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MC74HCT138A

PinoutSpecifications Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) 0.5 to + 7.0 V Vin DC Input Voltage (Referenced to GND) -0.5 to VCC + 0.5 V Vout DC Output Voltage (Referenced to GND) -0.5 to VCC + 0.5 V Iin DC Input Current, per Pin ± 20 ...

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SeekIC No. : 004417018 Detail

MC74HCT138A: PinoutSpecifications Symbol Parameter Value Unit VCC DC Supply Voltage (Referenced to GND) 0.5 to + 7.0 V Vin DC Input Voltage (Referenced to GND) -0.5 to VCC + 0.5 V Vout D...

MC74HCT138A Data Sheet

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Part Number:
MC74HCT138A
Supply Ability:
5000

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Product Details

Description



Pinout

Connection Diagram


Specifications

Symbol Parameter Value Unit
VCC DC Supply Voltage (Referenced to GND) 0.5 to + 7.0 V
Vin DC Input Voltage (Referenced to GND) -0.5 to VCC + 0.5 V
Vout DC Output Voltage (Referenced to GND) -0.5 to VCC + 0.5 V
Iin DC Input Current, per Pin ± 20 mA
Iout DC Output Current, per Pin ± 25 mA
ICC DC Supply Current, VCC and GND Pins ± 50 mA
PD Power Dissipation in still Air                 Plastic DIP +
                                                       SOIC Package+
                                                     TSSOP Package+		 750
500
450		 mW
Tstg Storage Temperature -65to +150
TL Tead Temperature ,1mm form Case for 10 Seconds
                       Plastic DIP , SOIC or TSSOP Package
 260



Description

The MC74HCT138A is identical in pinout to the LS138. The HCT138A may be used as a level converter for interfacing TTL or NMOS outputs to High Speed CMOS inputs.

The HCT138A decodes a threebit Address to oneofeight activelot outputs. MC74HCT138A features three Chip Select inputs, two activelow and one activehigh to facilitate the demultiplexing, cascading, and chipselecting functions. The demultiplexing function is accomplished by using the Address inputs to select the desired device output; one of the Chip Selects is used as a data input while the other Chip Selects are held in their active states.




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