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DM74ALS564A

Fairchild Semiconductor
Part Number DM74ALS564A
Manufacturer Fairchild Semiconductor
Description Octal D-Type Edge-Triggered Flip-Flop with
Published Apr 1, 2005
Detailed Description DM74ALS564A Octal D-Type Edge-Triggered Flip-Flop with September 1986 Revised February 2000 DM74ALS564A Octal D-Type E...
Datasheet PDF File DM74ALS564A PDF File

DM74ALS564A
DM74ALS564A

Overview
DM74ALS564A Octal D-Type Edge-Triggered Flip-Flop with September 1986 Revised February 2000 DM74ALS564A Octal D-Type Edge-Triggered Flip-Flop with 3-STATE Outputs General Description These 8-bit registers feature totem-pole 3-STATE outputs designed specifically for driving highly-capacitive or relatively 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 interface or pull-up components.
They are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The eight flip-flops of the DM74ALS564A are edge-triggered inverting D-type flip-flops.
On the positive transition of the clock, the Q outputs will be set to the complement of the logic states that were set up at the D inputs.
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-impedance state the outputs neither load nor drive the bus lines significantly.
The output control does not affect the internal operation of the flip-flops.
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 temperature 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 DM74ALS564AWM DM74ALS564AN Package Number M20B N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.
300 Wide 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 ...


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