74138中文资料PDF规格书
74138规格书详情
General Description
These Schottky-clamped circuits are designed to be used in high-performance memory-decoding or data-routing applications, requiring very short propagation delay times. In high-performance memory systems these decoders can be used to minimize the effects of system decoding. When used with high-speed memories, the delay times of these decoders are usually less than the typical access time of the memory. This means that the effective system delay introduced by the decoder is negligible.
Features
■ Designed specifically for high speed: Memory decoders Data transmission systems
■ DM74LS138 3-to-8-line decoders incorporates 3 enable inputs to simplify cascading and/or data reception
■ DM74LS139 contains two fully independent 2-to-4-line decoders/demultiplexers
■ Schottky clamped for high performance
■Typical propagation delay (3 levels of logic) DM74LS138 21 ns DM74LS139 21 ns
■ Typical power dissipation DM74LS138 32 mW DM74LS139 34 mW
产品属性
- 型号:
74138
- 制造商:
FAIRCHILD
- 制造商全称:
Fairchild Semiconductor
- 功能描述:
Decoder/Demultiplexer
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MOLEX/莫仕 |
2308+ |
460434 |
一级代理,原装正品,公司现货! |
询价 | |||
TI/德州仪器 |
2021+ |
DIP |
5000 |
原厂授权代理,海外优势订货渠道。可提供大量库存,详 |
询价 | ||
MOLEX/莫仕 |
24+ |
350BOX8176TRAY35PCSS |
990000 |
明嘉莱只做原装正品现货 |
询价 | ||
MOX |
1535+ |
350 |
询价 | ||||
MOLEX |
24+ |
SMD |
64580 |
原装现货假一赔十 |
询价 | ||
MOLEX |
560BOX6574TRAY42PCSS |
56520 |
一级代理 原装正品假一罚十价格优势长期供货 |
询价 | |||
MOLEX |
2020+ |
50000 |
主营进口连接器,原装现货超低价! |
询价 | |||
MOLEX |
23+ |
连接器 |
10500 |
专业做连接器接插件原装进口公司现货 |
询价 | ||
MOLEX |
50000 |
连接器专营加微13425146986 |
询价 | ||||
MOLEX-莫仕 |
24+25+/26+27+ |
车规-连接器- |
12680 |
一一有问必回一特殊渠道一有长期订货一备货HK仓库 |
询价 |