SN74HCT244 Octal Buffers And Line Drivers With 3-State Outputs | TI.com

SN74HCT244
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Octal Buffers And Line Drivers With 3-State Outputs

 

Description

These octal buffers and line drivers are designed specifically to improve both the performance and density of 3-state memory address drivers, clockdrivers, and bus-oriented receivers and transmitters. The SNx4HCT244 devices are organized as two 4-bit buffers or drivers with separate output-enable (OE) inputs. When OE is low, the device passes noninverted data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.

Features

  • Operating Voltage Range of 4.5 V to 5.5 V
  • High-Current Outputs Drive up to 15 LSTTL Loads
  • Low Power Consumption: 80-µA Maximum ICC
  • Typical tpd = 13 ns
  • ±6-mA Output Drive at 5 V
  • Low Input Current of 1 µA Maximum
  • Inputs Are TTL-Voltage Compatible
  • 3-State Outputs Drive Bus Lines and Buffer Memory Address Registers

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
SN74HCT244 Order now HCT     4.5     5.5     8     6     -6     80     TTL-Compatible CMOS     3-State     Balanced outputs
Very high speed (tpd 5-10ns)
Input clamp diode    
50     Catalog     -40 to 85     PDIP | 20
SOIC | 20
SO | 20
SSOP | 20
TSSOP | 20    
SN54HCT244 Samples not available HCT     4.5     5.5     8     6     -6     80     TTL-Compatible CMOS     3-State     Balanced outputs
Very high speed (tpd 5-10ns)    
50     Military     -55 to 125     CDIP | 20
LCCC | 20    
SN74HCT244-EP Order now HCT     4.5     5.5     8     6     -6     80     TTL-Compatible CMOS     3-State     Balanced outputs
Very high speed (tpd 5-10ns)    
50     HiRel Enhanced Product     -40 to 125     TSSOP | 20    
SN74HCT244-Q1 Order now HCT     4.5     5.5     8     6     -6     80     TTL-Compatible CMOS     3-State     Balanced outputs
Very high speed (tpd 5-10ns)
Input clamp diode    
50     Automotive     -40 to 125     TSSOP | 20