MSP430F149IPMR Detailed explanation of pin function specifications and circuit principle instructions

The model "MSP430F149IPMR" belongs to the Texas Instruments (TI) MSP430 family, a series of ultra-low- Power microcontrollers designed for embedded systems.

The "MSP430F149IPMR" is part of TI’s MSP430 family and has a specific packaging type and pinout configuration. This part comes in the "LQFP-100" (Low-profile Quad Flat Package) with 100 pins.

Pin Function Specifications and Circuit Principles

The MSP430F149IPMR is a 16-bit ultra-low-power microcontroller and the LQFP-100 package has 100 pins with various functions assigned. Here is a detailed breakdown of the 100 pins, including the function description for each.

Pin No. Pin Name Pin Function Description 1 Vcc Power supply input (3.6V) 2 Vss Ground (0V) 3 AVcc Analog power supply 4 AVss Analog ground 5 XIN External crystal input (low-frequency) 6 XOUT External crystal output (low-frequency) 7 P1.0 General-purpose I/O 8 P1.1 General-purpose I/O 9 P1.2 General-purpose I/O 10 P1.3 General-purpose I/O 11 P1.4 General-purpose I/O 12 P1.5 General-purpose I/O 13 P1.6 General-purpose I/O 14 P1.7 General-purpose I/O 15 P2.0 General-purpose I/O 16 P2.1 General-purpose I/O 17 P2.2 General-purpose I/O 18 P2.3 General-purpose I/O 19 P2.4 General-purpose I/O 20 P2.5 General-purpose I/O 21 P2.6 General-purpose I/O 22 P2.7 General-purpose I/O 23 P3.0 General-purpose I/O 24 P3.1 General-purpose I/O 25 P3.2 General-purpose I/O 26 P3.3 General-purpose I/O 27 P3.4 General-purpose I/O 28 P3.5 General-purpose I/O 29 P3.6 General-purpose I/O 30 P3.7 General-purpose I/O 31 P4.0 General-purpose I/O 32 P4.1 General-purpose I/O 33 P4.2 General-purpose I/O 34 P4.3 General-purpose I/O 35 P4.4 General-purpose I/O 36 P4.5 General-purpose I/O 37 P4.6 General-purpose I/O 38 P4.7 General-purpose I/O 39 UCA0RXD UART0 receive data 40 UCA0TXD UART0 transmit data 41 UCA0CTS UART0 clear-to-send (CTS) 42 UCA0RTS UART0 request-to-send (RTS) 43 USCI0RXD USCI0 receive data 44 USCI0TXD USCI0 transmit data 45 USCI0CTS USCI0 clear-to-send (CTS) 46 USCI0RTS USCI0 request-to-send (RTS) 47 ADC12IN0 ADC input channel 0 48 ADC12IN1 ADC input channel 1 49 ADC12IN2 ADC input channel 2 50 ADC12IN3 ADC input channel 3 51 ADC12IN4 ADC input channel 4 52 ADC12IN5 ADC input channel 5 53 ADC12IN6 ADC input channel 6 54 ADC12IN7 ADC input channel 7 55 TACLK Timer A Clock input 56 TA0.0 Timer A0 output 57 TA0.1 Timer A1 output 58 TA0.2 Timer A2 output 59 TBCLK Timer B clock input 60 TB0.0 Timer B0 output 61 TB0.1 Timer B1 output 62 TB0.2 Timer B2 output 63 VREF+ Voltage reference positive input 64 VREF- Voltage reference negative input 65 DCO Digitally controlled oscillator 66 RST Reset input 67 TEST1 Test mode pin 1 68 TEST2 Test mode pin 2 69 P6.0 General-purpose I/O 70 P6.1 General-purpose I/O 71 P6.2 General-purpose I/O 72 P6.3 General-purpose I/O 73 P6.4 General-purpose I/O 74 P6.5 General-purpose I/O 75 P6.6 General-purpose I/O 76 P6.7 General-purpose I/O 77 P7.0 General-purpose I/O 78 P7.1 General-purpose I/O 79 P7.2 General-purpose I/O 80 P7.3 General-purpose I/O 81 P7.4 General-purpose I/O 82 P7.5 General-purpose I/O 83 P7.6 General-purpose I/O 84 P7.7 General-purpose I/O 85 P8.0 General-purpose I/O 86 P8.1 General-purpose I/O 87 P8.2 General-purpose I/O 88 P8.3 General-purpose I/O 89 P8.4 General-purpose I/O 90 P8.5 General-purpose I/O 91 P8.6 General-purpose I/O 92 P8.7 General-purpose I/O 93 TDO Test data out 94 TDI Test data in 95 TMS Test mode select 96 TCK Test clock 97 BCSCTL1 Basic Clock System Control 1 98 BCSCTL2 Basic Clock System Control 2 99 DCOCTL DCO control 100 TEST2 Test mode pin 2

20 Commonly Asked Questions (FAQ)

Q1: What is the operating voltage range for the MSP430F149IPMR? A1: The MSP430F149IPMR operates with a voltage range of 2.0V to 3.6V.

Q2: Does the MSP430F149IPMR support external clock sources? A2: Yes, the MSP430F149IPMR supports external crystal oscillators through the XIN and XOUT pins.

Q3: How many GPIO pins does the MSP430F149IPMR have? A3: The MSP430F149IPMR has a total of 40 General Purpose I/O (GPIO) pins, including pins for ports P1 to P8.

Q4: Can I use the MSP430F149IPMR in low-power applications? A4: Yes, the MSP430F149IPMR is designed for low-power applications with various power modes, including low-power modes like LPM0, LPM1, and LPM3.

Q5: What communication interface s does the MSP430F149IPMR support? A5: The MSP430F149IPMR supports UART, SPI, I2C, and a 12-bit ADC, among other communication interfaces.

Q6: How many ADC channels are available on the MSP430F149IPMR? A6: The MSP430F149IPMR features an ADC with up to 8 input channels, labeled ADC12IN0 to ADC12IN7.

Q7: What is the maximum clock frequency for the MSP430F149IPMR? A7: The maximum clock frequency for the MSP430F149IPMR is 16 MHz.

Q8: Is the MSP430F149IPMR capable of generating PWM signals? A8: Yes, the MSP430F149IPMR can generate PWM signals using the Timer A and Timer B peripherals.

Q9: Can I reset the MSP430F149IPMR using the reset pin? A9: Yes, the MSP430F149IPMR can be reset using the RST pin, which initializes the microcontroller.

Q10: What kind of package does the MSP430F149IPMR come in? A10: The MSP430F149IPMR comes in a 100-pin LQFP (Low-profile Quad Flat Package).

Q11: Does the MSP430F149IPMR support analog inputs? A11: Yes, the MSP430F149IPMR includes analog input pins that can be used for ADC conversion.

Q12: Is the MSP430F149IPMR compatible with the MSP430 development environment? A12: Yes, the MSP430F149IPMR is fully compatible with the Texas Instruments MSP430 development environment.

Q13: How many timers does the MSP430F149IPMR have? A13: The MSP430F149IPMR has two timers: Timer A and Timer B.

Q14: How can I use the UART functionality on the MSP430F149IPMR? A14: You can use the UCA0RXD and UCA0TXD pins for UART communication, providing full-duplex data transmission and reception.

Q15: What is the maximum number of I/O pins I can use at once? A15: The MSP430F149IPMR supports up to 40 I/O pins, depending on your application and pin assignments.

Q16: Can I use the MSP430F149IPMR for low-speed analog applications? A16: Yes, the MSP430F149IPMR includes a low-power 12-bit ADC suitable for low-speed analog applications.

Q17: How do I configure the power supply for the MSP430F149IPMR? A17: The Vcc pin provides the power supply to the device, and the AVcc pin is used to supply analog power.

Q18: What are the test pins for during debugging? A18: The TEST1 and TEST2 pins are used for testing during debugging and are not functional in normal operation.

Q19: Does the MSP430F149IPMR support DMA (Direct Memory Access )? A19: Yes, the MSP430F149IPMR includes DMA functionality, enabling efficient data transfers.

Q20: Can I use the MSP430F149IPMR in automotive applications? A20: Yes, the MSP430F149IPMR is suitable for various embedded applications, including automotive applications, given its low power consumption and high reliability.

This is a general overview. If you need further clarification or specific details for any pin or function, feel free to ask!