74LCX32MTR,74LCX32MTR,74LCX32TTR,74LCX32TTR,74LCX32TTR,74LCX32MTR,74LCX32MTR, 规格书,Datasheet 资料

July 2006Rev 71/15

74LCX32

Low voltage CMOS 2-input OR gate

with 5V tolerant inputs

Features

■5V tolerant inputs

■High speed:

–t PD = 5.2ns (Max) at V CC = 3V

■Power down protection on inputs and outputs ■Symmetrical output impedance:

–|I OH | = I OL = 24mA (Min) at V CC = 3V ■PCI bus levels guaranteed at 24mA ■Balanced propagation delays:–t PLH ? t PHL

■Operating voltage range:–V CC (Opr) = 2.0V to 3.6V ■Pin and function compatible with 74 series 32

■Latch-up performance exceeds 500mA (JESD 17)

■

ESD performance: –HBM > 2000V

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

Description

The 74LCX32 is a low voltage CMOS quad 2-input OR gate fabricated with sub-micron silicon gate and double-layer metal wiring C 2MOS 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.

https://www.wendangku.net/doc/f416498422.html,

Order codes

Part number Package Packaging 74LCX32MTR SO-14T ape and reel 74LCX32TTR

TSSOP14

T ape and reel

Contents74LCX32

Contents

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

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

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

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

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

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

3.1Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 6Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 7Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 8Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

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74LCX32Logic symbols and I/O equivalent circuit 1 Logic symbols and I/O equivalent circuit

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Pin settings 74LCX32

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2 Pin settings

2.1 Pin connection

2.2 Pin description

2.3 Truth table

Table 1. Pin description

Pin N°Symbol Name and function

1, 4, 9, 121A to 4A Data inputs 2, 5, 10, 131B to 4B Data inputs 3, 6, 8, 11

1Y to 4Y Data outputs 7GND Ground (0V)

14

V CC

Positive supply voltage

Table 2. Truth table

Inputs

Output A B Y L L L L H H H L H H

H

H

74LCX32Maximum 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 V CC Supply voltage -0.5 to +7.0V V I DC input voltage

-0.5 to +7.0V V O DC output voltage (V CC = 0V)

-0.5 to +7.0V V O DC output voltage (high or low state) (1)1.I O absolute maximum rating must be observed -0.5 to V CC + 0.5

V I IK DC input diode current -50mA I OK DC output diode current (2)2.V O < GND

-50mA I O DC output current

± 50mA I CC DC supply current per supply pin ± 100mA I GND DC ground current per supply pin ± 100mA T stg Storage temperature -65 to +150

°C T L

Lead temperature (10 sec)

300

°C

Table 4. Recommended operating conditions

Symbol Parameter

Value Unit V CC Supply voltage (1)1.Truth table guaranteed: 1.5V to 3.6V 2.0 to 3.6V V I Input voltage

0 to 5.5V V O Output voltage (V CC = 0V)0 to 5.5V V O Output voltage (high or low state)

0 to V CC V I OH , I OL High or low level output current (V CC = 3.0 to 3.6V)± 24mA I OH , I OL High or low level output current (V CC = 2.7V)± 12mA T op Operating temperature -40 to 85°C dt/dv

Input Rise and Fall Time (2)

2.V IN from 0.8V to 2V at V CC =

3.0V

0 to 10

ns/V

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4 Electrical characteristics

Table 5. DC specifications

Symbol

Parameter

Test condition

Value Unit

V CC (V)

-40 to 85°C Min Max

V IH High level input voltage 2.7 to 3.6

2.0

V V IL

Low level input voltage

0.8

V

V OH

High level output voltage

2.7 to

3.6

I O =-100 μA V CC -0.2V 2.7I O =-12 mA 2.23.0I O =-18 mA 2.4I O =-24 mA 2.2

V OL

Low level output voltage

2.7 to

3.6

I O =100 μA 0.2V 2.7I O =12 mA 0.43.0

I O =16 mA 0.4I O =24 mA 0.55I I Input leakage current 2.7 to 3.6V I = 0 to 5.5V ± 5μA I off Power OFF leakage current

V I or V O = 5.5V 10μA I CC Quiescent supply current 2.7 to 3.6V I = V CC or GND 10μA V I or V O = 3.6 to 5.5V ± 10?I CC

I incr. per Input

2.7 to

3.6

V IH = V CC - 0.6V

500

μA Table 6. Dynamic switching characteristics

Symbol

Parameter

Test condition

Value Unit

V CC (V)T A = 25 °C Min

Typ Max

V OLP 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

C L = 50pF

V IL = 0V , V IH = 3.3V

0.8V V OLV

-0.8

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Table 7. AC electrical characteristics

Symbol

Parameter

Test condition

Value

Unit

V CC (V)

C L (pF)R L (?)t s = t r (ns)-40 to 85 °C Min Max t PLH t PHL Propagation delay

time 2.750500 2.5 6.0ns 3.0 to 3.6 1.0

5.2t OSLH t OSHL

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 (t OSLH = | t PLHm - t PLHn |, t OSHL = | t PHLm - t PHLn |)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

V CC (V)T A = 25 °C

Min

Typ Max

C IN Input capacitance 3.3V IN = 0 to V CC 5pF C PD

Power dissipation capacitance (1)

1.C PD 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. I CC(opr) = C PD x V CC x f IN + I CC /4 (per gate)

3.3

f IN = 10MHz V IN = 0 or V CC

41

pF

Test circuit 74LCX32

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5 Test circuit

C L = 50pF or equivalent (includes jig and probe capacitance)R L = 500? or equivalent

R T = Z OUT of pulse generator (typically 50?)

6 Waveforms

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: https://www.wendangku.net/doc/f416498422.html,

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Revision history 74LCX32

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8 Revision history

Table 9. Revision history

Date Revision

Changes

15-Sep-20046Ordering codes revision - pag. 1.

10-Jul-2006

7

New template, temperature ranges updated

74LCX32

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