Atmel AT89C2051 @20SO ; Atmel AT89C4051 @20SO ; Freescale MC68HC705P6 @28SO ; MEGAWIN MG87FE2051A @20SO ; MEGAWIN MG87FE4051A @20SO ; MEGAWIN MG87FE6051A @20SO ; MEGAWIN MG87FL2051A @20SO ; MEGAWIN MG87FL4051A @20SO ; MEGAWIN MG87FL6051A @20SO ; MEGAWIN MPC82E52A @20SO ; MEGAWIN MPC82E54A @20SO ; MEGAWIN MPC82E54A @28SO ; MEGAWIN MPC82L52A @20SO ; MEGAWIN MPC82L54A @20SO ; MEGAWIN MPC82L54A @28SO ; Nuvoton W79E2051 @20SO ; Nuvoton W79E4051 @20SO ; SyncMos SM39R2051 @20SO ; SyncMos SM39R4051 @20SO ; SyncMos SM894051 @20SO ; Winbond W79E2051 @20SO ; Winbond W79E4051 @20SO ;