MSP430F1132IRHBT - 16-bit 8MHz 8KB Flash MCU | TI
MPN： MSP430F1132IRHBT ✓ 啟用中MSP430F1132IRHBT 概覽
An MCU (microcontroller unit) is a single-chip computer that integrates a processor core, memory, and peripherals into one package. Within the power-management hierarchy of embedded systems, ultra-low-power MCUs such as the MSP430 family occupy the battery-operated endpoint of the spectrum, where energy per instruction matters more than raw throughput.
Key features include a supply voltage range of 1.8V to 3.6V, five power-saving modes, wake-up from standby in less than 6 microseconds, and an FLL+ frequency-locked loop for flexible clock generation. Ultralow-power figures are exceptional: 200 uA active at 1 MHz and 2.2V, 0.7 uA standby, and 0.1 uA off-mode with RAM retention, extending battery life by years in portable instruments.
Technically, the device uses a 16-bit RISC CPU with 16-bit registers and a 125-ns instruction cycle time, paired with a 10-bit ADC, Timer_A, and SPI/UART serial interfaces. The Flash-based memory supports in-system programming, easing field upgrades. The Scan IF capability supports background sensing applications.
Typical applications include battery-powered portable measurement instruments, metering front ends, sensor acquisition nodes using the 10-bit ADC, and low-power communication endpoints using SPI/UART.
When designing, budget clock sources carefully: the FLL+ lets you trade speed for current, so run at the lowest frequency that meets your real-time deadline.
This page synthesizes distributor availability data, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 MSP430F1132IRHBT — 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。
MSP430F1232IRHBT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MSP430F1222IRHBT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MSP430F1122IRHBT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MSP430F1111AIRHBT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MSP430F1101AIRHBT
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
MSP430F1132IRHBT 最大額定值與電氣特性
| Core | MSP430 CPU16 16-bit RISC |
| 最大時脈頻率 | 8 MHz |
| Flash Memory | 8KB (8K x 8 + 256B) |
| SRAM | 256 B |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Active Mode Current | 200 uA at 1 MHz, 2.2 V |
| Standby Mode Current | 0.7 uA |
| Off Mode Current (RAM Retention) | 0.1 uA |
| Wake-Up Time From Standby | < 6 us |
| Instruction Cycle Time | 125 ns |
| ADC Resolution | 10-bit |
| Communication Interfaces | SPI, UART |
| Timers | Timer_A |
| Power Saving Modes | 5 |
| Clock System | FLL+ frequency-locked loop |
| 工作溫度 | -40C to +85C (I grade) |
| 封裝 | 32-VQFN (5x5 mm), RHBT |
| 安裝類型 | Surface Mount |
MSP430F1132IRHBT 32-vqfn (5x5 mm), rhbt 腳位配置指南
MSP430F1132IRHBT（32-vqfn (5x5 mm), rhbt 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： MSP430F1132IRHBT.
請參閱 資料表 以查看完整腳位配置。
典型應用
MSP430F1132IRHBT 適用於 6 應用s: Battery-Powered Portable Measurement, Sensor Acquisition Nodes, Low-Power Communication Endpoints, Metering Front Ends, Handheld Instruments and Test Probes, Industrial Monitoring and Control.
Battery-Powered Portable Measurement
The MSP430F1132IRHBT was architected specifically for portable battery measurement instruments: 200 uA active current at 1 MHz/2.2V, 0.7 uA standby, and 0.1 uA off-mode with RAM retention allow a CR2032 coin cell to power the system for years in duty-cycled use. The sub-6-microsecond wake-up from standby lets the MCU sleep between samples and respond instantly to sensor events, while the FLL+ clock system scales frequency (and current) to the task at hand. With a 1.8V to 3.6V supply range, the design runs directly from the battery without a regulator, eliminating quiescent losses.
推薦
Sensor Acquisition Nodes
With an integrated 10-bit ADC, Timer_A for precise sampling intervals, and SPI for external converters, the MSP430F1132IRHBT serves as a compact sensor acquisition controller. The 8KB Flash accommodates calibration tables, filtering firmware, and communication stacks in a single chip, while 256B SRAM handles sample buffering. Designers typically trigger ADC conversions from Timer_A at fixed intervals, average results in RAM, and push data over UART - all within the microamp-class energy budget that defines the MSP430x1xx family.
推薦
Low-Power Communication Endpoints
The on-chip USART supporting SPI and UART makes the MSP430F1132IRHBT suitable for low-power communication endpoints such as wireless module front ends and industrial sensor links. The MCU can sleep at 0.7 uA between messages, wake in under 6 microseconds on a received interrupt, unpack the frame, and respond - an energy profile ideal for RS-232/RS-485 nodes and sub-GHz radio bridges. The 8 MHz CPU executes protocol handling fast enough to return to sleep within milliseconds, minimizing per-transaction charge consumption.
推薦
Metering Front Ends
MSP430 devices are widely deployed in energy and flow metering. The MSP430F1132IRHBT's 10-bit ADC digitizes analog front-end outputs while Timer_A provides accurate integration windows; the 16-bit RISC core performs accumulation and scaling math in firmware. The 0.1 uA RAM-retention mode preserves calibration data across battery replacement events, and the industrial -40C to +85C I-grade temperature range suits outdoor meter enclosures. Flash-based memory enables field recalibration without socketed parts.
推薦
Handheld Instruments and Test Probes
Handheld test tools benefit from the MSP430F1132IRHBT's balance of responsiveness and efficiency: the 125-ns instruction cycle at 8 MHz gives snappy user-interface response, while five power-saving modes extend shift-long battery operation. The 8KB Flash holds menu-driven firmware and lookup tables; SPI connects display drivers or precision converters. Wake-up from standby in under 6 microseconds means the device can sit dormant until a button press or trigger event, then immediately begin measurements.
推薦
Industrial Monitoring and Control
In industrial monitoring nodes, the MSP430F1132IRHBT's I-grade (-40C to +85C) rating, brownout-safe 1.8V to 3.6V operation, and 16-bit core provide dependable low-cost control. UART connectivity links to field buses and telemetry radios, while the 10-bit ADC supervises analog alarms. Its 0.7 uA standby current suits battery-backed nodes that must survive power outages, and the 8KB Flash retains application and event-log firmware through field updates - important for distributed installations where physical access is expensive.
推薦
推薦產品摘要
工程參考資料，適用於 MSP430F1132IRHBT — 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 | MSP430F1232IRHBT | MSP430F1222IRHBT | MSP430F1122IRHBT | MSP430F1101AIRHBT |
|---|---|---|---|---|---|
| Package | 32-VQFN (5x5 mm), RHBT | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same | 32-VQFN (5x5 mm) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Flash Memory | 8KB | 8KB | 4KB | 4KB | 1KB |
| SRAM | 256B | 256B | 256B | 256B | 128B |
| Maximum CPU Frequency | 8 MHz | 8 MHz | 8 MHz | 8 MHz | 8 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Standby Current | 0.7 uA | 0.7 uA | 0.7 uA | 0.7 uA | 0.7 uA |
主要差異化特點
- Double the Flash for code headroom (對比MSP430F1222IRHBT)
- Full SPI/UART connectivity (對比MSP430F1122IRHBT)
- Industry-defining standby current (對比Generic 8-bit MCUs (e.g., PIC16/ATmega class))
設計說明
Design the power budget around the three documented operating points: 200 uA active at 1 MHz/2.2V, 0.7 uA standby, and 0.1 uA off-mode with RAM retention. Duty-cycling is the key lever: sleep at 0.7 uA between Timer_A-driven samples and the average current can stay near single-digit microamps. Because the part runs from 1.8V to 3.6V, powering directly from a coin cell removes regulator quiescent current. If a regulator is required, choose one with Iq well below the MCU standby current (for example, a sub-1-uA LDO such as the XC9209/XC6209 class).
Decouple DVCC with a 100 nF ceramic capacitor placed within 2 mm of the VQFN pad, plus bulk 4.7-10 uF near the battery. Separate analog (AVCC/AVSS) and digital grounds with a single-point star connection to protect the 10-bit ADC from digital return currents. The 5x5 mm VQFN thermal pad area is small, so keep high-current traces away from the analog pins. Route the JTAG/Test and RST/NMI pins to a 2.54 mm or Tag-Connect footprint for in-system programming access.
Verify Flash sizing before migration: lower-memory family members (F1122, F1222, F1101A) are pin-compatible but offer only 4KB or less versus 8KB, and C compiler overhead can push borderline images over budget. Second, the 8 MHz maximum applies to the CPU via the FLL+; do not exceed it with DCO settings. Third, respect the sub-6-us wake-up claim by keeping the VCO retained in standby - entering deeper off modes trades wake-up latency and SRAM contents for the 0.1 uA floor.
合規資訊
Compliance data was not present in the provided verified web data; consult the TI product page quality section for MSP430F1132 RoHS/REACH status.
