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MC74VHCT245A

Features: • High Speed: tPD = 4.9ns (Typ) at VCC = 5V• Low Power Dissipation: ICC = 4mA (Max) at TA = 25°C• TTLCompatible Inputs: VIL = 0.8V; VIH = 2.0V• Power Down Protection Provided on Inputs and Outputs• Balanced Propagation Delays• Designed for 4.5V to 5.5V...

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SeekIC No. : 004417244 Detail

MC74VHCT245A: Features: • High Speed: tPD = 4.9ns (Typ) at VCC = 5V• Low Power Dissipation: ICC = 4mA (Max) at TA = 25°C• TTLCompatible Inputs: VIL = 0.8V; VIH = 2.0V• Power Down Protectio...

MC74VHCT245A Data Sheet

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Part Number:
MC74VHCT245A
Supply Ability:
5000

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Product Details

Description



Features:

• High Speed: tPD = 4.9ns (Typ) at VCC = 5V
• Low Power Dissipation: ICC = 4mA (Max) at TA = 25°C
• TTLCompatible Inputs: VIL = 0.8V; VIH = 2.0V
• Power Down Protection Provided on Inputs and Outputs
• Balanced Propagation Delays
• Designed for 4.5V to 5.5V Operating Range
• Low Noise: VOLP = 1.6V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300mA
• ESD Performance: HBM > 2000V; Machine Model > 200V
• Chip Complexity: 304 FETs or 76 Equivalent Gates


Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
VCC DC Supply Voltage (Referenced to GND) 0.5 to +7.0 V
Vi DC Input Voltage (Referenced to GND) 0.5 to +7.0 V
Vout DC Output Voltage (Referenced to GND) 0.5 to +7.0
0.5toVCC + 0.5		 V
Iik DC Input Current, per Pin -20 mA
Iok DC Output Sink/Source Current, per Pin ±20 mA
lout DC Output Source/Sink Current ±25  
ICC DC VCC or GND Current per Output Pin ±75 mA
pd Power dissipation in still 500
400		  
Tstg Storage Temperature 65 to +150 °C



Description

The MC74VHCT245A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.

MC74VHCT245A is intended for twoway asynchronous communication between data buses. The direction of data transmission is determined by the level of the DIR input. The output enable pin (OE) can be used to disable the device, so that the buses are effectively isolated.

All inputs are equipped with protection circuits against static discharge. The VHCT inputs are compatible with TTL levels. MC74VHCT245A can be used as a level converter for interfacing 3.3V to 5.0V, because it has full 5V CMOS level output swings.

The VHCT245A input and output (when disabled) structures provide protection when voltages between 0V and 5.5V are applied, regardless of the supply voltage. These input and output structures of MC74VHCT245A help prevent device destruction caused by supply voltage input/output voltage mismatch, battery backup, hot insertion, etc.




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