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PDF MC74VHCT139A Data sheet ( Hoja de datos )
| Número de pieza | MC74VHCT139A | |
| Descripción | Dual 2-to-4 Decoder/ Demultiplexer | |
| Fabricantes | ON Semiconductor | |
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MC74VHCT139A
Dual 2−to−4 Decoder/
Demultiplexer
The MC74VHCT139A is an advanced high speed CMOS 2−to−4
decoder/demultiplexer fabricated with silicon gate CMOS technology.
It achieves high speed operation similar to equivalent Bipolar
Schottky TTL devices while maintaining CMOS low power
dissipation.
When the device is enabled (E = low), it can be used for gating or as
a data input for demultiplexing operations. When the enable input is
held high, all four outputs are fixed high, independent of other inputs.
The internal circuit is composed of three stages, including a buffer
output which provides high noise immunity and stable output.
The device output is compatible with TTL−type input thresholds
and the output has a full 5.0 V CMOS level output swing. The input
protection circuitry on this device allows overvoltage tolerance on the
input, allowing the device to be used as a logic−level translator from
3.0 V CMOS logic to 5.0 V CMOS logic, or from 1.8 V CMOS logic
to 3.0 V CMOS logic while operating at the high−voltage power
supply
The MC74VHCT139A input structure provides protection when
voltages up to 7.0 V are applied, regardless of the supply voltage. This
allows the MC74VHCT139A to be used to interface 5.0 V circuits to
3.0 V circuits. The output structures also provide protection when
VCC = 0 V. These input and output structures help pwrwewv.DeatnaSthedet4eUv.ciocme
destruction caused by supply voltage−input/output voltage mismatch,
battery backup, hot insertion, etc.
Features
• High Speed: tPD = 5.0 ns (Typ) at VCC = 5.0 V
• Low Power Dissipation: ICC = 4 mΑ (Max) at TA = 25°C
• TTL−Compatible Inputs: VIL = 0.8 V; VIH = 2.0 V
• Power Down Protection Provided on Inputs and Outputs
• Balanced Propagation Delays
• Designed for 2.0 V to 5.5 V Operating Range
• Low Noise: VOLP = 0.8 V (Max)
• Pin and Function Compatible with Other Standard Logic Families
• Latchup Performance Exceeds 300 mA
• ESD Performance:
Human Body Model > 2000 V;
Machine Model > 200 V
• Chip Complexity: 100 FETs or 25 Equivalent Gates
• Pb−Free Packages are Available*
http://onsemi.com
MARKING
DIAGRAMS
16
SOIC−16
D SUFFIX
CASE 751B
VHCT139AG
AWLYWW
11
16
TSSOP−16
VHCT
DT SUFFIX
139A
CASE 948F
ALYWG
G
11
16
SOEIAJ−16
M SUFFIX
CASE 966
74VHCT139
ALYWG
11
A = Assembly Location
WL, L = Wafer Lot
Y = Year
WW, W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
FUNCTION TABLE
Inputs
E A1 A0
H XX
L LL
L LH
L HL
L HH
Outputs
Y0 Y1 Y2 Y3
H HH H
L HH H
H LH H
H HL H
H HH L
*For additional information on our Pb−Free strategy and soldering details, please
download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
© Semiconductor Components Industries, LLC, 2006
January, 2006 − Rev. 4
1
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 5 of this data sheet.
Publication Order Number:
MC74VHCT139A/D
1 page  
MC74VHCT139A
A
tPLH
Y
1.5 V
1.5 V
tPHL
Figure 7. Switching Waveform
3.0 V
GND
VOH
VOL
E
1.5 V
Y
tPHL
1.5 V
3.0 V
GND
tPLH
VOH
VOL
Figure 8. Switching Waveform
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
CL*
*Includes all probe and jig capacitance
Figure 9. Test Circuit
ORDERING INFORMATION
Device
Package
Shipping†
MC74VHCT139AD
SOIC−16
48 Units / Rail
MC74VHCT139ADG
SOIC−16
(Pb−Free)
48 Units / Rail
MC74VHCT139ADR2
SOIC−16
2500 Tape & Reel
MC74VHCT139ADR2G
SOIC−16
(Pb−Free)
2500 Tape & Reel
MC74VHCT139ADT
TSSOP−16*
96 Units / Rail
MC74VHCT139ADTG
TSSOP−16*
96 Units / Rail
MC74VHCT139ADTR2
TSSOP−16*
2500 Tape & Reel
MC74VHCT139ADTRG
TSSOP−16*
2500 Tape & Reel
MC74VHCT139AM
SOEIAJ−16
50 Units / Rail
MC74VHCT139AMG
SOEIAJ−16
(Pb−Free)
50 Units / Rail
MC74VHCT139AMEL
SOEIAJ−16
2000 Tape & Reel
MC74VHCT139AMELG
SOEIAJ−16
(Pb−Free)
2000 Tape & Reel
†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging
Specifications Brochure, BRD8011/D.
*This package is inherently Pb−Free.
http://onsemi.com
5
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