The AT90LS2333-4AI from Microchip Technology is an AVR 90LS 8-bit microcontroller Integrated Circuit running at 4 MHz with 2 KB (1K x 16) flash, in a 32-TQFP (7x7) package.
The AT90LS2333-4PC from Microchip Technology is an AVR 90LS 8-bit microcontroller Integrated Circuit running at 4 MHz with 2 KB (1K x 16) flash memory, in a 28-PDIP package.