74VHC244: Octal Buffer/Line Driver with 3-STATE Outputs

Datasheet: Octal Buffer/Line Driver with 3-STATE Outputs
Rev. A (217kB)
Product Overview
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The VHC244 is an advanced high speed CMOS octal bus buffer fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHC244 is a non-inverting 3-STATE buffer having two active-LOW output enables. These devices are designed to be used as 3-STATE memory address drivers, clock drivers, and bus oriented transmitter/receivers. An input protection circuit ensures that 0V to 7V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5V to 3V systems and two supply systems such as battery back up. This circuit prevents device destruction due to mismatched supply and input voltages.
Features
 
  • High Speed: tPD = 3.9ns (typ) at VCC = 5V
  • High noise immunity: VNIH = VNIL = 28% VCC (min)
  • Power down protection is provided on all inputs
  • Low noise: VOLP = 0.6V (typ)
  • Low power dissipation: ICC = 4 µA (max) @ TA = 25°C
  • Pin and function compatible with 74HC244
Applications
  • This product is general usage and suitable for many different applications.
Technical Documentation & Design Resources
Simulation Models (5) Package Drawings (2)
Data Sheets (1)  
Availability & Samples
Specifications
Product
Status
Compliance
Description
Package
MSL
Container
Budgetary Price/Unit
Type
Case Outline
Type
Temperature
Type
Qty.
74VHC244M Last Shipments
Pb-free
Halide free
74VHC244 SOIC-20W 751BJ 1 260 Tube 1080  
74VHC244MTC Active
Pb-free
74VHC244 TSSOP-20 948AQ 1 260 Tube 1825 $0.2791
74VHC244MTCX Active
Pb-free
74VHC244 TSSOP-20 948AQ 1 260 Tape and Reel 2500 $0.2536
74VHC244MX Last Shipments
Pb-free
Halide free
74VHC244 SOIC-20W 751BJ 1 260 Tape and Reel 1000  
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19) : >1K
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19) : >1K
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19) : >10K
Market Leadtime (weeks) : Contact Factory
Avnet   (2020-08-19) : >1K

Product
Description
Pricing ($/Unit)
Compliance
Status
Channels
Output
VCC Min (V)
VCC Max (V)
tpd Max (ns)
IO Max (mA)
Package Type
74VHC244MTC  
 $0.2791 
Pb
 Active   
8
3-State
2
5.5
3.9
8
TSSOP-20
74VHC244MTCX  
 $0.2536 
Pb
 Active   
8
3-State
2
5.5
3.9
8
TSSOP-20
Case Outlines
751BJ    948AQ   
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