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PDF DM74ALS563A Data sheet ( Hoja de datos )
| Número de pieza | DM74ALS563A | |
| Descripción | Octal D-Type Transparent Latch with 3-STATE Output | |
| Fabricantes | Fairchild Semiconductor | |
| Logotipo |  |
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October 1986
Revised February 2000
DM74ALS563A
Octal D-Type Transparent Latch with 3-STATE Output
General Description
These 8-bit registers feature totem-pole 3-STATE outputs
designed specifically for driving highly-capacitive or rela-
tively low-impedance loads. The high-impedance state and
increased high-logic-level drive provide these registers with
the capability of being connected directly to and driving the
bus lines in a bus-organized system without need for inter-
face or pull-up components. They are particularly attractive
for implementing buffer registers, I/O ports, bidirectional
bus drivers, and working registers.
The eight inverting latches of the DM74ALS563A are trans-
parent D-type latches. While the enable (G) is HIGH the Q
outputs will follow the data (D) inputs. When the enable is
taken LOW the output will be latched at the complement of
the level of the data that was set up.
A buffered output control input can be used to place the
eight outputs in either a normal logic state (HIGH or LOW
logic levels) or a high-impedance state. In the high-imped-
ance state the outputs neither load nor drive the bus lines
significantly.
The output control does not affect the internal operation of
the latches. That is, the old data can be retained or new
data can be entered even while the outputs are OFF.
Features
s Switching specifications at 50 pF
s Switching specifications guaranteed over full tempera-
ture and VCC range
s Advanced oxide-isolated, ion-implanted Schottky TTL
process
s 3-STATE buffer-type outputs drive bus lines directly
Ordering Code:
Order Number Package Number
Package Description
DM74ALS563AWM
M20B
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
DM74ALS563AN
N20A
20-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 DS009162
www.fairchildsemi.com
1 page  
Physical Dimensions inches (millimeters) unless otherwise noted
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
Package Number M20B
5 www.fairchildsemi.com
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet DM74ALS563A.PDF ] | |
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