Datenblatt-pdf.com


74VHC139 Schematic ( PDF Datasheet ) - Fairchild Semiconductor

Teilenummer 74VHC139
Beschreibung Dual 2-to-4 Decoder/Demultiplexer
Hersteller Fairchild Semiconductor
Logo Fairchild Semiconductor Logo 




Gesamt 6 Seiten
74VHC139 Datasheet, Funktion
November 1992
Revised April 1999
74VHC139
Dual 2-to-4 Decoder/Demultiplexer
General Description
The VHC139 is an advanced high speed CMOS Dual 2-to-
4 Decoder/Demultiplexer fabricated with silicon gate
CMOS technology. It achieves the high speed operation
similar to equivalent Bipolar Schottky TTL while maintain-
ing the CMOS low power dissipation.
The active LOW enable input can be used for gating or it
can be used as a data input for demultiplexing applications.
When the enable input is held HIGH, all four outputs are
fixed at a HIGH logic level independent of the other inputs.
An input protection circuit ensures that 0V to 7V can be
applied to the input pins without regard to the supply volt-
age. This device can be used to interface 5V to 3V systems
and two supply systems such as battery back up. This cir-
cuit prevents device destruction due to mismatched supply
and input voltages.
Features
s High Speed: tPD = 5.0 ns (typ) at TA = 25°C
s Low power dissipation: ICC = 4 µA (Max.) at TA = 25°C
s High noise immunity: VNIH = VNIL = 28% VCC (Min.)
s Power down protection is provided on all inputs
s Pin and function compatible with 74HC139
Ordering Code:
Order Number
74VHC139M
74VHC139SJ
74VHC139MTC
74VHC139N
Package Number
Package Description
M16A
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150” Narrow
M16D
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
MTC16
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
N16E
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Pin Description
Pin Names
A0, A1
E
O0–O3
Truth Table
Description
Address Inputs
Enable Inputs
Outputs
Inputs
Outputs
E A0 A1 O0 O1 O2 O3
HX X H H H H
LL L L H H H
LH L H L H H
LL H H H L H
LH H H H H L
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
© 1999 Fairchild Semiconductor Corporation DS011521.prf
www.fairchildsemi.com






74VHC139 Datasheet, Funktion
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300” Wide
Package Number N16E
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
www.fairchildsemi.com
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves the right at any time without notice to change said circuitry and specifications.

6 Page







SeitenGesamt 6 Seiten
PDF Download[ 74VHC139 Schematic.PDF ]

Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
74VHC132QUAD 2-INPUT SCHMITT NAND GATESTMicroelectronics
STMicroelectronics
74VHC132Quad 2-Input NAND Schmitt TriggerFairchild Semiconductor
Fairchild Semiconductor
74VHC132Quad 2-Input NAND Schmitt TriggerNational Semiconductor
National Semiconductor
74VHC1383 TO 8 LINE DECODERSTMicroelectronics
STMicroelectronics
74VHC1383-to-8 Decoder / DemultiplexerFairchild Semiconductor
Fairchild Semiconductor

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com       |      2020       |      Kontakt     |      Suche