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Texas Instruments MSP430F157IPM
- Part No.:
- MSP430F157IPM
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-LQFP
- Datasheet:
-
MSP430F157IPM.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 64LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:698
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Product details
Overview
MSP430F157IPM from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 32KB+256B flash memory, 1KB RAM, dual 12-bit DACs, a 12-bit ADC with internal reference and autoscan, three-channel DMA, two 16-bit timers (Timer_A3 and Timer_B3), USART0 with UART/SPI/I²C modes, and integrated comparator - deployed in portable sensor systems and battery-powered industrial meters.
For engineers reviewing the MSP430F157IPM datasheet, MSP430F157IPM pinout, MSP430F157IPM application, or MSP430F157IPM equivalent, key selection criteria include flash/RAM capacity, dual DAC support, 64-pin QFP package compatibility, LPM0–LPM4 power modes, and absence of USART1 (distinguishing it from MSP430F16x/161x variants).
Technical Context
The MSP430F157IPM implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its clock system includes ACLK, SMCLK, and MCLK derived from DCO, XT1, and XT2 oscillators, with wake-up from standby in under 6 μs.
It integrates peripheral modules directly mapped into memory space: ADC12 with 8-channel analog input (P6.0–P6.7), DAC12 with voltage-output channels on P6.6/DAC0 and P6.7/DAC1, and Timer_B3 with three capture/compare registers (TB0–TB2) - all accessible via standard instructions without external glue logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generators; enables efficient C compilation and deterministic real-time execution. |
| Flash / RAM | 32KB + 256B flash memory and 1KB RAM; supports in-system programming and retains full functionality for firmware updates in field-deployed devices. |
| ADC | 12-bit SAR ADC with 8 input channels, internal reference, sample-and-hold, and autoscan; achieves <10 μs conversion time for high-speed sensor sampling. |
| DAC | Dual 12-bit voltage-output DACs (DAC0/DAC1) on P6.6 and P6.7; enables simultaneous analog waveform generation or precision bias control. |
| Timers | Timer_A3 with three capture/compare registers and Timer_B3 with three capture/compare registers; supports PWM, input capture, and interval timing without CPU overhead. |
| Communication | USART0 supporting UART, SPI, and I²C protocols; provides flexible serial connectivity for sensor interfacing and host communication. |
| Power Modes | Five low-power modes (LPM0–LPM4); standby current 1.1 μA and off-mode (RAM retention) current 0.2 μA enable multi-year battery life in metering applications. |
Pinout & Package
Package: 64-pin plastic quad flat pack (QFP), PM suffix, surface-mount, 10 mm × 10 mm body, 0.5 mm lead pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt | Active-low reset input; also serves as NMI source and BSL entry trigger - critical for safe firmware recovery and debug initialization. |
| P1.0/TACLK | Timer_A Clock Input | External clock source for Timer_A; enables precise event timing independent of system clocks. |
| P2.6/ADC12CLK/DMAE0 | ADC Clock / DMA Trigger | Configurable as ADC conversion clock source or external DMA channel 0 trigger - synchronizes analog acquisition with data movement. |
| P3.1/SIMO0/SDA | USART0 SPI MOSI / I²C Data | Shared function pin supporting SPI master-out-slave-in or I²C bidirectional data line - reduces pin count in multi-protocol designs. |
| P6.6/A6/DAC0 | Analog Input / DAC Output | Primary 12-bit DAC0 voltage output; also functions as ADC channel A6 - enables shared analog I/O resource for feedback or calibration circuits. |
| TCK, TMS, TDI/TCLK, TDO/TDI | JTAG Test Interface | Four-pin boundary-scan interface for programming, emulation, and production testing - required for Flash programming and real-time debugging. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-Power Operation | Active mode at 330 μA @ 1 MHz/2.2 V; LPM4 at 0.2 μA with RAM retention - extends battery life in handheld and remote sensing nodes. |
| Dual 12-Bit DACs | Independent voltage-output DAC0 and DAC1 synchronized via module control - supports dual-loop control or differential signal generation without external DACs. |
| Three-Channel DMA | Hardware-accelerated data transfers between peripherals and memory; eliminates CPU involvement during ADC-to-RAM or RAM-to-DAC streaming. |
| Integrated Comparator_A | On-chip analog comparator with programmable hysteresis and output routing to timers - enables zero-crossing detection or threshold-triggered wake-up. |
| Bootstrap Loader (BSL) | UART-based flash programming using P1.1 (TX) and P2.2 (RX); no external programmer needed for field firmware updates. |
Applications
| Portable Energy Metering | Industrial Sensor Node |
|---|---|
Use Scenario: Battery-powered electricity meter measuring voltage, current, and power factor over extended periods. IC Role / Device Role / Timing Role: Central controller executing metrology algorithms, managing ADC sampling sequences, and driving LCD via GPIO. Use Value: 32KB flash stores complex tariff logic and calibration tables; dual DACs generate reference waveforms for anti-tampering detection. |
Use Scenario: Wireless temperature/humidity node in factory automation with local analog conditioning and digital reporting. IC Role / Device Role / Timing Role: Signal acquisition hub performing ADC reads, filtering, and UART transmission to gateway. Use Value: 1KB RAM buffers sensor data across sleep cycles; LPM3 mode maintains RTC and wakes only on timer or comparator event. |
| Handheld Multimeter | Low-Power Data Logger |
Use Scenario: Field-service multimeter requiring autoranging, continuity beeping, and battery-backed storage. IC Role / Device Role / Timing Role: Mixed-signal processor handling analog front-end control, display refresh, and button debounce. Use Value: Integrated comparator replaces discrete op-amp for continuity test; USART0 drives serial printer or PC upload via UART. |
Use Scenario: Environmental logger recording temperature, pressure, and light intensity every 10 minutes for 6 months. IC Role / Device Role / Timing Role: Autonomous data collector waking from LPM4, acquiring sensors, storing in RAM, then returning to deep sleep. Use Value: 0.2 μA off-mode current ensures >5-year operation on CR2032; 256B information memory stores calibration constants permanently. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F167IPM | Includes USART1 and Timer_B7 (7 CCRs); 32KB flash, 1KB RAM, same PM package. | Supports dual-serial-device communication (e.g., sensor + radio) and more complex PWM timing. | Select when needing second UART/SPI channel or additional Timer_B compare registers. |
| MSP430F156IPM | 24KB+256B flash, 1KB RAM, identical peripheral set and pinout. | Suitable for cost-sensitive designs where firmware footprint fits within 24KB. | Choose for reduced BOM cost where application code size does not exceed 24KB. |
Compared with MSP430F167IPM, the MSP430F157IPM lacks USART1 and Timer_B7 but offers identical flash size and dual DAC capability; versus MSP430F156IPM, it adds 8KB flash for larger algorithm storage while retaining identical power profile and peripheral feature set.
Availability
MSP430F157IPM is available at Aetrix Electronics and suitable for portable energy metering, industrial sensor nodes, handheld multimeters, and low-power data loggers requiring stable component supply and long-term obsolescence management.
Supply support for MSP430F157IPM 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 delivering analog, embedded processing, and connectivity solutions with emphasis on power efficiency and system integration.
The MSP430F157IPM belongs to the MSP430F15x family - designed specifically for ultralow-power mixed-signal applications in battery-operated measurement and control systems.
FAQ
What is the maximum operating frequency of the MSP430F157IPM?
The MSP430F157IPM supports a maximum CPU instruction cycle time of 125 ns, corresponding to 8 MHz operation. Its digitally controlled oscillator (DCO) delivers stable clocking up to this rate, and external crystals (XT1/XT2) can extend system timing precision without increasing active current beyond 330 μA at 1 MHz and 2.2 V.
Does the MSP430F157IPM support I²C communication?
Yes, the MSP430F157IPM supports I²C communication through USART0 configured in I²C mode, using P3.1 (SDA) and P3.3 (SCL). This capability is confirmed in the functional block diagram and terminal functions table of the SLAS368G datasheet, and requires no external level-shifting components for standard 3.3 V operation.
How many analog input channels does the ADC12 module support on the MSP430F157IPM?
The ADC12 module on the MSP430F157IPM supports eight analog input channels (A0–A7), mapped to pins P6.0 through P6.7. All channels are accessible in the 64-pin PM package, and the module includes internal reference, sample-and-hold, and autoscan features - enabling sequential multi-channel acquisition without software intervention.
Is the MSP430F157IPM pin-compatible with the MSP430F167IPM?
Yes, the MSP430F157IPM and MSP430F167IPM share identical 64-pin QFP (PM) packaging and pin assignments for all common peripherals including GPIO, timers, ADC, DAC, and USART0. However, pins P3.6, P3.7, P4.3–P4.6, P5.0–P5.3 are reserved (no connect) on MSP430F157IPM, as they serve USART1 and extended Timer_B functions exclusive to the F16x series.
What development tools are supported for the MSP430F157IPM?
The MSP430F157IPM is supported by TI's MSP-FET430UIF (USB JTAG emulator), MSP-TS430PM64 (target board for PM package), and MSP-GANG430 (production programmer). Its Embedded Emulation Module (EEM) enables full-speed debugging, flash programming, and real-time trace - all documented in the MSP430x1xx Family User's Guide (SLAU049).
MSP430F157IPM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-LQFP
- Series:
- MSP430x1xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 32KB (32K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x12b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F157IPM FAQ
1.How can I place an order for MSP430F157IPM through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F157IPM 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 MSP430F157IPM reliable?
The price and inventory of MSP430F157IPM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F157IPM is usually 5 days.
3.What payment methods are accepted for MSP430F157IPM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F157IPM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F157IPM?
MSP430F157IPM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F157IPM 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 MSP430F157IPM?
For technical support, including MSP430F157IPM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F157IPM requirements.
6.How does Aetrix verify that MSP430F157IPM is sourced from the original manufacturer or authorized distributors?
All MSP430F157IPM 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 MSP430F157IPM meets industry standards.
7.What is the process for return or replacement of MSP430F157IPM?
All MSP430F157IPM units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F157IPM, 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 MSP430F157IPM part is unused and in its original packaging.
Return procedure for MSP430F157IPM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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