clock
Description
The CDP1879 real-time clock supplies time and calendar information from seconds to months in BCD format. It consists of 5 separately addressable and programmable counters that divide down an oscillator input. The clock i...
clock With RAM and Power Sense/Control
Pinouts
CDP68HC68T1 (PDIP, SBDIP, SOIC) TOP VIEW
CLKOUT CPUR INT SCK MOSI MISO CE VSS 1 2 3 4 5 6 ...calendar function, a 32 byte static RAM, and a 3 wire Serial Peripheral Interface (SPI Bus). The pri...
Description
From old datasheet system CMOS Serial Real-Time clock With RAM and Power Sense/Control
clock/calendar
16 April 1999 Product specification
1. General description
The PCF8563 is a CMOS real-time clock/calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage-low detector are al...
...hannel 8-bit timers * Real time clock with calendar function. * Crystal/Ceramic oscillator or external clock can be used as the clock source. * Power control: Normal, Idle, and Stop mode * 1-channel 8-bit basic timer and 3-bit watch-dog tim...
clock
The PD4991A is a CMOS integrated circuit that has the ability to input/output 4-bit parallel time data and calendar data to/from a microcomputer and includes an alarm function. Its reference oscillation frequency is 32.768 kHz. Hou...