54LCX245NOPB - National Semiconductor

Original Creation Date: 09/17/98

Last Update Date: 03/09/99

Last Major Revision Date: 02/15/99

MN54LCX245-X REV 0A0 MICROCIRCUIT DATA SHEET

Low Voltage Octal Bidirectional Transceiver With 5V

Tolerant Inputs and Outputs

General Description

The LCX245 contains eight non-inverting bidirectional buffers with Tri-State outputs and

is intended for bus oriented applications. The device is designed for low voltage (3.3V)

Vcc applications with capability of interfacing to a 5V signal environment. The T/R input

determines the direction of data flow through the device. The OE input disables both the A

and B ports by placing them in a high impedance state.

The LCX245 is fabricated with an advanced CMOS technology to achieve high speed operation

while maintaining CMOS low power dissipation.

NS Part Numbers

54LCX245E-QML*

54LCX245J-QML**

54LCX245W-QML***

Industry Part Number

54LCX245

Prime Die

LCX245

Controlling Document

5962-97543

Processing

MIL-STD-883, Method 5004

Quality Conformance Inspection

MIL-STD-883, Method 5005

Subgrp Description Temp ( C)

1 Static tests at +25 C

2 Static tests at +125 C

3 Static tests at -55 C

4 Dynamic tests at +25 C

5 Dynamic tests at +125 C

6 Dynamic tests at -55 C

7 Functional tests at +25 C

8A Functional tests at +125 C

8B Functional tests at -55 C

9 Switching tests at +25 C

10 Switching tests at +125 C

11 Switching tests at -55 C

MICROCIRCUIT DATA SHEET

MN54LCX245-X REV 0A0

Features

- 5V tolerant inputs and outputs

- Power down high impedance inputs and outputs

- Supports live insertion / withdrawl

- Standard Military Drawing (SMD)

- LCX245: 5962-9754302Q2A*, QRA**, QSA***

MICROCIRCUIT DATA SHEET

MN54LCX245-X REV 0A0

(Absolute Maximum Ratings)

(Note 1)

Supply Voltage (Vcc) -0.5V to +7.0V

DC Input Diode Current (Iik) -50 mAVi < GND

DC Input Voltage (Vi) -0.5V to 7.0V

DC Output Diode Current (Iok) -50 mAVo < GND +50 mAVo > Vcc

DC Output Voltage (Vo) -0.5V to Vcc +0.5VOutput in High or Low State (Note 2) -0.5V to 7.0VOutput in TRI-STATE

DC Output Source or Sink Current (Io) +50 mA

DC Vcc or Ground Current (Icc or Ignd) +200 mA

Storage Temperature (Tstg) -65 C to +150 C

Junction Temperature (Tj) 175 CCDIP

Note 1: Stresses above the absolute maximum rating may cause permanent damage to the device.

Extended operation at the maximum levels may degrade performance and affect

reliability.

Note 2: The DC output current (Io) absolute maximum rating must be observed.

Recommended Operating Conditions

Supply Voltage (Vcc) 2.7V to 3.6VOperating

Input Voltage (Vi) 0V to 5.5V

Output Voltage (Vo) 0V to VccHigh or low state 0V to 5.5VTri-State

Operating Temperature -55 C to +125 C

Input Edge Rate (Delta t / Delta V) 0 ns/V to 10 ns/VVin = 0.8V to 2.0V, Vcc = 3.0 V

Output Current (Ioh / Iol) +24mAVcc = 3.0V to 3.6V +12mAVcc = 2.7V

Minimum high-level input voltage (Vih) 2.0VVcc = 2.7V to 3.6V

Maximum low-level input voltage (Vil) 0.8VVcc = 2.7V to 3.6V

MN54LCX245-X REV 0A0 MICROCIRCUIT DATA SHEET

Electrical Characteristics

DC PARAMETERS

(The following conditions apply to all the following parameters, unless otherwise specified.)

DC: VCC 2.7 V to 3.6V, Temp. Range: -55C to 125C.

SYMBOL PARAMETER CONDITIONS NOTES PIN-

NAME MIN MAX UNIT SUB-

GROUPS

IIH High Level Input

Current VCC=3.6V, VM=5.5V 1, 2 OE, T/R 5.0 uA 1, 2,

IIL Low Level Input

Current VCC=3.6V, VM=0.0V 1, 2 OE, T/R -5.0 uA 1, 2,

VOL Low level output

voltage VCC=2.7V, VIL=0.8V, VIH=2.0V,

IOL=100.0uA 1, 2 OUTPUT .20 V 1, 2,

VCC=3.6V, VIL=0.8V, VIH=2.0V,

IOL=100.0uA 1, 2 OUTPUT .20 V 1, 2,

VCC=2.7V, VIL=0.8V, VIH=2.0V,

IOL=12.0mA 1, 2 OUTPUT .40 V 1, 2,

VCC=3.0V, VIL=0.8V, VIH=2.0V,

IOL=24.0mA 1, 2 OUTPUT .55 V 1, 2,

VOH High Level Output

Voltage VCC=2.7V, VIH=2.0V, VIL=0.8V,

IOH=-100.0uA 1, 2 OUTPUT 2.5 V 1, 2,

VCC=3.6V, VIH=2.0V, VIL=0.8V,

IOH=-100.0uA 1, 2 OUTPUT 3.4 V 1, 2,

VCC=2.7V, VIH=2.0V, VIL=0.8V,

IOH=-12.0mA 1, 2 OUTPUT 2.2 V 1, 2,

VCC=3.0V, VIH=2.0V, VIL=0.8V,

IOH=-12mA 1, 2 OUTPUT 2.4 V 1, 2,

VCC=3.0V, VIH=2.0V, VIL=0.8V,

IOH=-24.0mA 1, 2 OUTPUT 2.2 V 1, 2,

IOZH Maximum TRI-STATE

Leakage Current VCC=2.7V, VM=5.5V, VINL=0.0V,

VINH=2.7V, VIH=2.0V 1, 2 OUTPUT 5.0 uA 1, 2,

VCC=3.6V, VM=5.5V, VINL=0.0V,

VINH=3.6V, VIH=2.0V 1, 2 OUTPUT 5.0 uA 1, 2,

IOZL Maximum TRI-STATE

Leakage Current VCC=2.7V, VM=0.0V, VINH=2.7V,

VINL=0.0V, VIH=2.0V 1, 2 OUTPUT -5.0 uA 1, 2,

VCC=3.6V, VM=0.0V, VINH=3.6V,

VINL=0.0V, VIH=2.0V 1, 2 OUTPUT -5.0 uA 1, 2,

ICCF Quiescent Supply

Current VCC=3.6V, VINH=3.6V, VINL=0.0V 1, 2 VCC 10.0 uA 1, 2,

ICCZR Supply Current

Outputs Tri-State VCC=3.6V, force 5.5V on all inputs and

outputs 1, 2 VCC -10.0 10.0 uA 1, 2,

VCC=2.7V, force 5.5V on all inputs and

outputs 1, 2 VCC -10.0 10.0 uA 1, 2,

ICCT Supply Current

per Input (TTL

Levels)

VCC=3.6V, VINT=VCC-0.6V, VINL=0.0V 1, 2 VCC 0.5 mA 1, 2,

VCC=2.7V, VINT=VCC-0.6V, VINL=0.0V 1, 2 VCC 0.5 mA 1, 2,

MN54LCX245-X REV 0A0 MICROCIRCUIT DATA SHEET

Electrical Characteristics

DC PARAMETERS(Continued)

(The following conditions apply to all the following parameters, unless otherwise specified.)

DC: VCC 2.7 V to 3.6V, Temp. Range: -55C to 125C.

SYMBOL PARAMETER CONDITIONS NOTES PIN-

NAME MIN MAX UNIT SUB-

GROUPS

IOFF Power-Off Leakage

Current VCC=0.0V, VM=5.5V, VINL=0.0V 1, 2 INPUTS/

OUTPUTS 100.0 uA 1, 2,

VIKL Clamp Diode

Voltage VCC=3.0V, IM=-18mA, VINL=0.0V,

VINH=3.0V 1, 2 OE, T/R -1.2 V 1, 2,

VOLP Quiet Output

Maximum Dynamic

VOL

VCC=3.0V, LOAD 50pF / 500 OHMS 5 OUTPUT 1.0 V 4

VOLV Quiet Output

Minimum Dynamic

VOL

VCC=3.0V, LOAD 50pF / 500 OHMS 5 OUTPUT -0.8 V 4

VOHP Quiet Output

Maximum Dynamic

VOH

VCC=3.0V, LOAD 50pF / 500 OHMS 5 OUTPUT 0.7 V 4

VOHV Quiet Output

Minimum Dynamic

VOH

VCC=3.0V, LOAD 50pF / 500 OHMS 5 OUTPUT -1.1 V 4

CIN Input Capacitance VCC=Gnd 5 OE, T/R 12 pF 4

CIO Input/Output

Capacitance VCC=3.3V 5 I/O 12 pF 4

CPD Power Dissipation

Capacitance VCC=3.3V, VIN=0.0V to VCC, F = 10 MHz 5 VCC 50 pF 4

MN54LCX245-X REV 0A0 MICROCIRCUIT DATA SHEET

Electrical Characteristics

AC PARAMETERS

(The following conditions apply to all the following parameters, unless otherwise specified.)

AC: CL=50pf, TR/TF=2.5ns, Vin=0V to 2.7V, VM(input)=1.5V, VM(output)=1.5V, Temp range: -55C to +125C.

SYMBOL PARAMETER CONDITIONS NOTES PIN-

NAME MIN MAX UNIT SUB-

GROUPS

tpLH Propagation Delay VCC=2.7V 3, 4 An/Bn

Bn/An

1.5 9.0 ns 9, 10,

VCC=3.0V to 3.6V 3, 4 An/Bn

Bn/An

1.5 8.0 ns 9, 10,

tpHL Propagation Delay VCC=2.7V 3, 4 An/Bn

Bn/An

1.5 9.0 ns 9, 10,

VCC=3.0V to 3.6V 3, 4 An/Bn

Bn/An

1.5 8.0 ns 9, 10,

tpZL Output Enable

Time VCC=2.7V 3, 4 OE to

An or

1.5 11.0 ns 9, 10,

VCC=3.0V to 3.6V 3, 4 OE to

An or

1.5 10.0 ns 9, 10,

tpZH Output Enable

Time VCC=2.7V 3, 4 OE to

An or

1.5 11.0 ns 9, 10,

VCC=3.0V to 3.6V 3, 4 OE to

An or

1.5 10.0 ns 9, 10,

tpHZ Output Disable

Time VCC=2.7V 3, 4 OE to

An or

1.5 9.0 ns 9, 10,

VCC=3.0V to 3.6V 3, 4 OE to

An or

1.5 8.0 ns 9, 10,

tpLZ Output Disable

Time VCC=2.7V 3, 4 OE to

An or

1.5 9.0 ns 9, 10,

VCC=3.0V to 3.6V 3, 4 OE to

An or

1.5 8.0 ns 9, 10,

tOSHL Output to Output

Skew VCC=2.7V to 3.6V 5 OUTPUT 1.0 ns 9, 10,

tOSLH Output to Output

Skew VCC=2.7V to 3.6V 5 OUTPUT 1.0 ns 9, 10,

Note 1: SCREEN TESTED 100% ON EACH DEVICE AT +25C, +125C, & -55C TEMPERATURE, SUBGROUPS 1, 2,

3, 7, & 8.

Note 2: SAMPLE TESTED (METHOD 5005, TABLE 1) ON EACH MFG. LOT AT +25C, +125C, & -55C

TEMPERATURE, SUBGROUPS A1, 2, 3, 7, & 8.

Note 3: SCREEN TESTED 100% ON EACH DEVICE AT +25C, +125C, & -55C TEMPERATURE, SUBGROUPS A9,

10, & 11.

MN54LCX245-X REV 0A0 MICROCIRCUIT DATA SHEET

(Continued)

Note 4: SAMPLE TESTED (METHOD 5005, TABLE 1) ON EACH MFG. LOT AT +25C, +125C, & -55C

TEMPERATURE, SUBGROUPS A9, 10, & 11.

Note 5: GUARANTEED BUT NOT TESTED. (DESIGN CHARACTERIZATION DATA)

MICROCIRCUIT DATA SHEET

MN54LCX245-X REV 0A0

Revision History

Rev ECN # Rel Date Originator Changes

0A0 M0002892 03/09/99 Linda Collins Initial MDS Release