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DM74LS139M中文資料仙童半導體數(shù)據(jù)手冊PDF規(guī)格書
DM74LS139M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：
DM74LS139M
- 功能描述：
編碼器、解碼器、復用器和解復用器 Dl 2-to-4 Ln Dec/Dem
- RoHS：
否
- 制造商：
Micrel
- 產(chǎn)品：
Multiplexers
- 邏輯系列：
CMOS
- 線路數(shù)量（輸入/輸出）：
2/12
- 傳播延遲時間：
350 ps, 400 ps
- 電源電壓-最大：
2.625 V, 3.6 V
- 電源電壓-最?。?/span>
2.375 V, 3 V
- 最大工作溫度：
+ 85 C
- 安裝風格：
SMD/SMT
- 封裝/箱體：
QFN-44
- 封裝：
Tray
| 供應商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
NS/國半 |
24+ |
NA/ |
27 |
優(yōu)勢代理渠道,原裝正品,可全系列訂貨開增值稅票 |
詢價 | ||
FAIRCHILD/仙童 |
25+ |
SOP16 |
65428 |
百分百原裝現(xiàn)貨 實單必成 |
詢價 | ||
FAI |
01+ |
SOP3.9 |
500 |
一級代理,專注軍工、汽車、醫(yī)療、工業(yè)、新能源、電力 |
詢價 | ||
FSC |
2015+ |
SOP |
19889 |
一級代理原裝現(xiàn)貨,特價熱賣! |
詢價 | ||
NS |
21+ |
3.9MM |
169 |
原裝現(xiàn)貨假一賠十 |
詢價 | ||
NATIONAL |
23+ |
SOIC |
65480 |
詢價 | |||
NSC |
23+ |
原裝原封 |
8888 |
專做原裝正品,假一罰百! |
詢價 | ||
NS |
25+23+ |
3.9MM |
27656 |
絕對原裝正品全新進口深圳現(xiàn)貨 |
詢價 | ||
FAIRCHILD/仙童 |
22+ |
SOP16 |
8000 |
原裝正品支持實單 |
詢價 | ||
FAIRCHILD |
23+ |
SOP16 |
3200 |
全新原裝、誠信經(jīng)營、公司現(xiàn)貨銷售 |
詢價 |
