MCF51AC 32-bit MCU, ColdFire V1 core, 256KB Flash, 50MHz, QFP 80
Freescale
Freescale - MCF51AC128ACFGE
Freescale - MCF51AC128AVFGE
Freescale - MCF51AC256ACFGE
Freescale - MCF51AC256AVFGE
Freescale - PCF51AC256ACLH
Freescale - PCF51AC256ACQH