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參數資料
| 型號： | 74HC137 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 3-to-8 line decoder/demultiplexer with address latches; inverting |
| 中文描述： | 3至8線路解碼器/多路解復用器的地址鎖存器;反相 |
| 文件頁數： | 1/19頁 |
| 文件大?。?/td> | 107K |
| 代理商： | 74HC137 |
1.
General description
The 74HC137 is a high-speed Si-gate CMOS device and is pin compatible with low power
Schottky TTL (LSTTL). The 74HC137 is specified in compliance with JEDEC
standard no. 7A.
The 74HC137 is a 3-to-8 line decoder, demultiplexer with latches at the three address
inputs (An). The 74HC137 essentially combines the 3-to-8 decoder function with a 3-bit
storage latch. When the latch is enabled (LE = LOW), the 74HC137 acts as a 3-to-8 active
LOW decoder. When the latch enable (LE) goes from LOW-to-HIGH, the last data present
at the inputs before this transition, is stored in the latches. Further address changes are
ignored as long as LE remains HIGH.
The output enable input (E1 and E2) controls the state of the outputs independent of the
address inputs or latch operation. All outputs are HIGH unless E1 is LOW and E2 is HIGH.
The 74HC137 is ideally suited for implementing non-overlapping decoders in 3-state
systems and strobed (stored address) applications in bus oriented systems.
2.
Features
I
Combines 3-to-8 decoder with 3-bit latch
I
Multiple input enable for easy expansion or independent controls
I
Active LOW mutually exclusive outputs
I
Low-power dissipation
I
Complies with JEDEC standard no. 7A
I
ESD protection:
N
HBM EIA/JESD22-A114-B exceeds 2000 V
N
MM EIA/JESD22-A115-A exceeds 200 V.
I
Multiple package options
I
Specified from
40
°
C to +80
°
C and from
40
°
C to +125
°
C.
74HC137
3-to-8 line decoder, demultiplexer with address latches;
inverting
Rev. 03 — 11 November 2004
Product data sheet
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| 74HC154 | 4-to-16 line decoder/demultiplexer |
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| PC74HCT7245T | Single 8-bit Bus Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 74HC137_1 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:3-to-8 line decoder/demultiplexer with address latches; inverting |
| 74HC137D | 功能描述:編碼器、解碼器、復用器和解復用器 3-TO-8 DECOD/DEMUX INVERTING RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| 74HC137D,652 | 功能描述:編碼器、解碼器、復用器和解復用器 3-TO-8 DECOD/DEMUX RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| 74HC137D,653 | 功能描述:編碼器、解碼器、復用器和解復用器 3 TO 8 LINE DECODER/DEMUX RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（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 |
| 74HC137D652 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
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