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부품번호 | KK74HCT139A 기능 |
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기능 | Dual 1-of-4 Decoder/Demultiplexer | ||
제조업체 | KODENSHI KOREA | ||
로고 | |||
TECHNICAL DATA
Dual 1-of-4 Decoder/Demultiplexer
High-Performance Silicon-Gate CMOS
KK74HCT139A
The KK74HCT139A is identical in pinout to the LS/ALS139. The
KK74HCT139A may be used as a level converter for interfacing TTL or
NMOS outputs to High Speed CMOS inputs.
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.
• TTL/NMOS Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 µA
ORDERING INFORMATION
KK74HCT139AN Plastic
KK74HCT139AD SOIC
TA = -55° to 125° C for all packages
LOGIC DIAGRAM
PIN ASSIGNMENT
PIN 16 =VCC
PIN 8 = GND
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FUNCTION TABLE
Inputs
Outputs
Select A1 A0 Y0 Y1 Y2
H X X HH H
L L L LH H
L L HHL H
L H L HH L
L H H HH H
X = don’t care
Y3
H
H
H
H
L
1
KK74HCT139A
AC ELECTRICAL CHARACTERISTICS (VCC=5.0 V ± 10%, CL=50pF,Input tr=tf=6.0 ns)
Symbol
Parameter
tPLH, tPHL
tPLH, tPHL
tTLH, tTHL
CIN
Maximum Propagation Delay, Select to OutputY
(Figures 1 and 3)
Maximum Propagation Delay , Input A to
OutputY (Figures 2 and 3)
Maximum Output Transition Time, Any Output
(Figures 1 and 3)
Maximum Input Capacitance
Guaranteed Limit
25 °C
to
-55°C
≤85°C ≤125°C
23 29 35
Unit
ns
23 29 35 ns
15 19 22 ns
10 10 10 pF
Power Dissipation Capacitance (Per Decoder)
CPD Used to determine the no-load dynamic power
consumption:
PD=CPDVCC2f+ICCVCC
Typical @25°C,VCC=5.0 V
60
pF
Figure 1. Switching Waveforms
Figure 2. Switching Waveforms
4
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
부품번호 | 상세설명 및 기능 | 제조사 |
KK74HCT139A | Dual 1-of-4 Decoder/Demultiplexer | KODENSHI KOREA |
DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |