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Texas Instruments MSP430F135IPMR
- Part No.:
- MSP430F135IPMR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430F135IPMR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,086
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Product details
Overview
MSP430F135IPMR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 16KB+256B flash, 512B RAM, a 12-bit ADC with 8 channels and <10 µs conversion time, one USART (UART/SPI), two 16-bit timers (Timer_A3 and Timer_B3), and on-chip comparator. It targets battery-powered sensor systems and portable measurement devices requiring sub-µA standby current and <6 µs wake-up.
For engineers reviewing the MSP430F135IPMR datasheet, MSP430F135IPMR pinout, MSP430F135IPMR application, or MSP430F135IPMR equivalent, this page delivers verified specifications, functional block context, package-validated pin roles, real-world use cases, and technically grounded alternative options - all aligned to the SLAS272H production datasheet (Rev. May 2018).
Technical Context
The MSP430F135IPMR implements a 16-bit CPU with constant generators and hardware multiplier for optimized code efficiency in low-power embedded control. Its clock system integrates DCO, ACLK, SMCLK, and MCLK domains with support for LFXT1 (32.768 kHz crystal) and XT2 (up to 8 MHz) oscillators, enabling precise timing across active and LPM3 modes.
Peripherals are tightly coupled to the bus architecture: ADC12 uses dedicated internal reference and sample-and-hold; Timer_B3 provides seven capture/compare registers with shadow registers for glitch-free PWM; USART0 supports full-duplex asynchronous UART and synchronous SPI operation - all accessible via 48 GPIO pins across six I/O ports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle and hardware multiplier for efficient math-intensive firmware. |
| Memory | 16KB + 256B flash (in-system programmable, no external VPP) and 512B RAM for real-time data buffering. |
| ADC | 12-bit ADC12 with 8 input channels, internal reference, autoscan, and <10 µs conversion - suitable for multi-sensor sampling without CPU intervention. |
| Power Modes | Five low-power modes including LPM3 (1.6 µA standby) and LPM4 (0.1 µA RAM retention), enabling multi-year battery life in metering applications. |
| Timers | Timer_A3 (3 capture/compare registers) and Timer_B3 (3 capture/compare with shadow registers) for precise PWM, capture, and interval timing. |
| Communication | One USART (USART0) supporting UART (asynchronous) and SPI (synchronous) protocols - sufficient for sensor-to-host telemetry or peripheral control. |
| Supply Range | 1.8 V to 3.6 V operation - compatible with single-cell Li-ion, LiFePO₄, or dual-cell alkaline power sources. |
Pinout & Package
LQFP-64 (PM) package, 10 mm × 10 mm body size, exposed thermal pad connected to DVSS per TI mechanical data.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Digital supply voltage (positive) | Primary digital rail powering CPU, timers, and digital I/O; requires local 100 nF decoupling. |
| DVSS (Pin 63) | Digital ground | Reference return for digital logic and I/O; must be low-impedance and separated from analog ground at single-point connection. |
| AVCC (Pin 64) | Analog supply voltage (positive) | Independent analog rail for ADC and comparator; isolated from DVCC to minimize noise coupling into precision conversions. |
| AVSS (Pin 62) | Analog ground | Dedicated analog return path; routed separately to avoid digital switching noise contamination of ADC reference. |
| P6.0–P6.7 (Pins 59–6, 2–6) | Analog inputs A0–A7 | Eight dedicated ADC input channels with programmable gain and sampling control - enables simultaneous multi-sensor acquisition. |
| RST/NMI (Pin 58) | Reset / non-maskable interrupt | Active-low reset input with built-in brown-out detection; also serves as NMI source for critical fault handling or bootloader entry. |
| TCK/TMS/TDO/TDI (Pins 57, 56, 54, 55) | JTAG test interface | Four-pin boundary-scan interface for programming, debugging, and fuse configuration - no external voltage required for BSL. |
| USART0 Pins (P3.0–P3.5) | SPI/UART signal set | STE0, SIMO0, SOMI0, UCLK0, UTXD0, URXD0 collectively enable full-duplex serial communication with sensors or host MCUs. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Standby current of 1.6 µA and wake-up from LPM3 in <6 µs - extends battery life in intermittent-sampling applications like environmental monitors. |
| Integrated 12-bit ADC | Hardware autoscan across 8 channels with internal reference eliminates need for external precision voltage references in cost-sensitive designs. |
| Single USART with dual-mode support | Configurable as UART (for RS-232/RS-485 transceivers) or SPI (for flash memory or digital sensors), reducing BOM count and PCB footprint. |
| Two independent 16-bit timers | Timer_A3 handles basic timing and PWM; Timer_B3 provides enhanced capture/compare with shadow registers - enabling synchronized motor control or pulse-width modulation. |
| On-chip comparator | Comparator_A with programmable hysteresis and output routing to timers allows zero-crossing detection or threshold-triggered interrupts without CPU polling. |
Applications
| Smart Utility Metering | Portable Gas Detector |
|---|---|
|
Use Scenario: Battery-powered residential electricity/water meter collecting pulse counts, temperature, and tamper status over 10+ years. IC Role / Device Role / Timing Role: Primary system controller managing ADC sampling of shunt voltage, RTC via ACLK, and UART transmission to concentrator every 15 minutes. Use Value: 0.1 µA LPM4 current preserves coin-cell energy; integrated comparator detects magnetic tampering; 12-bit ADC resolves 0.1% accuracy requirements. |
Use Scenario: Handheld industrial gas analyzer using electrochemical sensors requiring periodic bias voltage control and analog signal conditioning. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring conditioned analog outputs, applying temperature compensation, and driving OLED display via SPI. Use Value: On-chip 12-bit ADC with internal reference eliminates external op-amp/reference ICs; Timer_B3 generates precise sensor bias waveforms; 16KB flash stores calibration tables. |
| Wireless Sensor Node | Industrial Temperature Monitor |
|
Use Scenario: Zigbee/Thread node measuring ambient humidity, pressure, and acceleration in HVAC ducts with 2-year battery life. IC Role / Device Role / Timing Role: Central data aggregator reading I²C sensors, performing FFT preprocessing, and triggering RF module only on event detection. Use Value: Five power-saving modes allow dynamic sleep-state selection; hardware multiplier accelerates sensor fusion math; USART0 interfaces directly to RF SoC via UART. |
Use Scenario: DIN-rail mounted panel monitor logging thermocouple readings across 8 zones in manufacturing equipment. IC Role / Device Role / Timing Role: Dedicated ADC controller acquiring cold-junction compensation and linearized thermocouple voltages at 10 Hz with timestamping. Use Value: ADC12 autoscan sequences all 8 channels without CPU overhead; internal reference ensures stability across -40°C to +85°C; 512B RAM buffers 128 samples before SD card write. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F133IPMR | 8KB+256B flash, 256B RAM, identical peripherals and pinout - lower memory capacity only. | Suitable for simpler firmware with minimal calibration data or smaller state machines. | Select when application firmware fits within 8KB flash and does not require extended RAM for buffering or complex algorithms. |
| MSP430F2350IRHBT | 16KB flash, 512B RAM, but newer F2xx series with enhanced USCI (replaces USART), higher max clock (16 MHz), and improved ADC linearity. | Better suited for designs needing higher throughput, USB connectivity (via external PHY), or tighter ADC INL specs. | Choose for new designs prioritizing long-term availability and margin in timing-critical signal processing - not drop-in compatible due to different pinout and register mapping. |
Compared with MSP430F135IPMR, MSP430F133IPMR offers identical functionality at reduced memory cost, while MSP430F2350IRHBT provides architectural upgrades at the expense of migration effort - making MSP430F135IPMR optimal for legacy-compatible, cost-sensitive, ultra-low-power deployments.
Availability
MSP430F135IPMR is available at Aetrix Electronics and suitable for smart utility metering, portable gas detection, and wireless sensor nodes requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for MSP430F135IPMR 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 ultra-low-power design.
The MSP430F13x family was engineered specifically for battery-operated measurement systems demanding nanowatt-level standby, fast wake-up, and integrated analog front-ends - targeting metering, sensing, and portable instrumentation markets.
FAQ
What is the maximum operating frequency of the MSP430F135IPMR?
The MSP430F135IPMR operates up to 8 MHz using the XT2 oscillator or DCO-calibrated SMCLK. Its 16-bit RISC core achieves a 125-ns instruction cycle at this rate, enabling responsive real-time control without compromising ultra-low-power operation in active mode (280 µA at 1 MHz, 2.2 V).
Does the MSP430F135IPMR support in-system programming without external high voltage?
Yes, the MSP430F135IPMR supports serial onboard programming via its built-in bootloader (BSL) using only the standard supply voltage (1.8–3.6 V). No external programming voltage is required, and code protection is enforced by a security fuse - simplifying field firmware updates and eliminating HV programming infrastructure.
How many analog input channels does the MSP430F135IPMR ADC support?
The MSP430F135IPMR integrates a 12-bit ADC12 module with eight analog input channels (A0–A7) mapped to P6.0 through P6.7. These inputs support internal reference, sample-and-hold, and hardware autoscan - allowing unattended sequential conversion of multiple sensors with minimal CPU involvement.
Is the MSP430F135IPMR pin-compatible with other devices in the MSP430F14x family?
No, the MSP430F135IPMR is not pin-compatible with MSP430F14x devices. While both use 64-pin LQFP packages, the MSP430F135IPMR has only one USART and Timer_B3 (3 capture/compare), whereas MSP430F14x variants include two USARTs and Timer_B7 (7 capture/compare) - resulting in differing peripheral pin allocations and incompatible signal mappings.
What are the key differences between MSP430F135IPMR and MSP430F133IPMR?
The MSP430F135IPMR and MSP430F133IPMR share identical peripherals, pinout, and power characteristics, but differ in memory: MSP430F135IPMR provides 16KB+256B flash and 512B RAM, while MSP430F133IPMR offers 8KB+256B flash and 256B RAM. This makes MSP430F135IPMR suitable for larger firmware images and more extensive data buffering.
MSP430F135IPMR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430x1xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- SPI, UART/USART
- Peripherals:
- POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 16KB (16K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F135IPMR FAQ
1.How can I place an order for MSP430F135IPMR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F135IPMR 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 MSP430F135IPMR reliable?
The price and inventory of MSP430F135IPMR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F135IPMR is usually 5 days.
3.What payment methods are accepted for MSP430F135IPMR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F135IPMR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F135IPMR?
MSP430F135IPMR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F135IPMR 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 MSP430F135IPMR?
For technical support, including MSP430F135IPMR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F135IPMR requirements.
6.How does Aetrix verify that MSP430F135IPMR is sourced from the original manufacturer or authorized distributors?
All MSP430F135IPMR 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 MSP430F135IPMR meets industry standards.
7.What is the process for return or replacement of MSP430F135IPMR?
All MSP430F135IPMR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F135IPMR, 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 MSP430F135IPMR part is unused and in its original packaging.
Return procedure for MSP430F135IPMR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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