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參數(shù)資料
| 型號(hào)： | SN74S138D |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | 編、解碼器及復(fù)用、解復(fù)用 |
| 英文描述： | S SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| 文件頁(yè)數(shù)： | 11/11頁(yè) |
| 文件大?。?/td> | 336K |
| 代理商： | SN74S138D |
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SN54S138, 3-Line To 8-Line Decoders/Demultiplexers
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Parameter Name SN54S138
Voltage Nodes (V) 5
These Schottky-clamped TTL MSI 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 employed with high-speed memories utilizing a fast enable circuit,
the delay times of these decoders and the enable time of the memory are usually less than the
typical access time of the memory. This means that the effective system delay introduced by
the Schottky-clamped system decoder is negligible.
The 'LS138, SN54S138, and SN74S138A decode one of eight lines dependent on the
conditions at the three binary select inputs and the three enable inputs. Two active-low and
one active-high enable inputs reduce the need for external gates or inverters when expanding.
A 24-line decoder can be implemented without external inverters and a 32-line decoder
requires only one inverter. An enable input can be used as a data input for demultiplexing
applications.
All of these decoder/demultiplexers feature fully buffered inputs, each of which represents
only one normalized load to its driving circuit. All inputs are clamped with high-performance
Schottky diodes to suppress line-ringing and to simplify system design.
The SN54LS138 and SN54S138 are characterized for operation over the full military
temperature range of -55°C to 125°C. The SN74LS138 and SN74S138A are characterized
for operation from 0°C to 70°C.
相關(guān)PDF資料 |
PDF描述 |
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| SN74S151DR | S SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16 |
| SN74S151NSRG4 | S SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, PDSO16 |
| SN74S153DR | S SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
| SN74S153N | S SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDIP16 |
| SNJ54S153J | S SERIES, DUAL 4 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDIP16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74S138N | 制造商:TI 功能描述:74S138 TI PULL N5F3B 制造商:Texas Instruments 功能描述: |
| SN74S139AD | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 2 to 4 RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74S139ADE4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 2 to 4-line Decdr/Demltplxer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74S139ADG4 | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 2Line to 4Line Decodr Demultiplexer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SN74S139AN | 功能描述:編碼器、解碼器、復(fù)用器和解復(fù)用器 Dual 2 to 4-line Decdr/Demltplxer RoHS:否 制造商:Micrel 產(chǎn)品:Multiplexers 邏輯系列:CMOS 位數(shù): 線路數(shù)量（輸入/輸出）:2 / 12 傳播延遲時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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