SN74AHC240 Octal Buffers/Drivers With 3-State Outputs | TI.com

SN74AHC240
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Octal Buffers/Drivers With 3-State Outputs

Octal Buffers/Drivers With 3-State Outputs - SN74AHC240
Datasheet
 

Description

These octal buffers/drivers are designed specifically to improve the performance and density of 3-state memory-address drivers, clock drivers, and bus-oriented receivers and transmitters.

The ’AHC240 devices are organized as two 4-bit buffers/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.

Features

  • Operating Range 2-V to 5.5-V VCC
  • Latch-Up Performance Exceeds 250 mA Per JESD 17

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
SN74AHC240 Order now AHC     2     5.5     8     8     -8     40     Standard CMOS     3-State     Balanced outputs
Very high speed (tpd 5-10ns)
Over-voltage tolerant inputs    
220     Catalog     -40 to 85     PDIP | 20
SOIC | 20
SO | 20
TSSOP | 20    
SN54AHC240 Samples not available AHC     2     5.5     8     50     -50     40     Standard CMOS     3-State     Balanced outputs
Very high speed (tpd 5-10ns)
Over-voltage tolerant inputs    
200     Military     -55 to 125     CDIP | 20
CFP | 20
LCCC | 20