PCD3312 Ver la hoja de datos (PDF) - Philips Electronics

Número de pieza

componentes Descripción

Fabricante

PCD3312

DTMF/modem/musical-tone generators

Philips Electronics 

Philips Semiconductors

DTMF/modem/musical-tone generators

Product specification

PCD3311C; PCD3312C

handbook, full pagewidth

SDA

SCL

SDA

tBUF

tLOW

tf

tHD;STA

tr

tHIGH

tSU;STA

tHD;DAT

tSU;DAT

tSU;STO

MGG545

Fig.13 Low-speed mode timing.

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SDA

SCL

START

CONDITION

START BYTE

DUMMY REPEATED

ACKNOWLEDGE START

CONDITION

R/W

ADDRESS

ACKNOWLEDGE STOP

CONDITION

MGG546

Clock LOW minimum = 130 µs ±25 µs; clock HIGH minimum 390 µs ±25 µs.

Mark-to-space ratio = 1 : 3 (LOW-to-HIGH).

Start byte 0000 0001.

Maximum number of bytes = 6.

Premature termination of transfer not allowed.

Acknowledge clock bit must be provided by master.

Fig.14 Complete data transfer in low speed mode.

1996 Nov 21

15

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