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Número de pieza | DM74S299 | |
Descripción | 3-STATE 8-Bit Universal Shift/Storage Register | |
Fabricantes | Fairchild Semiconductor | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de DM74S299 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
No Preview Available ! August 1986
Revised May 2000
DM74S299
3-STATE 8-Bit Universal Shift/Storage Register
General Description
This Schottky TTL eight-bit universal register features mul-
tiplexed inputs/outputs to achieve full eight bit data han-
dling in a single 20-pin package. Two function-select inputs
and two output-control inputs can be used to choose the
modes of operation listed in the function table.
Synchronous parallel loading is accomplished by taking
both function-select lines, S0 and S1, HIGH. This places
the 3-STATE outputs in a high-impedance state, which per-
mits data that is applied on the input/output lines to be
clocked into the register. Reading out of the register can be
accomplished while the outputs are enabled in any mode.
A direct overriding input is provided to clear the register
whether the outputs are ENABLED or OFF.
Features
s Multiplexed inputs/outputs provide improved bit density
s Four modes of operation:
Hold (Store) Shift Left
Shift Right
Load Data
s 3-STATE outputs drive bus lines directly
s Can be cascaded for N-bit word lengths
s Operates with outputs enabled or at high Z
s Guaranteed shift (clock) frequency 50 MHz
s Typical power dissipation 700 mW
Ordering Code:
Order Number Package Number
Package Description
DM74S299N
N20A
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Connection Diagram
© 2000 Fairchild Semiconductor Corporation DS006485
www.fairchildsemi.com
1 page Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N20A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
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5 Page |
Páginas | Total 5 Páginas | |
PDF Descargar | [ Datasheet DM74S299.PDF ] |
Número de pieza | Descripción | Fabricantes |
DM74S299 | 3-STATE 8-Bit Universal Shift/Storage Register | Fairchild Semiconductor |
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