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| PartNumber | MSP430F2121IDGVR | MSP430F2121IDW | MSP430F2121IDGV |
| 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 | 16-bit Microcontrollers - MCU 16-bit Ult-Lo-Pwr 4kB Flash 256B RAM |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | TVSOP-20 | SOIC-20 | TVSOP-20 |
| Series | MSP430F2121 | MSP430F2121 | MSP430F2121 |
| Core | MSP430 | MSP430 | MSP430 |
| Data Bus Width | 16 bit | 16 bit | 16 bit |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz |
| Program Memory Size | 4 kB | 4 kB | 4 kB |
| Data RAM Size | 256 B | 256 B | 256 B |
| ADC Resolution | No ADC | No ADC | No ADC |
| Number of I/Os | 16 I/O | 16 I/O | 16 I/O |
| Operating Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 105 C | + 105 C | + 105 C |
| Packaging | Reel | Tube | Tube |
| Height | 1.05 mm | 2.35 mm | 1.05 mm |
| Length | 5 mm | 12.8 mm | 5 mm |
| Program Memory Type | Flash | Flash | Flash |
| Width | 4.4 mm | 7.52 mm | 4.4 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Data ROM Size | 256 B | 256 B | 256 B |
| Data ROM Type | Flash | Flash | Flash |
| Interface Type | UART | UART | UART |
| Moisture Sensitive | Yes | - | Yes |
| Number of Timers/Counters | 1 Timer | 1 Timer | 1 Timer |
| Processor Series | 2 Series | 2 Series | 2 Series |
| Product Type | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU |
| Factory Pack Quantity | 2000 | 25 | 90 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Tradename | MSP430 | MSP430 | MSP430 |
| Watchdog Timers | No Watchdog Timer | No Watchdog Timer | No Watchdog Timer |
| Unit Weight | 0.002123 oz | 0.017662 oz | 0.002123 oz |