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N84C163

ON Semiconductor
Part Number N84C163
Manufacturer ON Semiconductor
Description Serial EEPROM
Published Dec 14, 2016
Detailed Description N84C163 Supervisory Circuits with EEPROM Serial 16-Kb I2C Precision Reset Controller and Watchdog Timer (16K) Descript...
Datasheet PDF File N84C163 PDF File

N84C163
N84C163

Overview
N84C163 Supervisory Circuits with EEPROM Serial 16-Kb I2C Precision Reset Controller and Watchdog Timer (16K) Description The N84C163 is a complete memory and supervisory solution for microcontroller−based systems.
A serial EEPROM memory (16K) with hardware memory write protection, a system power supervisor with brown out protection and a watchdog timer are integrated together in low power CMOS technology.
Memory interface is via an I2C bus.
The 1.
6−second watchdog circuit returns a system to a known good state if a software or hardware glitch halts or “hangs” the system.
The N84C163 watchdog monitors the WDI input pin.
The power supply monitor and reset circuit protects memory and system controllers during power up/down and against brownout conditions.
Five reset threshold voltages support 5 V, 3.
3 V and 3 V 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 signals, interface to microcontrollers and other ICs is simple.
In addition, a reset pin can be used as a debounced input for pushbutton manual reset capability.
The N84C163 memory features a 16−byte page.
In addition, hardware data protection is provided by a write protect pin WP and by a VCC sense circuit that prevents writes to memory whenever VCC falls below the reset threshold or until VCC reaches the reset threshold during power up.
This device is available in a green SOIC−8 package.
www.
onsemi.
com SOIC−8 CASE 751BD PIN CONFIGURATION SOIC 8 Lead WDI RESET WP GND 1 8 2 7 N84C163 3 6 4 5 VCC RESET SCL SDA Pin Name WDI RESET WP GND PIN FUNCTIONS Function Watchdog Timer Input Active Low Reset I/O Write Protect Ground Features • Watchdog Timer Input (WDI) • 400 kHz I2C Bus Compatible • 2.
7 V to 6.
0 V Operation • Low Power CMOS Technology • 16−By...


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