Fairchild 74LCX02 service manual

查询74LCX02供应商

74LCX02
Low Voltage Quad 2-Input NOR Gate

with 5V Tolerant Inputs

74LCX02 Low Voltage Quad 2-Input NOR Gate with 5V Tolerant Inputs

March 1995
Revised June 1999

General Description

The LCX02 contains fou r 2-input NOR gates. The inputs
tolerate voltages up to 7V allowing the inter face of 5 V sys­tems to 3V systems.

The 74LCX02 is fabricated with advanced CMO S 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 exce eds 500 mA

■ ESD performance:

Human body model > 2000V

Machine model > 200V

specification provided

CC

max (V

PD

CC

= 3.3V), 10 µA ICC max

= 3.0V)

CC

Ordering Code:

Order Number Package Number Package Description

74LCX02M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow
74LCX02SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74LCX02MTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Devices also availab le in Tape and Reel. Specify by appending the suffix letter “X” to the o rdering code.

Logic Symbol

IEEE/IEC

Connection Diagram

Pin Descriptions

Pin Names Description

, B

A

n

n

O

n

© 1999 Fairchild Semiconductor Corporation ds012409.prf www.fairchildsemi.com

Inputs
Outputs

Absolute Maximum Ratings(Note 1)

Symbol Parameter Value Conditions Units

74LCX02

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 2) V
DC Input Diode Current −50 VI < GND mA
DC Output Diode Current −50 VO < GND

+50 V

O

> V

CC

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 4)

Symbol Parameter Min Max Units

V

CC

V

I

V

O

I

OH/IOL

T

A

∆t/∆V Input Edge Rate, V

Note 1: The Absolute Maximum Ratings are those beyond which the saf ety of the d evice cann ot be guara nteed. Th e devi ce s hould not b e operating at these
limits. The parametric values defined in the Electrical Characteristics tables are not guaranteed at the Absolute Maximum Ratings. The “Recommended

Operating Cond iti ons” table will define the conditions for actu al device operation.

Note 2: I
Note 3: Unused inputs must be held HIGH or LOW. They may not float.

Supply Voltage Operating 2.0 3.6

Data Retention 1.5 3.6
Input Voltage 05.5V
Output Voltage HIGH or LOW State 0 V

CC

Output Current VCC = 3.0V − 3.6V ±24

= 2.7V − 3.0V ±12

CC

= 2.3V − 2.7V ±8

V

CC

Free-Air Ope rating Temperature −40 85 °C

= 0.8V–2.0V, VCC = 3.0V 0 10 ns/V

IN

Absolute Maximum Rating must be observed.

O

mA

V

V

mAV

DC Electrical Characteristics

Symbol Parameter Conditions

V

IH

V

IL

V

OH

V

OL

I

I

I

OFF

I

CC

∆I

CC

www.fairchildsemi.com 2

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 = −100µA2.3 − 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 = 100µA2.3 − 3.6 0.2

IOL = 8mA 2.3 0.6
IOL = 12 mA 2.7 0.4 V
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

µA

AC Electrical Characteristics

TA = −40°C to +85°C, RL = 500 Ω

Symbol Parameter

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

CL= 50 pF CL = 50 pF CL = 30 pF

Min Max Min Max Min Max

t

PHL

t

PLH

t

OSHL

t

OSLH

Note 4: Skew is def ined as the absolute value of the difference between th e actual propaga tio n delay for any two s eparate outputs o f t he same device. The
specification applies t o any outputs switchi ng in the same direction, either HIGH-to-LOW (t

Propagation Delay Time 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 1.0
(Note 4) 1.0

) or LOW-to-HIGH (t

OSHL

OSLH

).

Dynamic Switching Characteristics

TA = 25°C

V

Symbol Parameter Conditions

V

OLP

Quiet Output Dynamic Peak V

OL

CL = 50 pF, VIH = 3.3V, VIL = 0V 3.3 0.8

(V)

CC

Typical

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

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

74LCX02

Units

ns

ns

Units

V

V

3 www.fairchildsemi.com