MC74VHC244: Octal Non-inverting Bus Buffer, 3-State

The MC74VHC244 is an advanced high speed CMOS octal bus buffer fabricated with silicon gate CMOS technology. The MC74VHC244 is a noninverting 3-state buffer, and has two active-low output enables. This device is designed to be used with 3-state memory address drivers, etc.The internal circuit is composed of three stages, including a buffer output which provides high noise immunity and stable output. The inputs tolerate voltages up to 7 V, allowing the interface of 5 V systems to 3 V systems.

Features
  • High Speed: tPD = 3.9ns (Typ) at VCC = 5V
  • Low Power Dissipation: ICC = 4µA (Max) at TA = 25°C
  • High Noise Immunity: VNIH = VNIL = 28% VCC
  • Power Down Protection Provided on Inputs
  • Balanced Propagation Delays
  • Designed for 2V to 5.5V Operating Range
  • Low Noise: VOLP = 0.9V (Max)
  • Pin and Function Compatible with Other Standard Logic Families
  • Latchup Performance Exceeds 300mA
  • ESD Performance: HBM > 2000V; Machine Model > 200V
  • Chip Complexity: 136 FETs
  • Pb-Free Packages are Available
Data Sheets (1)
Document TitleDocument ID/SizeRevisionRevision Date
Octal Bus BufferMC74VHC244/D (134.0kB)9
Package Drawings (2)
Document TitleDocument ID/SizeRevision
SOIC-20 WB751D-05 (36.3kB)H
TSSOP-20 WB948E-02 (39.7kB)D
Order Information
ProductStatusCompliancePackageMSL*ContainerBudgetary Price/Unit
MC74VHC244DTGActivePb-free Halide freeTSSOP-20948E-021Tube75$0.2667
MC74VHC244DTR2GActivePb-free Halide freeTSSOP-20948E-021Tape and Reel2500$0.2667
MC74VHC244DWR2GActivePb-free Halide freeSOIC-20W751D-053Tape and Reel1000$0.2667
NLV74VHC244DTR2GActivePPAP Capable Pb-free Halide freeTSSOP-20948E-021Tape and Reel2500$0.2933
Specifications
ProductChannelsOutputVCC Min (V)VCC Max (V)tpd Max (ns)IO Max (mA)
MC74VHC244DTG83-State25.57.58
MC74VHC244DTR2G83-State25.57.58
MC74VHC244DWR2G83-State25.57.58
NLV74VHC244DTR2G83-State25.57.58
Octal Bus Buffer (134.0kB) MC74VHC244
SOIC-20 WB NLSX3018
TSSOP-20 WB NLSX3018