Parallax RFID, TXB0108, and Raspberry PI

f15radar

I am using a Raspberry Pi with a Parallax RFID reader. The output of the reader is 5 volts, but the PI needs 3.3V. I tried the following but it didn't work:

Parallax RFID VCC - VCB on TXB0108
Parallax RFID Enable - Gnd
Parallax RFID OUT to B1
Parallax RFID Gnd - Gnd
TXB0108 A1 - Raspberry Pi RX
Raspberry Pi 5V to VCB
Raspberry PI 3.3V to VCA

Can anyone help me with the correct hookup for this? Thanks.

Heater.

Quite likely blew the raspi Rx pin if the TX01018 A1 is outputting 5 volts. Or the raspi B1 pin if if RFID out is 5 volts.