74LCX14M - STMicroelectronics

1/8Septe mber 2001

■5V TOLERANT INPUTS

■HIGH SPE ED :

tPD = 5.0ns (MAX.) at VCC = 3V

■POWER DOWN PROTE CTION ON INPUTS

AND OUTPUTS

■SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 24m A (MIN) at VCC = 3V

■PCI BUS LEVEL S GUARAN TEED AT 24 mA

■BALANCED PROPAGATION DELAYS:

tPLH ≅ tPHL

■OPERATING VOLTAGE R ANGE:

VCC(OPR) = 2.0V to 3.6V (1.5V Data

Retention)

■PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 14

■LATCH-UP PERF ORMANCE EXCEEDS

500m A (JESD 17)

■ESD PERFORMANCE:

HB M > 2000V (MIL STD 883 method 3015);

MM > 200V

DESCRIPTION

The 74LCX14 is a low voltage CMOS HEX

SCHMITT INVERTER fabricated with sub-m icron

silicon gate and double-layer metal wiring C2MOS

technology. It is ideal for low power and high

speed 3.3V applications. It can be int erfaced to 5V

signal environm ent for inputs

It has same speed performance at 3.3V than 5V

AC/ACT family, combined with a lower power

consumption.

Pin configuration and function are the same as

those of the 74LCX04 but the 74LCX14 has

hysteresis between the positive and negative

input threshold typi cally of 0.8V.

This together with its schmitt trigger function

allows it to be used on line receivers with slow

rise/fall input signals.

All inputs and outputs are equipped with

protection circui ts against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

74LCX14

LOW VOLTAGE CMO S HEX SCHM ITT INVERTER

WITH 5V TOLERANT INP UTS

PIN CONNECTION AND IEC LOGIC SYMBOLS

ORDER CODES

PACKAGE TUBE T & R

SOP 74LCX14M 74LCX14MTR

TSSOP 74LCX14TTR

TSSOPSOP

74LCX14

2/8

INPUT AND OUT PUT EQUIVALENT CIRCUIT

PIN DESCRIPTION TRUTH TABL E

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is

not implie d

1) IO absolute maxim um rati ng must be ob served

2) VO < GND

PIN No SYMBOL NAME AND FUNCTION

1, 3, 5, 9 ,11,

13 1A to 6A Data Inputs

2, 4, 6, 8, 10,

12 1Y to 6Y Data Outputs

7 GND Ground (0V)

14 VCC Positive Supply Voltage

Symbol Parameter Value Unit

VCC Supply Voltage -0.5 to +7.0 V

VIDC Input Voltage -0.5 to +7.0 V

VODC Output Voltage (VCC = 0V) -0.5 to +7.0 V

VODC Output Voltage (High or Low State) (note 1) -0.5 to VCC + 0.5 V

IIK DC Input Diode Current - 50 mA

IOK DC Output Diode Current (note 2) - 50 mA

IODC Output Current ± 50 mA

ICC DC Supply Current per Supply Pin ± 100 mA

IGND DC Ground Current per Supply Pin ± 100 mA

Tstg Storage Temperature -65 to +150 °C

TLLead Temperature (10 sec) 300 °C

74LCX14

3/8

RECOMMENDE D OPERATING CONDITIONS

1) T ruth Tabl e guarant eed: 1. 5V to 3 .6V

DC SPE CIFICATI ONS

DYNAMIC SWITCHING CHARACTERISTICS

1 ) Numbe r of o utputs d ef ined as "n " . Measured with "n-1" ou tputs swi t ching from HIGH t o LOW or L OW to HIGH . The rema i n i ng output is

measur ed i n t he LOW state.

Symbol Parameter Value Unit

VCC Supply Voltage (note 1) 2.0 to 3.6 V

VIInput Volta ge 0 to 5.5 V

VOOutput Voltage (VCC = 0V) 0 to 5.5 V

VOOutput Voltage (High or Low State) 0 to VCC V

IOH, IOL High or Low Level Output Current (VCC = 3.0 to 3.6V) ± 24 mA

IOH, IOL High or Low Level Output Current (VCC = 2.7V) ± 12 mA

Top Operating Temperature -55 to 125 °C

Symbol Parameter

Test Condition Value

Unit

VCC

(V)

-40 to 85 °C -55 to 125 °C

Min. Max. Min. Max.

VT+ Positive Input

threshold 3.0 1.2 2.2 1.2 2.2 V

VT- Negative Input

threshold 3.0 0.6 1.5 0.6 1.5 V

VHHysteresis Voltage 3.0 0.4 1.2 0.4 1.2 V

VOH High Level Output

Voltage 2.7 to 3.6 IO=-100 µAV

CC-0.2 VCC-0.2

2.7 IO=-12 mA 2.2 2.2

3.0 IO=-18 mA 2.4 2.4

IO=-24 mA 2.2 2.2

VOL Low Level Output

Voltage 2.7 to 3.6 IO=100 µA0.2 0.2

2.7 IO=12 mA 0.4 0.4

3.0 IO=16 mA 0.4 0.4

IO=24 mA 0.55 0.55

IIInput Leakage

Current 2.7 to 3.6 VI = 0 to 5.5V ± 5 ± 5 µA

Ioff Power Off Leakage

Current 0VI or VO = 5.5V 10 10 µA

ICC Quiescent Supply

Current 2.7 to 3.6 VI = VCC or GND 10 10 µA

VI or VO= 3.6 to 5.5V ± 10 ± 10

∆ICC ICC incr. per Input 2.7 to 3.6 VIH = VCC - 0.6V 500 500 µA

Symbol Parameter

Test Condition Value

Unit

VCC

(V)

TA = 25 °C

Min. Typ. Max.

VOLP Dynamic Low Level Quiet

Output (note 1) 3.3 CL = 50pF

VIL = 0V, VIH = 3.3V 0.8 V

VOLV -0.8

74LCX14

4/8

AC EL ECTRI CAL CHARACTERISTICS

1) Skew is def ined as the absolute value of the difference between the actual propagation delay for any two outputs of the same device switch-

in g i n the same di rection, eith er HIGH or LO W (tOSLH = | tPLHm - tPLHn|, tOSHL = | tPHLm - tPHLn|)

2) Parameter guarante ed by design

CAPACITIVE CHARACT ERISTICS

1) C PD is defined as the value of t he IC’s internal equivalent capacitanc e which is calculated from the operating current consumption without

load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. ICC(opr) = CPD x V CC x fIN + ICC/6 (per gate)

TEST CIRCUIT

CL = 50p F or equiva l ent (i nclud es jig and p robe capac i tance)

RL = 500Ω or equivalent

RT = ZOUT of pulse gen erator (typically 5 0Ω)

Symbol Parameter

Test Condition Value

Unit

VCC

(V) CL

(pF) RL

(Ω)ts = tr

(ns)

-40 to 85 °C -55 to 125 °C

Min. Max. Min. Max.

tPLH tPHL Pr opaga tion Delay

Time 2.7 50 500 2.5 6.5 6.5 ns

3.0 to 3.6 1.5 5.0 1.5 5.0

tOSLH

tOSHL

Output To Output

Skew Time (note1,

3.0 to 3.6 50 500 2.5 1.0 1.0 ns

Symbol Parameter

Test Condition Value

Unit

VCC

(V)

TA = 25 °C

Min. Typ. Max.

CIN Input Capacitanc e 3.3 VIN = 0 to VCC 6pF

PD Power Dissipation Capacitance

(note 1) 3.3 fIN = 10MHz

VIN = 0 or VCC

48 pF

74LCX14

5/8

WAVEFORM : PROPAGATION DELAY (f=1MHz; 50% duty cycle)

74LCX14

6/8

DIM. mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 1.75 0.068

a1 0.1 0.2 0.003 0.007

a2 1.65 0.064

b 0.35 0.46 0.013 0.018

b1 0.19 0.25 0.007 0.010

C 0.5 0.019

c1 45° (typ.)

D 8.55 8.75 0.336 0.344

E 5.8 6.2 0.228 0.244

e 1.27 0.050

e3 7.62 0.300

F 3.8 4.0 0.149 0.157

G 4.6 5.3 0.181 0.208

L 0.5 1.27 0.019 0.050

M 0.68 0.026

S8° (max.)

SO-14 MECHANICAL DATA

PO13G

74LCX14

7/8

DIM. mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 1.2 0.047

A1 0.05 0.15 0.002 0.004 0.006

A2 0.8 1 1.05 0.031 0.039 0.041

b 0.19 0.30 0.007 0.012

c 0.09 0.20 0.004 0.0089

D 4.9 5 5.1 0.193 0.197 0.201

E 6.2 6.4 6.6 0.244 0.252 0.260

E1 4.3 4.4 4.48 0.169 0.173 0.176

e 0.65 BSC 0.0256 BSC

K0° 8°0° 8°

L 0.45 0.60 0.75 0.018 0.024 0.030

TSSOP14 MECHANICAL DATA

PIN 1 IDENTIFICATION

A1 L

0080337D

74LCX14

8/8

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systems with out expres s written approval of STMicroelec tronics .

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