PCD3311 查看數據表（PDF） - Philips Electronics

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PCD3311

DTMF/modem/musical-tone generators

Philips Electronics 

Philips Semiconductors

DTMF/modem/musical-tone generators

Product specification

PCD3311C; PCD3312C

8.5 Timing specifications

The PCD3311C and PCD3312C accept data input from a microcontroller and are ‘slave receivers’ when operating via

the I2C-bus. They support the ‘standard’ and ‘low-speed’ modes of the I2C-bus, but not the ‘fast’ mode detailed in “The

I2C-bus and how to use it” document order no. 9398 393 40011. The timing requirements for the devices are described

in Sections 8.5.1 and 8.5.2.

8.5.1 STANDARD MODE

Masters generate a bus clock with a maximum frequency of 100 kHz. Detailed timing is shown in Fig.11, where the two

signal levels are LOW = VIL and HIGH = VIH, see Chapter 11. Figure 12 shows a complete data transfer in standard

mode. The time symbols are explained in Table 6.

handbook, full pagewidth

SDA

t BUF

t LOW

SCL

SDA

MBC764

t HD;STA

tr

t HD;DAT

t SU;STA

tf

t HIGH

t SU;DAT

t SU;STO

Fig.11 Standard mode timing.

1996 Nov 21

13

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