Fairchild 74LCX00 service manual

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74LCX00
Low Voltage Quad 2-Input NAND Gate

with 5V Tolerant Inputs

74LCX00 Low Voltage Quad 2-Input NAND Gate with 5V Tolerant Inputs

March 1995
Revised January 2005

General Description

The LCX00 contain s four 2-inp ut NAND ga tes. The inp uts
tolerate voltages up to 7V al lowing the in terface of 5 V sys­tems to 3V systems.

The 74LCX00 is fabrica ted with advanced C MOS technol­ogy to achieve high speed operation while maintaining
CMOS low power dissipation.

Features

■ 5V tolerant inputs

■ 2.3V–3.6V V

■ 5.2 ns t

■ Power down high impedance inputs and outputs

■

±24 mA output drive (V

■ Implements patented noise/EMI reduction circuitry

■ Latch-up performance exceeds JEDEC 78 conditions

■ ESD performance:

Human body model
Machine model

■ Leadless Pb-Free DQFN package

specifications provided

CC

max (V

PD

CC

> 200V

= 3.3V), 10 µA I

= 3.0V)

CC

> 2000V

max

CC

Ordering Code:

Order Number

74LCX00M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74LCX00MX_NL

(Note 2)
74LCX00SJ M14D Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCX00BQX

(Note 1)
74LCX00MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
74LCX00MTCX_NL

(Note 2)

Devices also availab l e in Tape and Reel. Specify by appending th e s uffix let t er “X” to the ordering code.
Pb-Free pac k age per JEDEC J-STD-020B.

Note 1: DQFN package available in Tape and Reel only.
Note 2: “_NL” package available in Tape and Reel only.

Package

Number

M14A Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow

MLP014A Pb-Free 14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC

MO-241, 2.5 x 3.0mm

MTC14 Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm

Wide

Package Description

© 2005 Fairchild Semiconductor Corporation DS012408 www.fairchildsemi.com

Logic Symbol

Connection Diagrams

74LCX00

Pin Descriptions

Pin Names Description

A

, B

n

n

O

n

IEEE/IEC

Inputs
Outputs

Pin Assignments for SOIC, SOP, and TSSOP

Pad Assignments for DQFN

(Top View)

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Absolute Maximum Ratings(Note 3)

Symbol Parameter Value Conditions Units

V
V
V
I
I

I
I
I
T

CC
I

O
IK
OK

O
CC
GND

STG

Supply Voltage −0.5 to +7.0 V
DC Input Voltage −0.5 to +7.0 V
DC Output Voltage −0.5 to VCC + 0.5 Output in HIGH or LOW State (Note 4) V
DC Input Diode Current −50 VI < GND mA
DC Output Diode Current −50 VO < GND

+50 V

> V

O

CC

mA

DC Output Source/Sink Current ±50 mA
DC Supply Current per Supply Pin ±100 mA
DC Ground Current per Ground Pin ±100 mA
Storage Temperature −65 to +150 °C

Recommended Operating Conditions (Note 5)

Symbol Parameter Min Max Units

V

V
V
I

OH/IOL

T

A

∆t/∆V Input Edge Rate, V

Note 3: The Absolute Maximum Ratings are those values beyond which the safety of the device cannot be guaranteed. The device should not be operated
at these limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The “Recom-
mended Operating Conditions” table will define th e c onditions for actual dev ic e operation.

Note 4: I
Note 5: Unused inputs must be held HIGH or LOW. They may not flo at .

Supply Voltage Operating 2.0 3.6

CC

Data Retention 1.5 3.6

Input Voltage 05.5V

I

Output Voltage HIGH or LOW State 0 V

O

Output Current VCC = 3.0V − 3.6V ±24

= 2.7V - 3.0V ±12

CC

= 2.3V - 2.7V ±8

V

CC

Free-Air Operating Temperature −40 85 °C

= 0.8V–2.0V, VCC = 3.0V 0 10 ns/V

IN

Absolute Maximum Rating must be observed.

O

CC

mAV

74LCX00

V

V

DC Electrical Characteristics

Symbol Parameter Conditions

V

V

V

V

I
I
I

∆I

IH

IL

OH

OL

I
OFF
CC

CC

HIGH Level Input Voltage 2.3 − 2.7 1.7

LOW Level Input Voltage 2.3 − 2.7 0.7

HIGH Level Output Voltage IOH = −100 µA2.3 − 3.6 VCC − 0.2

IOH = −8 mA 2.3 1.8
IOH = −12 mA 2.7 2.2
IOH = −18 mA 3.0 2.4
IOH = −24 mA 3.0 2.2

LOW Level Output Voltage IOL = 100 µA2.3 − 3.6 0.2

IOL = 8mA 2.3 0.6
IOL = 12 mA 2.7 0.4
IOL = 16 mA 3.0 0.4

IOL = 24 mA 3.0 0.55
Input Leakage Current 0 ≤ VI ≤ 5.5V 2.3 − 3.6 ±5.0 µA
Power-Off Leakage Current VI or VO = 5.5V 0 10 µA
Quiescent Supply Current VI = VCC or GND 2.3 − 3.6 10

3.6V ≤ VI ≤ 5.5V 2.3 − 3.6 ±10

Increase in ICC per Input VIH = VCC −0.6V 2.3 − 3.6 500 µA

V

CC

(V) Min Max

2.7 − 3.6 2.0

2.7 − 3.6 0.8

TA = −40°C to +85°C

Units

V

V

V

V

µA

3 www.fairchildsemi.com

AC Electrical Characteristics

= −40°C to +85°CF, RL = 500Ω

T

A

74LCX00

Symbol Parameter

V

= 3.3V ± 0.3V VCC = 2.7V VCC = 2.5V ± 0.2V

CC

= 50pF CL = 50pF CL = 30pF

C

L

Min Max Min Max Min Max

t

PHL

t

PLH

t

OSHL

t

OSLH

Note 6: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The
specification applies to any outputs sw it c hing in the same direction, either HIGH-to-LOW (t

Propagation Delay 1.5 5.2 1.5 6.0 1.5 6.2

1.5 5.2 1.5 6.0 1.5 6.2

Output to Output Skew (Note 6) 1.0

1.0

) or LOW-to-HIGH (t

OSHL

OSLH

).

Dynamic Switching Characteristics

Symbol Parameter Conditions

V

OLP

Quiet Output Dynamic Peak V

OL

CL = 50 pF, VIH = 3.3V, VIL = 0V 3.3 0.8
CL = 30 pF, VIH = 2.5V, VIL = 0V 2.5 0.6

V

OLV

Quiet Output Dynamic Valley V

OL

CL = 50 pF, VIH = 3.3V, VIL = 0V 3.3 −0.8
CL = 30 pF, VIH = 2.5V, VIL = 0V 2.5 −0.6

V

(V) Typical

CCTA

= 25°C

Capacitance

Symbol Parameter Conditions Typical Units

C

IN

C

OUT

C

PD

Input Capacitance VCC = Open, VI = 0V or V
Output Capacitance VCC = 3.3V, VI = 0V or V

CC

CC

7pF
8pF

Power Dissipation Capacitance VCC = 3.3V, VI = 0V or VCC, f = 10 MHz 25 pF

Units

ns

ns

Unit

V

V

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