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參數(shù)資料
| 型號： | 74LS194A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 4-Bit Bidirectional Universal Shift Register |
| 中文描述： | 4位雙向通用移位寄存器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 166K |
| 代理商： | 74LS194A |
TL/F/6407
5
June 1989
54LS194A/DM74LS194A 4-Bit
Bidirectional Universal Shift Register
General Description
This bidirectional shift register is designed to incorporate
virtually all of the features a system designer may want in a
shift register; they feature parallel inputs, parallel outputs,
right-shift and left-shift serial inputs, operating-mode-control
inputs, and a direct overriding clear line. The register has
four distinct modes of operation, namely:
Parallel (broadside) load
Shift right (in the direction Q
A
toward Q
D
)
Shift left (in the direction Q
D
toward Q
A
)
Inhibit clock (do nothing)
Synchronous parallel loading is accomplished by applying
the four bits of data and taking both mode control inputs, S0
and S1, high. The data is loaded into the associated flip-
flops and appear at the outputs after the positive transition
of the clock input. During loading, serial data flow is inhibit-
ed.
Shift right is accomplished synchronously with the rising
edge of the clock pulse when S0 is high and S1 is low.
Serial data for this mode is entered at the shift-right data
input. When S0 is low and S1 is high, data shifts left syn-
chronously and new data is entered at the shift-left serial
input.
Clocking of the flip-flop is inhibited when both mode control
inputs are low.
Features
Y
Parallel inputs and outputs
Y
Four operating modes:
Synchronous parallel load
Right shift
Left shift
Do nothing
Y
Positive edge-triggered clocking
Y
Direct overriding clear
Connection Diagram
Dual-In-Line Package
TL/F/6407–1
Order Number 54LS194ADMQB, 54LS194AFMQB,
54LS194ALMQB, DM74LS194AM or DM74LS194AN
See NS Package Number E20A, J16A, M16A, N16E or W16A
C
1995 National Semiconductor Corporation
RRD-B30M105/Printed in U. S. A.
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| 74LS195 | LOW POWER SCHOTTKY |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 74LS194ADC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 74LS194AN | 制造商:NXP Semiconductors 功能描述:Shift Register, 16 Pin, Plastic, DIP 制造商:Texas Instruments 功能描述:Shift Register, 16 Pin, Plastic, DIP |
| 74LS194APC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 74LS194DC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| 74LS194PC | 制造商:Texas Instruments 功能描述: |
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