| 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 |
| | | | | | | | | | | | | | | | | | | | | |
 | 0065-0368-8 | 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 |
 | 0065-0373-1 | ATMEGA16A-PU-T | 0 | 197.60 | | PB-Free | RoHS | 8-Bit AVR MCU ISP Flash 16KBytes,RAM 1KBytes EEPROM 512 Bytes,Speed 16MHz,JTAG Interface Power-on Reset,Programmable Brown-out Detection | ATMEL | DIP | 32 | AVR | 16K | 512 | 1K | PDIP-40 | Through Hole | 10/8 | 1 USART,1 SPI,1 TWI | 8 | 16MHz |
 | 0065-0376-7 | ATMEGA88PA-AU-T | 0 | 233.20 | | PB-Free | RoHS | 8-Bit AVR MCU Flash 8KBytes,RAM 1KBytes EEPROM 512 Bytes,Speed 20MHz,8-Ch/10-Bit ADC picoPower | ATMEL | QFP | 23 | AVR | 8K | 512 | 1K | TQFP-32 | Surface Mount | 10/8 | 1 USART,2 SPI,1 TWI | 8 | 20MHz |
| 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 |
| 0065-0380-8 | ATMEGA168PA-AU-T | 0 | 153.20 | | PB-Free | RoHS | 8-Bit AVR MCU ISP Flash 16KBytes,RAM 1KBytes EEPROM 512 Bytes,20MHz, 8-Ch/10-Bit ADC | ATMEL | QFP | 23 | AVR | 16K | 512 | 1K | TQFP-32 | Surface Mount | 10/8 | 1 USART,2 SPI,1 TWI | 8 | 20MHz |
 | 0065-0381-1 | ATMEGA644PA-AUR-T | 0 | 1,378.00 | | PB-Free | RoHS | 8-Bit AVR MCU ISP Flash 64KBytes,RAM 4KBytes EEPROM 2KBytes,Speed 20MHz,QTouch Library Support USART,TWI,SPI,JTAG Interface | ATMEL | QFP | 32 | AVR | 64K | 2K | 4K | TQFP-44 | Surface Mount | 10/8 | 2 USART,2 SPI,1 TWI | 8 | 20MHz |
 | 0065-0151-1 | AT89C4051-24SU | 326 | 75.81 | | 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 | 90 | 524.10 | | 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 | 4,957 | 148.00 | | 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 | 483 | 214.90 | | 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 | 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 | 3,546 | 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 |
 | 0065-0201-6 | ATTINY45-20SU | 1,363 | 73.93 | | 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 |
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