UPD75218 Datasheet, PDF (41/62 Pages) NEC – 4-BIT SINGLE-CHIP MICROCOMPUTER

µPD75218
11.3 ECR
Main power supply
Power
failure
detection
RAM
+
INT4
VDD
VSS
T0–T15 16
S0–S9 10
Fluorescent indication panel (FIP)
10 segments × 16 digits
Printer
µPD75218
Key matrix
(10 × 4)
PPO
BZ
X1 X2 XT1 XT2
41