| Manufacturer | Part # | Datasheet | Description |
 NEC |
UPD4990A
|
129Kb/20P
|
SERIAL I/O CALENDAR & CLOCK CMOS LSI
|
 Renesas Technology Corp |
UPD4990A
|
261Kb/22P
|
MOS INTEGRATED CIRCUIT
1989
|
 NEC |
UPD4990AC
|
129Kb/20P
|
SERIAL I/O CALENDAR & CLOCK CMOS LSI
|
 Renesas Technology Corp |
UPD4990AC
|
261Kb/22P
|
MOS INTEGRATED CIRCUIT
1989
|
 NEC |
UPD4990AG
|
129Kb/20P
|
SERIAL I/O CALENDAR & CLOCK CMOS LSI
|
 Renesas Technology Corp |
UPD4990AG
|
261Kb/22P
|
MOS INTEGRATED CIRCUIT
1989
|
 NEC |
UPD4991A
|
133Kb/32P
|
4-BIT PARALLEL I/O CALENDAR CLOCK
|
 Renesas Technology Corp |
UPD4991A
|
313Kb/34P
|
MOS INTEGRATED CIRCUIT
1993
|
 NEC |
UPD4991ACX
|
133Kb/32P
|
4-BIT PARALLEL I/O CALENDAR CLOCK
|
 Renesas Technology Corp |
UPD4991ACX
|
313Kb/34P
|
MOS INTEGRATED CIRCUIT
1993
|
 NEC |
UPD4991AGS
|
133Kb/32P
|
4-BIT PARALLEL I/O CALENDAR CLOCK
|
 Renesas Technology Corp |
UPD4991AGS
|
313Kb/34P
|
MOS INTEGRATED CIRCUIT
1993
|
 NEC |
UPD4992
|
101Kb/16P
|
8-Bit Parallel I/O Calendar Clock
|
 Renesas Technology Corp |
UPD4992
|
299Kb/18P
|
MOS INTEGRATED CIRCUIT
1992
|
 NEC |
UPD4992CX
|
101Kb/16P
|
8-Bit Parallel I/O Calendar Clock
|
 Renesas Technology Corp |
UPD4992CX
|
299Kb/18P
|
MOS INTEGRATED CIRCUIT
1992
|
 NEC |
UPD4992GS
|
101Kb/16P
|
8-Bit Parallel I/O Calendar Clock
|
 Renesas Technology Corp |
UPD4992GS
|
299Kb/18P
|
MOS INTEGRATED CIRCUIT
1992
|
 NEC |
UPD4992GS-E2
|
101Kb/16P
|
8-Bit Parallel I/O Calendar Clock
|
 Renesas Technology Corp |
UPD4992GS-E2
|
299Kb/18P
|
MOS INTEGRATED CIRCUIT
1992
|