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Texas Instruments MSP430F1132IRHBT
- Part No.:
- MSP430F1132IRHBT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430F1132IRHBT.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,061
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Product details
Overview
MSP430F1132IRHBT from Texas Instruments is an ultralow-power 16-bit RISC microcontroller with 8KB flash, 256B RAM, 10-bit 200-ksps ADC, Timer_A3 with three capture/compare registers, and integrated reference. It operates from 1.8 V to 3.6 V and supports five power-saving modes, enabling battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F1132IRHBT datasheet, MSP430F1132IRHBT pinout, MSP430F1132IRHBT application, or MSP430F1132IRHBT equivalent, key selection criteria include active-mode current (200 µA @ 1 MHz, 2.2 V), wake-up time (<6 µs from standby), ADC resolution and sampling rate, flash memory size, and QFN-32 package compatibility for space-constrained designs.
Technical Context
The MSP430F1132IRHBT implements a 16-bit RISC CPU with constant generators and seven addressing modes, achieving 125 ns instruction cycle time. Its basic clock module integrates a digitally controlled oscillator (DCO), 32-kHz crystal support, and selectable internal resistors - enabling rapid wake-up and flexible low-frequency timing.
This device belongs to the MSP430x11x2 family and lacks USART0 hardware; it features two 8-bit I/O ports (P1, P2) with interrupt-capable pins, analog inputs A0–A4, and dedicated ADC reference terminals (VREF+/VREF−). It supports JTAG debugging and serial BSL programming via P1.1/TXD and P2.2/RXD.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125 ns instruction cycle; enables deterministic real-time control in resource-constrained embedded systems. |
| Flash / RAM | 8KB + 256B flash / 256B RAM; sufficient for firmware with ADC data processing, sensor fusion, and low-level protocol stacks. |
| ADC Performance | 10-bit, 200 ksps SAR ADC with internal reference, sample-and-hold, autoscan, and DTC; supports continuous multi-channel acquisition without CPU intervention. |
| Power Consumption | Active mode: 200 µA @ 1 MHz, 2.2 V; Standby: 0.7 µA; Off mode (RAM retention): 0.1 µA - optimized for multi-year battery life in intermittent-sensing applications. |
| Wake-Up Time | <6 µs from standby mode; allows rapid response to external events while maintaining ultralow average power. |
| Clock Sources | DCO, 32-kHz crystal, high-frequency crystal, external resistor, or external clock; provides design flexibility across cost, accuracy, and startup time requirements. |
| Operating Voltage | 1.8 V to 3.6 V; compatible with single-cell Li-ion, LiFePO₄, and dual-cell alkaline battery systems without regulation overhead. |
Pinout & Package
Package: 32-pin QFN (RHB), 5 mm × 5 mm, exposed thermal pad (recommended connection to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC (Pin 30) | Supply voltage input | Primary power rail (1.8–3.6 V); must be decoupled locally with 100 nF ceramic capacitor. |
| VSS (Pin 1) | Ground reference | System ground; connects to QFN thermal pad for thermal and electrical integrity. |
| RST/NMI (Pin 5) | Reset / nonmaskable interrupt | Active-low reset input; also serves as NMI source for critical fault handling. |
| XIN (Pin 3), XOUT (Pin 2) | Crystal oscillator interface | Supports 32.768 kHz watch crystal for low-power real-time clock operation. |
| P1.0/TACLK/ADC10CLK (Pin 21) | Timer/ADC clock input | Configurable clock source for Timer_A and ADC10; enables synchronous sampling or gated timing. |
| P2.3/TA1/A3/VREF− (Pin 18) | Analog input / reference terminal | ADC channel A3 input or negative reference voltage; requires stable low-impedance source when used as VREF−. |
| P2.4/TA2/A4/VREF+ (Pin 19) | Analog input / reference terminal | ADC channel A4 input or positive reference voltage; supports internal or external VREF+ generation. |
| TEST (Pin 29) | JTAG test mode select | Enables boundary-scan and debug functionality; must be pulled high during normal operation. |
Key Features
| Feature | Design Value |
|---|---|
| Five software-selectable low-power modes | Enables system-level energy optimization: LPM4 draws only 0.1 µA with RAM retention, ideal for long-idle sensor endpoints. |
| Digital-controlled oscillator (DCO) | Stabilizes in <6 µs; eliminates crystal startup delay and supports fast wake-up from ultra-low-power states. |
| Data Transfer Controller (DTC) for ADC10 | Automatically stores conversion results to RAM without CPU involvement - reduces active time and extends battery life. |
| Programmable code protection | Security fuse prevents unauthorized read-out of flash contents, protecting firmware IP in deployed devices. |
| Supply voltage brownout protection | Generates internal reset if VCC drops below safe operating threshold, preventing erratic behavior during battery depletion. |
Applications
| Portable Gas Sensor Node | Smart Thermostat Sensor Module |
|---|---|
|
Use Scenario: Battery-powered CO₂ or VOC sensor with periodic analog measurements and wireless wake-up. IC Role / Device Role / Timing Role: Main controller executing ADC sampling, signal conditioning, and low-power sleep scheduling; uses DCO for sub-6-µs wake-up on interrupt. Use Value: 0.1 µA off-mode current and integrated 10-bit ADC enable >5-year operation on CR2032, eliminating external signal chain components. |
Use Scenario: Wireless temperature/humidity sensing node in HVAC ducts with ambient power constraints. IC Role / Device Role / Timing Role: Analog front-end processor acquiring multi-channel thermistor and capacitive humidity readings; manages 32-kHz RTC for scheduled reporting. Use Value: Internal reference and autoscan ADC reduce BOM count and calibration complexity while maintaining ±1°C accuracy over 0–70°C. |
| Industrial Current Loop Transmitter | Energy Harvesting Remote Monitor |
|
Use Scenario: 4–20 mA loop-powered field device measuring pressure or flow with local diagnostics. IC Role / Device Role / Timing Role: Signal conditioner and safety monitor; uses Timer_A3 for PWM-driven analog output and watchdog for fail-safe shutdown. Use Value: Brownout protection and programmable security fuse ensure reliable operation under unstable loop supply and prevent firmware tampering. |
Use Scenario: Solar- or piezo-harvested environmental monitor transmitting data every 10 minutes. IC Role / Device Role / Timing Role: Power-aware system manager coordinating energy storage, ADC acquisition, and RF wake-up; leverages LPM3 with ACLK active. Use Value: 0.7 µA standby current and crystal-accurate ACLK allow precise duty-cycling with minimal quiescent drain on micro-energy sources. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultralow-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F1122IRHBT | 4KB flash, same 256B RAM, identical peripherals and package; lower memory capacity. | Suitable for simpler sensor firmware with no floating-point math or large lookup tables. | Select when firmware size is ≤4KB and cost sensitivity outweighs future scalability needs. |
| MSP430F1232IRHBT | 8KB flash, 256B RAM, adds USART0 (UART/SPI), Port P3 (8 I/O), and enhanced interrupt vectoring. | Required for designs needing wired serial communication or additional GPIO without external logic. | Choose when UART-based configuration, SPI sensor interfacing, or extra analog inputs (A5–A7) are mandatory. |
Compared with MSP430F1132IRHBT, the F1122 offers reduced memory at lower cost for minimal firmware, while the F1232 adds communication capability and I/O at the expense of higher active current and larger code footprint - making each optimal for distinct system architecture trade-offs.
Availability
MSP430F1132IRHBT is available at Aetrix Electronics and suitable for portable gas detection, smart building sensor modules, and industrial 4–20 mA transmitters requiring stable component supply and long-term manufacturability.
Supply support for MSP430F1132IRHBT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader focused on analog and embedded processing technologies, with decades of expertise in low-power design and mixed-signal integration.
The MSP430x11x2 product line was engineered specifically for ultralow-power portable measurement applications, emphasizing extended battery life, integrated analog peripherals, and rapid wake-up responsiveness.
FAQ
What is the maximum ADC sampling rate supported by the MSP430F1132IRHBT?
The MSP430F1132IRHBT supports a maximum ADC sampling rate of 200 ksps (kilo-samples per second) using its 10-bit successive approximation register (SAR) core. This rate is achievable with internal reference and DTC enabled, allowing full-resolution conversions without CPU overhead. The actual sustained rate depends on clock configuration and channel count, but the hardware specification remains 200 ksps as stated in the SLAS361D datasheet.
Does the MSP430F1132IRHBT include a hardware UART or USART peripheral?
No, the MSP430F1132IRHBT does not include a hardware UART or USART peripheral. It belongs to the MSP430x11x2 family, which omits the USART0 module present in the x12x2 series. Serial communication must be implemented via bit-banged GPIO or external ICs. The device does support BSL programming using P1.1 (TXD) and P2.2 (RXD) pins under bootloader control, but this is not a runtime UART interface.
What package type and pin count does the MSP430F1132IRHBT use?
The MSP430F1132IRHBT uses a 32-pin QFN (Quad Flat No-lead) package with the RHB designation, measuring 5 mm × 5 mm and featuring an exposed thermal pad. This package is confirmed in the SLAS361D datasheet's "Available Options" table and pin diagrams, and is distinct from the 20-pin TSSOP or SOWB variants offered for other members of the x11x2 family.
How many I/O pins are available on the MSP430F1132IRHBT, and which ports do they belong to?
The MSP430F1132IRHBT provides 14 digital I/O pins: eight on Port 1 (P1.0–P1.7) and six on Port 2 (P2.0–P2.5). Port 3 is not implemented in the x11x2 family. All P1 pins and P2.0–P2.5 support interrupt-on-change, and P2.3/P2.4 double as ADC reference inputs (VREF−/VREF+), while P2.0–P2.4 also serve as analog inputs A0–A4.
What is the wake-up time from standby mode for the MSP430F1132IRHBT?
The MSP430F1132IRHBT wakes up from standby mode (LPM3) in less than 6 µs, as specified in the SLAS361D datasheet. This rapid transition is enabled by the integrated digitally controlled oscillator (DCO), which stabilizes quickly without requiring external crystal startup delay - a critical feature for event-driven sensing applications where latency and energy efficiency are both constrained.
MSP430F1132IRHBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- MSP430x1xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- -
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 14
- 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)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F1132IRHBT FAQ
1.How can I place an order for MSP430F1132IRHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F1132IRHBT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430F1132IRHBT reliable?
The price and inventory of MSP430F1132IRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F1132IRHBT is usually 5 days.
3.What payment methods are accepted for MSP430F1132IRHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F1132IRHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F1132IRHBT?
MSP430F1132IRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F1132IRHBT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430F1132IRHBT?
For technical support, including MSP430F1132IRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F1132IRHBT requirements.
6.How does Aetrix verify that MSP430F1132IRHBT is sourced from the original manufacturer or authorized distributors?
All MSP430F1132IRHBT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430F1132IRHBT meets industry standards.
7.What is the process for return or replacement of MSP430F1132IRHBT?
All MSP430F1132IRHBT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F1132IRHBT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430F1132IRHBT part is unused and in its original packaging.
Return procedure for MSP430F1132IRHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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