74LCX08MTR - STMicroelectronics - Datasheet.Directory

July 2006 Rev 5 1/15

74LCX08

Low voltage CMOS QUAD 2-input AND gate

with 5V tolerant inputs

Features

■5V tolerant inputs

■High speed:

–t

PD = 4.1ns (Max) at VCC = 3V

■Power down protection on inputs and outputs

■Symmetrical output impedance:

–|I

OH| = IOL = 24mA (Min) at VCC = 3V

■PCI bus levels guaranteed at 24mA

■Balanced propagation delays:

–t

PLH ≅ tPHL

■Operating voltage range:

–V

CC (Opr) = 2.0V to 3.6V

■Pin and function compatible with

74 series 08

■Latch-up performance exceeds

500mA (JESD 17)

■ESD performance:

– HBM > 2000V

(MIL STD 883 method 3015); MM > 200V

Description

The 74LCX08 is a low voltage CMOS QUAD 2-

input AND gate fabricated with sub-micron silicon

gate and double-layer metal wiring C2MOS

technology. It is ideal for low power and high

speed 3.3V applications; it can be interfaced to

5V signal environment for inputs.

It has same speed performance at 3.3V than 5V

AC/ACT family, combined with a lower power

consumption.

All inputs and outputs are equipped with

protection circuits against static discharge, giving

them 2KV ESD immunity and transient excess

voltage.

SO-14 TSSOP14

www.st.com

Order codes

Part number Package Packaging

74LCX08MTR SO-14 Tape and reel

74LCX08TTR TSSOP14 Tape and reel

Contents 74LCX08

2/15

Contents

1 Logic symbols and I/O equivalent circuit . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.3 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

74LCX08 Logic symbols and I/O equivalent circuit

3/15

1 Logic symbols and I/O equivalent circuit

Figure 1. IEC logic symbols

Figure 2. Input and output equivalent circuit

Pin settings 74LCX08

4/15

2 Pin settings

2.1 Pin connection

Figure 3. Pin connection (top through view)

2.2 Pin description

2.3 Truth table

Table 1. Pin description

Pin N° Symbol Name and function

1, 4, 9, 12 1A to 4A Data inputs

2, 5, 10, 13 1B to 4B Data inputs

3, 6, 8, 11 1Y to 4Y Data outputs

7 GND Ground (0V)

14 VCC Positive supply voltage

Table 2. Truth table

Inputs Output

ABY

LLL

LHL

HLL

HHH

74LCX08 Maximum rating

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3 Maximum rating

stressing the device above the rating listed in the “absolute maximum ratings” table may

cause permanent damage to the device. these are stress ratings only and operation of the

device at these or any other conditions above those indicated in the operating sections of

this specification is not implied. exposure to absolute maximum rating conditions for

extended periods may affect device reliability. refer also to the STMicroelectronics sure

program and other relevant quality documents.

3.1 Recommended operating conditions

Table 3. Absolute maximum ratings

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) (1)

1. IO absolute maximum rating must be observed

-0.5 to VCC + 0.5 V

IIK DC input diode current -50 mA

IOK DC output diode current (2)

2. VO < GND

-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

Table 4. Recommended operating conditions

Symbol Parameter Value Unit

VCC Supply voltage (1)

1. Truth table guaranteed: 1.5V to 3.6V

2.0 to 3.6 V

VIInput voltage 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 -40 to 85 °C

dt/dv Input rise and fall time (2)

2. VIN from 0.8V to 2V at VCC = 3.0V

0 to 10 ns/V

Electrical characteristics 74LCX08

6/15

4 Electrical characteristics

Table 5. DC specifications

Symbol Parameter

Test condition Value

Unit

VCC

(V)

-40 to 85°C

Min Max

VIH High level input

voltage 2.7 to 3.6

2.0 V

VIL Low level input

voltage 0.8 V

VOH High level output

voltage

2.7 to 3.6 IO=-100 µAV

CC-0.2

2.7 IO=-12 mA 2.2

3.0

IO=-18 mA 2.4

IO=-24 mA 2.2

VOL Low level output

voltage

2.7 to 3.6 IO=100 µA0.2

2.7 IO=12 mA 0.4

3.0

IO=16 mA 0.4

IO=24 mA 0.55

IIInput leakage current 2.7 to 3.6 VI = 0 to 5.5V ± 5 µA

Ioff Power OFF leakage

current 0VI or VO = 5.5V 10 µA

ICC Quiescent supply

current 2.7 to 3.6

VI = VCC or GND 10

µA

VI or VO= 3.6 to 5.5V ± 10

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

Table 6. Dynamic switching characteristics

Symbol Parameter

Test condition Value

Unit

VCC

(V)

TA = 25 °C

Min Typ Max

VOLP Dynamic low level quiet

output (1)

1. Number of outputs defined as "n". Measured with "n-1" outputs switching from HIGH to LOW or LOW to

HIGH. The remaining output is measured in the LOW state.

3.3 CL = 50pF

VIL = 0V, VIH = 3.3V

0.8

VOLV -0.8

74LCX08 Electrical characteristics

7/15

Table 7. AC electrical characteristics

Symbol Parameter

Test condition Value

Unit

VCC

(V)

(pF)

(Ω)

ts = tr

(ns)

-40 to 85 °C

Min Max

tPLH tPHL Propagation delay

time

2.7 50 500 2.5 4.8 ns

3.0 to 3.6 1.0 4.1

tOSLH

tOSHL

Output to output

skew time (1) (2)

1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two

outputs of the same device switching in the same direction, either HIGH or LOW (tOSLH = | tPLHm - tPLHn|,

tOSHL = | tPHLm - tPHLn|)

2. Parameter guaranteed by design

3.0 to 3.6 50 500 2.5 1.0 ns

Table 8. Capacitive characteristics

Symbol Parameter

Test condition Value

Unit

VCC

(V)

TA = 25 °C

Min Typ Max

CIN Input capacitance 3.3 VIN = 0 to VCC 6pF

CPD

Power dissipation

capacitance (1)

1. CPD is defined as the value of the IC’s internal equivalent capacitance 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 VCC x fIN + ICC/4 (per gate)

3.3 fIN = 10MHz

VIN = 0 or VCC

3.8 pF

Test circuit 74LCX08

8/15

5 Test circuit

Figure 4. Test circuit

CL = 50pF or equivalent (includes jig and probe capacitance)

RL = 500

Ω

or equivalent

RT = ZOUT of pulse generator (typically 50

Ω

)

6 Waveforms

Figure 5. Waveform - propagation delay (f = 1MHz; 50% duty cycle)

74LCX08 Package mechanical data

9/15

7 Package mechanical data

In order to meet environmental requirements, ST offers these devices in ECOPACK®

packages. These packages have a Lead-free second level interconnect . The category of

second level interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratings related to soldering

conditions are also marked on the inner box label. ECOPACK is an ST trademark.

ECOPACK specifications are available at: www.st.com

Package mechanical data 74LCX08

10/15

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 1.35 1.75 0.053 0.069

A1 0.1 0.25 0.004 0.010

A2 1.10 1.65 0.043 0.065

B 0.33 0.51 0.013 0.020

C 0.19 0.25 0.007 0.010

D 8.55 8.75 0.337 0.344

E 3.8 4.0 0.150 0.157

e 1.27 0.050

H 5.8 6.2 0.228 0.244

h 0.25 0.50 0.010 0.020

L 0.4 1.27 0.016 0.050

k0° 8°0° 8°

ddd 0.100 0.004

SO-14 MECHANICAL DATA

0016019D

74LCX08 Package mechanical data

11/15

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

Package mechanical data 74LCX08

12/15

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 330 12.992

C 12.8 13.2 0.504 0.519

D 20.2 0.795

N 60 2.362

T 22.4 0.882

Ao 6.4 6.6 0.252 0.260

Bo 9 9.2 0.354 0.362

Ko 2.1 2.3 0.082 0.090

Po 3.9 4.1 0.153 0.161

P 7.9 8.1 0.311 0.319

Tape & Reel SO-14 MECHANICAL DATA

74LCX08 Package mechanical data

13/15

DIM.

mm. inch

MIN. TYP MAX. MIN. TYP. MAX.

A 330 12.992

C 12.8 13.2 0.504 0.519

D 20.2 0.795

N 60 2.362

T 22.4 0.882

Ao 6.7 6.9 0.264 0.272

Bo 5.3 5.5 0.209 0.217

Ko 1.6 1.8 0.063 0.071

Po 3.9 4.1 0.153 0.161

P 7.9 8.1 0.311 0.319

Tape & Reel TSSOP14 MECHANICAL DATA

Revision history 74LCX08

14/15

8 Revision history

Table 9. Revision history

Date Revision Changes

15-Sep-2004 4 Ordering codes revision - pag. 1.

10-Jul-2006 5 New template, temperature ranges updated

74LCX08

15/15

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