8052 Derivative Microcontrollers Device database courtesy of Keil Software. Acer Labs Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses M6032 @ - 256 256 - 32 - 3.33 3 1 2 - M6759 65536 Flash 256 256 - 32 - 3.33 3 1 2 - Actel Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses Core8051 @ 65536 Flash 256 - - 32 - 0 2 0 2 - Aeroflex UTMC Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses UT69RH051 - 256 - - 32 - 1.66 3 1 1 - Analog Devices Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses ADuC812 8192 Flash 256 - 640 32  SPI 1.33 3 1 1  ISP ADuC814 @ 8192 Flash 256 - 640 11  I2C SPI 1.39 3 1 1  ISP ADuC816 8192 Flash 256 - 640 26  I2C SPI 1.04 3 1 0  ISP ADuC824 8192 Flash 256 - 640 26  I2C SPI 1.04 3 1 1  ISP ADuC831 65536 Flash 256 2048 - 32  SPI 1.33 4 1 2 - ADuC832 65536 Flash 256 2048 - 32  I2C SPI 1.39 3 1 2  IAP ISP ADuC834 65536 Flash 256 2048 4096 32  SPI 1.04 4 1 2  IAP ISP ADuC836 63488 Flash 256 2048 4096 32  SPI 1.04 4 1 2  IAP ISP ADuC841 @ 63488 Flash 256 2048 4096 32  I2C SPI 16.7 3 1 2  IAP ISP ADuC842 63488 Flash 256 2048 4096 32  I2C SPI 20 3 1 2  IAP ISP ADuC843 63488 Flash 256 2048 4096 32  I2C SPI 16.7 3 1 2  IAP ISP ADuC845 63488 Flash 256 2048 4096 26  I2C SPI 12.5 3 1 2  IAP ISP ADuC847 63488 Flash 256 2048 4096 26  I2C SPI 12.5 3 1 2  IAP ISP ADuC848 63488 Flash 256 2048 4096 26  I2C SPI 12.5 3 1 2  IAP ISP Atmel Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses 80C32E - 256 - - 32 - 2.5 3 1 1 - AT48801 - 256 - - 32 - 1.33 3 1 1 - AT83/87C5103 1 OTP 256 256 - 19  SPI 2.66 2 0 1 - AT83/87C5111 1 OTP 256 - - 40  SPI 5.5 2 1 2 - AT83/87C5112 1 OTP 256 - - 21  SPI 5.5 2 1 2 - AT83/89C5132 @ 65536 Flash 256 2048 - 44  SPI USB 1.66 2 1 1  IAP ISP AT87F51 1 OTP 128 - - 32 - 2 2 1 1 - AT87F51RC 1 OTP 256 256 - 32 - 2 3 1 2 - AT87F52 1 OTP 256 - - 32 - 2 3 1 1 - AT87F55WD 1 OTP 256 - - 32 - 2.75 3 1 2 - AT89C1051 1024 Flash 64 - - 15 - 2 1 1 1 - AT89C1051U 1024 Flash 64 - - 15 - 2 2 1 1 - AT89C2051 @ 2048 Flash 128 - - 15 - 2 2 1 1 - AT89C4051 4096 Flash 128 - - 15 - 2 2 1 1 - AT89C51 4096 Flash 128 - - 32 - 2 2 1 1 - AT89C5131 32768 Flash 256 1024 - 34  I2C SPI USB 0 3 1 2  IAP ISP AT89C51CC03 - - - - 0 - 0 0 0 0 - AT89C51ED2 - - - - 0 - 0 0 0 0 - AT89C51IC2 32768 Flash 256 1024 - 32  I2C SPI 3.33 3 1 2  IAP ISP AT89C51ID2 65536 Flash 256 1792 2048 48  SPI 5 3 1 2  ISP AT89C51RC 32768 Flash 256 256 - 32 - 2.75 3 1 2 - AT89C51RC2 - - - - 0 - 0 0 0 0 - AT89C51RD2 - - - - 0 - 0 0 0 0 - AT89C51SND1 65536 Flash 256 2048 - 44  SPI USB 1.66 2 1 1  IAP ISP AT89C52 8192 Flash 256 - - 32 - 2 3 1 1 - AT89C55 20480 Flash 256 - - 32 - 2.75 3 1 1 - AT89C55WD 20480 Flash 256 - - 32 - 2.75 3 1 2 - AT89F51 4096 Flash 128 - - 32 - 1.66 2 1 1 - AT89F52 8192 Flash 256 - - 32 - 1.66 3 1 1 - AT89LS51 4096 Flash 128 - - 32 - 1.33 2 1 2  ISP AT89LS52 8192 Flash 256 - - 32 - 1.33 3 1 2  ISP AT89LS53 12288 Flash 256 - - 32  SPI 1 3 1 2  ISP AT89LS8252 8192 Flash 256 - 2048 32  SPI 1 3 0 2  ISP AT89LV51 4096 Flash 128 - - 32 - 1 2 1 1  ISP AT89LV52 8192 Flash 256 - - 32 - 1 3 1 1  ISP AT89LV55 20480 Flash 256 - - 32 - 1 3 1 1 - AT89S4D12 4096 Flash 256 - 131072 5  SPI 1 3 0 2  ISP AT89S51 4096 Flash 128 - - 32 - 2.75 2 1 2  ISP AT89S52 @ 8192 Flash 128 - - 32 - 2.75 2 1 2  ISP AT89S53 12288 Flash 256 - - 32  SPI 2 3 1 2  ISP AT89S8252 8192 Flash 256 - 2048 32  SPI 2 3 1 2  ISP AT8xC5122 - 256 512 32768 46  SPI USB 8 2 1 2 - T80C31 - 128 - - 32 - 3.66 2 1 1 - T80C31X2 - 128 - - 32 - 5 2 1 2 - T80C32 - 256 - - 32 - 1 3 1 1 - T80C51 - 128 - - 32 - 3.66 2 1 1 - T80C51FP1 1 OTP 256 256 - 56  I2C SPI 2.75 3 1 2 - T80C51I2 1 OTP 256 - - 40  SPI 2.75 2 1 1 - T80C51RA2 - 256 256 - 32 - 5 3 1 2 - T80C51RD2 - 256 768 - 32 - 5 3 1 2 - T80C51U2 - 256 - - 32 - 5 3 2 2 - T83/87C51RB2 1 EPROM 256 256 - 32 - 5 3 1 2 - T83/87C51RC2 1 EPROM 256 256 - 32 - 5 3 1 2 - T83/87C51RD2 1 EPROM 256 768 - 32 - 5 3 1 2 - T83/87C51U2 1 EPROM 256 - - 32 - 5 3 2 2 - T83/87C52X2 - 256 - - 32 - 5 3 1 1 - T83C5101 - 256 256 - 18 - 5.5 3 1 2 - T83C5102 - 256 256 - 18 - 5.5 3 1 2 - T87C51 1 OTP 128 - - 32 - 2.75 2 1 1 - T87C5101 1 OTP 256 256 - 18 - 5.5 3 1 2 - T89C5115 16384 Flash 256 256 2048 20 - 3.33 3 1 2  IAP ISP T89C51AC2 32768 Flash 256 1024 2048 34 - 3.33 3 1 2  IAP ISP T89C51CC01 32768 Flash 256 1024 2048 34  CAN 3.33 3 1 2  IAP ISP T89C51CC02 16384 Flash 256 1024 2048 34  CAN 3.33 3 1 2  IAP ISP T89C51RB2 16384 Flash 256 1024 - 32  SPI 3.33 3 1 2  IAP ISP T89C51RC2 32768 Flash 256 1024 - 32  SPI 3.33 3 1 2  IAP ISP T89C51RD2 65536 Flash 256 1024 2048 32 - 3.33 3 1 2  IAP ISP T8xC5121 - 256 256 16384 14 - 1.33 2 1 2 - TS80C52X2 - 256 - - 32 - 5 3 2 2 - TS80C54X2 - 256 - - 32 - 5 3 1 2 - TS80C58X2 - 256 - - 32 - 5 3 1 2 - Cast, Inc. Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses C8051 Core - 256 - - 32 - 0 3 1 0 - D80530 Core - 256 - - 32 - 0 3 2 2 - R8051 Core - 256 - - 32 - 0 2 1 2 - R80515 Core - 256 - - 32 - 0 3 2 2 - Chipcon Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses CC1010 32768 Flash 128 2048 - 26  SPI 24 4 2 2  IAP ISP CML Microcircuits Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses CMX850 - - 8192 - 35 - 1 2 0 2 - Cybernetic Micro Systems Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses P-51 - 256 - - 32 - 4.25 3 1 2 - CybraTech Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses SOC-4000 - EOL'd 524288 Flash - - 4096 16 - 0 3 2 0 - Cypress Semiconductor Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses EZ-USB (AN21XX) - 256 8192 - 24  I2C USB 2 3 2 2 - EZ-USB FX (CY7C646XX - 256 8192 - 46  I2C USB 4 3 2 2 - EZ-USB FX2 (CY7C68XX - 256 4096 - 40  I2C USB 4 3 2 2 - Daewoo Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses DMC60C51/31 - 128 - - 32 - 1 2 1 1 - DMC60C52/32 - 256 - - 32 - 1.33 3 1 1 - Dallas Semiconductor Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses DS2250 @ - 128 65536 - 32 - 1.33 2 1 1  IAP ISP DS2250T - 128 65536 - 32 - 1.33 2 1 1  IAP ISP DS2251T - 128 131072 - 32 - 1.33 2 1 1  IAP ISP DS2252T - 128 131072 - 32 - 1.33 2 1 1  IAP ISP DS5000 - 128 32768 - 32 - 1.33 2 1 1  IAP ISP DS5000FP - 128 32768 - 32 - 1.33 2 1 1  IAP ISP DS5000T - 128 32768 - 32 - 1.33 2 1 1  IAP ISP DS5001FP - 128 131072 - 32 - 1.33 2 1 1  IAP ISP DS5002FP - 256 131072 - 32 - 1.33 2 1 1  IAP ISP DS5240 - 256 5120 - 38 - 6.25 3 2 2  IAP ISP DS5250 - 256 5120 - 38 - 6.25 3 2 2  IAP ISP DS80C310 - 256 - - 32 - 8.25 3 2 2 - DS80C320 - 256 - - 32 - 8.25 3 2 2 - DS80C323 - 256 - - 32 - 4.5 3 2 2 - DS80C390 - 256 4096 - 32  CAN 10 3 1 2 - DS80C400 - 256 1024 - 64  CAN 75 4 3 4 - DS87C520/DS83C520 1 OTP 256 1024 - 32 - 8.25 3 2 2 - DS87C530 1 OTP 256 1024 - 32 - 8.25 3 2 2 - DS87C550 1 OTP 256 1024 - 55 - 8.25 3 2 2 - DS89C420 @ 16384 Flash 256 1024 - 32 - 33 3 2 2  IAP ISP DS89C430 16384 Flash 256 1024 - 32 - 33 3 2 2  IAP ISP DS89C440 32768 Flash 256 1024 - 32 - 33 3 2 2  IAP ISP DS89C450 65536 Flash 256 1024 - 32 - 33 3 2 2  IAP ISP Domosys Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses PL-One - 256 - - 15 - 3.57 3 1 1 - Evatronix Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses R8051 - 256 - - 32 - 0 2 1 2 - R80515 - 256 - - 32 - 0 3 2 2 - Goal Semiconductor Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses VMX1016 57344 Flash 256 1024 - 32  I2C SPI 14.75 3 2 2 - VMX1020 57344 Flash 256 1024 - 28  I2C SPI 14.75 3 2 2 - VRS1000 65536 Flash 256 768 - 36 - 3.33 3 1 0  IAP ISP VRS1001 65536 Flash 256 1024 - 2  SPI 5 3 2 2 - VRS1001B 65536 Flash 256 1024 - 2  SPI 5 3 2 2 - VRS1050 65536 Flash 256 768 - 36  I2C SPI 0 3 1 0  ISP VRS1100 65536 Flash 256 768 65536 36 - 3.33 3 1 0  IAP ISP VRS540 4096 Flash 128 - - 32 - 3.33 3 1 0 - VRS550 8192 Flash 256 - - 32 - 3.33 3 1 0 - VRS560 16384 Flash 256 - - 32 - 3.33 3 1 0 - VRS570 32768 Flash 256 768 - 36 - 3.33 3 1 0 - VRS580 65536 Flash 256 768 - 36 - 3.33 3 1 0 - VRS700 65536 Flash 256 3840 - 36 - 1.91 3 1 1 - VRS900 8192 Flash 256 - - 36 - 2.08 3 1 0 - Honeywell Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses HT83C51 @ - 256 - - 32 - 1.33 3 1 1 - Hynix Semiconductor Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses GMS90C31 1 EPROM 128 - - 32 - 3.33 2 0 1 - GMS90C32 - 256 - - 32 - 3.33 3 1 1 - GMS90C320 - 256 - - 32 - 4.17 3 1 1 - GMS90C51 1 OTP 128 - - 32 - 3.33 2 1 1 - GMS90C52 1 OTP 256 - - 32 - 3.33 3 1 1 - GMS90C54 1 OTP 256 - - 32 - 2.75 3 1 1 - GMS90C56 1 OTP 256 - - 32 - 2.75 3 1 1 - GMS90C58 1 OTP 256 - - 32 - 2.75 3 1 1 - GMS90L31 1 EPROM 128 - - 32 - 1 2 0 1 - GMS90L32 - 256 - - 32 - 1 3 1 1 - GMS90L320 - 256 - - 32 - 2 3 1 1 - GMS90L51 1 OTP 128 - - 32 - 1 2 1 1 - GMS90L52 1 OTP 256 - - 32 - 1 3 1 1 - GMS90L54 1 OTP 256 - - 32 - 1 3 1 1 - GMS90L56 1 OTP 256 - - 32 - 1 3 1 1 - GMS90L58 1 OTP 256 - - 32 - 1 3 1 1 - GMS97C1051 1 EPROM 64 - - 15 - 2 1 1 1 - GMS97C2051 1 EPROM 128 - - 15 - 2 2 1 1 - GMS97C51 1 EPROM 128 - - 32 - 2 2 1 1 - GMS97C51H 1 EPROM 128 - - 32 - 2.75 2 1 1 - GMS97C52 1 EPROM 256 - - 32 - 2 3 1 1 - GMS97C52H 1 EPROM 256 - - 32 - 2.75 3 1 1 - GMS97C54 1 EPROM 256 - - 32 - 2 3 1 1 - GMS97C54H 1 EPROM 256 - - 32 - 2.75 3 1 1 - GMS97C56 1 EPROM 256 - - 32 - 2 3 1 1 - GMS97C56H 1 EPROM 256 - - 32 - 2.75 3 1 1 - GMS97C58 1 EPROM 256 - - 32 - 2 3 1 1 - GMS97C58H 1 EPROM 256 - - 32 - 2.75 3 1 1 - GMS97L1051 1 EPROM 64 - - 15 - 1 1 1 1 - GMS97L2051 1 EPROM 128 - - 15 - 1 2 1 1 - GMS97L51 1 EPROM 128 - - 32 - 1 2 1 1 - GMS97L52 1 EPROM 256 - - 32 - 1 3 1 1 - GMS97L54 1 EPROM 256 - - 32 - 1 3 1 1 - GMS97L56 1 EPROM 256 - - 32 - 1 3 1 0 - GMS97L58 1 EPROM 256 - - 32 - 1 3 1 1 - HMS91C7432 - 256 12032 - 12 - 2.07 2 1 0 - HMS9xC7132 1 OTP 256 256 - 8  I2C 1.33 3 0 1 - HMS9xC7134 1 EPROM 256 256 - 32  I2C 1 3 1 1 - HMS9xC8032 1 OTP 256 768 - 56 - 0.6 5 1 1 - Infineon Model On-Chip I/O MIPS Timers UART DPTR IAP/ ISP Code IRAM XRAM EEPROM Lines Busses C501 - 256 - - 32 - 3.33 3 0 1 - C501G-1R / -E 1 OTP 256 - - 32 - 3.33 3 0 1 - C501G-L - 256 - - 32 - 3.33 3 0 1 - C504-2R /-2E 1 OTP 256 256 - 32 - 3.33 3 0 1 - C504-L - 256 256 - 32 - 3.33 3 0 1 - C505-2R - 256 256 - 34 - 1.66 3 0 8 - C505-L 1 OTP 256 256 - 46 - 1.66 3 0 8 - C505A-4E 1 OTP 256 1024 - 34 - 1.66 3 0 8 - C505C-2R - 256 256 - 34  CAN 1.66 3 0 8 - C505C-L - - - - 0 - 0 0 0 0 - C505CA-4E @ 1 OTP 256 1024 - 34  CAN 1.66 3 0 8 - C505L-4E - - - - 0 - 0 0 0 0 - C508 1 OTP 256 1024 - 48 - 3.32 3 0 8 - C509-L @ - 256 3072 - 80 - 2.66 5 2 8 - C511-R - 128 - - 32 - 1 2 0 1 - C511A-R - 256 - - 32 - 1 2 0 1 - C513-R - 256 - - 32 - 1 3 1 1 - C513A--2R - 256 256 - 32 - 1 3 1 1 - C513A--L - 256 256 - 32 - 1 3 1 1 - C513A--R - 256 256 - 32  SPI 1 3 1 1 - C513A-H - - - - 0 - 0 0 0 0 - C515-1R - 256 - - 56 - 2 3 0 1 - C515-L - 256 - - 56 - 2 3 0 1 - C515A-4R - 256 1024 - 48 - 2 3 0 1 - C515A-L - 256 1024 - 48 - 2 3 0 1 - C515B-2R - - - - 0 - 0 0 0 0 - C515C-8R / -8E 1 OTP 256 2024 - 57  SPI CAN 1.66 3 0 8 - C515C-L - 256 2024 - 57  SPI CAN 1.66 3 0 8 - C517A-4R - 256 2048 - 56 - 2 4 1 8 - C517A-L - 256 2048 - 56 - 2 4 1 8 - C540U-E 1 OTP 256 - - 32  USB 2 2 0 1 - C541U-2E 1 OTP 256 - - 32  USB 2 2 0 1 - C868 - 256 256 - 13 - 3.33 3 1 8 - SAB 80C515 - 256 - - 56 - 1 3 1 1 - SAB 80C515A - 256 1024 - 56 - 1.5 3 0 1 - SAB 80C517 - 256 - - 68 -