X5325P Datasheet PDF - Intersil

●DESCRIPTION

●These devices combine four popular functions, Power-on Reset Control, Watchdog Timer, Supply Voltage Supervision, and Block Lock Protect Serial EEPROM Memory in one package. This combination lowers system cost, reduces board space requirements, and increases reliability.

●FEATURES

●• Selectable watchdog timer

●• Low VCC detection and reset assertion

●   —Five standard reset threshold voltages

●   —Re-program low VCC reset threshold voltage using special programming sequence

●   —Reset signal valid to VCC = 1V

●• Determine watchdog or low voltage reset with a volatile flag bit

●• Long battery life with low power consumption

●   —<50µA max standby current, watchdog on

●   —<1µA max standby current, watchdog off

●   —<400µA max active current during read

●• 32Kbits of EEPROM

●• Built-in inadvertent write protection

●   —Power-up/power-down protection circuitry

●   —Protect 0, 1/4, 1/2 or all of EEPROM array with Block Lock™ protection

●   —In circuit programmable ROM mode

●• 2MHz SPI interface modes (0,0 & 1,1)

●• Minimize EEPROM programming time

●   —32-byte page write mode

●   —Self-timed write cycle

●   —5ms write cycle time (typical)

●• 2.7V to 5.5V and 4.5V to 5.5V power supply operation

●• Available packages

●   —14 Ld TSSOP, 8 Ld SOIC, 8 Ld PDIP

●• Pb-free plus anneal available (RoHS compliant)