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Level Translators | 74VCX163245

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

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Overview

The VCX163245 is a dual supply, 16-bit translating transceiver that is designed for 2 way asynchronous communication between busses at different supply voltages 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 direction 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 placing 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/R#n, OE#n) are supplied by VCCB. The 74VCX163245 is suitable for mixed voltage applications 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 operation while maintaining low CMOS power dissipation.

  • This product is general usage and suitable for many different applications.
  • Bidirectional interface between busses ranging from 1.65V to 3.6V
  • Supports Live Insertion and Withdrawal (Note 1)
  • Static Drive (IOH/IOL) ±24 mA @ 3.0V VCC ±18 mA @ 2.3V VCC ±6 mA @ 1.65V VCC
  • Uses patented Quiet Seriesâ„¢ noise/EMI reduction circuitry
  • Functionally compatible with 74 series 16245
  • Latchup performance exceeds 300 mA
  • ESD performance: Human Body Model >2000V Machine model >200V
  • Also packaged in plastic Fine-Pitch Ball Grid Array (FBGA)

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74VCX163245MTDX

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CAD Model

Pb

A

H

P

TSSOP-48

948BQ

2

260

REEL

1000

N

16

CMOS

1.65

3.6

5.5

24

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