74LCXP16245_05 FAIRCHILD [Fairchild Semiconductor], 74LCXP16245_05 Datasheet

74LCXP16245_05

Manufacturer Part Number

74LCXP16245_05

Description

Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs/Outputs and Pull-Down Resistors

Manufacturer

FAIRCHILD [Fairchild Semiconductor]

Datasheet

1.74LCXP16245_05.pdf (8 pages)

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74LCXP16245MEA

74LCXP16245MTD

74LCXP16245

Low Voltage 16-Bit Bidirectional Transceiver with

5V Tolerant Inputs/Outputs and Pull-Down Resistors

General Description

The LCXP16245 contains sixteen non-inverting bidirec-

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

oriented applications. The device is designed for low volt-

age (2.5V or 3.3V) V

facing to a 5V signal environment. The device is byte

controlled. Each byte has separate control inputs which

could be shorted together for full 16-bit operation. The T/R

inputs determine the direction of data flow through the

device. The OE inputs disable both the A and B ports by

placing them in a high impedance state.

In addition, A and B port datapath pins have built-in resis-

tors to GND allowing the pins to float without any increase

in I

and space constrained applications where additional space

consumed by external resistors is not available.

The LCXP16245 is fabricated with an advanced CMOS

technology to achieve high speed operation while maintain-

ing CMOS low power dissipation.

Ordering Code:

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

Logic Symbol

Order Number

current. This feature is intended to address modular

Package Number

applications with capability of inter-

MS48A

MTD48

48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide

48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm Wide

DS500053

Features

Note 1: To ensure the high-impedance state during power up or down OE

should be tied to V

resistor is determined by the current-sourcing capability of the driver.

Pin Descriptions

5V tolerant inputs and outputs

2.3V–3.6V V

I/O pull-down resistors terminate inactive busses ensur-

ing a stable bus state

5.5 ns t

Power down high impedance inputs and outputs

Supports live insertion/withdrawal (Note 1)

Implements patented noise/EMI reduction circuitry

Pinout compatible with 74 series 16245

Latch-up performance exceeds 500 mA

ESD performance:

T/R

24 mA output drive (V

Human body model

Machine model

Pin Names

–A

–B

Package Description

max (V

through a pull-up resistor: the minimum value or the

specifications provided

Output Enable Input

Transmit/Receive Input

Side A Inputs or 3-STATE Outputs

Side B Inputs or 3-STATE Outputs

200V

3.3V), 20

2000V

3.0V)

August 1998

Revised June 2005

Description

A I

www.fairchildsemi.com

max

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74LCXP16245_05 Summary of contents

Page 1

Low Voltage 16-Bit Bidirectional Transceiver with 5V Tolerant Inputs/Outputs and Pull-Down Resistors General Description The LCXP16245 contains sixteen non-inverting bidirec- tional buffers with 3-STATE outputs and is intended for bus oriented applications. The device is designed for low volt- ...

Page 2

Connection Diagram Functional Descriptions The LCXP16245 contains sixteen non-inverting bidirec- tional buffers with 3-STATE outputs. the device is byte con- trolled. Each byte has separate control inputs which can be shorted together for full 16-bit operation. The T/R inputs determine ...

Page 3

Absolute Maximum Ratings Symbol Parameter V Supply Voltage Input Voltage Output Voltage Input Diode Current Output Diode Current Output Source/Sink Current Supply ...

Page 4

DC Electrical Characteristics Symbol Parameter ' I Increase in I per Input CC CC Note 5: Outputs disabled or 3-STATE only. AC Electrical Characteristics Symbol Parameter t Propagation Delay PHL PLH n ...

Page 5

AC LOADING and WAVEFORMS FIGURE 1. AC Test Circuit (C t PLH t PZL t PZH Waveform for Inverting and Non-Inverting Functions Propagation Delay. Pulse Width and t rec 3-STATE Output Low Enable and Disable Times for Logic (Input Characteristics; ...

Page 6

Schematic Diagram Generic for LCX Family www.fairchildsemi.com 6 ...

Page 7

Physical Dimensions inches (millimeters) unless otherwise noted 48-Lead Small Shrink Outline Package (SSOP), JEDEC MO-118, 0.300" Wide Package Number MS48A 7 www.fairchildsemi.com ...

Page 8

Physical Dimensions inches (millimeters) unless otherwise noted (Continued) 48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 6.1mm 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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