MCS-51

AMD

D8031AH
	12 MHz 40 pin CERDIP

IP8031AH
	12 MHz 40 pin PDIP

P8031AH
	12 MHz 40 pin PDIP

N80C31BH
	12 MHz 4w pin PLCC

P8051AH-40196
	12 MHz 40 pin PDIP

AMD8751H
	12 MHz 40 pin PDIP

D87C521-1
	12 MHz 40 pin CDIP

ATMEL

80C31X2-UL
	MHz 40 pin PDIP

80C32X2-UM
	MHz 40 pin PDIP

CIC

CIC8035E
	MHz 40 pin PDIP

 

Dallas Semiconductor

DS80C320
	MHz 44 pin PLCC

INTEL

D8031AH
	12 MHz 40 pin CERDIP

N8031AH
	12 MHz 44 pin PLCC

N80C31BH
	? MHz 44 pin PLCC

P8031AH
	12 MHz 40 pin PDIP

P80C31BH
	12 MHz 40 pin PDIP

LD8031AH
	12 MHz 40 pin CERDIP

TN80C31BH
	12 MHz 44 pin PLCC

P80C32
	MHz 40 pin PDIP

P8032AH
	12 MHz 40 pin PDIP

TP80C32
	12 MHz 40 pin PDIP

C8035
	12 MHz 40 pin PDIP

P8051
	12 MHz 40 pin PDIP

P8051AH
	12 MHz 40 pin PDIP

P80C51BH
	12 MHz 40 pin PDIP

TD87C51
	12 MHz 40 pin CERDIP

TN80C51FA1
	12 MHz 44 pin PLCC

P80A52AH
	12 MHz 40 pin PDIP

LN80C152JB
	12 MHz 68 pin PLCC

C8751
	12 MHz 40 pin CERDIP

C8751-8
	?MHz 40 pin CERDIP

C8751H
	12 MHz 40 pin CERDIP

C8751H-8
	12 MHz 40 pin CERDIP

C8751H-12
	12 MHz 40 pin CERDIP

QC8751H
	12 MHz 40 pin CERDIP

D8751H
	12 MHz 40 pin CERDIP

R8751H
	12 MHz 44 pin CLCC

P87C51-1
	12 MHz 40 pin PDIP

MHS

P-80C31
	MHz 40 pin PDIP

P-80C31-12
	MHz 40 pin PDIP

P-80C31AH
	MHz 40 pin PDIP

P-80C31-V
	MHz 40 pin PDIP

S-80C31
	12 MHz 44 pin PLCC

P-8032AH
	MHz 40 pin PDIP

P-80C32
	MHz 40 pin PDIP

Q-80C52683
	12 MHz 44 pin CLCC

OKI

M80C31F
	12 MHz 40 pin PDIP

M80C31F
	12 MHz 44 pin PLCC

M80C51
	12 MHz 40 pin CDIP

M85C154
	12 MHz 40 pin CDIP

 

Philips

MAB 8031AH 15P
	MHz 40 pin PDIP

MAB 8031AH-2 12P
	MHz 40 pin PDIP

PC80C31BH-3-16P
	MHz 40 pin PDIP

PCF80C31-3-12WP
	12 MHz 44 pin PLCC

MAB8051AH
	MHz 40 pin PDIP

SC80C51BCCN40
	MHz 40 pin PDIP

P87C52UBPN
	33 MHz 40 pin PDIP low voltage 2.7V.5.5V, low power, high speed 33 MHz

P89C51RD+JB
	12 MHz PQFP 44

Russian

KP1816BE31
	MHz 40 pin PDIP Intel 8031AH clone Manufactured by Electronica

KP1816BE51
	MHz 40 pin PDIP Intel 8051AH clone Manufactured by Electronica

KP1830BE31
	MHz 40 pin PDIP Intel 80C31 clone Manufactured by Electronica

TEMIC

TS80C31-12CA
	MHz 40 pin PDIP

P-80C52CQR-12
	MHz 40 pin PDIP

SIEMENS

SAB8031P T40-85
	MHz 40 pin PDIP

SAB8032A-16-P
	MHz 40 pin PDIP

SAB80535N T40/85
	MHz 68 pin PLCC

SIGNETICS

SCN8031HCCN40
	MHz 40 pin PDIP

SCN8032HCCN40
	MHz 40 pin PDIP

P80C32IBAA
	MHz 44 pin PLCC

SCN808051H
	MHz 40 pin PDIP

Windbond

W78C32B-24
	MHz 40 pin PDIP Compatible with 80C32

W78C32C-24
	MHz 40 pin PDIP Compatible with 80C32