| 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 |
| | | | | | | | | | | | | | | | | | | | | |
 | 0065-0151-1 | AT89C4051-24SU | 326 | 66.97 |  | 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 |
 | 0065-0163-1 | AT89C51ED2-SMSUM | 39 | 418.50 | | PB-Free | | 8-Bit MCS-51 MCU Flash 64 KBytes,RAM 2048 Bytes EEPROM 2048 Bytes,60MHz | ATMEL | LCC | 50 | MCS51 | 64K | 2K | 2K | PLCC-68 | Surface Mount | - | 1 UART,1 SPI | 8 | 60MHz |
 | 0065-0168-6 | AT89S52-24PU | 3,710 | 150.10 | | PB-Free | RoHS | 8-Bit MCS-51MCU ISP Flash 8KBytes,RAM 256 Bytes 24MHz | ATMEL | DIP | 32 | MCS51 | 8K | - | 256 | PDIP-40 | Through Hole | - | 1 UART | 8 | 24MHz |
| 0065-0169-9 | AT89S8253-24PU | 169 | 197.50 | | PB-Free | RoHS | 8-Bit MCS-51 MCU Flash 12KBytes,RAM 256 Bytes EEPROM 2KBytes,24MHz | ATMEL | DIP | 32 | MCS51 | 12K | 2K | 256 | PDIP-40 | Through Hole | - | 1 UART,1 SPI | 8 | 24MHz |
 | 0065-0179-3 | AT89LP4052-20PU | 703 | 135.70 | | 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 |
 | 0065-0195-9 | 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 | 1,919 | 87.69 | | 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 |
 | 0065-0201-6 | ATTINY45-20SU | 69 | 62.48 | | PB-Free | RoHS | 8-Bit AVR MCU ISP Flash 4KBytes,RAM 256 Bytes EEPROM 256Bytes,20MHz | ATMEL | SOIC | 6 | AVR | 4K | 256 | 256 | SOIC-8 208-mil | Surface Mount | 10/4 | 1 SPI | 8 | 20MHz |
| 0065-0203-2 | AT89C4051-24PU | 1,129 | 89.02 | | 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 |
 | 0065-0212-3 | AT89C51AC2-RLTUM | 0 | 410.90 | | PB-Free | RoHS | 8-Bit MCS-51 MCU Flash 32KBytes,RAM 1256 Bytes EEPROM 2KBytes,10-Bit A/D with 8 Multiplex Input | ATMEL | QFP | 34 | MCS51 | 32K | 2K | 1.2K | QFP-44 | Surface Mount | 10/8 | 1 UART | 8 | 40MHz |
| 0065-0225-6 | ATMEGA32-16AU | 0 | 368.00 | | PB-Free | RoHS | 8-Bit AVR MCU ISP Flash 32KBytes, RAM 2KBytes, EEPROM 1024 Bytes, Speed 16MHz | ATMEL | QFP | 32 | AVR | 32K | 1K | 2K | TQFP-44 | Surface Mount | 10/8 | 1 USART,1 SPI,1 TWI | 8 | 16MHz |
 | 0065-0226-9 | ATMEGA64L-8AU | 0 | 215.90 | | PB-Free | | 8-Bit AVR MCU ISP Flash 64KBytes,RAM 4KBytes EEPROM 2KBytes,8MHz | ATMEL | QFP | 53 | AVR | 64K | 2K | 4K | TQFP-64 | Surface Mount | 10/8 | 2 USART,1 SPI,1 TWI | 8 | 8MHz |
 | 0065-0238-9 | AT89C51ED2-SLSUM | 103 | 190.90 | | 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 | 10 | 156.80 | | 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 |
| 0065-0241-2 | ATTINY26-16PU | 135 | 116.60 | | PB-Free | | 8-Bit AVR MCU Flash 2KBytes,RAM 128 Bytes EEPROM 128 Bytes,16MHz,10-Bit ADC | ATMEL | DIP | 16 | AVR | 2K | 128 | 128 | PDIP-20 | Through Hole | 10/8 | 1 SPI | 8 | 16MHz |
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