MSP430F123IPW - 8MHz 16-Bit MCU | Texas Instruments
MPN: MSP430F123IPW ✓ NakahandaMSP430F123IPW Ulas
An ultralow-power microcontroller is an integrated semiconductor that prioritizes low active and standby current while retaining deterministic digital processing and mixed-signal sensing capabilities. The MSP430 belongs to the microcontroller hierarchy of embedded processors, combining a RISC CPU, nonvolatile program memory, volatile data memory, timers, communication interfaces, and low-power control in one package. Its architecture is aimed at battery-powered instruments, sensors, industrial controls, and portable measurement systems.
Five low-power operating modes allow the MSP430F123IPW to reduce activity when continuous processing is unnecessary. According to the manufacturer product information, active-mode current is approximately 200 µA at 1 MHz and 2.2 V, standby current is 0.7 µA, and off-mode current with RAM retention is 0.1 µA. Wake-up from standby takes less than 6 µs, allowing the device to preserve responsiveness while reducing average system energy consumption.
The CPU architecture uses a 16-bit RISC processor with 16-bit registers and a constant-memory instruction set. Program storage consists of 8 KB of Flash, while 256 bytes of SRAM provide working data space. The mixed-signal resources include a comparator for thresholding or simple analog-interface functions, and the communication peripherals include USART and SPI interfaces for connecting sensors, transceivers, displays, and external data acquisition components.
Typical uses include portable environmental monitors, industrial sensor nodes, battery-powered data loggers, smart measurement instruments, and compact control boards. The 1.8 V to 3.6 V supply range supports low-voltage embedded systems, while the 28-pin TSSOP package permits conventional surface-mount assembly. The USART supports serial links to host computers or configuration equipment, and SPI can provide a faster interface to external sensors, flash memory, or converters.
Designers should account for MCU operating current, peripheral load, startup behavior, and the time required to leave standby. Decoupling capacitors should be placed close to the supply pins, and unused inputs should be connected to defined levels. Firmware should configure the unused peripherals and pins before entering a low-power state, then use the documented wake-up mechanism to restore the required clock and peripheral conditions.
This product page combines the manufacturer device characteristics, package information, compatible MSP430 candidates, comparison parameters, and practical integration guidance. It is intended to accelerate part evaluation while preserving separate verification against the Texas Instruments MSP430F123IPW datasheet and the latest part-ordering information.
Mga alternatibo na pwedeng ilagay na MSP430F123IPW — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok MSP430F123IPW (parehas na form factor at footprint) — pagkakaiba sa Flash Memory, Package, SRAM, Product Type, Timer.
MSP430F1232IPWR
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
MSP430F122IPWR
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
MSP430F1101IPW
✅ Drop-In📋 Alternatibo na Reference (hindi sa katalogo)
MSP430F123IPW Mga Pinakamataas na Rating at Electrical Characteristics
| Product Type | 16-bit mixed-signal RISC microcontroller |
| Maksimum na Taktiko ng Oras | 8 MHz |
| Flash Memory | 8 KB |
| SRAM | 256 bytes |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Active Current | 200 µA at 1 MHz and 2.2 V |
| Standby Current | 0.7 µA |
| Off Current with RAM Retention | 0.1 µA |
| Standby Wake-Up Time | Less than 6 µs |
| Low-Power Modes | 5 modes |
| CPU Architecture | 16-bit RISC with 16-bit registers |
| Serial Interfaces | SPI and USART |
| Analog Peripheral | Comparator |
| Timer | Integrated timer |
| Packhaging | 28-pin TSSOP (PW) |
| Hanay ng Temperature na Operasyon | -40 °C to +85 °C |
| Uri ng Pagpapasok | Surface mount |
Gabay sa Pin Configuration ng MSP430F123IPW 28-pin tssop (pw)
Pin configuration para sa MSP430F123IPW (28-pin tssop (pw) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa MSP430F123IPW.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
MSP430F123IPW ay nararapat para sa 6 aplikasyons: Portable Environmental Sensor Nodes, Battery-Powered Data Loggers, Industrial Sensor and Control Nodes, Smart Measurement Instruments, Low-Power Remote Monitoring, Compact Audio Acquisition Controls.
Portable Environmental Sensor Nodes
The MSP430F123IPW fits portable environmental monitoring because it combines an 8 MHz 16-bit RISC CPU, 8 KB of Flash, and 256 bytes of SRAM with low standby current of 0.7 µA. Its comparator can support threshold-based sensing, while SPI can connect a temperature, humidity, pressure, or gas sensor. The 1.8 V to 3.6 V operating range also supports compact battery-powered boards. Firmware can sample a sensor, store results, transmit over USART, and enter standby between measurements to reduce average energy use.
Inirekomenda
Battery-Powered Data Loggers
The MSP430F123IPW is appropriate for compact data loggers because its five low-power modes support long intervals between samples. The controller provides 8 KB of Flash for firmware and nonvolatile data, 256 bytes of SRAM for temporary records, and an SPI interface for an external memory or sensor. Its less-than-6-µs standby wake-up time allows prompt measurement activity. Use the USART to transfer records to a host, and verify regulator quiescent current because total logger energy depends on both the MCU and attached sensors.
Inirekomenda
Industrial Sensor and Control Nodes
The MSP430F123IPW supports compact industrial sensor nodes that need deterministic control and low standby consumption. Its 16-bit RISC processor executes control logic at up to 8 MHz, the comparator handles simple analog thresholding, and the timer supports periodic measurement or actuator timing. SPI provides a local bus for converters and sensors, while USART can connect to a longer-distance controller. The 28-pin TSSOP package simplifies conventional surface-mount assembly, and the -40 °C to +85 °C range supports industrial temperature conditions.
Inirekomenda
Smart Measurement Instruments
The MSP430F123IPW fits smart measurement instruments where a small processor, low power, and mixed-signal control are valuable. The comparator can implement fast threshold detection, the timer can coordinate sampling intervals, and USART or SPI can connect a display, sensor, or configuration interface. Its 256-byte SRAM supports short working buffers, while 8 KB of Flash accommodates control firmware and calibration parameters. The 1.8 V minimum supply supports low-voltage analog sections, although the complete instrument still requires appropriate analog isolation, reference design, and calibration.
Inirekomenda
Low-Power Remote Monitoring
The MSP430F123IPW can serve as the supervisory controller in a low-power remote-monitoring assembly. Its 0.7 µA standby current and less-than-6-µs wake-up time permit frequent health checks without keeping the processor continuously active. USART supports a simple communications link, SPI supports local sensors or external memory, and the comparator can detect a crossing or fault condition. The design should specify the sleep duration, peripheral disable sequence, and regulator efficiency because the MCU figures represent only part of the total remote-node consumption.
Inirekomenda
Compact Audio Acquisition Controls
The MSP430F123IPW can control compact audio-acquisition equipment when low standby power and mixed-signal control are more important than high multimedia processing throughput. Its timer supports sample-clock or event management, USART handles configuration, and SPI can connect a serial audio device or external storage. The comparator may assist with simple peak or threshold monitoring. The 8 KB Flash and 256-byte SRAM constrain buffering, so the audio stream should be processed or transmitted rather than retained entirely on the MCU. External converters and clocking components remain necessary for professional audio performance.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for MSP430F123IPW — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | MSP430F1232IPWR | MSP430F122IPWR | MSP430F1101IPW |
|---|---|---|---|---|
| Package | TSSOP-28 (PW) | TSSOP-28 (PW) | TSSOP-28 (PW) | TSSOP-28 (PW) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Maximum Clock Frequency | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Flash Memory | 8 KB | 8 KB | 4 KB | 2 KB |
| SRAM | 256 bytes | 256 bytes | 256 bytes | 128 bytes |
Pangunahing mga Pagkakaiba
- Higher memory capacity than the MSP430F1101IPW (kumpara saMSP430F1101IPW)
- Twice the Flash capacity of the MSP430F122IPWR (kumpara saMSP430F122IPWR)
- Closest documented same-package memory match (kumpara saMSP430F1232IPWR)
Talaan ng Disenyo
Budget the entire sleep path, not only the MSP430F123IPW. The device draws approximately 0.7 µA in standby and 0.1 µA in off mode with RAM retention, but a sensor, pull resistors, regulator, and communications interface can dominate standby consumption. Disable unused peripherals before sleeping, remove external loads where practical, and measure the assembled board across each operating mode.
Place the supply bypass capacitor adjacent to the MSP430F123IPW power pins and route the ground return without splitting the plane beneath the device. The 28-pin TSSOP footprint requires adequate spacing between adjacent traces and adequate board area for a thermal path. Confirm the manufacturer land pattern and pin-1 orientation against the package drawing before releasing artwork.
Do not treat a same-package MSP430 variant as a guaranteed firmware-compatible replacement. Check every pin, alternate function, interrupt source, timer arrangement, clock setting, and peripheral feature in the manufacturer pin-description and device documentation. The MSP430F1232IPWR is the closest candidate, while MSP430F122IPWR and MSP430F1101IPW require particular attention to reduced memory.
Keep SPI traces short and provide a continuous return path beneath the signals when practical. Separate the comparator input from switching nodes and high-current loads to reduce threshold noise. When the SPI bus connects to external circuitry, include a defined series-resistor strategy and use the manufacturer recommendations for signal-integrity and electromagnetic compatibility.
Impormasyon ng Pagsunod sa Kautusan
Compliance declarations were not explicitly identified in the manufacturer product information or part-ordering documentation.
