74VCX245 データシートの表示（PDF） - Fairchild Semiconductor

部品番号

コンポーネント説明

メーカー

74VCX245

Low Voltage Bidirectional Transceiver with 3.6V Tolerant Inputs and Outputs

Fairchild Semiconductor 

June 1999

Revised April 2005

74VCX245

Low Voltage Bidirectional Transceiver

with 3.6V Tolerant Inputs and Outputs

General Description

The VCX245 contains eight non-inverting bidirectional buff-

ers with 3-STATE outputs and is intended for bus oriented

applications. The T/R input determines the direction of data

flow. The OE input disables both the A and B ports by plac-

ing them in a high impedance state.

The 74VCX245 is designed for low voltage (1.4V to 3.6V)

VCC applications with I/O compatibility up to 3.6V.

The 74VCX245 is fabricated with an advanced CMOS

technology to achieve high-speed operation while main-

taining low CMOS power dissipation.

Features

s 1.4V to 3.6V VCC supply operation

s 3.6V tolerant inputs and outputs

s Power-off high impedance inputs and outputs

s Supports Live Insertion and Withdrawal (Note 1)

s tPD

3.5 ns max for 3.0V to 3.6V VCC

s Static Drive (IOH/IOL)

r24 mA @ 3.0V VCC

s Uses patented noise/EMI reduction

circuitry

s Latchup performance exceeds 300 mA

s ESD performance:

Human body model ! 2000V

Machine model ! 200V

s Leadless DQFN Pb-Free package

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

down, OEn should be tied to VCC through a pull up resistor. The minimum

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

driver.

Ordering Code:

Order Number

Package

Number

Package Description

74VCX245WM

(Note 2)

M20B

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

74VCX245BQX

(Note 3)

MLP020B Pb-Free 20-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC

MO-241, 2.5 x 4.5mm

74VCX245MTC

(Note 2)

MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

Pb-Free package per JEDEC J-STD-020B.

Note 2: Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.

Note 3: DQFN package available in Tape and Reel only,

Logic Symbol

Pin Descriptions

Pin Names

Description

OE

T/R

A0–A7

B0–B7

Output Enable Input (Active LOW)

Transmit/Receive Input

Side A Inputs or 3-STATE Outputs

Side B Inputs or 3-STATE Outputs

© 2005 Fairchild Semiconductor Corporation DS500167

www.fairchildsemi.com

Share Link: