© 1999 Fairchild Semiconductor Corporation

DS010914

www.fairchildsemi.com

April 1991

Revised August 1999

74FR9245

9-Bit Bidirectional Transceiver with 3-STATE Outputs

General Description

The 74FR9245 contains nine non-inverting bidirectional

buffers with 3-STATE outputs and is intended for bus-ori-

ented applications. Current sinking capability is 64 mA on

both the A and B Ports. The Transmit/Receive (T/R) input

determines the direction of data flow through the bidirec-

tional transceiver. Transmit (active-HIGH) enables data

from A Ports to B Ports; Receive (active-LOW) enables

data from B Ports to A Ports. The Output Enable input,

when HIGH, disables both A and B Ports by placing them

in a High Z condition.

Features

s Non-inverting buffers

s Bidirectional data path

s A and B output sink capability of 64 mA, source

capability of 15 mA

s Guaranteed pin-to-pin skew, multiple output switching

and 250 pf delay

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbol

Connection Diagram

Order Number

Package Number

Package Description

74FR9245SC

M24B

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

74FR9245MSA

MSA24

24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide

74FR9245SPC

N24C

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 0.300 Wide