74LS139中文資料仙童半導(dǎo)體數(shù)據(jù)手冊PDF規(guī)格書
替換型號
74LS139規(guī)格書詳情
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
產(chǎn)品屬性
- 型號：
74LS139
- 制造商：
MOTOROLA
- 制造商全稱：
Motorola, Inc
- 功能描述：
DUAL 1-OF-4 DECODER/ DEMULTIPLEXER
| 供應(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
FAIRCHILD/仙童 |
23+ |
NA/ |
20 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
FUJITSU |
2016+ |
SOP |
3000 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
詢價 | ||
ST |
2020+ |
DIP |
80000 |
只做自己庫存,全新原裝進口正品假一賠百,可開13%增 |
詢價 | ||
JAPAN |
24+ |
DIP16 |
161802 |
明嘉萊只做原裝正品現(xiàn)貨 |
詢價 | ||
M |
23+ |
SOP16 |
20000 |
原廠原裝正品現(xiàn)貨 |
詢價 | ||
RENESAS |
21+ |
原廠原裝 |
6603 |
原裝現(xiàn)貨假一賠十 |
詢價 | ||
SIGN |
23+ |
NA |
9856 |
原裝正品,假一罰百! |
詢價 | ||
TI |
22+23+ |
24362 |
絕對原裝正品全新進口深圳現(xiàn)貨 |
詢價 | |||
MOT |
589220 |
16余年資質(zhì) 絕對原盒原盤 更多數(shù)量 |
詢價 | ||||
NS |
23+ |
SOP16 |
3200 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售 |
詢價 |
