pcd3312cp NXP Semiconductors, pcd3312cp Datasheet - Page 13

• Manufacturer Part Number: pcd3312cp
• Description: Dtmf/modem/musical-tone Generators
• Manufacturer: NXP Semiconductors

Philips Semiconductors
8.5
The PCD3311C and PCD3312C accept data input from a microcontroller and are ‘slave receivers’ when operating via
the I
I
in Sections 8.5.1 and 8.5.2.
8.5.1
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 = V
mode. The time symbols are explained in Table 6.
1996 Nov 21
2
handbook, full pagewidth
C-bus and how to use it” document order no. 9398 393 40011. The timing requirements for the devices are described
DTMF/modem/musical-tone generators
2
C-bus. They support the ‘standard’ and ‘low-speed’ modes of the I
Timing specifications
S
TANDARD MODE
SCL
SDA
SDA
MBC764
IL
and HIGH = V
t BUF
t HD;STA
IH
, see Chapter 11. Figure 12 shows a complete data transfer in standard
Fig.11 Standard mode timing.
t LOW
13
t SU;STA
t r
t HD;DAT
2
C-bus, but not the ‘fast’ mode detailed in “The
t HIGH
PCD3311C; PCD3312C
t f
t SU;DAT
t SU;STO
Product specification