pcd3312cp NXP Semiconductors, pcd3312cp Datasheet - Page 8

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

Philips Semiconductors
7.10
In order to avoid an undefined state when the power is switched ON, the devices have an internal reset circuit which sets
the standby mode (oscillator OFF).
7.11
The specified output tones are obtained when a 3.579545 MHz crystal is used.
In each table, the logical states for the input data lines are related to voltage levels as follows:
1 = HIGH = V
0 = LOW = V
X = don’t care
Table 2 Input data for no output tone, TONE in 3-state
Note
1. The alternative HEX values depend on the value of D5.
1996 Nov 21
handbook, full pagewidth
DTMF/modem/musical-tone generators
D5
X
X
X
X
Power-on reset
TABLES OF INPUT AND OUTPUT
SS
DD
MGG512
D4
S
0
0
0
0
MSB
0
1
slave address
0
D3
0
0
0
0
0
1
0
Fig.6 I
A0
D2
0
0
0
0
R/W
acknowledge
0
2
from slave
C-bus data format.
A
8
X
D1
X
0
0
1
1
D5
D4
data
D3
D0
0
1
0
1
PCD3311C; PCD3312C
D2
D1
acknowledge
D0
internal STROBE
for data latching
from slave
00 or 20
01 or 21
02 or 22
03 or 23
HEX
A
(1)
P
Product specification
OSCILLATOR
OFF
OFF
OFF
ON