upd17072 Renesas Electronics Corporation., upd17072 Datasheet - Page 164

• Manufacturer Part Number: upd17072
• Description: 4-bit Single-chip Microcontroller With Hardware For Digital Tuning System
• Manufacturer: Renesas Electronics Corporation.

164
Common signal
Segment signal (example)
A, B, C, D = extinguishes
LCDn pin
A, B, C, D = lights
LCDn pin
A, B, C = lights, D = extinguishes
LCDn pin
COM0 pin
COM1 pin
COM2 pin
COM3 pin
Figure 18-7. Common Signal and Segment Signal Output Waves
1 frame (16 ms)
COM0 pin
COM1 pin
COM2 pin
COM3 pin
4 ms
Each segment signal output pin (LCDn pin)
A
B
C
D
PD17072,17073
V
V
GND
V
V
GND
V
V
GND
V
V
GND
V
GND
V
GND
V
GND
LCD1
LCD0
LCD1
LCD0
LCD1
LCD0
LCD1
LCD0
LCD1
LCD1
LCD1