sequence —Reset signal valid to VCC = 1V • Selectable nonvolatile watchdog timer —0.
2, 0.
6, 1.
4 seconds —Off selection —Select settings through software • Long battery life with low power consumption —<50µA max standby current, watchdog on —<1µA max standby current, watchdog off • 2.
7V to 5.
5V operation • SPI mode 0 interface • Built-in inadvertent write protection —Power-up/power-down protection circuitry —Watchdog change latch • High reliability • Available packages www.
DataSheet4U.
com —8 Ld TSSOP —8 Ld SOIC —8 Ld PDIP • Pb-free plus anneal available (RoHS compliant) BLOCK DIAGRAM Watchdog Transition Detector SI SO SCK CS/WDI Data Register Command Decode & Control Logic DESCRIPTION This device combines three popular functions, Poweron Reset, Watchdog Timer, and Supply Voltage Supervision in one package.
This combination lowers system cost, reduces board space requirements, and increases reliability.
The watchdog timer provides an independent protection mechanism for microcontrollers.
During a system failure, the device will respond with a RESET signal after a selectable time out interval.
The user selects the interval from three preset values.
Once selected, the interval does not change, even after cycling the power.
The user’s system is protected from low voltage conditions by the device’s low VCC detection circuitry.
When VCC falls below the minimum VCC trip point, the system is reset.
RESET is asserted until VCC returns to proper operating levels and stabilizes.
Five industry standard VTRIP thresholds are available, however, Intersil’s unique circuits allow the threshold to be reprogrammed to meet custom requirements or to fine-tune the threshold for applications requiring higher precision.
The device utilizes Intersil’s p...


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