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MC74HC139AFL1-MC74HC139AFL2-MC74HC139AFR2 Fast Delivery,Good Price
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Partno Mfg Dc Qty AvailableDescript
MC74HC139AFL1MOTON/a550avaiDual 1-of-4 Decoder/Demultiplexer
MC74HC139AFL2MOTN/a964avaiDual 1-of-4 Decoder/Demultiplexer
MC74HC139AFR2MOTN/a2000avaiDual 1-of-4 Decoder/Demultiplexer


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MC74HC147N ,Decimal-to-BCD EncoderMAXIMUM RATINGS*ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ..
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MCR69-2 ,Silicon Controlled RectifiersMAXIMUM RATINGS (T = 25°C unless otherwise noted)JRating Symbol Value UnitMARKINGPeak Repetitive Of ..
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MC74HC139AFL1-MC74HC139AFL2-MC74HC139AFR2
Dual 1-of-4 Decoder/Demultiplexer
--High–Performance Silicon–Gate CMOS
The MC74HC139A is identical in pinout to the LS139. The device
inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LSTTL outputs.
This device consists of two independent 1–of–4 decoders, each of
which decodes a two–bit Address to one–of–four active–low outputs.
Active–low Selects are provided to facilitate the demultiplexing and
cascading functions. The demultiplexing function is accomplished by
using the Address inputs to select the desired device output, and
utilizing the Select as a data input. Output Drive Capability: 10 LSTTL Loads Outputs Directly Interface to CMOS, NMOS and TTL Operating V oltage Range: 2.0 to 6.0 V Low Input Current: 1.0 μA High Noise Immunity Characteristic of CMOS Devices In Compliance with the Requirements Defined by JEDEC Standard
No. 7A Chip Complexity: 100 FETs or 25 Equivalent Gates
LOGIC DIAGRAM

A0a
A1a
SELECTa
A0b
A1b
SELECTb
Y0a
Y1a
Y2a
Y3a
Y0b
Y1b
Y2b
Y3b
ACTIVE–LOW
OUTPUTS
ADDRESS
INPUTS
PIN 16 = VCC
PIN 8 = GND
ACTIVE–LOW
OUTPUTS
ADDRESS
INPUTS 13
FUNCTION TABLE
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