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参数资料
| 型号： | SN74LVC138APW |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 编、解码器及复用、解复用 |
| 英文描述： | LVC/LCX/Z SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| 封装： | GREEN, PLASTIC, TSSOP-16 |
| 文件页数： | 12/29页 |
| 文件大小： | 1083K |
| 代理商： | SN74LVC138APW |
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DESCRIPTION/ORDERING INFORMATION (CONTINUED)
GQN OR ZQN PACKAGE
(TOP VIEW)
1
2
3
4
A
B
C
D
E
SN54LVC138A, SN74LVC138A
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SCAS291T – MARCH 1993 – REVISED JULY 2005
The 'LVC138A devices are designed for high-performance memory-decoding or data-routing applications
requiring very short propagation delay times. In high-performance memory systems, these decoders minimize the
effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, delay times
of these decoders and the enable time of the memory usually are less than the typical access time of the
memory. This means that the effective system delay introduced by the decoders is negligible.
The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two
active-low enable inputs and one active-high enable input 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.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
TERMINAL ASSIGNMENTS
1
2
3
4
A
B
A
VCC
Y0
B
C
NC(1)
Y1
C
G2B
G2A
Y3
Y2
D
G1
NC(1)
Y4
E
GND
Y7
Y6
Y5
(1)
NC - No internal connection
SDFGDFGDFG
FUNCTION TABLE
ENABLE INPUTS
SELECT INPUTS
OUTPUTS
G1
G2A
G2B
C
B
A
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
H
X
H
X
H
X
H
L
X
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LVC138APW | 制造商:Texas Instruments 功能描述:IC DECODER/DEMUX 74LVC138 |
| SN74LVC138APW | 制造商:Texas Instruments 功能描述:Decoder/Demultiplexer Logic IC 制造商:Texas Instruments 功能描述:IC, 3 TO 8 LINE DECODER/DMUX, TSSOP-16 |
| SN74LVC138APWE4 | 功能描述:编码器、解码器、复用器和解复用器 3-Line to 8-Line Decoder/Demltplxr RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LVC138APWG4 | 功能描述:编码器、解码器、复用器和解复用器 3-Line to 8-Line Decoder/Demltplxr RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
| SN74LVC138APWR | 功能描述:编码器、解码器、复用器和解复用器 Line Decoder RoHS:否 制造商:Micrel 产品:Multiplexers 逻辑系列:CMOS 位数: 线路数量（输入/输出）:2 / 12 传播延迟时间:350 ps, 400 ps 电源电压-最大:2.625 V, 3.6 V 电源电压-最小:2.375 V, 3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-44 封装:Tray |
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