MSP430G2955IRHA40R Detailed explanation of pin function specifications and circuit principle instructions

MSP430G2955IRHA40R Detailed explanation of pin function specifications and circuit principle instructions

The model number "MSP430G2955IRHA40R" belongs to Texas Instruments (TI), which is a prominent semiconductor company. The MSP430 series is part of TI's low- Power microcontroller family, typically used in embedded systems and applications requiring minimal energy consumption.

Packaging and Pin Configuration

The model you mentioned, MSP430G2955IRHA40R, is housed in a 40-pin HTSSOP (Heat Sink Thin Shrink Small Outline Package). This is a compact surface-mount package, with the following general pin configuration details:

40 pins in total. Each pin has a specific function related to power, input/output, analog, digital, and communication features.

Pin Function Specification and Detailed List

Below is a detailed list of the 40 pins and their respective functions:

Pin No. Pin Name Pin Function / Description 1 VSS Ground (GND) 2 VCC Power Supply (3.3V typical) 3 P1.0 General Purpose I/O 4 P1.1 General Purpose I/O 5 P1.2 General Purpose I/O 6 P1.3 General Purpose I/O 7 P1.4 General Purpose I/O 8 P1.5 General Purpose I/O 9 P1.6 General Purpose I/O 10 P1.7 General Purpose I/O 11 P2.0 General Purpose I/O 12 P2.1 General Purpose I/O 13 P2.2 General Purpose I/O 14 P2.3 General Purpose I/O 15 P2.4 General Purpose I/O 16 P2.5 General Purpose I/O 17 P2.6 General Purpose I/O 18 P2.7 General Purpose I/O 19 P3.0 General Purpose I/O 20 P3.1 General Purpose I/O 21 P3.2 General Purpose I/O 22 P3.3 General Purpose I/O 23 P3.4 General Purpose I/O 24 P3.5 General Purpose I/O 25 P3.6 General Purpose I/O 26 P3.7 General Purpose I/O 27 TDI JTAG Test Data Input 28 TDO JTAG Test Data Output 29 TMS JTAG Test Mode Select 30 TCK JTAG Test Clock 31 RST/NMI Reset / Non-Maskable Interrupt 32 RXD UART Receive Data 33 TXD UART Transmit Data 34 VREF Voltage Reference 35 A0 Analog Input 36 A1 Analog Input 37 A2 Analog Input 38 A3 Analog Input 39 A4 Analog Input 40 A5 Analog Input

Each pin has specific features. For example:

General Purpose I/O (GPIO) pins (e.g., P1.x, P2.x, P3.x) can be used for input, output, or both, and many can also be configured for alternative functions like PWM or UART. JTAG pins (e.g., TDI, TDO, TMS, TCK) are used for debugging and programming the microcontroller. Analog pins (e.g., A0 to A5) are used for analog input, typically interface d with the ADC (Analog-to-Digital Converter).

Common FAQs Regarding MSP430G2955IRHA40R

What is the operating voltage range for MSP430G2955IRHA40R? The operating voltage for MSP430G2955IRHA40R is typically between 1.8V and 3.6V. Can I use the GPIO pins for both input and output? Yes, the GPIO pins can be configured for either input or output functionality. How many analog inputs does the MSP430G2955IRHA40R have? There are 6 analog input pins (A0 to A5). What is the maximum clock speed of MSP430G2955IRHA40R? The maximum clock speed is 16 MHz. Does the MSP430G2955IRHA40R support UART communication? Yes, it supports UART communication through RXD and TXD pins. Is MSP430G2955IRHA40R compatible with JTAG for debugging? Yes, it supports JTAG for debugging via TDI, TDO, TMS, and TCK pins. Can the MSP430G2955IRHA40R be used in low-power applications? Yes, it is designed for ultra-low power consumption, making it ideal for battery-powered applications. What are the power supply requirements for the MSP430G2955IRHA40R? It requires a stable 3.3V power supply, with a voltage range from 1.8V to 3.6V. How many GPIO pins are available on MSP430G2955IRHA40R? There are 24 general-purpose I/O pins across P1, P2, and P3. Does MSP430G2955IRHA40R have a watchdog timer? Yes, it includes a watchdog timer to prevent system lock-ups. Can I use the analog pins for PWM output? No, PWM output is typically available on GPIO pins, not analog input pins. What is the maximum frequency for analog-to-digital conversion? The maximum sampling rate for the ADC is approximately 200k samples per second. Is the reset pin active high or active low? The reset pin is active low, meaning the microcontroller will reset when this pin is pulled low. Can I use the MSP430G2955IRHA40R in automotive applications? Yes, it can be used in automotive applications, given its low power consumption and availability of analog features. What is the power consumption of the MSP430G2955IRHA40R in active mode? The typical current consumption is around 100 µA/MHz in active mode. How do I configure the pins as inputs or outputs? Pin configuration is managed through software, setting the direction of the pin via registers. Can the MSP430G2955IRHA40R be used in wireless communication applications? Yes, it can be interfaced with external wireless module s for communication. Is there an internal oscillator in MSP430G2955IRHA40R? Yes, it features an internal low-frequency oscillator for timekeeping and low-power applications. How many interrupts can MSP430G2955IRHA40R handle? The MSP430G2955IRHA40R can handle multiple interrupts via its interrupt controller. Can I use the MSP430G2955IRHA40R in industrial control systems? Yes, the microcontroller is well-suited for industrial control due to its robust analog and digital features.

This explanation covers both the pin function specifics and addresses frequent questions regarding the MSP430G2955IRHA40R.