3-State Buffer-Type Inverting Outputs Drive

Bus Lines Directly

Bus-Structured Pinout

Buffered Control Inputs

Package Options Include Plastic

Small-Outline (DW) Packages, Ceramic

Chip Carriers (FK), Standard Plastic (N) and

Ceramic (J) 300-mil DIPs, and Ceramic Flat

W) Packages

description

These octal D-type edge-triggered flip-flops

feature inverting 3-state outputs designed

specifically for bus driving. They are particularly

suitable for implementing buffer registers, I/O

ports, bidirectional bus drivers, and working

registers.

The eight flip-flops enter data on the low-to-high

transition of the clock (CLK) input.

The output-enable (OE) input does not affect

internal operations of the flip-flops. Old data can

be retained or new data can be entered while the

outputs are in the high-impedance state.

The SN54ALS564B is characterized for operation

over the full military temperature range of –55°C

to 125°C. The SN74ALS564B is characterized for

operation from 0°C to 70°C.