參數(shù)資料
型號(hào)： 933650460602
廠商： NXP SEMICONDUCTORS
元件分類： 編、解碼器及復(fù)用、解復(fù)用
英文描述： F/FAST SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDIP16
封裝： PLASTIC, SOT-38-4, DIP-16
文件頁(yè)數(shù)： 2/8頁(yè)
文件大小： 75K
代理商： 933650460602
Philips Semiconductors
Product specification
74F139
1-of-4 decoder/demultiplexer
2
February 23, 1990
853–0344 98903
FEATURES
Demultiplexing capability
Two independent 1-of-4 decoders
Multifunction capability
DESCRIPTION
The 74F139 is a high speed, dual 1-of-4 decoder/demultiplexer. This
device has two independent decoders, each accepting two binary
weighted inputs (A0n, A1n) and providing four mutually exclusive
active-Low outputs (Q0n–Q3n). Each decoder has an active-Low
Enable (E). When E is High, every output is forced High. The Enable
can be used as the Data input for a 1-of-4 demultiplexer application.
TYPE
TYPICAL
PROPAGATION
DELAY
TYPICAL
SUPPLY CURRENT
(TOTAL)
74F139
5.3ns
13mA
PIN CONFIGURATION
16
15
14
13
12
11
10
7
6
5
4
3
2
1
Q3a
VCC
Q0b
Q1b
Q2b
A1b
Eb
A0b
Ea
A0a
Q2a
A1a
Q0a
Q1a
9
8
GND
Q3b
SF00129
ORDERING INFORMATION
DESCRIPTION
COMMERCIAL RANGE
VCC = 5V ±10%,
Tamb = 0°C to +70°C
PKG DWG #
16-pin plastic DIP
N74F139N
SOT38-4
16-pin plastic SO
N74F139D
SOT109-1
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F (U.L.) HIGH/LOW
LOAD VALUE HIGH/LOW
Ana, Anb
Address inputs
1.0/1.0
20
A/0.6mA
Ea, Eb
Enable inputs (active Low)
1.0/1.0
20
A/0.6mA
Q0n–Q3n
Data outputs (active Low)
50/33
1.0mA/20mA
NOTE: One (1.0) FAST unit load is defined as: 20
A in the High state and 0.6mA in the Low state.
LOGIC SYMBOL
A0a
A1a
Ea
12
3
VCC = Pin 16
GND = Pin 8
SF00130
Q0a
Q1a Q2a
45
6
Q3a
7
A0b
A1b
Eb
15
14
13
Q0b
Q1b Q2b
12
11
10
Q3b
9
DECODER a
DECODER b
IEC/IEEE SYMBOL
SF00131
DEMUX
2
3
1
14
13
15
4
5
6
7
12
11
10
9
0
1
0
1
2
G
0
3
相關(guān)PDF資料
PDF描述
933739460623 F/FAST SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
933739460602 F/FAST SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16
933653910602 F/FAST SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDIP20
933739580602 F/FAST SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20
933739580623 F/FAST SERIES, 8-BIT IDENTITY COMPARATOR, INVERTED OUTPUT, PDSO20
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