MSP430F122IPW - 16-Bit 8MHz Mixed-Signal MCU | Texas Instruments
MPN: MSP430F122IPW ✓ Hoạt độngMSP430F122IPW Tóm tắt
A microcontroller is a programmable semiconductor that integrates a processor core, memory, and peripherals into one device. The MSP430 belongs to the mixed-signal microcontroller category, combining digital control with an analog comparator and communication peripherals. Its architecture is designed for battery-powered and energy-conscious instrumentation, where low-power states and fast wake-up behavior can reduce average energy consumption.
The MSP430F122 provides a 16-bit RISC core with a maximum 8 MHz clock, 4 KB Flash for program storage, and 256 bytes of SRAM for working data. Its integrated peripherals include a 16-bit timer, versatile analog comparator, SPI interface, and UART. Twenty-two I/O pins provide connections for sensors, switches, displays, actuators, and serial communications. The available verified product information identifies the MSP430F12x series as an ultra-low-power mixed-signal MCU with built-in communication capability.
The MSP430 architecture executes compact instructions and provides multiple low-power operating modes. This makes it useful in embedded designs that spend most of their time monitoring inputs rather than continuously calculating. Its mixed-signal resources can reduce external component count when the design needs threshold detection, timing, or simple serial connectivity. The manufacturer product page specifically identifies a timer, comparator, SPI, and UART for the MSP430F122 device.
Typical applications include low-power sensor nodes, industrial control modules, battery-powered instruments, data acquisition systems, and compact embedded products with local serial communication. The 28-pin TSSOP package is also suitable for prototypes and moderate-density control boards where a through-hole-style lead spacing simplifies assembly and inspection.
Designers should verify the complete pinout, clock configuration, reset requirements, and operating limits against the manufacturer datasheet before layout. The exact supply-voltage range, current consumption by mode, temperature range, and detailed pin assignments were not present in the supplied verified data and therefore require confirmation. This page distinguishes documented facts from parameters that still need datasheet verification.
Bộ thay thế dễ dàng lắp đặt cho MSP430F122IPW — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MSP430F122IPW (cùng hình factor và footprint) — khác nhau ở Flash Memory.
MSP430F123IPW
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MSP430F121IPW
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MSP430F123IPWR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MSP430F121IPWR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MSP430F122IPW Tỷ lệ tối đa & tính chất điện
| Microcontroller Type | 16-bit RISC mixed-signal microcontroller |
| Tần số xung maksimum | 8 MHz |
| Flash Memory | 4 KB |
| Program Memory Organization | 4K x 8 bytes |
| SRAM | 256 bytes |
| General-Purpose I/O Pins | 22 pins |
| Integrated Timer | 16-bit timer |
| Analog Peripherals | 1 analog comparator |
| Synchronous Serial Interface | SPI |
| Asynchronous Serial Interface | UART |
| Architecture | 16-bit RISC |
| Power Class | Ultra-low-power |
| Hộp | 28-pin TSSOP (PW) |
| Kiểu lắp đặt | Surface mount |
Hướng dẫn cấu hình chân MSP430F122IPW 28-pin tssop (pw)
Cấu hình chân cho MSP430F122IPW (28-pin tssop (pw) gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho MSP430F122IPW.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
MSP430F122IPW phù hợp cho 6 Áp dụngs: Battery-Powered Sensor Node, Industrial Control Module, Portable Measurement Instrument, SPI Sensor Interface, UART-Based Configuration Interface, Low-Power Data Acquisition.
Battery-Powered Sensor Node
The MSP430F122IPW fits a compact sensor node because its 16-bit RISC core operates at up to 8 MHz while the MSP430F12x family supports low-power operating states. The 22 I/O pins can accommodate digital sensors, indicators, and control signals, while the analog comparator can perform threshold or simple mixed-signal functions. A typical design would sleep between measurements, wake for periodic sampling, and transmit results through the integrated UART or SPI. The practical benefit is a compact 28-pin TSSOP solution with firmware and data memory sized for modest embedded logic. Actual battery-life calculations still require verified current-consumption values for every active and standby state.
Được đề xuất
Industrial Control Module
The MSP430F122IPW is appropriate for a small industrial control module requiring deterministic embedded logic, status inputs, actuator outputs, and local diagnostics. Its 16-bit timer can support periodic scheduling or timing functions, while 22 I/O pins leave flexibility for switches, relays, indicators, and interlocks. The integrated UART permits connection to a host or service interface, and SPI can connect to sensors or display peripherals. Operating from a regulated industrial rail, the device avoids the memory overhead of a general-purpose application processor. Engineers should verify input tolerances, supply limits, and any industrial qualification requirements before deploying the controller in field equipment.
Được đề xuất
Portable Measurement Instrument
The MSP430F122IPW can serve as the control core of a portable measurement instrument where low energy use, a modest user interface, and local data handling are more important than high processing throughput. Its 256 bytes of SRAM accommodate short-term samples and working variables, while 4 KB of Flash holds a focused acquisition and display routine. The built-in comparator can implement level detection around an analog signal, and the timer can organize periodic measurements. The SPI or UART interface can connect to a sensor front end or host computer. Because the 28-pin TSSOP package is compact but not the smallest possible package, board-space savings should be balanced against assembly cost and connector density.
Được đề xuất
SPI Sensor Interface
The MSP430F122IPW is suitable for reading a local SPI sensor when the design requires a compact mixed-signal controller without an external serial transceiver. The integrated SPI interface reduces component count, while the 22 available I/O pins can provide chip-select, interrupt, and status signals for the sensor. A typical acquisition loop can use the 16-bit timer for a stable sampling interval and the comparator for simple threshold events, leaving the UART available for configuration or diagnostic output. The 8 MHz maximum clock and 4 KB of Flash are sufficient for focused firmware, although complex filtering, large frame buffers, or high-rate logging may exceed the available SRAM.
Được đề xuất
UART-Based Configuration Interface
The MSP430F122IPW is a practical choice when an embedded product needs a simple UART command interface for configuration, diagnostics, or firmware-related communication. The on-chip UART reduces the need for an external serial transceiver, leaving the timer and comparator available for measurement or control tasks. Its 22 I/O pins provide flexibility for status LEDs, user inputs, and peripheral selection, while the 28-pin TSSOP package supports compact control boards. For a product exposed to electrical transients or long cable runs, the MCU-side UART should be paired with an appropriate protection and isolation interface rather than relying on the microcontroller pins alone.
Được đề xuất
Low-Power Data Acquisition
The MSP430F122IPW can support a low-power data-acquisition subsystem that combines periodic sampling, threshold detection, and short-range serial transfer. Its 16-bit timer provides a convenient timing reference, the analog comparator can detect a sensor crossing a threshold, and the 256-byte SRAM can hold a limited sample buffer. The MCU's low-power architecture is valuable when samples are collected intermittently rather than continuously. Designers should confirm comparator behavior, timer resources, and wake-up timing in the manufacturer datasheet, and should avoid allocating buffers beyond the verified 256-byte SRAM. This device is best suited to targeted measurements rather than high-throughput waveform capture.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MSP430F122IPW — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MSP430F123IPW | MSP430F121IPW | MSP430F123IPWR | MSP430F121IPWR |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-pin TSSOP (PW) | 28-pin TSSOP (PW) - same footprint | 28-pin TSSOP (PW) - same footprint | 28-pin TSSOP (PW) - same footprint | 28-pin TSSOP (PW) - same footprint |
| Processor Architecture | 16-bit RISC | 16-bit RISC MSP430 architecture | 16-bit RISC MSP430 architecture | 16-bit RISC MSP430 architecture | 16-bit RISC MSP430 architecture |
| Maximum Clock Frequency | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Flash Memory | 4 KB | More Flash than MSP430F122 | Less Flash than MSP430F122 | More Flash than MSP430F122 | Less Flash than MSP430F122 |
| Integrated Communications | SPI and UART | SPI and UART in MSP430F12x family | SPI and UART in MSP430F12x family | SPI and UART in MSP430F12x family | SPI and UART in MSP430F12x family |
| Analog and Timing Resources | Analog comparator and 16-bit timer | Analog comparator and 16-bit timer | Analog comparator and 16-bit timer | Analog comparator and 16-bit timer | Analog comparator and 16-bit timer |
| Power Class | Ultra-low-power MSP430F12x | Ultra-low-power MSP430F12x | Ultra-low-power MSP430F12x | Ultra-low-power MSP430F12x | Ultra-low-power MSP430F12x |
Bảo phân biệt quan trọng
- Balanced MSP430F12x resource set for compact embedded control (vsATMEGA328P-MNR)
- More program-memory growth path than the lower-memory same-family option (vsMSP430F121IPW)
- Integrated mixed-signal resources reduce external support components (vsATMEGA328P-ANR)
Ghi chú thiết kế
Use the official Texas Instruments pin configuration diagram before assigning the 28 TSSOP pins. The supplied verified data confirms the package and 22 I/O pins but does not provide pin names, so power, ground, reset, clock, and peripheral assignments must not be inferred from a generic MSP430 layout. Preserve access to test points for supply voltage, reset, and serial debug, and place required decoupling capacitors close to the device pins according to the manufacturer guidance.
Calculate average energy use from the MCU's active and low-mode currents, which were not included in the supplied verified data. For a periodic task, the average current is the weighted sum of each state's current and duration. Confirm that the regulator can support peak active current, the battery can tolerate the sleep-state floor, and the 4 KB Flash and 256-byte SRAM are adequate for the intended firmware. Avoid designing from generic MSP430 current values.
Do not assume that any 28-pin microcontroller is a drop-in replacement. Software portability requires matching the MSP430 instruction set, interrupt-vector layout, timer resources, UART behavior, SPI modes, comparator registers, clock configuration, and memory map. A same-family MSP430F12x candidate is the safer starting point, but its datasheet and ordering information must be checked before substituting it into an existing MSP430F122IPW layout.
Thông tin tuân thủ
The supplied verified product snippets do not explicitly state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. These values must be confirmed from the current Texas Instruments product and quality documentation. AEC-Q100 is not applicable because this is a general-purpose microcontroller rather than an automotive-qualified device designation in the supplied data.
