| Part Numbers | Manufacturer Name | Datasheet | Core Processor | Core Size | Speed | Connectivity | RAM Size | Number of I/O | Program Memory Size | Program Memory Type | EEPROM Size | Voltage - Supply (Vcc/Vdd) | Data Converters | Oscillator Type | Operating Temperature | Package / Case |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ATTINY40-SU | ATMEL CORP | AVR | 8-Bit | 12MHz | I²C, SPI | 18 | 4KB (2K x 16) | FLASH | - | 256 x 8 | 1.8 V ~ 5.5 V | A/D 12x10b | Internal | -40°C ~ 85°C | 20-SOIC (0.295, 7.50mm Width) | |
| ATTINY40-SUR | ATMEL CORP | AVR | 8-Bit | 12MHz | I²C, SPI | 18 | 4KB (2K x 16) | FLASH | - | 256 x 8 | 1.8 V ~ 5.5 V | A/D 12x10b | Internal | -40°C ~ 85°C | 20-SOIC (0.295, 7.50mm Width) | |
| ATTINY40-XUR | ATMEL CORP | AVR | 8-Bit | 12MHz | I²C, SPI | 18 | 4KB (2K x 16) | FLASH | - | 256 x 8 | 1.8 V ~ 5.5 V | A/D 12x10b | Internal | -40°C ~ 85°C | 20-TSSOP (0.173, 4.40mm Width) | |
| ATTINY40-MMHR | ATMEL CORP | AVR | 8-Bit | 12MHz | I²C, SPI | 18 | 4KB (2K x 16) | FLASH | - | 256 x 8 | 1.8 V ~ 5.5 V | A/D 12x10b | Internal | -40°C ~ 85°C | 20-VFQFN Exposed Pad | |
| ATTINY40-XU | ATMEL CORP | AVR | 8-Bit | 12MHz | I²C, SPI | 18 | 4KB (2K x 16) | FLASH | - | 256 x 8 | 1.8 V ~ 5.5 V | A/D 12x10b | Internal | -40°C ~ 85°C | 20-TSSOP (0.173, 4.40mm Width) | |
| ATTINY40-MMH | ATMEL CORP | AVR | 8-Bit | 12MHz | I²C, SPI | 18 | 4KB (2K x 16) | FLASH | - | 256 x 8 | 1.8 V ~ 5.5 V | A/D 12x10b | Internal | -40°C ~ 85°C | 20-VFQFN Exposed Pad | |
| PIC17C42A-25/P | MICROCHIP TECHNOLOGY INC | PIC | 8-Bit | 25MHz | UART/USART | 33 | 4KB (2K x 16) | OTP | - | 232 x 8 | 4.5 V ~ 6 V | - | External | 0°C ~ 70°C | 40-DIP (0.600, 15.24mm) | |
| PIC17C42A-16/L | MICROCHIP TECHNOLOGY INC | PIC | 8-Bit | 16MHz | UART/USART | 33 | 4KB (2K x 16) | OTP | - | 232 x 8 | 4.5 V ~ 6 V | - | External | 0°C ~ 70°C | 44-LCC (J-Lead) | |
| PIC17C42A-16/P | MICROCHIP TECHNOLOGY INC | PIC | 8-Bit | 16MHz | UART/USART | 33 | 4KB (2K x 16) | OTP | - | 232 x 8 | 4.5 V ~ 6 V | - | External | 0°C ~ 70°C | 40-DIP (0.600, 15.24mm) | |
| PIC17C42A-33/P | MICROCHIP TECHNOLOGY INC | PIC | 8-Bit | 33MHz | UART/USART | 33 | 4KB (2K x 16) | OTP | - | 232 x 8 | 4.5 V ~ 6 V | - | External | 0°C ~ 70°C | 40-DIP (0.600, 15.24mm) |
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