SN74ALVCH245 Octal Bus Transceiver With 3-State Outputs | TI.com

SN74ALVCH245
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Octal Bus Transceiver With 3-State Outputs

Octal Bus Transceiver With 3-State Outputs - SN74ALVCH245
Datasheet
 

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.

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

Parametrics

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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Bits (#) Voltage (Nom) (V) F @ nom voltage (Max) (MHz) ICC @ nom voltage (Max) (mA) tpd @ nom Voltage (Max) (ns) IOL (Max) (mA) IOH (Max) (mA) Rating Operating temperature range (C)
SN74ALVCH245 Order now ALVC     1.65     3.6     8     1.8
2.5
2.7
3.3    
100     0.01     6
3.5
3.6
3.4    
24     -24     Catalog     -40 to 85