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DM74LS139M中文資料仙童半導(dǎo)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.
特性 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(fù)用器和解復(fù)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-最小：
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(yīng)商 | 型號 | 品牌 | 批號 | 封裝 | 庫存 | 備注 | 價格 |
|---|---|---|---|---|---|---|---|
onsemi(安森美) |
24+ |
SOP16 |
907 |
只做原裝,提供一站式配單服務(wù),代工代料。BOM配單 |
詢價 | ||
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 | ||
FSC |
2016+ |
SOP |
1800 |
只做原裝,假一罰十,公司可開17%增值稅發(fā)票! |
詢價 | ||
FAIRCHILD/仙童 |
25+ |
SOP16 |
65428 |
百分百原裝現(xiàn)貨 實單必成 |
詢價 | ||
NS |
23+ |
SOP16 |
6500 |
專注配單,只做原裝進口現(xiàn)貨 |
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 | ||
NAT |
24+/25+ |
430 |
原裝正品現(xiàn)貨庫存價優(yōu) |
詢價 | |||
FSC |
2015+ |
SOP |
19889 |
一級代理原裝現(xiàn)貨,特價熱賣! |
詢價 | ||
NS |
94 |
SOP16 |
7500 |
原裝現(xiàn)貨 |
詢價 | ||
NS |
21+ |
3.9MM |
169 |
原裝現(xiàn)貨假一賠十 |
詢價 |
