0
SN74ALVCH245
  • SN74ALVCH245
  • SN74ALVCH245
  • SN74ALVCH245

SN74ALVCH245

ACTIVE

Octal Bus Transceiver With 3-State Outputs

Texas Instruments SN74ALVCH245 Product Info

1 April 2026 0

Parameters

Supply voltage (min) (V)

1.65

Supply voltage (max) (V)

3.6

Number of channels

8

IOL (max) (mA)

24

IOH (max) (mA)

-24

Input type

LVTTL

Output type

LVTTL

Features

Balanced outputs, Bus-hold, Ultra high speed (tpd <5ns)

Technology family

ALVC

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Package

SOIC (DW)-20-131.84 mm² 12.8 x 10.3

Features

  • Operates From 1.65 V to 3.6 V
  • Max tpd of 3.4 ns at 3.3 V
  • ±24-mA Output Drive at 3.3 V
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

  • Operates From 1.65 V to 3.6 V
  • Max tpd of 3.4 ns at 3.3 V
  • ±24-mA Output Drive at 3.3 V
  • Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II

Description

This octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.

The SN74ALVCH245 is designed for asynchronous communication between data buses. The device transmits data 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 the buses are effectively 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.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.

This octal bus transceiver is designed for 1.65-V to 3.6-V VCC operation.

The SN74ALVCH245 is designed for asynchronous communication between data buses. The device transmits data 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 the buses are effectively 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.

Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors with the bus-hold circuitry is not recommended.