SN74LV245AT

` Inputs Are TTL-Voltage Compatible
` I_off Supports Partial-Power-Down Mode Operation
` 4.5-V to 5.5-V V<sub>CC</sub> Operation Operation
` Typical t_pd of 3.5 ns at 5 V
` Latch-Up Performance Exceeds 250 mA Per JESD 17
` Typical V_OLP (Output Ground Bounce) <0.8 V at _VCC = 5 V, T_A = 25°C
` ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
1000-V Charged-Device Model (C101)
` Typical V_OHV (Output V_OH Undershoot) >2.3 V at V_CC = 5 V, T_A = 25°C

(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
(2) The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
(3) This value is limited to 5.5 V maximum.
(4) The package thermal impedance is calculated in accordance with JESD 51-7.
(5) The package thermal impedance is calculated in accordance with JESD 51-5.

This octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The SN74LV245AT allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.