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SN54/74LS249中文资料PDF规格书
SN54/74LS249规格书详情
The SN54/74LS247 thru SN54/74LS249 are BCD-to-Seven-Segment Decoder/Drivers. The LS247 and LS248 are functionally and electrically identical to the LS47 and LS48 with the same pinout configuration. The LS249 is a 16-pin version of the 14-pin LS49 and includes full functional capability for lamp test and ripple blanking which was not available in the LS49.
LS247
• Open-Collector Outputs Drive Indicators Directly
• Lamp-Test Provision
• Leading/Trailing Zero Suppression
LS248
• Internal Pull-Ups Eliminate Need for External Resistors
• Lamp-Test Provision
• Leading/Trailing Zero Suppression
LS249
• Open-Collector Outputs
• Lamp-Test Provision
• Leading/Trailing Zero Suppression
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
TI |
2020+ |
CDIP |
80000 |
只做自己库存,全新原装进口正品假一赔百,可开13%增 |
询价 | ||
TI/TEXAS |
23+ |
CDIP-14P |
8931 |
询价 | |||
TI |
2020+ |
DIP14 |
16800 |
绝对原装进口现货,假一赔十,价格优势!? |
询价 | ||
TI/德州仪器 |
NA |
90000 |
集团化配单-有更多数量-免费送样-原包装正品现货-正规 |
询价 | |||
TI |
CDIP|14 |
71000 |
16余年资质 绝对原盒原盘 更多数量 |
询价 | |||
TI |
2022 |
DIP |
1250 |
原厂原装正品,价格超越代理 |
询价 | ||
TI |
19+ |
SSSP |
2539 |
原厂代理渠道,每一颗芯片都可追溯原厂; |
询价 | ||
TI |
23+ |
DIP |
2822 |
询价 | |||
TI |
23+ |
DIP |
5000 |
原装正品,假一罚十 |
询价 | ||
TI/MOT |
CDIP |
4500 |
询价 |