74VCX163245G データシートの表示（PDF） - ON Semiconductor

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74VCX163245G

Low Voltage 16-Bit Dual Supply Translating Transceiver with 3-STATE Outputs

ON Semiconductor 

74VCX163245

Low Voltage 16-Bit Dual Supply Translating

Transceiver with 3-STATE Outputs

May 2007

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Features

■ Bidirectional interface between busses ranging from

1.65V to 3.6V

■ Supports Live Insertion and Withdrawal(1)

■ Static Drive (IOH/IOL)

– ±24mA @ 3.0V VCC

– ±18mA @ 2.3V VCC

– ±6mA @ 1.65V VCC

■ Uses proprietary Quiet Series™ noise/EMI reduction

circuitry

■ Functionally compatible with 74 series 16245

■ Latchup performance exceeds 300mA

■ ESD performance:

– Human Body Model >2000V

– Machine model >200V

■ Also packaged in plastic Fine-Pitch Ball Grid Array

(FBGA)

Note:

1. To ensure the high impedance state during power up

or power down, OEn should be tied to VCCB through a

pull up resistor. The minimum value of the resistor is

determined by the current sourcing capability of the

driver.

General Description

The VCX163245 is a dual supply, 16-bit translating

transceiver that is designed for 2 way asynchronous

communication between busses at different supply volt-

ages by providing true signal translation. The supply rails

consist of VCCA, which is a higher potential rail operating

at 2.3V to 3.6V and VCCB, which is the lower potential

rail operating at 1.65V to 2.7V. (VCCB must be less than

or equal to VCCA for proper device operation). This dual

supply design allows for translation from 1.8V to 2.5V

busses to busses at a higher potential, up to 3.3V.

The Transmit/Receive (T/R) input determines the direc-

tion of data flow. Transmit (active-HIGH) enables data

from A Ports to B Ports; Receive (active-LOW) enables

data from B Ports to A Ports. The Output Enable (OE)

input, when HIGH, disables both A and B Ports by plac-

ing them in a High-Z condition. The A Port interfaces

with the higher voltage bus (2.7V to 3.3V); The B Port

interfaces with the lower voltage bus (1.8V to 2.5V). Also

the VCX163245 is designed so that the control pins

(T/Rn, OEn) are supplied by VCCB.

The 74VCX163245 is suitable for mixed voltage applica-

tions such as notebook computers using a 1.8V CPU and

3.3V peripheral components. It is fabricated with an

Advanced CMOS technology to achieve high speed oper-

ation while maintaining low CMOS power dissipation.

Ordering Information

Order Number

74VCX163245G(2)(3)

74VCX163245MTD(3)

Package Number

Package Description

BGA54A

54-Ball Fine-Pitch Ball Grid Array (FBGA), JEDEC MO-205,

5.5mm Wide

MTD48

48-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC

MO-153, 6.1mm Wide

Notes:

2. Ordering code “G” indicates Trays.

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

Quiet Series™ is a trademark of Fairchild Semiconductor Corporation.

©2000 Fairchild Semiconductor Corporation

74VCX163245 Rev. 1.7

www.fairchildsemi.com

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