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UPD4990AC

SERIAL I/O CALENDAR & CLOCK CMOS LSI

SEMICONDUCTOR SELECTION GUIDE Microcomputer IC Memory Semi-Custom IC Particular Purpose IC General Purpose Linear IC Transistor / Diode / Thyristor Microwave Device / Consumer Use High Frequency Device Optical Device Packages Index (Quick Reference by Type N

文件:129.97 Kbytes 页数:20 Pages

NEC

瑞萨

UPD4990AC

MOS INTEGRATED CIRCUIT

FEATURES • Built-in counters for time (hour, minute, and second) and date (year, month, day, and week) • Leap years are adjusted automatically. • Data is represented in BCD notation (except months in hexadecimal notation) and input/output serially. • Commands can be set by inputting serial dat

文件:261.709 Kbytes 页数:22 Pages

RENESAS

瑞萨

UPD4990AG

MOS INTEGRATED CIRCUIT

FEATURES • Built-in counters for time (hour, minute, and second) and date (year, month, day, and week) • Leap years are adjusted automatically. • Data is represented in BCD notation (except months in hexadecimal notation) and input/output serially. • Commands can be set by inputting serial dat

文件:261.709 Kbytes 页数:22 Pages

RENESAS

瑞萨

UPD4990AG

SERIAL I/O CALENDAR & CLOCK CMOS LSI

SEMICONDUCTOR SELECTION GUIDE Microcomputer IC Memory Semi-Custom IC Particular Purpose IC General Purpose Linear IC Transistor / Diode / Thyristor Microwave Device / Consumer Use High Frequency Device Optical Device Packages Index (Quick Reference by Type N

文件:129.97 Kbytes 页数:20 Pages

NEC

瑞萨

供应商型号品牌批号封装库存备注价格
NEC
24+
DIP-16
3000
自己现货
询价
NEC
24+
DIP14P
6868
原装现货,可开13%税票
询价
NEC
19+
DIP
32000
原装正品,现货特价
询价
NEC
2447
DIP
100500
一级代理专营品牌!原装正品,优势现货,长期排单到货
询价
NEC
23+
DIP-16
50000
全新原装正品现货,支持订货
询价
UPD4990AC
3690
3690
询价
NEC
22+
DIP
12245
现货,原厂原装假一罚十!
询价
NEC
11+
DIP-16
2134
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价
2023+
5800
进口原装,现货热卖
询价
NEC
23+
DIP-16
8560
受权代理!全新原装现货特价热卖!
询价
更多UPD4990AC供应商 更新时间2025-10-5 16:01:00