PCD3312C 查看數據表（PDF） - Philips Electronics
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PCD3312C Datasheet PDF : 28 Pages
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Philips Semiconductors
DTMF/modem/musical-tone generators
Product specification
PCD3311C; PCD3312C
handbook, full pagewidth
acknowledge
from slave
acknowledge
from slave
MSB
R/W
S 0 1 0 0 1 0 A0 0 A X X D5 D4 D3 D2 D1 D0 A P
MGG512
slave address
data
internal STROBE
for data latching
Fig.6 I2C-bus data format.
7.10 Power-on reset
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 TABLES OF INPUT AND OUTPUT
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 = VDD
0 = LOW = VSS
X = don’t care
Table 2 Input data for no output tone, TONE in 3-state
D5
D4
D3
D2
D1
X
0
0
0
0
X
0
0
0
0
X
0
0
0
1
X
0
0
0
1
Note
1. The alternative HEX values depend on the value of D5.
D0
HEX(1) OSCILLATOR
0
00 or 20
ON
1
01 or 21
OFF
0
02 or 22
OFF
1
03 or 23
OFF
1996 Nov 21
8
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