UPD17073 NEC, UPD17073 Datasheet - Page 164
UPD17073
Manufacturer Part Number
UPD17073
Description
4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
Manufacturer
NEC
Datasheet
1.UPD17073.pdf
(226 pages)
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Part Number:
UPD17073GB-572-1A7-A
Manufacturer:
RENESAS
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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
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