These octal bus transceivers are designed for asynchronous communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the logic level at the direction-control (DIR) input. The output enable (OE) input can be used to disable the device so the buses are effectively isolated.
The SN74F245 is available in TI's shrink small-outline package (DB), which provides the same I/O pin count and functionality of standard small-outline packages in less than half the printed-circuit-board area.
The SN54F245 is characterized for operation over the full military temperature range of 55 to 125. The SN74F245 is characterized for operation from 0 to 70.
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• 3-State Outputs Drive Bus Lines Directly• Package Options Include Plastic Small-Outline (SOIC) and Shrink Small-Outline (SSOP) Packages, Ceramic Chip Carriers, and Plastic and Ceramic DIPs
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Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.5 V to 7 V
Input voltage range, VI (except I/O ports) (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.2 V to 7 V
Input current range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 mA to 5 mA
Voltage range applied to any output in the disabled or power-off state . . . . . . . . . . . . . . 0.5 V to 5.5 V
Voltage range applied to any output in the high state . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.5 V to VCC
Current into any output in the low state: SN54F245 (A1 thru A8) . . . . . . . . . . . . . . . . . . . . . . . . . . 40 mA
SN54F245 (B1 thru B8) . . . . . . . . . . . . . . . . . . . . . . . . . . .96 mA
SN74F245 (A1 thru A8) . . . . . . . . . . . . . . . . . . . . . . . . . . .48 mA
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