| 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 |
| | | | | | | | | | | | | | | | | | | | | |
 | 0065-0313-1 | ATMEGA328P-PU | 1,872 | 130.80 |  | PB-Free | RoHS | 8-Bits AVR MCU ISP Flash 32KBytes,RAM 2KBytes EEPROM 1 KBytes,Speed 20 MHz | ATMEL | DIP | 23 | AVR | 32K | 1K | 2K | PDIP-28 | Through Hole | 10/6 | 1 USART,1 SPI,1 TWI | 8 | 20MHz |
 | 0065-0300-8 | ATMEGA32A-PU | 403 | 210.90 | | PB-Free | RoHS | 8-Bit AVR MCU Flash 32KBytes, RAM 2KBytes EEPROM 1KBytes, 16MHz | ATMEL | DIP | 32 | AVR | 32K | 1K | 2K | PDIP-40 | Through Hole | 10/8 | 1 USART,1 SPI,1 TWI | 8 | 16MHz |
 | 0065-0385-8 | AT89C51ED2-RLTUM-T | 0 | 198.50 | | PB-Free | RoHS | 8-Bit MCS-51 MCU Flash 64KBytes,RAM 2048 Bytes EEPROM 2048 Bytes,60MHz | ATMEL | QFP | 32 | MCS51 | 64K | 2K | 2K | QFP-44 | Surface Mount | - | 1 UART,1 SPI | 8 | 60MHz |
 | 0065-0226-9 | ATMEGA64L-8AU | 0 | 221.70 | | 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 |
| 0065-0212-3 | AT89C51AC2-RLTUM | 15 | 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 |
 | 0065-0238-9 | AT89C51ED2-SLSUM | 114 | 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 |
 | 0065-0195-9 | 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 |
| 0065-0169-9 | AT89S8253-24PU | 408 | 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 |
 | 0065-0163-1 | AT89C51ED2-SMSUM | 90 | 554.00 | | 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 |
| 0065-0355-9 | ATMEGA644PA-AU | 249 | 312.80 | | PB-Free | RoHS | 8-Bit AVR MCU ISP Flash 64KBytes, RAM 4KBytes, EEPROM 2KBytes, Speed 20MHz | ATMEL | QFP | 32 | AVR | 64K | 2K | 4K | TQFP-44 | Surface Mount | 10/8 | 2 USART,1 SPI,1 TWI | 8 | 20MHz |
| 0065-0356-1 | ATMEGA644PA-PU | 1,459 | 288.60 | | PB-Free | RoHS | 8-Bit AVR MCU ISP Flash 64KBytes,RAM 4KBytes EEPROM 2KBytes,20MHz | ATMEL | DIP | 32 | AVR | 64K | 2K | 4K | PDIP-40 | Through Hole | 10/8 | 2 USART,1 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 |
| 0065-0381-1 | 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 |
| 1522-0039-2 | AT89S8253-24PU | 0 | 260.40 | | 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 |
 | 1111-0053-1 | ML62Q1335-NNNTDZWATL | 0 | 24.80 | | PB-Free | RoHS | 16-Bit nX-U16/100 MCU, Flash 32KBytes, RAM 2KBytes Data Flash 2KBytes, Speed 24MHz | LAPIS (ROHM GROUP) | SOIC | 16 | nX-U16/100 | 32K | 2K | 2K | SSOP-20 | Surface Mount | 10/8 | 2 UART,1 I2C | 16 | 24MHz |
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