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Texas Instruments MSP430F1132IDW
- Part No.:
- MSP430F1132IDW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MSP430F1132IDW.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:161
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Product details
Overview
MSP430F1132IDW 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, Timer_A with three capture/compare registers, and serial communication support via UART/SPI (in x12x2 only - not present 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 MSP430F1132IDW datasheet, MSP430F1132IDW pinout, MSP430F1132IDW application, or MSP430F1132IDW equivalent, key selection criteria include active-mode current (200 µA @ 1 MHz, 2.2 V), wake-up time (<6 µs from standby), 20-pin TSSOP/SOWB package compatibility, and absence of integrated USART - distinguishing it from MSP430x12x2 family members.
Technical Context
The MSP430F1132IDW implements a 16-bit RISC CPU with constant generators and 125 ns instruction cycle time, paired with five software-selectable low-power modes (LPM0–LPM4) optimized for extended battery life. Its basic clock module supports multiple sources: internal DCO, 32-kHz crystal, high-frequency crystal, resonator, or external clock.
It integrates a 10-bit ADC10 with sample-and-hold, data transfer controller (DTC), and internal voltage reference; Timer_A3 with three capture/compare registers; and JTAG-based programming with BSL support over UART using P1.1/TX and P2.2/RX. No USART peripheral is included - confirmed by functional block diagram and terminal function tables specific to MSP430x11x2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125 ns instruction cycle; register-to-register operations execute in one CPU clock cycle. |
| Flash / RAM | 8KB + 256B Flash program memory and 256B RAM - sufficient for compact firmware with analog processing and low-power scheduling logic. |
| ADC Performance | 10-bit SAR ADC at 200 ksps with internal reference, autoscan, and DTC - enables unattended multi-channel sensor sampling 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 - suitable for multi-year coin-cell operation. |
| Wake-Up Latency | <6 µs from standby mode via interrupt - critical for responsive event-driven sensing in wake-on-interrupt applications. |
| Clock Sources | DCO, 32-kHz crystal, high-frequency crystal, external resistor, or external clock - provides flexible timing without requiring multiple external components. |
| Operating Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, LiFePO₄, or dual alkaline battery supplies. |
Pinout & Package
Package: 20-pin Plastic TSSOP (PW) or SOWB (DW); lead pitch 0.65 mm; body dimensions 6.5 × 4.4 mm (TSSOP), 7.8 × 5.6 mm (SOWB).
| 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; supports precise timing synchronization. |
| P1.1/TA0/BSL_TX | Timer_A channel 0 / BSL transmit | Primary UART TX pin for bootloader programming; also serves as capture/compare output for PWM or timing signals. |
| P1.2/TA1 | Timer_A channel 1 | Dedicated I/O for second capture/compare function - used for dual-edge timing, pulse-width measurement, or complementary PWM. |
| P1.3/TA2 | Timer_A channel 2 | Third capture/compare channel - enables three independent PWM outputs or simultaneous edge-capture on separate signals. |
| P1.4/SMCLK/TCK | Sub-main clock output / JTAG test clock | Provides SMCLK to peripherals or acts as TCK during boundary-scan programming; dual-role reduces pin count overhead. |
| P2.0/ACLK/A0 | ACLK output / ADC analog input A0 | Delivers low-jitter 32-kHz clock to real-time modules while simultaneously serving as first ADC channel - simplifies clock tree design. |
| P2.2/TA0/A2/BSL_RX | Timer_A channel 0 alternate / ADC A2 / BSL receive | Shared pin for UART RX in bootloader mode and analog input - requires careful reset-state handling to avoid conflict. |
| RST/NMI | Reset / non-maskable interrupt input | Active-low pin that initiates power-on reset or triggers NMI service routine - essential for fault recovery and watchdog timeout handling. |
| XIN / XOUT | Crytal oscillator input / output | Supports 32.768 kHz watch crystal for RTC functionality or higher-frequency crystals up to 8 MHz - enables precision timing without DCO calibration. |
| VCC / VSS | Supply voltage / ground | Single 1.8–3.6 V supply rail; no separate analog/digital domains - simplifies PCB layout but requires clean decoupling near VCC pin. |
Key Features
| Feature | Design Value |
|---|---|
| Five Low-Power Modes (LPM0–LPM4) | Enables dynamic power scaling: LPM4 draws only 0.1 µA with RAM retention - ideal for long-duration sleep between sensor readings. |
| Integrated 10-bit ADC10 with DTC | Autoscan across up to eight channels and automatic result storage to RAM eliminates CPU polling - reduces active time and energy per measurement. |
| JTAG + BSL Programming | On-chip debug interface and UART-based bootloader allow field firmware updates without dedicated programmer hardware - lowers production and maintenance cost. |
| Digital Controlled Oscillator (DCO) | Stabilizes in <6 µs from any low-power mode - ensures rapid response to interrupts without waiting for crystal startup delay. |
| Programmable Code Protection | Security fuse prevents unauthorized read-out of Flash contents - protects proprietary algorithms and calibration data in deployed devices. |
| Supply Brownout Protection | Hardware reset triggered when VCC drops below threshold - prevents erratic behavior or flash corruption during battery depletion or transient dips. |
Applications
| Portable Gas Sensor Node | Wireless Temperature Logger |
|---|---|
Use Scenario: Battery-powered CO₂ or VOC sensor with periodic analog measurements and RF transmission. IC Role / Device Role / Timing Role: Main system controller managing ADC sampling, low-power scheduling, and SPI interface to RF transceiver. Use Value: 0.1 µA off-mode current extends 2000 mAh coin-cell life beyond 2 years; 200 ksps ADC captures fast transients during gas exposure events. |
Use Scenario: Remote environmental monitor logging temperature every 10 minutes using thermistor or digital sensor. IC Role / Device Role / Timing Role: Timekeeping and data acquisition unit using ACLK from 32-kHz crystal and Timer_A for interval wakeup. Use Value: Sub-6 µs wake-up ensures precise 10-minute intervals without drift; internal reference eliminates need for external voltage reference IC. |
| Smart Meter Tamper Detection | Low-Power Industrial Controller |
Use Scenario: Utility meter detecting physical tampering via vibration or magnetic field changes using analog front-end. IC Role / Device Role / Timing Role: Analog signal conditioner and event-triggered processor with interrupt-driven GPIO and ADC inputs. Use Value: Three independent Timer_A capture channels enable simultaneous edge detection on multiple sensors; 0.7 µA standby minimizes quiescent drain. |
Use Scenario: Embedded PLC module controlling solenoids and reading analog process signals in factory equipment. IC Role / Device Role / Timing Role: Real-time control engine executing PID loops and driving discrete I/O via P1/P2 ports. Use Value: 16-bit RISC architecture delivers deterministic 125 ns instruction timing for sub-millisecond control cycles; Flash memory allows in-field firmware updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultralow-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F1122IDW | 4KB Flash, same 20-pin package, identical peripherals and power specs - lower code density but reduced cost. | Suitable for simpler firmware with smaller memory footprint; no change in board layout or power design required. | Select when application firmware fits within 4KB and cost sensitivity outweighs future scalability needs. |
| MSP430F1132IPW | Identical electrical and functional specification; differs only in TSSOP (PW) vs SOWB (DW) packaging - same pinout and thermal profile. | No functional difference; choice depends solely on assembly process (reflow vs wave solder) and board space constraints. | Choose based on manufacturing preference: PW offers better thermal dissipation and standard pick-and-place compatibility. |
Compared with MSP430F1132IDW, the F1122IDW reduces Flash capacity by half but maintains identical low-power performance and peripheral set, while the F1132IPW is a direct package variant - both preserve full software compatibility and require no schematic or firmware modification.
Availability
MSP430F1132IDW is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered sensor networks, and industrial monitoring systems requiring stable component supply and long-term lifecycle support.
Supply support for MSP430F1132IDW 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 MCU innovation.
The MSP430x11x2 product line was designed specifically for ultralow-power mixed-signal applications where battery life, analog integration, and deterministic real-time response are critical - such as portable medical devices and environmental sensors.
FAQ
Does the MSP430F1132IDW include a hardware USART peripheral?
No, the MSP430F1132IDW does not include a USART. That peripheral is exclusive to the MSP430x12x2 family (e.g., MSP430F1232). The MSP430F1132IDW relies on software UART or external transceivers for serial communication. All documentation, functional block diagrams, and terminal function tables confirm USART0 is absent in MSP430x11x2 devices like the MSP430F1132IDW.
What is the maximum operating frequency of the MSP430F1132IDW?
The MSP430F1132IDW supports a maximum CPU clock (MCLK) of 8 MHz, achievable using the internal DCO or external high-frequency crystal. Its 125 ns instruction cycle time corresponds to 8 MHz operation. The device datasheet specifies stable operation up to this frequency across the full 1.8–3.6 V supply range and −40°C to 85°C temperature range.
Can the MSP430F1132IDW perform ADC conversions without CPU involvement?
Yes, the MSP430F1132IDW's ADC10 module includes a Data Transfer Controller (DTC) that automatically stores conversion results in RAM without CPU execution. When configured with autoscan and DTC enabled, it can sequence through up to eight analog inputs and write results directly to memory - reducing active-mode time and total system energy per measurement cycle.
Is the MSP430F1132IDW pin-compatible with the MSP430F1232IDW?
No, the MSP430F1132IDW (20-pin DW/PW) is not pin-compatible with the MSP430F1232IDW (28-pin DW/PW). They differ in pin count, I/O allocation (P3 port present only in x12x2), and peripheral mapping (e.g., USART pins on P3). Board redesign is required to migrate between these families - no shared footprint or direct replacement exists.
What debug interfaces are supported by the MSP430F1132IDW?
The MSP430F1132IDW supports JTAG via the TEST, TCK, TMS, TDI, and TDO pins (mapped to P1.x) for full-featured emulation and flash programming. It also supports the Bootstrap Loader (BSL) over UART using P1.1 (TX) and P2.2 (RX) - enabling firmware updates without JTAG hardware, provided security fuse remains unblown.
MSP430F1132IDW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Series:
- MSP430x1xx
- Packaging:
- Tube
- 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:
MSP430F1132IDW FAQ
1.How can I place an order for MSP430F1132IDW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F1132IDW 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 MSP430F1132IDW reliable?
The price and inventory of MSP430F1132IDW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F1132IDW is usually 5 days.
3.What payment methods are accepted for MSP430F1132IDW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F1132IDW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F1132IDW?
MSP430F1132IDW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F1132IDW 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 MSP430F1132IDW?
For technical support, including MSP430F1132IDW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F1132IDW requirements.
6.How does Aetrix verify that MSP430F1132IDW is sourced from the original manufacturer or authorized distributors?
All MSP430F1132IDW 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 MSP430F1132IDW meets industry standards.
7.What is the process for return or replacement of MSP430F1132IDW?
All MSP430F1132IDW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F1132IDW, 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 MSP430F1132IDW part is unused and in its original packaging.
Return procedure for MSP430F1132IDW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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