SN74AHCT245DWR OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS led driver circuit

SN74AHCT245DWR OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS led driver circuit

► Inputs Are TTL-Voltage Compatible

►​Latch-Up Performance Exceeds 250 mA Per JESD 17

► ESD Protection Exceeds JESD 22

− 2000-V Human-Body Model (A114-A)

− 200-V Machine Model (A115-A)

− 1000-V Charged-Device Model (C101)

Description/ordering information These octal bus transceivers are designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The ’AHCT245 devices allow 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 effectively are isolated. To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

absolute maximum ratings over operating free-air temperature range

(unless otherwise noted)†

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