msm9223 Oki Semiconductor, msm9223 Datasheet - Page 20

• Manufacturer Part Number: msm9223
• Description: 27-bit Duplex/triplex Vfd Controller/driver With Digital Dimming, Adc And Keyscan
• Manufacturer: Oki Semiconductor

¡ Semiconductor
4) P-in/S-out shift resistor
When the switch data output mode is selected and SC goes L, all the key data send to the shift
resistor, and the up/down counter is reset and the INT signal goes "L".
CS
Data I/O
CLOCK
INT
When CS goes L, the up/down counter is reset and the INT goes "L".
C1
C2
ROW1
C3
C4 C5
Fig.6
C1
C2
ROW2
C3
C4 C5
C1
C2
ROW5
C3
C4 C5
R1
MSM9223
Rotary
Q1
Q2
20/24
Q3