74ALVC245 Fairchild Semiconductor, 74ALVC245 Datasheet

74ALVC245

Manufacturer Part Number

74ALVC245

Description

Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs

Manufacturer

Fairchild Semiconductor

Datasheet

1.74ALVC245.pdf (7 pages)

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74ALVC245WM

74ALVC245MTC

74ALVC245

Low Voltage Bidirectional Transceiver

with 3.6V Tolerant Inputs and Outputs

General Description

The ALVC245 contains eight non-inverting bidirectional

buffers with 3-STATE outputs and is intended for bus ori-

ented applications. The T/R input determines the direction

of data flow. The OE input disables both the A and B ports

by placing them in a high impedance state.

The 74ALVC245 is designed for low voltage (1.65V to

3.6V) V

The 74ALVC245 is fabricated with an advanced CMOS

technology to achieve high-speed operation while main-

taining low CMOS power dissipation.

Ordering Code:

Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Logic Symbol

Quiet Series

Order Number

applications with I/O compatibility up to 3.6V.

is a trademark of Fairchild Semiconductor Corporation.

Package Number

MTC20

M20B

20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide

20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

DS500647

Features

Note 1: To ensure the high impedance state during power up and power

down, OE

value of the resistor is determined by the current sourcing capability of the

driver.

Pin Descriptions

T/R

1.65V to 3.6V V

3.6V tolerant inputs and outputs

Power-off high impedance inputs and outputs

Supports Live Insertion and Withdrawal (Note 1)

3.4 ns max for 3.0V to 3.6V V

3.9 ns max for 2.3V to 2.7V V

6 ns max for 1.65V to 1.95V V

Uses patented Quiet Series

circuitry

Latchup conforms to JEDEC JED78

ESD performance:

Human body model

Machine model

Pin Names

–A

–B

Package Description

should be tied to V

Output Enable Input (Active LOW)

Transmit/Receive Input

Side A Inputs or 3-STATE Outputs

Side B Inputs or 3-STATE Outputs

200V

supply operation

2000V

through a pull up resistor. The minimum

September 2001

Revised February 2002

Description

noise/EMI reduction

www.fairchildsemi.com

Related parts for 74ALVC245

74ALVC245 Summary of contents

Page 1

... The T/R input determines the direction of data flow. The OE input disables both the A and B ports by placing them in a high impedance state. The 74ALVC245 is designed for low voltage (1.65V to 3.6V) V applications with I/O compatibility up to 3.6V. CC ...

Page 2

Connection Diagram Logic Diagram www.fairchildsemi.com Truth Table Inputs Outputs OE T Bus B –B Data to Bus Bus A –A Data to Bus HIGH Z State on A ...

Page 3

Absolute Maximum Ratings Supply Voltage ( Input Voltage ( Output Voltage (V ) (Note 4) 0. Input Diode Current ( Output Diode Current (I ) ...

Page 4

AC Electrical Characteristics Symbol Parameter V CC Min Propagation Delay 1.3 PHL PLH Output Enable Time 1.6 PZL PZH Output Disable Time 1.7 PLZ PHZ Capacitance Symbol Parameter C Input Capacitance ...

Page 5

AC Loading and Waveforms FIGURE 1. AC Test Circuit (Input Characteristics: f Symbol 3. FIGURE 2. Waveform for Inverting and Non-Inverting Functions ...

Page 6

Physical Dimensions inches (millimeters) unless otherwise noted 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide www.fairchildsemi.com Package Number M20B 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and Fairchild reserves ...

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