PCF8583 datasheet(6/28 Pages) PHILIPS

Part #	PCF8583

Description	Clock/calendar with 240 x 8-bit RAM

Download	28 Pages

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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6 / 28 page

1997 Jul 15

6

Philips Semiconductors

Product speciﬁcation

Clock/calendar with 240

× 8-bit RAM

PCF8583

Fig.3 Control/status register.

handbook, full pagewidth

memory location 00

reset state: 0000 0000

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

are free RAM space)

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

765

4

3

2

1

0

MSB

LSB

MRB017

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PCF8583 Datasheet(PDF) 6 Page - NXP Semiconductors

PCF8583 Datasheet(HTML) 6 Page - NXP Semiconductors

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