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| PartNumber | ATTINY4-MAHR | ATTINY4-TS8R | ATTINY4-TSHR |
| Description | 8-bit Microcontrollers - MCU 512B FLSH 32B SRAM TIMER 12MHz NiPdAu | 8-bit Microcontrollers - MCU 512B FLASH 32B SRAM TIMER | 8-bit Microcontrollers - MCU 512B FLASH 32B SRAM TIMER 12MHz |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | UDFN-8 | SOT-23-6 | SOT-23-6 |
| Series | ATtiny4 | ATtiny4 | ATtiny4 |
| Core | AVR | AVR | AVR |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 12 MHz | 10 MHz | 12 MHz |
| Program Memory Size | 512 B | 512 B | 512 B |
| Data RAM Size | 32 B | 32 B | 32 B |
| ADC Resolution | No ADC | No ADC | No ADC |
| Operating Supply Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 125 C | + 85 C |
| Packaging | Reel | Reel | Reel |
| Product | MCU | MCU | MCU |
| Brand | Microchip Technology / Atmel | Microchip Technology / Atmel | Microchip Technology / Atmel |
| Processor Series | tinyAVR | tinyAVR | tinyAVR |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 3000 | 4500 | 4500 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Tradename | AVR | AVR | AVR |
| Unit Weight | 0.000335 oz | - | 0.001270 oz |
| Number of I/Os | - | 4 I/O | 4 I/O |
| Program Memory Type | - | Flash | Flash |
| Data RAM Type | - | SRAM | - |
| Interface Type | - | ISP | ISP |
| Analog Supply Voltage | - | 1.8 V to 5.5 V | - |
| Number of Timers/Counters | - | 1 x 16 bit | 1 Timer |
| Supply Voltage Max | - | 5.5 V | 5.5 V |
| Supply Voltage Min | - | 1.8 V | 1.8 V |
| Watchdog Timers | - | Watchdog Timer | - |
| Height | - | - | 1.3 mm |
| Length | - | - | 2.9 mm |
| Width | - | - | 1.6 mm |
| Part # Aliases | - | - | ATTINY4-TSHRB71 |