onsemi CAT1640LI-25-G

CPU Supervisor with 64 k Serial EEPROM Memory

CAT1640LI-25-G, PROCESSOR SUPERVISOR 3 V, 3.3 V, 5 V, RESET INPUT, 8-PIN PDIP

Voltage Supervisor/Reset IC, Fixed, 1 Channel, +2.625V, CMOS, PDIP8

Processor Supervisor 3V/3.3V/5V 8-Pin PDIP Rail

Processor Supervisor 1 Active Low/Open Drain 8-Pin PDIP Tube

IC SUPERVSR CPU 64K EEPROM 8DIP

VOLTAGE DETECTOR, PDIP-8, -40 TO 85DEG C;

Lead Free Active Low Obsolete DUAL Simple Reset/Power-On Reset Supervisor -40C~85C TA 3mA 1W 130ms Minimum

The CAT1640 is a complete memory and supervisory solution for microcontroller-based systems. A 64kbit serial EEPROM memory and a system power supervisor with brown-out protection are integrated together in low power CMOS technology. Memory interface is via a 400kHz IC bus. The CAT1640 provides a precision VCC sense circuit and drives an open drain output RESET low whenever VCC falls below the reset threshold voltage. The power supply monitor and reset circuit protect memory and system controllers during power up/down and against brownout conditions. Five reset threshold voltages support 5V 3.3V and 3V systems. If power supply voltages are out of tolerance reset signals become active preventing the system microcontroller ASIC or peripherals from operating. Reset signals become inactive typically 200 ms after the supply voltage exceeds the reset threshold level. With both active high and low reset options interface to microcontrollers and other ICs is simple. In addition the RESET pin can be used as an input for push-button manual reset capability. The CAT1640 memory