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MSP430F1232IRHBR
Texas Instruments
IC MCU 16BIT 8KB FLASH 32VQFN
12475 Pcs New Original In Stock
MSP430 CPU16 MSP430x1xx Microcontroller IC 16-Bit 8MHz 8KB (8K x 8 + 256B) FLASH 32-VQFN (5x5)
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5.0 / 5.0
- (272 Ratings)
MSP430F1232IRHBR
Product Overview
1385145
DiGi Electronics Part Number
MSP430F1232IRHBR-DGManufacturer
Texas Instruments
MSP430F1232IRHBR
Description
IC MCU 16BIT 8KB FLASH 32VQFNInventory
12475 Pcs New Original In Stock
MSP430 CPU16 MSP430x1xx Microcontroller IC 16-Bit 8MHz 8KB (8K x 8 + 256B) FLASH 32-VQFN (5x5)
Quantity
Minimum 1
Minimum 1
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MSP430F1232IRHBR Technical Specifications
Category
Embedded, Microcontrollers
Packaging
Cut Tape (CT) & Digi-Reel®
Series
MSP430x1xx
Product Status
Active
DiGi-Electronics Programmable
Verified
Core Processor
MSP430 CPU16
Core Size
16-Bit
Speed
8MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
22
Program Memory Size
8KB (8K x 8 + 256B)
Program Memory Type
FLASH
EEPROM Size
-
RAM Size
256 x 8
Voltage - Supply (Vcc/Vdd)
1.8V ~ 3.6V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Surface Mount
Supplier Device Package
32-VQFN (5x5)
Package / Case
32-VFQFN Exposed Pad
Base Product Number
MSP430F1232
Datasheet & Documents
Manufacturer Product Page
MSP430F1232IRHBR Specifications
HTML Datasheet
MSP430F1232IRHBR-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
2 (1 Year)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.31.0001
Additional Information
Other Names
-MSP430A019IRHBR-NDR
-296-16795-1-DG
-296-16795-1-NDR
-MSP430A019IRHBR
-MSP430F1232IRHBR-NDR
2156-MSP430F1232IRHBR
-MSP430A065IRBHR-NDR
-MSP430A065IRBHR
TEXTISMSP430F1232IRHBR
296-16795-1-NDR
296-16795-1
296-16795-2
296-16795-2-NDR
-296-16795-1
296-16795-6
296-16795-6-NDR
Standard Package
3,000
Reviews
5.0/5.0-(Show up to 5 Ratings)
de desembre 02, 2025
他們的售後服務周到細心，讓我用得很安心，是值得信賴的合作伙伴。
de desembre 02, 2025
Ce qui me plaît chez DiGi Electronics, c’est leur fiabilité à des prix très compétitifs.
de desembre 02, 2025
I highly recommend DiGi Electronics for their unwavering product quality and honest pricing.
de desembre 02, 2025
The professionalism of their customer service team really sets them apart.
de desembre 02, 2025
I highly appreciate their ongoing support even after the purchase is complete.
de desembre 02, 2025
I always enjoy shopping on their site due to its simplicity and clarity.
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Frequently Asked Questions (FAQ)
What are the critical design risks when replacing the MSP430F1232IRHBR with a pin-compatible competitor like the NXP LPC810M021FN8 in a low-power sensor node application?
Replacing the MSP430F1232IRHBR with the NXP LPC810M021FN8 introduces significant power architecture and peripheral compatibility risks. While both are 32-pin QFN microcontrollers, the LPC810 operates at 2.4V–3.6V versus the MSP430F1232IRHBR’s wider 1.8V–3.6V range, potentially causing brownout issues in battery-powered systems near end-of-life voltage. Additionally, the LPC810 lacks integrated 10-bit ADC channels (it has no ADC at all), requiring external components that increase BOM cost and power draw—negating the MSP430F1232IRHBR’s ultra-low-power advantage in always-on sensing applications. Always verify sleep current profiles and peripheral mapping before substitution to avoid unexpected wake-up latency or functional gaps.
How does the exposed pad on the 32-VQFN package of the MSP430F1232IRHBR affect PCB layout and thermal reliability in high-density industrial designs?
The exposed thermal pad on the MSP430F1232IRHBR’s 32-VQFN (5x5) package is essential for heat dissipation but demands careful PCB design to prevent soldering defects and ensure long-term reliability. You must include a matching thermal land pattern with multiple via-in-pad connections (typically 4–9 vias of 0.3mm diameter) to a ground plane to avoid tombstoning during reflow and to maintain junction-to-ambient thermal resistance within safe limits. In high-density layouts, insufficient copper pour or misaligned vias can cause localized hotspots, especially at 8MHz operation under continuous ADC sampling. TI recommends following the SLOA139 layout guidelines precisely—deviations risk MSL2 moisture-related failures during assembly and reduced MTBF in -40°C to 85°C environments.
Can the MSP430F1232IRHBR reliably replace an older MSP430F1121A in a legacy design without firmware changes, and what hidden timing risks should I evaluate?
While the MSP430F1232IRHBR shares the same CPU16 core and instruction set as the MSP430F1121A, direct drop-in replacement carries firmware and timing risks due to architectural differences. The MSP430F1232IRHBR includes a hardware multiplier and enhanced clock system (e.g., DCO calibration), which may alter interrupt latency and peripheral timing if firmware assumes legacy clock behavior. Additionally, the flash memory wait-state configuration differs—running code from flash at 8MHz without proper FCTL register settings can cause unpredictable resets. Always revalidate critical timing loops, UART baud rates, and watchdog intervals in-context, and update linker scripts to account for the larger 8KB flash + 256B info memory layout to prevent stack overflow into calibration data.
What are the real-world limitations of using the internal oscillator of the MSP430F1232IRHBR for UART communication in noisy industrial environments, and when should I consider an external crystal?
The internal oscillator of the MSP430F1232IRHBR, while convenient for cost-sensitive designs, has ±1% initial accuracy and drifts with temperature and supply voltage—making it unsuitable for reliable UART communication in industrial settings without oversampling or protocol-level error handling. In environments with EMI or wide temperature swings (-40°C to 85°C), cumulative timing errors can exceed UART tolerance (typically ±3–4%), leading to framing errors or dropped packets, especially at higher baud rates (>9600). For robust RS-485 or Modbus implementations, TI recommends adding a 32.768kHz external crystal for RTC stability or a full-speed crystal (e.g., 8MHz) with load capacitors matched to the XT2IN/XT2OUT pins. This adds ~2–5µA sleep current but eliminates communication resets and improves field reliability.
How does the lack of EEPROM on the MSP430F1232IRHBR impact data retention strategies in field-deployed devices, and what are the best practices for emulating non-volatile storage in flash?
The MSP430F1232IRHBR lacks on-chip EEPROM, forcing developers to emulate non-volatile storage using its 8KB flash—a process that introduces wear-leveling and power-failure risks in field-deployed devices. Flash sectors (typically 64B segments) endure only ~10,000 write cycles, so frequent parameter updates (e.g., calibration data, counters) will degrade memory prematurely. Implement a wear-leveling algorithm across multiple flash segments and use a header-based log structure to track active pages. Always disable interrupts during flash writes (via __disable_interrupt() and FCTL unlock sequences) and include a power-loss detection circuit (leveraging the built-in BOR) to abort writes cleanly. For mission-critical data, consider an external I²C EEPROM (e.g., AT24C02D) despite added cost, as it simplifies endurance management and reduces risk of bricking the MSP430F1232IRHBR during firmware updates.
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MSP430F1232IRHBR CAD Models
Texas Instruments MSP430F1232IRHBR PCB symbols & footprints
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