PT6332 Datasheet, PDF (14/37 Pages) Princeton Technology Corp – VFD Driver/Controller IC

VFD Driver/Controller IC
SERIAL DATA OUTPUT
When stopped with CL at the low level
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PT6332
CE
CL
DI
1
1
1
1
0
0
0
1
B0 B1 B2 B3 A0 A1 A2 A3
A d d re ss
DO
∗ KD1 KD2
KD 24 KD 25 SA ∗
∗
∗
∗
∗
Output Data
When stopped with CL at the high level
CE
CL
DI
1
1
1
1
0
0
0
1
B0 B1 B2 B3 A0 A1 A2
A3
A d d re ss
DO
∗ KD1 KD2 KD3
KD 24 KD 25 SA ∗
∗
∗
∗
∗
∗
Output Data
Figure 5
Note:
*
: Don’t Care
Address
: Applications must send the value (8F_H) as shown in figure 5
KD1 to KD25 : Key Data
SA
: Sleep Acknowledge Data
The key data (KD1 to KD25) and the sleep acknowledge data (SA) will be invalid if the key data is
read when DO is high.
PT6332 V1.0
- 14 -
February, 2006