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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. : 004416885 Detail

MC74HC138A: 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...

MC74HC138A Data Sheet

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Part Number:: MC74HC138A
Supply Ability:: 5000

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Upload time: 2024/11/23

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Microprocessors (MPU) REV 1.4,-40C PB FREE SPH

Product Details

Description

Pinout

Connection Diagram

Specifications

Symbol	Parameter	Value	Unit
V_CC	DC Supply Voltage (Referenced to GND)	0.5 to + 7.0	V
V_in	DC Input Voltage (Referenced to GND)	-0.5 to V_CC + 0.5	V
V_out	DC Output Voltage (Referenced to GND)	-0.5 to V_CC + 0.5	V
I_in	DC Input Current, per Pin	± 20	mA
I_out	DC Output Current, per Pin	± 25	mA
I_CC	DC Supply Current, VCC and GND Pins	± 50	mA
P_D	Power Dissipation in still Air Plastic DIP + SOIC Package+ TSSOP Package+	750 500 450	mW
T_stg	Storage Temperature	-65to +150
T_L	Tead Temperature ,1mm form Case for 10 Seconds Plastic DIP , SOIC or TSSOP Package	260

Description

The MC74HC138A is identical in pinout to the LS138. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.

The HC138A decodes a threebit Address to oneofeight activelow outputs. This device features three Chip Select inputs, two activelow and one activehigh to facilitate the demultiplexing, cascading, and chipselecting functions. The demultiplexing function of MC74HC138A 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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MC74HC138A

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