© 1999 Fairchild Semiconductor Corporation DS009577 www.fairchildsemi.com
April 1988
Revised August 1999
7
4F620
•
74F623

I
nvert
i
ng Octal
B
u
s
T
r
anscei
ver wit
h

3-
ST
A
T
E Output
s
74F620 • 74F623
Inverting Octal Bus Transceiver with 3-STATE Outputs
General Description
These devices are octal bus transceivers designed for
asynchronous two-way data flow between the A and B bus-
ses. Both busses are capable of sinking 64 mA and have 3-
STATE outputs. Dual enable pins (GAB, GBA) allow data
transmission from the A bus to the B bus or from the B bus
to the A bus. The 74F620 is an inverting option of the
74F623.
Features
a73 Designed for asynchronous two-way data flow between
busses
a73 Outputs sink 64 mA
a73 Dual enable inputs control direction of data flow
a73 Guaranteed 4000V minimum ESD protection
a73 74F620 is an inverting option of the 74F623

Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbol Connection Diagram
FAST is a registered trademark of Fairchild Semiconductor Corporation
Order Number Package Number Package Description
74F620PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
74F623SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F623PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide