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PDF DM54LS299 Data sheet ( Hoja de datos )
| Número de pieza | DM54LS299 | |
| Descripción | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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June 1992
DM54LS299 DM74LS299
8-Input Universal Shift Storage Register
with Common Parallel I O Pins
General Description
The ’LS299 is an 8-bit universal shift storage register with
TRI-STATE outputs Four modes of operation are possi-
ble hold (store) shift left shift right and load data The par-
allel load inputs and flip-flop outputs are multiplexed to re-
duce the total number of package pins Separate outputs
are provided for flip-flops Q0 and Q7 to allow easy cascad-
ing A separate active LOW Master Reset is used to reset
the register
Features
Y Common I O for reduced pin count
Y Four operation modes shift left shift right load and
store
Y Separate shift right serial input and shift left serial input
for easy cascading
Y TRI-STATE outputs for bus oriented applications
Connection Diagram
Dual-In-Line Package
TL F 9827 – 1
Order Number DM54LS299E DM54LS299J DM54LS299W
DM74LS299WM or DM74LS299N
See NS Package Number E20A J20A M20B N20A or W20A
Pin Names
CP
DS0
DS7
S0 S1
MR
OE1 OE2
I O0–I O7
Q0 – Q7
Description
Clock Pulse Input (Active Rising Edge)
Serial Data Input for Right Shift
Serial Data Input for Left Shift
Mode Select Inputs
Asynchronous Master Reset Input
(Active LOW)
TRI-STATE Output Enable Inputs
(Active LOW)
Parallel Data Inputs or TRI-STATE
Parallel Outputs
Serial Outputs
TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9827
RRD-B30M115 Printed in U S A
1 page  
Logic Diagram
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5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet DM54LS299.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DM54LS299 | 8-Input Universal Shift/Storage Register with Common Parallel I/O Pins | National Semiconductor |
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