CD54HCT240 High Speed CMOS Logic Inverting Octal Buffer/Line Drivers with 3-State Outputs | TI.com

CD54HCT240 (ACTIVE) High Speed CMOS Logic Inverting Octal Buffer/Line Drivers with 3-State Outputs

 

Description

The ’HC240 and ’HCT240 are inverting three-state buffers having two active-low output enables. The CD74HC241, ’HCT241, ’HC244 and ’HCT244 are non-inverting three-state buffers that differ only in that the 241 has one active-high and one active-low output enable, and the 244 has two active-low output enables. All three types have identical pinouts.

Features

  • HC/ HCT240 Inverting
  • HC/ HCT241 Non-Inverting
  • HC/ HCT244 Non-Inverting
  • Typical Propagation Delay = 8ns at VCC = 5V, CL = 15pF, TA = 25°C for HC240
  • Three-State Outputs
  • Buffered Inputs
  • High-Current Bus Driver Outputs
  • Fanout (Over Temperature Range)
    • Standard Outputs . . . . . . 10 LSTTL Loads
    • Bus Driver Outputs . . . . . 15 LSTTL Loads
  • Wide Operating Temperature Range . . . –55°C to 125°C
  • Balanced Propagation Delay and Transition Times
  • Significant Power Reduction Compared to LSTTL Logic ICs
  • HC Types
    • 2V to 6V Operation
    • High Noise Immunity: NIL = 30%, NIH = 30% of VCC at VCC = 5V
  • HCT Types
    • 4.5V to 5.5V Operation
    • Direct LSTTL Input Logic Compatibility, VIL = 0.8V (Max), VIH = 2V (Min)
    • CMOS Input Compatibility, Il 1µA at VOL, VOH

Data sheet acquired from Harris Semiconductor

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
CD54HCT240 Order now HCT     4.5     5.5     8     6     -6     80     Standard CMOS     Push-Pull     Standard speed (tpd > 50ns)     50     Military     -55 to 125     CDIP | 20    
CD74HCT240 Order now HCT     4.5     5.5     8     6     -6     160     TTL-Compatible CMOS     3-State     Balanced outputs
High speed (tpd 10-50ns)
Input clamp diode    
50     Catalog     -55 to 125     PDIP | 20
SOIC | 20
TSSOP | 20