74FR9245
74FR9245 is 9-Bit Bidirectional Transceiver manufactured by Fairchild Semiconductor.
Description
The 74FR9245 contains nine non-inverting bidirectional buffers with 3-STATE outputs and is intended for bus-oriented applications. Current sinking capability is 64 m A 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 m A, source capability of 15 m A s Guaranteed pin-to-pin skew, multiple output switching and 250 pf delay
Ordering Code:
Order Number 74FR9245SC 74FR9245MSA 74FR9245SPC Package Number M24B MSA24 N24C Package Description
24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide 24-Lead Shrink Small Outline Package (SSOP), EIAJ TYPE II, 5.3mm Wide 24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-100, 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
© 1999 Fairchild Semiconductor Corporation
DS010914
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Pin Descriptions
Pin Names OE T/R A0- A8 B0- B8 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
Logic Diagram
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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 Applied to Output in LOW State...