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74LVC139DB 数据表(PDF) 2 Page - NXP Semiconductors

部件名 74LVC139DB
功能描述  Dual 2-to-4 line decoder/demultiplexer
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 PHILIPS - NXP Semiconductors

74LVC139DB 数据表(HTML) 2 Page - NXP Semiconductors

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Philips Semiconductors
Product specification
74LVC139
Dual 2-to-4 line decoder/demultiplexer
2
1998 Apr 28
853-2059 19309
FEATURES
Wide supply voltage range of 1.2 to 3.6 V
In accordance with JEDEC standard no. 8-1A
Inputs accept voltages up to 5.5 V
CMOS lower power consumption
Direct interface with TTL levels
Demultiplexing capability
Two independent 2-to-4 decoders
Multifunction capability
Active LOW mutually exclusive outputs
Output drive capability 50 W transmission lines at 85°C
DESCRIPTION
The 74LVC139 is a low-voltage, low-power, high-performance
Si-gate CMOS device, superior to most advanced CMOS
compatible TTL families.
The 74LVC139 is a dual 2-to-4 line decoder/demultiplexer. This device
has two independent decoders, each accepting two binary weighted
inputs (nA0 and nA1) and providing four mutually exclusive active LOW
outputs (nY0 to nY3). Each decoder has an active LOW input (nE).
When nE is HIGH, every output is forced HIGH. The enable can be
used as the data input for a 1-to-4 demultiplexer application.
QUICK REFERENCE DATA
GND = 0 V; Tamb = 25°C; tr = tf ≤ 2.5 ns
SYMBOL
PARAMETER
CONDITIONS
TYPICAL
UNIT
tPHL/tPLH
Propagation delay
nA to nYn,
nE to nYn,
CL = 50 pF;
VCC = 3.3 V
3.3
3.2
ns
CI
Input capacitance
5.0
pF
CPD
Power dissipation capacitance per
multiplexer
VCC = 3.3 V
Notes 1 and 2
36
pF
NOTES:
1. CPD is used to determine the dynamic power dissipation (PD in µW)
PD = CPD × VCC2 × fi ) (CL × VCC2 × fo) where:
fi = input frequency in MHz; CL = output load capacity in pF;
fo = output frequency in MHz; VCC = supply voltage in V;
(CL × VCC2 × fo) = sum of the outputs.
2. The condition is V1 = GND to VCC
ORDERING INFORMATION
PACKAGES
TEMPERATURE RANGE
OUTSIDE NORTH AMERICA
NORTH AMERICA
PKG. DWG. #
16-Pin Plastic SO
–40
°C to +85°C
74LVC139 D
74LVC139 D
SOT109-1
16-Pin Plastic SSOP Type II
–40
°C to +85°C
74LVC139 DB
74LVC139 DB
SOT338-1
16-Pin Plastic TSSOP Type I
–40
°C to +85°C
74LVC139 PW
74LVC139PW DH
SOT403-1
PIN CONFIGURATION
SV00530
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1E
1A0
1A1
1Y0
1Y1
1Y2
1Y3
GND
VCC
2E
2A0
2A1
2Y0
2Y1
2Y2
2Y3
PIN DESCRIPTION
PIN NUMBER
SYMBOL
NAME AND FUNCTION
1, 15
1E, 2E
Enable inputs (active LOW)
2, 3
1A0, 1A1
Address inputs
14, 13
2A0, 2A1
Address in uts
4, 5, 6, 7
1Y0 to 1Y3
Outputs (active LOW)
12, 11, 10, 9
2Y0 to 2Y3
Out uts (active LOW)
8
GND
Ground (0 V)
16
VCC
Positive supply voltage


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