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| PartNumber | MSP430F6638IZQWR | MSP430F6638IZQWT | MSP430F6638IZQW |
| Description | 16-bit Microcontrollers - MCU MSP430 Ultra-Low MCU | 16-bit Microcontrollers - MCU MSP430 Ultra-Low MCU | 16-bit Microcontrollers - MCU MSP430 Ultra-Low MCU |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU | Embedded - Microcontrollers |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | BGA-Microstar-Junior-113 | BGA-Microstar-Junior-113 | - |
| Series | MSP430F6638 | MSP430F6638 | MSP430F6xx |
| Core | MSP430 | MSP430 | MSP430 |
| Data Bus Width | 16 bit | 16 bit | 16 bit |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz |
| Program Memory Size | 256 kB | 256 kB | 256KB (256K x 8) |
| Data RAM Size | 16 kB | 16 kB | 16 kB |
| 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 | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Reel | Digi-ReelR Alternate Packaging |
| Program Memory Type | Flash | Flash | FLASH |
| Brand | Texas Instruments | Texas Instruments | - |
| Interface Type | I2C, SPI, UART | I2C, SPI, USB | I2C SPI UART |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 4 Timer | 5 Timer | - |
| Processor Series | 6 Series | 6 Series | 6 Series |
| Product Type | 16-bit Microcontrollers - MCU | 16-bit Microcontrollers - MCU | - |
| Factory Pack Quantity | 2500 | 250 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Tradename | MSP430 | MSP430 | MSP430 |
| Watchdog Timers | No Watchdog Timer | No Watchdog Timer | - |
| Number of I/Os | - | 74 I/O | - |
| Data RAM Type | - | SRAM | - |
| Unit Weight | - | 0.003118 oz | - |
| Package Case | - | - | BGA-113 |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 113-BGA Microstar Junior (7x7) |
| Number of I O | - | - | 74 |
| Speed | - | - | 20MHz |
| EEPROM Size | - | - | - |
| Core Processor | - | - | CPUXV2 |
| RAM Size | - | - | 18K x 8 |
| Peripherals | - | - | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Connectivity | - | - | I2C, IrDA, LIN, SCI, SPI, UART/USART, USB |
| Voltage Supply Vcc Vdd | - | - | 1.8 V ~ 3.6 V |
| Core Size | - | - | 16-Bit |
| Data Converters | - | - | A/D 16x12b, D/A 2x12b |
| Oscillator Type | - | - | Internal |
| Number of Timers Counters | - | - | 4 Timer |