Mentioned on the STM site, but no datasheets or any other info.
The STM site search denies all knowledge!

Anybody got any further info?

5V: http://us.st.com/stonline/products/selector/357.htm
UPSD3234A 8032 MCU + 2Mb + 256Kb Flash (5V), PLD, up to 50 I/O, USB
UPSD3233B 8032 MCU + 1Mb + 256Kb Flash (5V), PLD, up to 50 I/O

3V: http://us.st.com/stonline/products/selector/384.htm
UPSD3234BV 8032 MCU + 2Mb + 256Kb Flash (3V), PLD, up to 50 I/O
UPSD3233BV 8032 MCU + 1Mb + 256Kb Flash (3V), PLD, up to 50 I/O