MSP430F1232CY - 8MHz 16-Bit MCU with 8KB Flash | Texas Instruments
MPN： MSP430F1232CY ✓ 啟用中MSP430F1232CY 概覽
An ultra-low-power mixed-signal microcontroller combines a processor, analog conversion functions, timers, digital I/O, and communication peripherals in one device. The MSP430 architecture belongs to the microcontroller hierarchy and combines a 16-bit RISC core, on-chip nonvolatile memory, RAM, and mixed-signal peripherals. This integration allows a product to measure an analog input, process it locally, and communicate the result through UART or SPI without requiring several separate integrated circuits.
The MSP430F1232CY operates at up to 8 MHz and provides 8 KB of Flash plus 256 bytes of SRAM. Its mixed-signal resources include a built-in 10-bit analog-to-digital converter with an integrated reference and a data transfer controller, alongside a 16-bit timer. The x12x2 family also supports asynchronous UART and synchronous SPI communication, making the device appropriate for sensor interfaces, compact instruments, industrial controls, and battery-powered embedded products.
Power efficiency is central to the MSP430 architecture. The manufacturer describes a low supply range of 1.8 V to 3.6 V, active current of 200 µA at 1 MHz and 2.2 V, standby current of 0.7 µA, and off-mode RAM-retention current of 0.1 µA. Five power-saving modes allow the processor to remain responsive while limiting consumption during inactive periods. Wake-up from standby occurs in less than 6 µs, supporting duty-cycled measurement and control systems.
Typical applications include low-power sensor nodes, portable measurement instruments, simple data loggers, industrial condition-monitoring equipment, and compact control panels. The ADC supports direct acquisition of analog signals, while UART or SPI provides connectivity to sensors, displays, memory, or a host controller. The 256-byte SRAM places a clear limit on buffering, so applications should use the Flash program memory and external storage intelligently.
Because MSP430F1232CY is offered as die-sale product, board designers must address bare-die handling, die attach, interconnect, inspection, and board-layout requirements before production. A bare die does not provide a conventional lead-frame or molded package, so the physical footprint, pin map, and assembly process cannot be treated like a standard TSSOP or QFP device.
This page organizes the manufacturer's core MCU specifications, interface and memory details, purchasing path, and practical design considerations. It also distinguishes the die-sale MSP430F1232CY from packaged MSP430F1232 variants, helping engineers determine whether the part suits their assembly process before committing a board design to it.
直接替換替代品，適用於 MSP430F1232CY — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品MSP430F1232CY 最大額定值與電氣特性
| Product Type | 16-bit RISC ultra-low-power mixed-signal microcontroller |
| 最大時脈頻率 | 8 MHz |
| Processor Architecture | 16-bit RISC |
| Flash Memory | 8 KB |
| SRAM | 256 bytes |
| ADC Resolution | 10 bits |
| Timer | 16-bit |
| Serial Interfaces | UART and SPI |
| I/O Pin Count | 22 pins |
| 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-Mode Current with RAM Retention | 0.1 µA |
| Power-Saving Modes | 5 modes |
| Standby Wake-Up Time | Less than 6 µs |
| ADC Reference | Integrated |
| Data Transfer Controller | Built in |
| Package Type | Bare die |
| Mounting Method | Die attachment and board-level assembly |
MSP430F1232CY bare die 腳位配置指南
MSP430F1232CY（bare die 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： MSP430F1232CY.
請參閱 資料表 以查看完整腳位配置。
典型應用
MSP430F1232CY 適用於 6 應用s: Battery-Powered Sensor Node, Compact Data Logger, Industrial Condition Monitoring, Portable Measurement Instrument, Low-Power Control Panel, Remote Environmental Monitor.
Battery-Powered Sensor Node
The MSP430F1232CY is suitable for a battery-powered sensor node because its 200 µA active current at 1 MHz and 2.2 V, 0.7 µA standby current, and less-than-6 µs wake-up time support short, duty-cycled measurement intervals. The 10-bit ADC can acquire the sensor output directly, while UART or SPI can transfer readings to a radio or host. Design the system around the 256-byte SRAM limit, retain only essential samples, and include the sensor, regulator, and communication loads in the complete power budget.
Compact Data Logger
A compact data logger can use the MSP430F1232CY's 8 KB Flash, 256 bytes of SRAM, 10-bit ADC, and 16-bit timer to acquire periodic measurements and maintain time-based control functions. The timer supports scheduled sampling, while the ADC's integrated reference simplifies analog front-end design. Because internal RAM is limited, configure the firmware to stream or compress records rather than retaining large histories in SRAM. Flash endurance and erase timing should also be considered when defining the logging interval and data-retention policy.
Industrial Condition Monitoring
The MSP430F1232CY fits industrial condition-monitoring modules that combine periodic analog measurement with low-power status reporting. Its 1.8 V to 3.6 V operating range supports regulated sensor rails, and its five power-saving modes allow the controller to remain idle between samples. The 10-bit ADC is appropriate for slowly changing signals such as temperature, pressure, or level, provided the analog front end limits bandwidth and provides suitable filtering. UART or SPI can connect the monitor to a local gateway.
Portable Measurement Instrument
A portable measurement instrument can use the MSP430F1232CY to combine an 8 MHz 16-bit processor, 10-bit ADC, timer, and serial interfaces in a compact control section. The processor handles acquisition sequencing, calibration, threshold evaluation, and user-command interpretation while the ADC converts the selected analog input. The mixed-signal integration reduces the number of separate interface chips needed for a simple instrument. Validate input range, reference accuracy, acquisition timing, and display or host-interface latency against the required measurement specifications.
Low-Power Control Panel
The MSP430F1232CY can serve as the central controller in a low-power control panel containing analog sensing and serial-connected modules. Its 22 I/O pins support discrete controls and status functions, while UART or SPI handles more data-intensive peripheral connections. The five power-saving modes help reduce consumption when the panel is idle, and standby wake-up in less than 6 µs supports prompt response to an input. Confirm available die pads and signal multiplexing during the bare-die layout and bonding-definition stage.
Remote Environmental Monitor
A remote environmental monitor can use the MSP430F1232CY for low-duty-cycle acquisition from slow-changing environmental sensors. The 10-bit ADC and integrated reference provide a compact measurement front end, while the 16-bit timer organizes sampling intervals. UART or SPI can interface with external sensor devices or a communications module. Standby current of 0.7 µA and off-mode RAM-retention current of 0.1 µA are useful controller-level figures, but battery life depends primarily on the sensor, radio, and regulator behavior between scheduled measurements.
工程參考資料，適用於 MSP430F1232CY — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Package | Bare die |
| Brand | Texas Instruments |
| Product Type | 16-bit RISC mixed-signal microcontroller |
| Maximum Clock Frequency | 8 MHz |
| Flash Memory | 8 KB |
| SRAM | 256 bytes |
| ADC Resolution | 10 bits |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Serial Interfaces | UART and SPI |
| I/O Pin Count | 22 pins |
| Timer | 16-bit |
| Active Current | 200 µA at 1 MHz and 2.2 V |
主要差異化特點
- Mixed-signal integration in a compact low-power MCU (對比A generic 8 MHz microcontroller without integrated conversion)
- Very low controller-level standby consumption (對比A continuously active microcontroller)
- Bare-die configuration for specialized assembly (對比A conventionally packaged MSP430F1232 variant)
設計說明
Treat MSP430F1232CY as a bare-die assembly rather than a standard leaded or molded-package component. Confirm die revision, pad geometry, die orientation, bonding information, keep-out regions, and assembly process before releasing the board layout. Place exposed die pads and routing in accordance with the applicable assembly documentation, and verify that the manufacturing line can inspect, attach, and electrically test the device.
Build the power budget from average current rather than the processor's active-mode figure alone. Multiply current by duration for each operating state, divide by the total measurement cycle, and add the sensor, regulator, pull-network, and communications loads. The device can enter standby in 0.7 µA and wake in less than 6 µs, but external circuits may consume substantially more current unless they also receive controlled power or sleep signals.
Keep analog routing away from switching nodes and high-current return paths, and place analog filtering close to the ADC input. The integrated ADC reference does not remove the need to control source impedance, sampling behavior, and noise at the measured node. Validate the input network against the selected acquisition rate and verify that the bare-die bonding arrangement does not introduce unintended pad-to-pad coupling.
Do not assign pins from a packaged MSP430F1232 drawing directly to the bare-die MSP430F1232CY layout. Package lead numbers and die pad identifiers are different physical interfaces. Obtain the applicable die and bonding documentation, reconcile every required power, ground, programming, reset, analog, and communications connection, and include programming and test access in the board-level plan.
合規資訊
Compliance attributes for the bare-die MSP430F1232CY ordering configuration require confirmation from the manufacturer. AEC-Q100 qualification was not established for this exact ordering option.
