74VCX164245
Description
The VCX164245 is a dual supply, 16-bit translating transceiver that is designed for 2 way asynchronous munication between busses at different supply voltages by providing true signal translation. The supply rails consist of VCCB, which is the higher potential rail operating at 2.3 to 3.6V and VCCA, which is the lower potential rail operating at 1.65 to 2.7V.
Key Features
- The A Port interfaces with the lower voltage bus (1.8 - 2.5V); The B Port interfaces with the higher voltage bus (2.7 - 3.3V)
- Also the VCX164245 is designed
- so that the control pins (T/Rn, OEn) are supplied by VCCB
- It is fabricated with an Advanced CMOS technology to achieve high speed operation while maintaining low CMOS power dissipation
- 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
- Specify by appending suffix letter “X” to the ordering code
- © 2000 Fairchild Semiconductor Corporation DS500159 .fairchildsemi
- The VCX164245 is designed so that the control pins (T/Rn, OEn) are supplied by VCCB
- Therefore the first remendation is to begin by powering up the control side of the device, VCCB
