SN74ALVCH244 Octal Buffer/Driver With 3-State Outputs | TI.com

SN74ALVCH244
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Octal Buffer/Driver With 3-State Outputs

Octal Buffer/Driver With 3-State Outputs - SN74ALVCH244
Datasheet
 

Description

This octal buffer/line driver is designed for 1.65-V to 3.6-V VCC operation.

The SN74ALVCH244 is organized as two 4-bit line drivers with separate output-enable (OE)\ inputs. When OE\ is low, the device passes data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.

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 2.8 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 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)

Parametrics

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Part number Order Technology Family VCC (Min) (V) VCC (Max) (V) Channels (#) IOL (Max) (mA) IOH (Max) (mA) ICC (uA) Input type Output type Features Data rate (Mbps) Rating Operating temperature range (C) Package Group
SN74ALVCH244 Order now ALVC     1.65     3.6     8     24     -24     10     Standard CMOS     3-State     Balanced outputs
Very high speed (tpd 5-10ns)
Over-voltage tolerant inputs
Bus-hold    
200     Catalog     -40 to 85     SOIC | 20
TSSOP | 20
TVSOP | 20