April 1988
Revised April 1999
7
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© 1999 Fairchild Semiconductor Corporation DS009503.prf www.fairchildsemi.com
74F245
Octal Bidirectional Transceiver with 3-STATE Outputs
General Description
The 74F245 contains eight non-inverting bidirectional buff-
ers with 3-STATE outputs and is intended for bus-oriented
applications. Current sinking capability is 24 mA at the A
Ports and 64 mA at the B Ports. The Transmit/Receive
(T/R) input determines the direction of data flow through
the bidirectional 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
a73 Non-inverting buffers
a73 Bidirectional data path
a73 A outputs sink 24 mA
a73 B outputs sink 64 mA

Ordering Code:
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Logic Symbols
IEEE/IEC
Connection Diagram
Order Number Package Number Package Description
74F245SC M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide
74F245SJ M20D 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F245MSA MSA20 20-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide
74F245MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74F245PC N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide