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Texas Instruments MSP430F1132IPW
- Part No.:
- MSP430F1132IPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430F1132IPW.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,397
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Product details
Overview
MSP430F1132IPW from Texas Instruments is an ultralow-power 16-bit RISC microcontroller with 8KB+256B Flash, 256B RAM, 10-bit 200-ksps ADC with internal reference and autoscan, 16-bit Timer_A with three capture/compare registers, and serial communication support via UART/SPI (not implemented in this variant). It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F1132IPW datasheet, MSP430F1132IPW pinout, MSP430F1132IPW application, or MSP430F1132IPW equivalent, key selection criteria include active-mode current (200 µA @ 1 MHz, 2.2 V), wake-up time (<6 µs from standby), five power-saving modes, 20-pin TSSOP package compatibility, and absence of integrated USART - distinguishing it from MSP430x12x2 family members.
Technical Context
The MSP430F1132IPW implements a 16-bit RISC CPU with 125 ns instruction cycle time, constant generators for code efficiency, and a digitally controlled oscillator (DCO) enabling sub-6 µs wake-up from LPM3/LPM4. Its basic clock module supports multiple sources: internal resistor, 32-kHz crystal, high-frequency crystal, resonator, or external clock.
It integrates a 10-bit SAR ADC with sample-and-hold, internal voltage reference, data transfer controller (DTC), and autoscan across six analog inputs (A0–A4, VeREF−). The 16-bit Timer_A3 provides three capture/compare registers for PWM, interval timing, and input capture - all accessible via dedicated I/O pins on Port 1 and Port 2.
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 program memory and 256B RAM; sufficient for firmware with ADC-driven signal processing and low-level peripheral control. |
| ADC Resolution & Speed | 10-bit SAR ADC with 200 ksps sampling rate and integrated reference; supports precision analog sensing without external reference components. |
| Power Consumption | 200 µA active @ 1 MHz/2.2 V; 0.7 µA standby; 0.1 µA off mode with RAM retention - optimized for multi-year battery life in intermittent-sensing applications. |
| Wake-Up Time | <6 µs from standby (LPM3) to active mode; critical for ultra-low-duty-cycle wake-on-event designs like motion-triggered sensors. |
| Operating Voltage | 1.8 V to 3.6 V supply range; compatible with single-cell Li-ion, LiFePO₄, or dual-cell alkaline battery configurations. |
| Package | 20-pin TSSOP (PW); 4.4 mm × 6.5 mm footprint with 0.65 mm pitch - suitable for compact PCB layouts requiring manual or automated assembly. |
Pinout & Package
Package: 20-pin Plastic TSSOP (PW), JEDEC MO-153 compliant, with exposed thermal pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK | Timer_A clock input / ADC conversion clock | Configurable as external timer clock source or ADC sampling trigger; enables synchronous timing control between analog acquisition and digital processing. |
| P1.1/TA0 | Timer_A capture/compare channel 0 I/O | Supports edge-triggered input capture or PWM output generation on dedicated hardware channel - no CPU overhead required. |
| P1.2/TA1 | Timer_A capture/compare channel 1 I/O | Independent timing channel for second PWM waveform or input event timestamping, isolated from TA0 operation. |
| P1.3/TA2 | Timer_A capture/compare channel 2 I/O | Third hardware timer channel for auxiliary timing tasks such as LED dimming or sensor polling intervals. |
| P1.4/SMCLK/TCK | Sub-main clock output / JTAG test clock | Provides SMCLK signal for peripheral synchronization or serves as TCK during boundary-scan programming and debug. |
| P2.0/ACLK/A0 | ACLK output / ADC analog input A0 | Delivers low-jitter 32-kHz clock to peripherals while simultaneously acting as first ADC channel - reduces pin count in clocked sensor interfaces. |
| P2.3/TA1/A3/VREF− | Timer_A channel 1 / ADC A3 / negative reference | Shared pin allows use as analog input (A3), timer function (TA1), or ADC reference ground - requires careful multiplexing in firmware. |
| P2.4/TA2/A4/VREF+ | Timer_A channel 2 / ADC A4 / positive reference | Enables internal reference sourcing (VREF+/VREF−) for ratiometric ADC measurements, eliminating need for external reference ICs. |
| RST/NMI | Reset or non-maskable interrupt input | Active-low asynchronous reset pin; also accepts NMI events for critical fault handling independent of global interrupt enable state. |
| XIN / XOUT | Crystal oscillator input / output | Supports 32.768 kHz watch crystal for precise real-time clocking or higher-frequency crystals for system clock generation. |
Key Features
| Feature | Design Value |
|---|---|
| Five software-selectable low-power modes | Enables fine-grained energy management: LPM0–LPM4 allow trade-offs between wake-up latency, peripheral activity, and current draw - essential for duty-cycled IoT endpoints. |
| Integrated 10-bit ADC with DTC and autoscan | Automatically sequences conversions across up to six analog inputs and stores results in RAM without CPU intervention - reduces firmware complexity and power consumption. |
| Digital-controlled oscillator (DCO) | Stabilizes in <6 µs after wake-up; eliminates crystal start-up delay and enables rapid response to external interrupts in battery-sensitive applications. |
| Programmable code protection via security fuse | Prevents unauthorized read-out of Flash contents during debugging or field deployment - protects proprietary algorithms and calibration data. |
| Supply voltage brownout protection | Generates internal reset when VCC drops below safe operating threshold; ensures reliable startup/shutdown behavior and prevents erratic MCU operation. |
Applications
| Portable Gas Sensor Node | Wireless Temperature Monitor |
|---|---|
|
Use Scenario: Battery-powered handheld device measuring CO₂ or VOC levels using electrochemical sensors with analog outputs. IC Role / Device Role / Timing Role: Primary controller executing sensor biasing, ADC sampling, digital filtering, and low-power sleep scheduling. Use Value: 200 µA active current and 0.1 µA RAM-retention mode extend AA battery life beyond 5 years in 1-minute wake/sleep cycles. |
Use Scenario: Remote indoor/outdoor temperature logger transmitting data hourly via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: System orchestrator managing DS18B20 1-Wire interface, RTC synchronization, and RF packet framing. Use Value: Sub-6 µs wake-up from LPM4 ensures minimal latency between timer interrupt and ADC sampling - critical for accurate timestamped readings. |
| Smart Meter Tamper Detection | Low-Power Industrial Controller |
|
Use Scenario: Utility meter detecting physical tampering via accelerometer or magnetic switch inputs. IC Role / Device Role / Timing Role: Event-triggered processor capturing mechanical shock signatures using Timer_A input capture and ADC oversampling. Use Value: Three independent Timer_A capture channels (P1.1/P1.2/P1.3) enable simultaneous edge detection on multiple tamper sensors without software polling. |
Use Scenario: DIN-rail mounted controller monitoring 4–20 mA loop signals in HVAC or pump systems. IC Role / Device Role / Timing Role: Analog front-end processor converting current-loop signals via precision ADC with internal VREF+/VREF−. Use Value: Integrated 10-bit ADC reference (VREF+/VREF− on P2.4/P2.3) eliminates external reference drift and improves long-term measurement stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultralow-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F1122IPW | 4KB Flash, same 20-pin TSSOP package, identical peripheral set except reduced program memory. | Suitable for simpler firmware with smaller code footprint; lacks capacity for complex filtering or communication stacks. | Select when application logic fits within 4KB Flash and cost sensitivity outweighs future firmware scalability needs. |
| MSP430F1132IRHB | Same 8KB Flash/256B RAM spec but in 32-pin QFN (RHB) package with additional NC and reserved pins. | Offers better thermal performance and routing flexibility; not pin-compatible due to different pin count and layout. | Choose for space-constrained designs needing improved thermal dissipation or where QFN assembly is preferred over TSSOP. |
Compared with MSP430F1132IPW, the F1122IPW reduces Flash by 50% but maintains identical power profile and analog capability - ideal for cost-optimized variants. The F1132IRHB retains full functionality but requires PCB redesign due to 32-pin QFN packaging and altered pin mapping.
Availability
MSP430F1132IPW is available at Aetrix Electronics and suitable for portable sensor nodes, battery-powered instrumentation, and industrial monitoring systems requiring stable component supply across multi-year production cycles.
Supply support for MSP430F1132IPW 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 specializing in analog, embedded processing, and connectivity technologies with decades of expertise in low-power design.
The MSP430F1132IPW belongs to the MSP430x11x2 ultralow-power mixed-signal MCU family, engineered specifically for extended-battery-life applications in portable measurement, sensing, and metering systems.
FAQ
Does MSP430F1132IPW include a hardware USART for UART or SPI communication?
No, MSP430F1132IPW does not integrate a hardware USART. Unlike the MSP430x12x2 series, the x11x2 family (including MSP430F1132IPW) omits the USART0 peripheral. Serial communication must be implemented via bit-banged GPIO or external transceivers. This distinction is explicitly confirmed in the functional block diagram and peripheral file map of the SLAS361D datasheet.
What is the maximum ADC input channel count supported by MSP430F1132IPW?
MSP430F1132IPW supports six analog input channels: A0 through A4 (on P2.0, P2.1, P2.2, P2.3, P2.4), plus VeREF− (P2.3) and VeREF+ (P2.4) used as reference terminals. The ADC10 module's autoscan mode can sequentially convert all enabled channels without CPU involvement, as documented in the ADC10 section of SLAS361D.
Is MSP430F1132IPW pin-compatible with MSP430F1232IPW?
No, MSP430F1132IPW is not pin-compatible with MSP430F1232IPW. The former uses a 20-pin TSSOP package with six-port P2 I/Os and no Port P3, while the latter uses a 28-pin TSSOP package with eight-port P3 I/Os including USART0 signals. Pin assignments, count, and peripheral mappings differ fundamentally - confirmed by comparing their respective pin designation tables in SLAS361D.
What debug interface does MSP430F1132IPW support?
MSP430F1132IPW supports JTAG-based debugging and programming via the TEST, TCK (P1.4), TMS (P1.5), TDI (P1.6), and TDO (P1.7) pins. These functions are multiplexed on Port 1 pins and require proper pull-up/pull-down configuration per the JTAG electrical specification. The device does not support Spy-Bi-Wire (SBW) in this revision.
Can MSP430F1132IPW operate from a single 1.8 V supply?
Yes, MSP430F1132IPW is fully specified to operate across 1.8 V to 3.6 V. At 1.8 V, it maintains full functionality including Flash programming, ADC operation with internal reference, and Timer_A operation - verified in the Absolute Maximum Ratings and Recommended Operating Conditions sections of SLAS361D.
MSP430F1132IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430x1xx
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- 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:
MSP430F1132IPW FAQ
1.How can I place an order for MSP430F1132IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F1132IPW 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 MSP430F1132IPW reliable?
The price and inventory of MSP430F1132IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F1132IPW is usually 5 days.
3.What payment methods are accepted for MSP430F1132IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F1132IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F1132IPW?
MSP430F1132IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F1132IPW 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 MSP430F1132IPW?
For technical support, including MSP430F1132IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F1132IPW requirements.
6.How does Aetrix verify that MSP430F1132IPW is sourced from the original manufacturer or authorized distributors?
All MSP430F1132IPW 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 MSP430F1132IPW meets industry standards.
7.What is the process for return or replacement of MSP430F1132IPW?
All MSP430F1132IPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F1132IPW, 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 MSP430F1132IPW part is unused and in its original packaging.
Return procedure for MSP430F1132IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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