HT1380 - Serial Timekeeper Chip

Serial Timekeeper Chip

Features

• Operating voltage: 2.0V~5.5V
• Maximum input serial clock: 500kHz at VDD=2V, 2MHz at VDD=5V
• Operating current: less than 1uA at 2V, less than 1.2uA at 5V
• TTL compatible
• - VIH: 2.0V~VDD+0.3V at VDD=5V
• - VIL: -0.3V~+0.8V at VDD=5V
• Two data transmission modes: single-byte or burst mode
• Serial I/O transmission
• All registers store BCD format
• HT1380: 8-pin DIP package