MICROCHIP TECHNOLOGY 8051 microcontrollers
| Type of integrated circuit | microcontroller 8051 |
| Kind of core | 8-bit |
| Symbol | Manufacturer's part number | Number of inputs/outputs | Interface | Number of 10bit A/D converters | Case | Family | Memory | Part status | Package |
|---|---|---|---|---|---|---|---|---|---|
| [B] | |||||||||
| AT80C51RD2-3CSUM | AT80C51RD2-3CSUM | 32 | LIN; SPI; UART | - | DIP40 | AT80 | 256 SRAM | - | tube |
| AT80C51RD2-SLRUM | AT80C51RD2-SLRUM | 32 | SPI; UART | - | PLCC44 | AT80 | 1.28k SRAM | - | reel, tape |
| AT80C51RD2-SLSUM | AT80C51RD2-SLSUM | 32 | LIN; SPI; UART | - | PLCC44 | AT80 | 256 SRAM | - | tube |
| AT89C2051-12PU | AT89C2051-12PU | 15 | UART | - | DIP20 | AT89 | 128 SRAM 2k FLASH | - | tube |
| AT89C2051-12SU | AT89C2051-12SU | 15 | UART | - | SO20 | AT89 | 128 SRAM 2k FLASH | - | tube |
| AT89C2051-24PU | AT89C2051-24PU | 15 | UART | DIP20 | AT89 | 128 SRAM 2k FLASH | - | tube | |
| AT89C2051-24SU | AT89C2051-24SU | 15 | UART | SO20 | AT89 | 128 SRAM 2k FLASH | - | tube | |
| AT89C4051-12PU | AT89C4051-12PU | 15 | UART | - | DIP20 | AT89 | 128 SRAM 1.28k SRAM 4k FLASH | Obsolete | tube |
| AT89C4051-12SU | AT89C4051-12SU | 15 | UART | - | SO20 | AT89 | 128 SRAM 4k FLASH | - | tube |
| AT89C4051-24PU | AT89C4051-24PU | 15 | UART | DIP20 | AT89 | 128 SRAM 4k FLASH | - | tube | |
| AT89C4051-24SU | AT89C4051-24SU | 15 | UART | SO20 | AT89 | 128 SRAM 4k FLASH | - | tube | |
| AT89C5115-RATUM | AT89C5115-RATUM | 20 | UART | - | VQFP32 | AT89 | 512 SRAM 2k EEPROM 16k FLASH | - | in-tray |
| AT89C5115-SISUM | AT89C5115-SISUM | - | - | - | PLCC28 | AT89 | 16k FLASH | - | tube |
| AT89C5115-TISUM | AT89C5115-TISUM | 20 | UART | 1 | SO28 | AT89 | 512 SRAM 2k EEPROM 16k FLASH | - | tube |
| AT89C5130A-PUTUM | AT89C5130A-PUTUM | 34 | I2C; SPI; UART; USB | - | QFN32 | AT89 | 1k EEPROM 1.28k SRAM 16k FLASH | - | in-tray |
| AT89C5130A-RDRUM | AT89C5130A-RDRUM | 34 | I2C; SPI; UART; USB | - | LQFP64 | AT89 | 1k EEPROM 1.28k SRAM 16k FLASH | - | reel, tape |
| AT89C5130A-RDTUM | AT89C5130A-RDTUM | 34 | I2C; SPI; UART; USB | - | VQFP64 | AT89 | 1k EEPROM 1.28k SRAM 16k FLASH | - | in-tray |
| AT89C5131A-PUTUM | AT89C5131A-PUTUM | 34 | I2C; SPI; UART; USB | - | QFN32 | AT89 | 1k EEPROM 1.28k SRAM 32k FLASH | - | in-tray |
| AT89C5131A-RDTUL | AT89C5131A-RDTUL | 34 | I2C; SPI; UART; USB | - | VQFP64 | AT89 | 1k EEPROM 1.28k SRAM 32k FLASH | - | in-tray |
| AT89C5131A-RDTUM | AT89C5131A-RDTUM | 18 | I2C; SPI; UART | - | VQFN32 | AT89 | 256 SRAM 32k FLASH | - | in-tray |
| AT89C5131A-TIRUL | AT89C5131A-TIRUL | 34 | I2C; SPI; UART; USB | - | SO28 | AT89 | 1k EEPROM 1.28k SRAM 32k FLASH | - | reel, tape |
| AT89C5131A-TISUL | AT89C5131A-TISUL | 34 | I2C; SPI; UART; USB | - | SO28 | AT89 | 1k EEPROM 1.28k SRAM 32k FLASH | - | tube |
| AT89C51AC2-SLSU | AT89C51AC2-SLSUM | 34 | UART | 8 | PLCC44 | AT89 | 1.28k SRAM 2k EEPROM 32k FLASH | - | tube |
| AT89C51AC3-RDTU | AT89C51AC3-RDTUM | - | - | - | VQFP64 | AT89 | 64k FLASH | - | in-tray |
| AT89C51AC3-SLSUM | AT89C51AC3-SLSUM | 36 | SPI; UART | 1 | PLCC44 | AT89 | 2k EEPROM 2.25k SRAM 64k FLASH | - | tube |
| AT89C51AC3T-RLTUM | AT89C51AC3T-RLTUM | - | SPI; UART | - | LQFP44 | AT89 | 2 SRAM 2k EEPROM 64k FLASH | - | in-tray |
| AT89C51CC01CA-SLS | AT89C51CC01CA-SLSUM | 34 | CAN 2.0A; CAN 2.0B; UART | 1 | PLCC44 | AT89 | 1.28k SRAM 2k EEPROM 32k FLASH | - | tube |
| AT89C51CC01CAT-RLT | AT89C51CC01CAT-RLTUM | 32 | CAN; USART | 1 | VQFP44 | AT89 | 265 SRAM 2k EEPROM 32k FLASH | - | in-tray |
| AT89C51CC01UA-SLSU | AT89C51CC01UA-SLSUM | 34 | CAN 2.0A; CAN 2.0B; UART | 8 | PLCC44 | AT89 | 256 SRAM 2k EEPROM 32k FLASH | - | tube |
| AT89C51CC01UAT-RLT | AT89C51CC01UAT-RLTUM | - | CAN; UART | - | LQFP44 | AT89 | 2k EEPROM 32k FLASH | - | in-tray |
| AT89C51CC02CA-RAT | AT89C51CC02CA-RATUM | 20 | CAN 2.0A; CAN 2.0B; UART | 1 | VQFP32 | AT89 | 512 SRAM 2k EEPROM 16k FLASH | - | in-tray |
| AT89C51CC02CA-SIS | AT89C51CC02CA-SISUM | 20 | CAN 2.0A; CAN 2.0B; UART | 1 | PLCC28 | AT89 | 512 SRAM 2k EEPROM 16k FLASH | - | tube |
| AT89C51CC02CTIS | AT89C51CC02CA-TISUM | - | - | - | SO28 | AT89 | 16k FLASH | - | tube |
| AT89C51CC02UA-RAT | AT89C51CC02UA-RATUM | 20 | CAN 2.0A; CAN 2.0B; UART | 1 | VQFP32 | AT89 | 512 SRAM 2k EEPROM 16k FLASH | - | in-tray |
| AT89C51CC02UA-SIS | AT89C51CC02UA-SISUM | 20 | CAN 2.0A; CAN 2.0B; UART | 1 | PLCC28 | AT89 | 512 SRAM 2k EEPROM 16k FLASH | - | tube |
| AT89C51CC02UA-TIS | AT89C51CC02UA-TISUM | 20 | CAN 2.0A; CAN 2.0B; UART | 1 | SO28 | AT89 | 512 SRAM 2k EEPROM 16k FLASH | - | tube |
| AT89C51CC03CA-RDT | AT89C51CC03CA-RDTUM | 36 | CAN 2.0A; CAN 2.0B; SPI; UART | 1 | VQFP64 | AT89 | 2k EEPROM 2.25k SRAM 64k FLASH | - | in-tray |
| AT89C51CC03CA-SLR | AT89C51CC03CA-SLRUM | 36 | CAN 2.0A; CAN 2.0B; SPI; UART | 1 | PLCC44 | AT89 | 2k EEPROM 2.25k SRAM 64k FLASH | - | reel, tape |
| AT89C51CC03CA-SLS | AT89C51CC03CA-SLSUM | 36 | CAN 2.0A; CAN 2.0B; SPI; UART | 1 | PLCC44 | AT89 | 2k EEPROM 2.25k SRAM 64k FLASH | - | tube |
| AT89C51CC03UA-RDTU | AT89C51CC03UA-RDTUM | - | CAN 2.0A; CAN 2.0B; SPI; UART | 8 | VQFP64 | AT89 | 2k EEPROM 2.25k SRAM 64k FLASH | - | in-tray |
| AT89C51CC03UA-SLSU | AT89C51CC03UA-SLSUM | - | CAN 2.0A; CAN 2.0B; SPI; UART | 8 | PLCC44 | AT89 | 2k EEPROM 2.25k SRAM 64k FLASH | - | tube |
| AT89C51CC03UAT-RLT | AT89C51CC03UAT-RLTUM | - | CAN; SPI; USART | - | LQFP44 | AT89 | 2k EEPROM 64k FLASH | - | in-tray |
| AT89C51ED2-RDRUM | AT89C51ED2-RDRUM | 32 | SPI; UART | - | LQFP64 | AT89 | 2k EEPROM 2k SRAM 64k FLASH | - | reel, tape |
| AT89C51ED2-RDTU | AT89C51ED2-RDTUM | 50 | SPI; UART | VQFP64 | AT89 | 2k EEPROM 2k SRAM 64k FLASH | - | in-tray | |
| AT89C51ED2-SLRUM | AT89C51ED2-SLRUM | 32 | SPI; UART | - | PLCC44 | AT89 | 2k EEPROM 2k SRAM 64k FLASH | - | reel, tape |
| AT89C51ED2-SLSUM | AT89C51ED2-SLSUM | 50 | SPI; UART | - | PLCC44 | AT89 | 2k EEPROM 2k SRAM 64k FLASH | - | tube |
| AT89C51ED2-SMSU | AT89C51ED2-SMSUM | 50 | SPI; UART | PLCC68 | AT89 | 2k EEPROM 2k SRAM 64k FLASH | - | tube | |
| AT89C51ED2T-RLTUM | AT89C51ED2T-RLTUM | - | SPI; UART | - | TQFP44 | AT89 | 2 SRAM 2k EEPROM 64k FLASH | - | in-tray |
| AT89C51IC2-SLRUL | AT89C51IC2-SLRUL | 34 | I2C; SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 32k FLASH | - | reel, tape |
| AT89C51IC2-SLRUM | AT89C51IC2-SLRUM | 34 | I2C; SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 32k FLASH | - | reel, tape |
| AT89C51IC2-SLSUL | AT89C51IC2-SLSUL | 34 | I2C; SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 32k FLASH | - | tube |
| AT89C51IC2-SLSUM | AT89C51IC2-SLSUM | 34 | I2C; SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 32k FLASH | - | tube |
| AT89C51ID2-SLRUM | AT89C51ID2-SLRUM | 34 | I2C; SPI; UART | - | PLCC44 | AT89 | 2k EEPROM 2k SRAM 64k FLASH | - | reel, tape |
| AT89C51ID2-SLSUM | AT89C51ID2-SLSUM | 34 | I2C; SPI; UART | - | PLCC44 | AT89 | 2k EEPROM 2k SRAM 64k FLASH | - | tube |
| AT89C51RB2-3CSUL | AT89C51RB2-3CSUL | 32 | SPI; UART | - | DIP40 | AT89 | 1.28k SRAM 16k FLASH | - | tube |
| AT89C51RB23CSUM | AT89C51RB2-3CSUM | 32 | SPI; UART | DIP40 | AT89 | 1.28k SRAM 16k FLASH | - | tube | |
| AT89C51RB2-SLRUL | AT89C51RB2-SLRUL | 32 | SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 16k FLASH | - | reel, tape |
| AT89C51RB2-SLRUM | AT89C51RB2-SLRUM | 32 | SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 16k FLASH | - | reel, tape |
| AT89C51RB2-SLSUL | AT89C51RB2-SLSUL | 32 | SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 16k FLASH | - | tube |
| AT89C51RB2-SLSUM | AT89C51RB2-SLSUM | 32 | SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 16k FLASH | - | tube |
| AT89C51RB2T-RLTUM | AT89C51RB2T-RLTUM | 32 | SPI; USART | - | VQFP44 | AT89 | 1k SRAM 16k FLASH | - | in-tray |
| AT89C51RC2-3CSUM | AT89C51RC2-3CSUM | 32 | SPI; UART | - | DIP40 | AT89 | 1.28k SRAM 32k FLASH | - | tube |
| AT89C51RC-24AU | AT89C51RC-24AU | 32 | UART | - | TQFP44 | AT89 | 512 SRAM 32k FLASH | - | in-tray |
| AT89C51RC-24PU | AT89C51RC-24PU | 32 | UART | - | DIP40 | AT89 | 512 SRAM 32k FLASH | - | tube |
| AT89C51RC2-SLRUL | AT89C51RC2-SLRUL | 32 | SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 32k FLASH | - | reel, tape |
| AT89C51RC2-SLRUM | AT89C51RC2-SLRUM | 32 | SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 32k FLASH | - | reel, tape |
| AT89C51RC2-SLSUL | AT89C51RC2-SLSUL | 32 | SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 32k FLASH | - | tube |
| AT89C51RC2-SLSUM | AT89C51RC2-SLSUM | 32 | SPI; UART | - | PLCC44 | AT89 | 1.28k SRAM 32k FLASH | - | tube |
| AT89C51RC2T-RLTUM | AT89C51RC2T-RLTUM | 32 | SPI; USART | - | VQFP44 | AT89 | 1k SRAM 32k FLASH | - | in-tray |
| AT89C51RD2-SLRUM | AT89C51RD2-SLRUM | 32 | SPI; UART | - | PLCC44 | AT89 | 2k SRAM 64k FLASH | - | reel, tape |
| AT89C51RD2-SLSUM | AT89C51RD2-SLSUM | 32 | SPI; UART | - | PLCC44 | AT89 | 2k SRAM 64k FLASH | - | tube |
| AT89C51RD2T-RLTUM | AT89C51RD2T-RLTUM | - | SPI; UART | - | LQFP44 | AT89 | 2 SRAM 64k FLASH | - | in-tray |
| AT89C55WD-24AU | AT89C55WD-24AU | 32 | UART | - | TQFP44 | AT89 | 256 SRAM 20k FLASH | - | in-tray |
| AT89C55WD-24JU | AT89C55WD-24JU | 32 | UART | PLCC44 | AT89 | 256 SRAM 20k FLASH | - | tube | |
| AT89C55WD-24PU | AT89C55WD-24PU | 32 | UART | DIP40 | AT89 | 256 SRAM 20k FLASH | - | tube | |
| AT89LP2052-20PU | AT89LP2052-20PU | 15 | SPI; UART | - | DIP20 | AT89 | 256 SRAM 2k FLASH | - | tube |
| AT89LP2052-20XU | AT89LP2052-20XU | 15 | SPI; UART | - | TSSOP20 | AT89 | 256 SRAM 2k FLASH | - | tube |
| AT89LP3240-20AU | AT89LP3240-20AU | 38 | I2C; SPI; UART | 1 | TQFP44 | AT89 | 4.25k SRAM 8k EEPROM 32k FLASH | - | in-tray |
| AT89LP3240-20MU | AT89LP3240-20MU | 38 | I2C; SPI; UART | 1 | VQFN44 | AT89 | 4.25k SRAM 8k EEPROM 32k FLASH | - | in-tray |
| AT89LP4052-20PU | AT89LP4052-20PU | 15 | SPI; UART | - | DIP20 | AT89 | 256 SRAM 4k FLASH | - | tube |
| AT89LP4052-20SU | AT89LP4052-20SU | 15 | SPI; UART | - | SO20 | AT89 | 256 SRAM 4k FLASH | - | tube |
| AT89LP4052-20XU | AT89LP4052-20XU | 15 | SPI; UART | - | TSSOP20 | AT89 | 256 SRAM 4k FLASH | - | tube |
| AT89LP51-20AU | AT89LP51-20AU | 36 | UART | - | TQFP44 | AT89 | 256 EEPROM 256 SRAM 4k FLASH | - | in-tray |
| AT89LP51-20MU | AT89LP51-20MU | 36 | UART | - | VQFN44 | AT89 | 256 EEPROM 256 SRAM 4k FLASH | - | in-tray |
| AT89LP51ED2-20AAU | AT89LP51ED2-20AAU | 42 | I2C; SPI; UART | 7 | LQFP44 | AT89 | 2.25k SRAM 4k EEPROM 64k FLASH | - | in-tray |
| AT89LP51ED2-20AU | AT89LP51ED2-20AU | 40 | I2C; SPI; UART | - | TQFP44 | AT89 | 2.25k SRAM 4k EEPROM 64k FLASH | - | in-tray |
| AT89LP51ED2-20JU | AT89LP51ED2-20JU | 40 | I2C; SPI; UART | - | PLCC44 | AT89 | 2.25k SRAM 4k EEPROM 64k FLASH | - | tube |
| AT89LP51ED2-20MU | AT89LP51ED2-20MU | 40 | I2C; SPI; UART | - | VQFN44 | AT89 | 2.25k SRAM 4k EEPROM 64k FLASH | - | in-tray |
| AT89LP51ED2-20PU | AT89LP51ED2-20PU | 40 | I2C; SPI; UART | - | DIP40 | AT89 | 2.25k SRAM 4k EEPROM 64k FLASH | - | tube |
| AT89LP51IC2-20AAU | AT89LP51IC2-20AAU | 40 | I2C; SPI; UART | - | LQFP44 | AT89 | 1408 SRAM 32k FLASH | - | in-tray |
| AT89LP51IC2-20MU | AT89LP51IC2-20MU | 40 | I2C; SPI; UART | - | VQFN44 | AT89 | 1408 SRAM 32k FLASH | - | in-tray |
| AT89LP51ID2-20AAU | AT89LP51ID2-20AAU | 40 | I2C; SPI; UART | - | LQFP44 | AT89 | 2.25k SRAM 4k EEPROM 64k FLASH | - | in-tray |
| AT89LP51ID2-20AU | AT89LP51ID2-20AU | 40 | I2C; SPI; UART | - | TQFP44 | AT89 | 2.25k SRAM 4k EEPROM 64k FLASH | - | in-tray |
| AT89LP51ID2-20MU | AT89LP51ID2-20MU | 40 | I2C; SPI; UART | - | VQFN44 | AT89 | 2.25k SRAM 4k EEPROM 64k FLASH | - | in-tray |
| AT89LP51RB2-20AAU | AT89LP51RB2-20AAU | 40 | I2C; SPI; UART | - | LQFP44 | AT89 | 1408 SRAM 24k FLASH | - | in-tray |
| AT89LP51RB2-20AU | AT89LP51RB2-20AU | 40 | I2C; SPI; UART | - | TQFP44 | AT89 | 1408 SRAM 24k FLASH | - | in-tray |
| AT89LP51RB2-20JU | AT89LP51RB2-20JU | 40 | I2C; SPI; UART | - | PLCC44 | AT89 | 1408 SRAM 24k FLASH | - | tube |
| AT89LP51RB2-20MU | AT89LP51RB2-20MU | 40 | I2C; SPI; UART | - | VQFN44 | AT89 | 1408 SRAM 24k FLASH | - | in-tray |
| AT89LP51RC2-20AAU | AT89LP51RC2-20AAU | 40 | I2C; SPI; UART | - | LQFP44 | AT89 | 1408 SRAM 32k FLASH | - | in-tray |
| AT89LP51RC2-20JU | AT89LP51RC2-20JU | 40 | I2C; SPI; UART | - | PLCC44 | AT89 | 1408 SRAM 32k FLASH | - | tube |
| AT89LP51RC2-20MU | AT89LP51RC2-20MU | 40 | I2C; SPI; UART | - | VQFN44 | AT89 | 1408 SRAM 32k FLASH | - | in-tray |
| AT89LP51RD2-20AAU | AT89LP51RD2-20AAU | 40 | UART | - | LQFP44 | AT89 | 2.25k SRAM 64k FLASH | - | in-tray |
| AT89LP51RD2-20AU | AT89LP51RD2-20AU | 40 | UART | - | TQFP44 | AT89 | 2.25k SRAM 64k FLASH | - | in-tray |
| AT89LP51RD2-20JU | AT89LP51RD2-20JU | 40 | UART | - | PLCC44 | AT89 | 2.25k SRAM 64k FLASH | - | tube |
| AT89LP51RD2-20MU | AT89LP51RD2-20MU | 40 | UART | - | VQFN44 | AT89 | 2.25k SRAM 64k FLASH | - | in-tray |
| AT89LP51RD2-20PU | AT89LP51RD2-20PU | 40 | UART | - | DIP40 | AT89 | 2.25k SRAM 64k FLASH | - | tube |
| AT89LP52-20AU | AT89LP52-20AU | 36 | UART | - | TQFP44 | AT89 | 256 EEPROM 256 SRAM 8k FLASH | - | in-tray |
| AT89LP52-20JU | AT89LP52-20JU | 36 | UART | - | PLCC44 | AT89 | 256 EEPROM 256 SRAM 8k FLASH | - | tube |
| AT89LP52-20MU | AT89LP52-20MU | 36 | UART | - | VQFN44 | AT89 | 256 EEPROM 256 SRAM 8k FLASH | - | in-tray |
| AT89LP52-20PU | AT89LP52-20PU | 36 | UART | - | DIP44 | AT89 | 256 EEPROM 256 SRAM 8k FLASH 8k SRAM | - | tube |
| AT89LP6440-20AU | AT89LP6440-20AU | 38 | I2C; SPI; UART | 8 | TQFP44 | AT89 | 4.25k SRAM 8k EEPROM 64k FLASH | - | in-tray |
| AT89LP6440-20MU | AT89LP6440-20MU | 38 | I2C; SPI; UART | 8 | VQFN40 | AT89 | 4.25k SRAM 8k EEPROM 64k FLASH | - | in-tray |
| AT89LP6440-20PU | AT89LP6440-20PU | 38 | I2C; SPI; UART | 8 | DIP40 | AT89 | 4.25k SRAM 8k EEPROM 64k FLASH | - | tube |
| AT89LS51-16AU | AT89LS51-16AU | 32 | UART | - | TQFP44 | AT89 | 128 SRAM 4k FLASH | - | in-tray |
| AT89LS52-16AU | AT89LS52-16AU | 32 | UART | - | TQFP44 | AT89 | 256 SRAM 8k FLASH | - | in-tray |
| AT89LS52-16AUR | AT89LS52-16AUR | 32 | UART | - | TQFP44 | AT89 | 256 SRAM 8k FLASH | - | reel, tape |
| AT89LS52-16JU | AT89LS52-16JU | 32 | UART | - | PLCC44 | AT89 | 256 SRAM 8k FLASH | - | tube |
| AT89LS52-16PU | AT89LS52-16PU | 32 | UART | - | DIP40 | AT89 | 256 SRAM 8k FLASH | - | tube |
| AT89S51-24AU | AT89S51-24AU | 32 | UART | TQFP44 | AT89 | 128 SRAM 4k FLASH | - | in-tray | |
| AT89S51-24JU | AT89S51-24JU | 32 | UART | PLCC44 | AT89 | 128 SRAM 4k FLASH | - | tube | |
| AT89S51-24PU | AT89S51-24PU | 32 | UART | DIP40 | AT89 | 128 SRAM 4k FLASH | - | tube | |
| AT89S52-24AU | AT89S52-24AU | 32 | UART | TQFP44 | AT89 | 256 SRAM 8k FLASH | - | in-tray | |
| AT89S52-24AUR | AT89S52-24AUR | 32 | UART | - | TQFP44 | AT89 | 256 SRAM 8k FLASH | - | reel, tape |
| AT89S52-24JU | AT89S52-24JU | 32 | UART | PLCC44 | AT89 | 256 SRAM 8k FLASH | - | tube | |
| AT89S52-24PU | AT89S52-24PU | 32 | UART | DIP40 | AT89 | 256 SRAM 8k FLASH | - | tube | |
| AT89S8253-24AU | AT89S8253-24AU | 32 | SPI; UART | TQFP44 | AT89 | 256 SRAM 2k EEPROM 12k FLASH | - | in-tray | |
| AT89S8253-24JU | AT89S8253-24JU | 32 | SPI; UART | PLCC44 | AT89 | 256 SRAM 2k EEPROM 12k FLASH | - | tube | |
| AT89S8253-24PU | AT89S8253-24PU | 32 | SPI; UART | DIP40 | AT89 | 256 SRAM 2k EEPROM 12k FLASH | - | tube |
