The NXP Semiconductors MC908KX2CDWER is an 8-bit microcontroller featuring 2KB of FLASH program memory and 192 x 8 RAM. It operates within a voltage range of 2.7V to 5.5V.
The NXP Semiconductors MC9RS08KA8CWGR is an 8-bit microcontroller featuring 8KB of FLASH program memory and 254 bytes of RAM. It operates within a voltage range of 1.8V to 5.5V.
The Freescale Semiconductor MC908KX8MDWE is an 8-bit microcontroller featuring 8KB of FLASH program memory and an 8MHz clock speed. It comes in a 16-SOIC package.