| Picture | ES Part No. | Part No | Stock | Price | Datasheet | Pb Free | RoHS | Description | Vendor | Case Style | Number of I/O | Core Processor | Program Memory Size (Bytes) | Non-Volatile Memory Size(Bytes-Data EE,Data Flash) | RAM Size (Bytes) | Package / Case | Mounting Type | ADC Bits/Channel | Communication | Core Sizes (Bits) | Max. Speed |
| | | | | | | | | | | | | | | | | | | | | |
 | 0065-0179-3 | AT89LP4052-20PU | 832 | 133.80 |  | PB-Free | | 8-Bit MCS-51 MCU Flash 4KBytes,RAM 256 Bytes,20MHz Low-Power,In System Programmable(ISP) | ATMEL | DIP | 15 | MCS51 | 4K | - | 256 | PDIP-20 | Through Hole | - | 1 UART,1 SPI | 8 | 20MHz |
 | 0065-0188-4 | ATMEGA162-16PU | 1 | 191.90 | | PB-Free | | 8-Bit AVR MCU ISP Flash 16KBytes,RAM 1KBytes EEPROM 512 Bytes,16MHz | ATMEL | DIP | 35 | AVR | 16K | 512 | 1K | PDIP-40 | Through Hole | - | 2 USART,1 SPI | 8 | 16MHz |
 | 0065-0195-9 | AT89S8253-24AU | 3 | 133.00 | | PB-Free | | 8-Bit MCS-51 MCU Flash 12KBytes,RAM 256 Bytes EEPROM 2KBytes, 24MHz | ATMEL | QFP | 32 | MCS51 | 12K | 2K | 256 | TQFP-44 | Surface Mount | - | 1 UART,1 SPI | 8 | 24MHz |
| 0065-0197-5 | AT89C2051-24PU | 3,541 | 85.32 | | PB-Free | | 8-Bit MCS-51 MCU Flash 2KBytes,RAM 128 Bytes,24MHz | ATMEL | DIP | 15 | MCS51 | 2K | - | 128 | PDIP-20 | Through Hole | - | 1 UART | 8 | 24MHz |
 | 0065-0360-2 | AT89C4051-24SU-T | 7 | 56.43 | | PB-Free | | 8-Bit MCS-51 MCU,Flash 4KBytes,RAM 128 Bytes,24MHz | ATMEL | SOIC | 15 | MCS51 | 4K | - | 128 | SOIC-20 | Surface Mount | - | 1 UART | 8 | 24MHz |
 | 0065-0368-8 | AT89C2051-12SU | 530 | 67.03 | | PB-Free | RoHS | 8-Bit MCS-51 MCU Flash 2KBytes,RAM 128 Bytes,12MHz | ATMEL | SOIC | 15 | MCS51 | 2K | - | 128 | SOIC-20 | Surface Mount | - | 1 UART | 8 | 12MHz |
| 0065-0203-2 | AT89C4051-24PU | 2,468 | 95.27 | | PB-Free | | 8-Bit MCS-51 MCU Flash 4KBytes,RAM 128 Bytes,24MHz | ATMEL | DIP | 15 | MCS51 | 4K | - | 128 | PDIP-20 | Through Hole | - | 1 UART | 8 | 24MHz |
| 0065-0377-9 | AT89S8253-24PU-T | 0 | 190.70 | | PB-Free | RoHS | 8-Bit MCS-51 MCU ISP Flash 12KBytes,RAM 256 Bytes EEPROM 2KBytes,Speed 24MHz SPI,UART Interface | ATMEL | DIP | 32 | MCS51 | 12K | 2K | 256 | PDIP-40 | Through Hole | - | 1 UART,1 SPI | 8 | 24MHz |
 | 0065-0238-9 | AT89C51ED2-SLSUM | 119 | 180.60 | | PB-Free | | 8-Bit MCS-51 MCU Flash 64KBytes,RAM 2048 Bytes EEPROM 2048 Bytes,60MHz | ATMEL | LCC | 32 | MCS51 | 64K | 2K | 2K | PLCC-44 | Surface Mount | - | 1 USART,1 SPI | 8 | 60MHz |
| 0065-0239-2 | ATMEGA8515L-8PU | 94 | 135.60 | | PB-Free | | 8-Bit AVR MCU ISP Flash 8KBytes,RAM 512 Bytes EEPROM 512 Bytes,8MHz | ATMEL | DIP | 35 | AVR | 8K | 512 | 512 | PDIP-40 | Through Hole | - | 1 USART,1 SPI | 8 | 8MHz |
| 0065-0243-8 | ATTINY2313-20SU | 1 | 129.30 | | PB-Free | RoHS | 8-Bit AVR MCU ISP Flash 2KBytes,RAM 128 Bytes EEPROM 128 Bytes,20MHz | ATMEL | SOIC | 18 | AVR | 2K | 128 | 128 | SOIC-20 | Surface Mount | - | 1 USART,1 SPI,1 USI | 8 | 20MHz |
| 0065-0247-0 | AT89S51-24PU | 1,171 | 128.30 | | PB-Free | | 8-Bit MCS-51 MCU ISP Flash 4KBytes,RAM 128Bytes 24MHz | ATMEL | DIP | 32 | MCS51 | 4K | - | 128 | PDIP-40 | Through Hole | - | 1 UART | 8 | 24MHz |
| 0065-0251-6 | AT89C51RC-24PU | 317 | 251.40 | | PB-Free | | 8-Bit MCS-51 MCU Flash 32KBytes,RAM 512Bytes,24MHz | ATMEL | DIP | 32 | MCS51 | 32K | - | 512 | PDIP-40 | Through Hole | - | 1 UART | 8 | 24MHz |
| 1522-0092-6 | AT89S52-24PU | 1,339 | 147.50 | | PB-Free | RoHS | 8-Bit MCS-51 MCU, Flash 8KBytes, 256Bytes, Speed 24MHz | MICROCHIP | DIP | 32 | MCS51 | 8K | - | 256 | PDIP-40 | Through Hole | - | 1 UART | 8 | 24MHz |
| 1522-0039-2 | AT89S8253-24PU | 0 | 252.10 | | PB-Free | RoHS | 8-Bit MCS-51 MCU Flash 12KBytes, RAM 256 Bytes EEPROM 2KBytes, 24MHz | MICROCHIP | DIP | 32 | MCS51 | 12K | 2K | 256 | PDIP-40 | Through Hole | - | 1 UART,1 SPI | 8 | 24MHz |
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