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SN74LV27A Datasheet, PDF (1/13 Pages) Texas Instruments – TRIPLE 3 INPUT POSITIVE NOR GATE
SN54LV27A, SN74LV27A
TRIPLE 3ĆINPUT POSITIVEĆNOR GATE
D 2-V to 5.5-V VCC Operation
D Max tpd of 7 ns at 5 V
D Typical VOLP (Output Ground Bounce)
<0.8 V at VCC = 3.3 V, TA = 25°C
D Typical VOHV (Output VOH Undershoot)
>2.3 V at VCC = 3.3 V, TA = 25°C
D Ioff Supports Partial-Power-Down Mode
Operation
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 2000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
SCES341E − SEPTEMBER 2000 − REVISED APRIL 2005
SN54LV27A . . . J OR W PACKAGE
SN74LV27A . . . D, DB, DGV, NS, OR PW PACKAGE
(TOP VIEW)
1A 1
1B 2
2A 3
2B 4
2C 5
2Y 6
GND 7
14 VCC
13 1C
12 1Y
11 3C
10 3B
9 3A
8 3Y
SN54LV27A . . . FK PACKAGE
(TOP VIEW)
description/ordering information
These triple 3-input positive-NOR gates are
designed for 2-V to 5.5-V VCC operation.
The ’LV27A devices perform the Boolean function
Y = A + B + C or Y = A • B • C in positive logic.
These devices are fully specified for
partial-power-down applications using Ioff. The Ioff
circuitry disables the outputs, preventing
damaging current backflow through the devices
when they are powered down.
2A
3 2 1 20 19
4
18
1Y
NC 5
17 NC
2B 6
16 3C
NC 7
15 NC
2C 8
14 3B
9 10 11 12 13
NC − No internal connection
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SOIC − D
Tube of 50
Reel of 2500
SN74LV27AD
SN74LV27ADR
LV27A
SOP − NS
Reel of 2000 SN74LV27ANSR
74LV27A
SSOP − DB
−40°C to 85°C
Reel of 2000
Tube of 90
SN74LV27ADBR
SN74LV27APW
LV27A
TSSOP − PW
Reel of 2000 SN74LV27APWR
LV27A
Reel of 250 SN74LV27APWT
TVSOP − DGV Reel of 2000 SN74LV27ADGVR
LV27A
CDIP − J
Tube of 25
SNJ54LV27AJ
SNJ54LV27AJ
−55°C to 125°C CFP − W
Tube of 150 SNJ54LV27AW
SNJ54LV27AW
LCCC − FK
Tube of 55
SNJ54LV27AFK
SNJ54LV27AFK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information current as of publication date. Products conform to
specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all
parameters.
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Copyright  2005, Texas Instruments Incorporated
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