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| PartNumber | MSP430F2121IRGER | MSP430F2121IRGET | MSP430F2121IRGERG4 |
| Description | 16-bit Microcontrollers - MCU 16-bit Ult-Lo-Pwr 4kB Flash 256B RAM | 16-bit Microcontrollers - MCU 16-bit Ult-Lo-Pwr 4kB Flash 256B RAM | |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | VQFN-24 | VQFN-24 | - |
| Series | MSP430F2121 | MSP430F2121 | - |
| Core | MSP430 | MSP430 | - |
| Data Bus Width | 16 bit | 16 bit | - |
| Maximum Clock Frequency | 16 MHz | 16 MHz | - |
| Program Memory Size | 4 kB | 4 kB | - |
| Data RAM Size | 256 B | 256 B | - |
| ADC Resolution | No ADC | No ADC | - |
| Number of I/Os | 16 I/O | 16 I/O | - |
| Operating Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 105 C | + 105 C | - |
| Packaging | Reel | Reel | - |
| Height | 0.88 mm | 0.88 mm | - |
| Length | 4 mm | 4 mm | - |
| Program Memory Type | Flash | Flash | - |
| Width | 4 mm | 4 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Data ROM Size | 256 B | 256 B | - |
| Data ROM Type | Flash | Flash | - |
| Interface Type | UART | UART | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 1 Timer | 1 Timer | - |
| Processor Series | 2 Series | 2 Series | - |
| Product Type | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 3000 | 250 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Tradename | MSP430 | MSP430 | - |
| Watchdog Timers | No Watchdog Timer | No Watchdog Timer | - |
| Unit Weight | 0.001601 oz | 0.001601 oz | - |