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UPD4991A

MOS INTEGRATED CIRCUIT

FEATURES: • Time (hour, minute, and second) and calendar (leap year, year, month, day, and date) counters • Leap year can be automatically identified or set • 12- and 24-hour modes selectable • 4-bit parallel input/output in BCD data format • Alarm function (hour, minute, second, month, day,

文件:313.81 Kbytes 页数:34 Pages

RENESAS

瑞萨

UPD4991A

4-BIT PARALLEL I/O CALENDAR CLOCK

[NEC] SEMICONDUCTOR SELECTION GUIDE

文件:133.54 Kbytes 页数:32 Pages

NEC

瑞萨

UPD4991ACX

4-BIT PARALLEL I/O CALENDAR CLOCK

[NEC] SEMICONDUCTOR SELECTION GUIDE

文件:133.54 Kbytes 页数:32 Pages

NEC

瑞萨

UPD4991ACX

MOS INTEGRATED CIRCUIT

FEATURES: • Time (hour, minute, and second) and calendar (leap year, year, month, day, and date) counters • Leap year can be automatically identified or set • 12- and 24-hour modes selectable • 4-bit parallel input/output in BCD data format • Alarm function (hour, minute, second, month, day,

文件:313.81 Kbytes 页数:34 Pages

RENESAS

瑞萨

UPD4991AGS

MOS INTEGRATED CIRCUIT

FEATURES: • Time (hour, minute, and second) and calendar (leap year, year, month, day, and date) counters • Leap year can be automatically identified or set • 12- and 24-hour modes selectable • 4-bit parallel input/output in BCD data format • Alarm function (hour, minute, second, month, day,

文件:313.81 Kbytes 页数:34 Pages

RENESAS

瑞萨

UPD4991AGS

4-BIT PARALLEL I/O CALENDAR CLOCK

[NEC] SEMICONDUCTOR SELECTION GUIDE

文件:133.54 Kbytes 页数:32 Pages

NEC

瑞萨

UPD4991A

4-BIT PARALLEL I/O CALENDAR CLOCK

Renesas

瑞萨

供应商型号品牌批号封装库存备注价格
NEC
SOP20
98+
64
全新原装进口自己库存优势
询价
NEC
24+
原廠封裝
6868
原装现货,可开13%税票
询价
NEC
24+
SOP
3000
自己现货
询价
原厂正品
23+
PLCC-68
5000
原装正品,假一罚十
询价
NEC
24+
SOP20
5989
公司原厂原装现货假一罚十!特价出售!强势库存!
询价
NEC
17+
SOP20
9988
只做原装进口,自己库存
询价
NEC
23+
SOP20
8650
受权代理!全新原装现货特价热卖!
询价
NEC
24+
65200
询价
NEC
2447
SOP20
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
24+
SOP-20
5850
进口原装原带
询价
更多UPD4991A供应商 更新时间2025-10-9 8:01:00