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參數(shù)資料
| 型號： | 933669970652 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 編、解碼器及復用、解復用 |
| 英文描述： | HCT SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDIP16 |
| 封裝： | SOT-38-1, DIP-16 |
| 文件頁數(shù)： | 10/11頁 |
| 文件大小： | 136K |
| 代理商： | 933669970652 |
Philips Semiconductors - PIP - 74HC/HCT157; Quad 2-input multiplexer
Product Information
74HC/HCT157;
Quad 2-input
multiplexer
Information as of 2003-04-22
Stay informed
Download datasheet
Block diagram
topGeneral description
The 74HC/HCT157 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL
(LSTTL). They are specified in compliance with JEDEC standard no. 7A.
The 74HC/HCT157 are quad 2-input multiplexers which select 4 bits of data from two sources under the control of a
common data select input (S). The four outputs present the selected data in the true (non-inverted) form. The enable
input (E) is active LOW. When E is HIGH, all of the outputs (1Y to 4Y) are forced LOW regardless of all other
input conditions.
Moving the data from two groups of registers to four common output buses is a common use of the '157'. The state
of the common data select input (S) determines the particular register from which the data comes. It can also be used
as function generator.
The device is useful for implementing highly irregular logic by generating any four of the 16 different functions of
two variables with one variable common.
The '157' is the logic implementation of a 4-pole, 2-position switch, where the position of the switch is determined
by the logic levels applied to S.
The logic equations are:
1Y = E.(1l1.S + 1l0.S)
2Y = E.(2l1.S + 2l00.S)
3Y = E.(3l1.S + 3l0.S)
4Y = E.(4l1.S + 4l0.S)
The '157' is identical to the '158' but has non-inverting (true) outputs.
topFeatures
q
Non-inverting data path
q
Output capability: standard
q
ICC category: MSI
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| 933713750652 | HCT SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16 |
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相關(guān)代理商/技術(shù)參數(shù) |
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| 9336CMG | 制造商:Apex Tool Group 功能描述:6 IN. DIAGONAL CUTTING S J PLIERS W/CO-MOLDED GRIPS, LASER HARDENED EDGES, CDD |
| 9336CVN | 制造商:Apex Tool Group 功能描述:6 IN. DIAGONAL CUTTING SOLID JOINT PLIERS, CUSHION GRIP, CARDED |
| 9336N | 制造商:Apex Tool Group 功能描述:6 IN. DIAGONAL CUTTING, GENERAL PURPOSE SOLID JOINT PLIERS |
| 9336-RED | 制造商: 功能描述: 制造商:undefined 功能描述: |
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