CDP68HC68T1 - CMOS Serial Real-Time Clock

Renesas

Features

SPI (Serial Peripheral Interface).
Full Clock Features - Seconds, Minutes, Hours (12/24, AM/PM), Day of Week, Date, Month, Year (0 to 99), Automatic Leap Year.
32 Wordx8-Bit RAM.
Seconds, Minutes, Hours Alarm.
Automatic Power Loss Detection.
Low Minimum Standby (Timekeeping) Voltage.
2.2V.
Selectable Crystal or 50/60Hz Line Input.
Buffered Clock Output.
Battery Input Pin that Powers Oscillator and also Conn.

CDP68HC68T1 cmos serial real-time clock by Renesas - Datasheet Preview

Datasheet Details

Part number	CDP68HC68T1
Manufacturer	Renesas
File Size	949.68 KB
Description	CMOS Serial Real-Time Clock
Datasheet	CDP68HC68T1 Datasheet

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Full PDF Text Transcription

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DATASHEET CDP68HC68T1 CMOS Serial Real-Time Clock With RAM and Power Sense/Control FN1547 Rev 9.00 Decemember 8, 2015 The CDP68HC68T1 Real-Time Clock provides a time/calendar function, a 32 byte static RAM, and a 3 wire Serial Peripheral Interface (SPI Bus). The primary function of the clock is to divide down a frequency input that can be supplied by the on-board oscillator in conjunction with an external crystal or by an external clock source. The internal oscillator can operate with a 32kHz, 1MHz, 2MHz, or 4MHz crystal. An external clock source with a 32kHz, 1MHz, 2MHz, 4MHz, 50Hz or 60Hz frequency can be used to drive the CDP68HC68T1. The time registers hold seconds, minutes, and hours, while the calendar registers hold day-of-week, date, month, and year information.

Published: Feb 1, 2019 |