pcd3312cp NXP Semiconductors, pcd3312cp Datasheet - Page 21

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

Philips Semiconductors
12 APPLICATION INFORMATION
1996 Nov 21
DTMF/modem/musical-tone generators
Fig.24 PCD3312C driven by microcontroller PCF84C21A. The PCF84C21A is a single-chip 8-bit microcontroller
with 2 kbytes ROM and I
Fig.23 PCD3311C driven by microcontroller with parallel data bus.
handbook, halfpage
handbook, halfpage
2
1
4
7
1
4
7
C-bus. The same application is possible with the PCD3311C with MODE = V
2
5
8
0
2
5
8
0
3 A
6 B
9 C
3 A
6 B
9 C
D
D
data bus
I
2
C bus
MICROCONTROLLER
MICROCONTROLLER
V SS
V SS
TELEPHONY
PCF84C21A
(4 or 8-BIT)
PURPOSE
GENERAL
3.58 MHz
OSCI OSCO
21
V DD
V DD
D0
D5
SCL
SDA
OSCI OSCO STROBE
MODE V DD
OSCI OSCO
A 0
PCD3311C
PCD3312C
4 pF
V SS
mute
mute
V DD
V SS
TONE
TONE
MBH669
MGG544
PCD3311C; PCD3312C
Product specification
SS
.