74F656A Datasheet, PDF (1/14 Pages) NXP Semiconductors – Octal buffer/driver with parity, non-inverting 3-State

74F656A
Octal buffer/driver with parity; non-inverting; 3-state
Rev. 05 — 25 March 2010
Product data sheet
1. General description
The 74F656A is an octal buffer and line driver with parity generation/checking. The
74F656A can be used as memory address driver, clock driver and bus-oriented
transmitter/receiver. The inclusion of parity generation/checking improves PCB density.
2. Features
„ Combines 74F244 and 74F280A functions in one device
„ High impedance NPN base inputs for reduced input current (40 μA in HIGH and LOW
states)
„ I_IL = 20 μA compared to 600 μA in FAST family specification
„ For applications with high output drive and light bus loading
„ Non-inverting
„ 3-state output sink capability I_OL = 64 mA and source I_OH = 15 mA
„ Inputs and outputs on separate sides simplifies board layout
„ Combined functions reduce part count and enhance system performance
„ Industrial temperature range available (−40 °C to +85 °C)
3. Ordering information
Table 1. Ordering information
Type number Package
Temperature range Name
N74F656AD 0 °C to 70 °C
SO24
I74F656AD
−40 °C to +85 °C
Description
plastic small outline package; 24 leads;
body width 7.5 mm
Version
SOT137-1