74F245 Datasheet | Fairchild Semiconductor

Description The 74F245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 24 m A at the A Ports and 64 m A 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 s Non-inverting buffers s Bidirectional data path s A outputs sink 24 m A s B outputs sink 64 m A Ordering Code: Order Number 74F245SC 74F245SJ 74F245MSA 74F245MTC 74F245PC Package Number M20B M20D MSA20 MTC20 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 Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm 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 Symbols Connection Diagram IEEE/IEC © 1999 Fairchild Semiconductor Corporation DS009503.prf .fairchildsemi. Unit Loading/Fan Out U.L. Pin Names OE T/R A0- A7 Description HIGH/LOW Output Enable Input (Active LOW) Transmit/Receive Input Side A Inputs or 3-STATE Outputs B0- B7 Side B Inputs or 3-STATE Outputs 1.0/2.0 1.0/2.0 3.5/1.083 150/40(38.3) 3.5/1.083 Input IIH/IIL Output IOH/IOL 20 µA/- 1.2 m A 20 µA/- 1.2 m A 70 µA/- 0.65 m A - 3 m A/24 m A (20 m A) 70 µA/- 0.65 m A 600/106.6(80) - 12 m A/64 m A (48 m A) Truth Table Inputs Output OE L L H H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial T/R L H X Bus B Data to Bus A Bus A Data to Bus B High Z State .fairchildsemi. Absolute Maximum Ratings(Note...