74LVQ138SJX datasheet(2/6 Pages) FAIRCHILD

tên linh kiện	74LVQ138SJX

Giải thích chi tiết về linh kiện	Low Voltage 1-of-8 Decoder/Demultiplexer

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Functional Description

The LVQ138 high-speed 1-of-8 decoder/demultiplexer

accepts three binary weighted inputs (A0, A1, A2) and,

when enabled, provides eight mutually exclusive active-

LOW outputs (O0–O7). The LVQ138 features three Enable

inputs, two active-LOW (E1, E2) and one active-HIGH (E3).

All outputs will be HIGH unless E1 and E2 are LOW and E3

is HIGH. This multiple enable function allows easy parallel

expansion of the device to a 1-of-32 (5 lines to 32 lines)

decoder with just four LVQ138 devices and one inverter

(see Figure 1). The LVQ138 can be used as an 8-output

demultiplexer by using one of the active LOW Enable

inputs as the data input and the other Enable inputs as

strobes. The Enable inputs which are not used must be

permanently tied to their appropriate active-HIGH or active-

LOW state.

Truth Table

H

= HIGH Voltage Level

L

= LOW Voltage Level

X

= Immaterial

Logic Diagram

Please note that this diagram is provided only for the understanding of logic

operations and should not be used to estimate propagation delays.

FIGURE 1. Expansion to 1-of-32 Decoding

Inputs

Outputs

E1 E2 E3 A0 A1 A2 O0 O1 O2 O3 O4 O5 O6 O7

H

X

XX

X

HH

HHH

X

H

XX

X

HH

HHH

X

L

X

HH

HHH

L

H

L

H

HHH

L

H

L

H

L

HHH

L

H

L

H

L

HH

L

H

HHH

L

H

L

HH

H

L

H

HHH

L

H

L

HHH

HH

L

HHH

L

H

L

HHH

L

H

L

H

L

H

HHH

H

L

H

L

H

HHH

HH

L

Số phần tương tự - 74LVQ138SJX

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Fairchild Semiconductor	74LVQ138SJX	98Kb / 8P	Low Voltage 1-of-8 Decoder/Demultiplexer

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Mô tả tương tự - 74LVQ138SJX

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
Fairchild Semiconductor	74LVQ138	98Kb / 8P	Low Voltage 1-of-8 Decoder/Demultiplexer
Fairchild Semiconductor	74LVX138	79Kb / 7P	Low Voltage 1-of-8 Decoder/Demultiplexer
ON Semiconductor	74LVX157	183Kb / 9P	Low Voltage 1-of-8 Decoder/Demultiplexer Revised October 2003
	74LCX138	513Kb / 14P	Low Voltage 1-of-8 Decoder/Demultiplexer Revised December 2013
	74LVX138	185Kb / 9P	Low Voltage 1-of-8 Decoder/Demultiplexer Revised October 2003
Integral Corp.	IN74HCT138A	144Kb / 5P	1-OF-8 DECODER/DEMULTIPLEXER
Fairchild Semiconductor	74AC138	100Kb / 9P	1-of-8 Decoder/Demultiplexer
ON Semiconductor	74AC138	209Kb / 11P	1-of-8 Decoder/Demultiplexer Revised July 2003
ON Semiconductor	MC74HC238A	142Kb / 9P	1-of-8 Decoder/ Demultiplexer June, 2013 ??Rev. 4
Hitachi Semiconductor	HD74AC138	66Kb / 11P	1-of-8 Decoder/Demultiplexer

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74LVQ138SJX bảng dữ liệu(PDF) 2 Page - Fairchild Semiconductor

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Số phần tương tự - 74LVQ138SJX

Mô tả tương tự - 74LVQ138SJX

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