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74FR2245

Fairchild
Part Number 74FR2245
Manufacturer Fairchild
Description Octal Bidirectional Transceiver
Published May 28, 2005
Detailed Description 74FR2245 Octal Bidirectional Transceiver with 3-STATE Outputs April 1995 Revised August 1999 74FR2245 Octal Bidirectio...
Datasheet PDF File 74FR2245 PDF File

74FR2245
74FR2245

Overview
74FR2245 Octal Bidirectional Transceiver with 3-STATE Outputs April 1995 Revised August 1999 74FR2245 Octal Bidirectional Transceiver with 3-STATE Outputs General Description The 74FR2245 contains eight non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented applications.
Current sinking capability is 64 mA on the A Port.
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 Guaranteed pin-to-pin skew s 25Ω series resistors in B outputs eliminate the need for external resistors s 3-STATE outputs drive bus lines or buffer memory address resistors Ordering Code: Order Number 74FR2245SC Package Number M20B Package Description 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.
300 Wide Devices also available in Tape and Reel.
Specify by appending the suffix letter “X” letter 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 Truth Table Inputs OE L L H H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Output T/R L H X Bus B Data to Bus A Bus A Data to Bus B High Z State © 1999 Fairchild Semiconductor Corporation DS012114 www.
fairchildsemi.
com 74FR2245 Logic Diagram www.
fairchildsemi.
com 2 74FR2245 Absolute Maximum Ratings(Note 1) Storage Temperature Ambient Temperature under Bias Junction Temperature under Bias VCC Pin Potential to Ground Pin Input Voltage (Note 2) Input Current (Note 2) Voltage Applied to Output in HIGH State (with VCC = 0V) Standard Output 3-STATE Output Current ...


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