PCF8593 데이터 시트보기 (PDF) - Philips Electronics

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PCF8593

Low power clock/calendar

Philips Electronics 

Philips Semiconductors

Low power clock/calendar

Product specification

PCF8593

handbook, full pagewidth

MSB

LSB

7

6

5

4

3

2

1

0 memory location 00

MBD810

timer flag (50% duty factor

seconds flag if alarm

enable bit is 0)

alarm flag (50% duty factor

minutes flag if alarm

enable bit is 0)

alarm enable bit:

0 alarm disabled: flags toggle

alarm control register disabled

(memory locations 08 to 0F

can be treated as RAM)

1 enable Alarm Control register

(memory location 08 is the

Alarm Control register)

mask flag:

0 read locations 05 to 06

unmasked

1 read date and month count

directly

function mode :

00 clock mode 32.768 kHz

01 clock mode 50 Hz

10 event-counter mode

11 test modes

hold last count flag :

0 count

1 store and hold last count in

capture latches

stop counting flag :

0 count pulses

1 stop counting, reset divider

Fig.3 Control/status register.

1997 Mar 25

6

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