Texas Instruments MSP430A018IPN, MSP430x4xx series 16-bit microcontroller, 60KB FLASH / 2KB RAM, 8MHz core, 48 I/O, SPI and UART/USART, 12-bit ADC (12ch) and DAC (2ch), 1.8–3.6V supply, -40 to 85°C, 80-LQFP (12×12mm) tray.
| Parameter | Value |
|---|---|
| Series | MSP430x4xx |
| Mounting | Surface Mount |
| Oscillator type | Internal |
| Program memory type | FLASH |
| Voltage - supply (Vcc (Vdd)) | 1.8V ~ 3.6V |
| Operating temperature | -40°C~85°C(TA) |
| Speed | 8MHz |
| Package | Tray |
| RAM size | 2K x 8 |
| Core size | 16-Bit |
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT |
| Connectivity | SPI, UART/USART |
| Number of i (O) | 48 |
| Core processor | MSP430 |
| Case | 80-LQFP |
| Data converters | A/D 12x12b; D/A 2x12b |
| Program memory size | 60KB (60K x 8 + 256B) |
The MSP430A018IPN: The 8 MHz clock rate is matched to the MSP430 architecture's strength: executing control loops and sensor reads at microamps per MHz. The internal oscillator trims to the rated accuracy without an external crystal, saving two pins and board area.
60 KB of Flash and 2 KB RAM are available. The 256-byte additional memory in the program memory map is likely information memory for calibration constants.
The MSP430A018IPN and MSP430F149 are both members of the MSP430x4xx family but come in different package options — the A018IPN is an 80-LQFP, while the F149 is typically in a 64-pin QFP or 80-pin package variant. Pin compatibility depends on the specific package code; verify the pin assignments from the respective datasheets before assuming a drop-in replacement.