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PDF 74LS194 Data sheet ( Hoja de datos )
| Número de pieza | 74LS194 | |
| Descripción | 4-Bit Bidirectional Universal Shift Register | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 74LS194 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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August 1986
Revised March 2000
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-con-
trol inputs, and a direct overriding clear line. The register
has four distinct modes of operation, namely:
Parallel (broadside) load
Shift right (in the direction QA toward QD)
Shift left (in the direction QD toward QA)
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 transi-
tion of the clock input. During loading, serial data flow is
inhibited.
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
synchronously 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
s Parallel inputs and outputs
s Four operating modes:
Synchronous parallel load
Right shift
Left shift
Do nothing
s Positive edge-triggered clocking
s Direct overriding clear
Ordering Code:
Order Number Package Number
Package Description
DM74LS194AM
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
DM74LS194AN
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
© 2000 Fairchild Semiconductor Corporation DS006407
www.fairchildsemi.com
1 page  
Physical Dimensions inches (millimeters) unless otherwise noted
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow
Package Number M16A
5 www.fairchildsemi.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet 74LS194.PDF ] | |
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