UPD75238GJ

Manufacturer Part NumberUPD75238GJ
Description4 BIT SINGLE-CHIP MICROCOMPUTER
ManufacturerNEC [NEC]
UPD75238GJ datasheet
 
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Fig. 4-76 Correspondence between Display Data Memory and Segment Output
Bit 3
0 3
0 3
1A1H
1A0H
1A3H
1A2H
1A5H
1A4H
1A7H
1A6H
1A9H
1A8H
1ABH
1AAH
1ADH
1ACH
1AFH
1AEH
1B1H
1B0H
1B3H
1B2H
1B5H
1B4H
1B7H
1B6H
1B9H
1B8H
1BBH
1BAH
1BDH
1BCH
1BFH
1BEH(KS2)
Key
scan
KS2
data
Segment
S23 S22 S21 S20 S19 S18 S17 S16 S15 S14 S13 S12 S11 S10 S9 S8 S7 S6 S5 S4 S3 S2 S1 S0
output
Timing
T10 T11 T12 T13 T14 T15
output
Port H
output
PH3 PH2 PH1 PH0
24-segment mode
23-segment mode
22-segment mode
21-segment mode
20-segment mode
19-segment mode
18-segment mode
17-segment mode
16-segment mode
15-segment mode
14-segment mode
13-segment mode
12-segment mode
11-segment mode
10-segment mode
9-segment mode
0 3
0 3
0 3
1C3H
1C2H
1C1H
1C7H
1C6H
1C5H
1CBH
1CAH
1C9H
1CFH
1CEH
1CDH
1D3H
1D2H
1D1H
1D7H
1D6H
1D5H
1DBH
1DAH
1D9H
1DFH
1DEH
1DDH
1E3H
1E2H
1E1H
1E7H
1E6H
1E5H
1EBH
1EAH
1E9H
1EFH
1EEH
1EDH
1F3H
1F2H
1F1H
1F7H
1F6H
1F5H
1FBH
1FAH
1F9H
1FFH
1FEH(KS1)
1FDH
KS1
KS0
(When specified by digit select register)
(When neither segment output nor timing output is required)
PD75238
0
1C0H
T0
1C4H
T1
1C8H
T2
1CCH
T3
T4
1D0H
1D4H
T5
1D8H
T6
1DCH
T7
1E0H
T8
1E4H
T9
1E8H
T10
T11
1ECH
1F0H
T12
1F4H
T13
1F8H
T14
1FCH(KS0)
T15
Tks
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