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

? 64Kbits 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

—8-lead PDIP, 14-lead SOIC

X5643S14屬于集成電路（IC） > 監(jiān)控器。瑞薩科技有限公司制造生產的X5643S14監(jiān)控器PMIC 監(jiān)控器用于監(jiān)視和/或控制電路中的電壓軌，能夠連接微控制器以維持一定的功率限值。監(jiān)控器類型包括電池備用電路、監(jiān)控器、多電壓監(jiān)控器、電源監(jiān)控器、穩(wěn)壓器/監(jiān)控器、復位計時器、定序器、簡單復位/上電復位、智能開/關控制器、系統(tǒng)管理器、電壓檢測器和看門狗電路。