74FR245

74FR245 Octal Bidirectional Transceiver with 3-STATE Outputs August 1990 Revised August 1999 74FR245 Octal Bidirectional Transceiver with 3-STATE Outputs General Description The 74FR245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented 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 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 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 Ordering Code: Order Number 74FR245SC 74FR245SJ 74FR245PC Package Number M20B M20D N20A Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Logic Symbol Connection Diagram Pin Descriptions Pin Names OE T/R A0–A7 B0–B7 Description Output Enable Input (Active-LOW) Transmit/Receive Input Side A Inputs or 3-STATE Outputs Side B Inputs or 3-STATE Outputs ...