MSP430F133IPM - 8MHz Mixed-Signal MCU | Texas Instruments
MPN: MSP430F133IPM ✓ ActiveMSP430F133IPM Overview
A mixed-signal microcontroller integrates digital processing and analog measurement or comparison functions on one device. In the MSP430 architecture, this MCU belongs to the broader embedded-controller hierarchy: MCU, embedded processor, microcontroller, and semiconductor. The MSP430F133IPM is suited to designs that need local control, serial communications, and analog signal conditioning without requiring a separate discrete ADC or comparator.
Key device features include an 8 MHz operating speed, 8 KB of program Flash, and 256 B of SRAM. Its 12-bit ADC provides the primary analog conversion path, while the on-chip comparator supports thresholding, signal comparison, and basic mixed-signal control functions. SPI and UART interfaces expand the available options for connecting sensors, external converters, displays, or other embedded peripherals.
The 16-bit RISC processing core provides 16-bit registers and constant generators that support efficient control-oriented instruction execution, as described by the available manufacturer and comparison data. The 256 B SRAM is modest compared with current high-density MCUs, so firmware must account for stack depth, buffering, and working-memory limits. The 8 KB Flash capacity is best suited to compact control firmware rather than large graphical interfaces or extensive protocol stacks.
Typical uses include industrial sensor acquisition, low-power instrumentation, compact control modules, data loggers, and embedded products that measure an analog input and communicate results through SPI or UART. The LQFP-64 package provides more I/O than small-outline microcontroller packages and can simplify board routing in designs that already use this footprint.
Designers should confirm the exact pin assignments and peripheral multiplexing for the LQFP-64 implementation before schematic capture. Component values such as input-voltage limits, ADC accuracy, converter timing, and detailed electrical limits are not stated in the supplied verified snippets and must be checked against the current manufacturer datasheet before production release.
This product record combines verified manufacturer specifications, distributor references, source-qualified alternatives, comparison parameters, and application guidance. It also highlights which electrical details still require datasheet confirmation, helping engineers distinguish verified purchasing information from parameters that should not be inferred from an orderable part listing.
Drop-in alternatives for MSP430F133IPM — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MSP430F133IPM (same form factor and footprint) — differing in Package, ADC Resolution, Comparator, Serial Interfaces, CPU Architecture.
MSP430F123IPM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MSP430F148IPM
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F149IPM
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F168IPM
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F169IPM
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →MSP430F133IPM Maximum Ratings & Electrical Characteristics
| CPU Speed | 8 MHz |
| Architecture | 16-bit RISC |
| Program Memory | 8 KB Flash |
| RAM | 256 B |
| ADC Resolution | 12 bit |
| Comparator | 1 comparator |
| Serial Interfaces | SPI and UART |
| USART Count | 1 USART |
| Package | 64-pin LQFP (PM) |
| Package Family | LQFP |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 °C to +85 °C |
MSP430F133IPM lqfp Pin Configuration Guide
Pin configuration for MSP430F133IPM (lqfp package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for MSP430F133IPM.
Refer to the datasheet for full pin configuration.
Typical Applications
MSP430F133IPM is suitable for 6 applications: Industrial Sensor Acquisition, Low-Power Data Logger, Digital Thermometer and Monitor, Communications Controller, Precision Control Module, Portable Measurement Product.
Industrial Sensor Acquisition
The MSP430F133IPM fits compact industrial sensor modules because it combines an 8 MHz 16-bit RISC core with a 12-bit ADC and comparator in a 64-pin LQFP package. The MCU can acquire an analog sensor signal, compare it against a threshold, and apply control logic without requiring a separate ADC or comparator. SPI and UART provide paths to external sensors, industrial transceivers, or a host controller. According to the Texas Instruments product summary, the verified memory configuration is 8 KB Flash and 256 B SRAM, so firmware should avoid large buffers and perform protocol processing with bounded data. Exact channel counts, reference voltage, acquisition timing, and input impedance must be checked against the current manufacturer datasheet before selecting input-conditioning components or setting the acquisition rate.
Recommended
Low-Power Data Logger
The MSP430F133IPM is applicable to compact data loggers that periodically sample a sensor and store or transmit measurements through a serial interface. Its 8 MHz 16-bit RISC processor provides enough control throughput for acquisition sequencing, while the 256 B SRAM supports a constrained working set. The 12-bit ADC serves as the measurement front end, and UART or SPI can move data to a memory device or communications module. According to the verified TI listing, the device contains 8 KB of Flash and is specified from -40 °C to +85 °C. Duty-cycled logging can help manage energy use, but exact low-power modes, wake-up timing, and peripheral leakage are not present in the supplied snippets and must be verified before calculating battery life.
Recommended
Digital Thermometer and Monitor
The MSP430F133IPM can serve as the controller in a digital thermometer or threshold-monitoring product by sampling a scaled analog signal with its 12-bit ADC and evaluating the result with the integrated comparator. The 8 MHz 16-bit RISC core can perform calibration, filtering, display updates, and alert handling, while SPI or UART supports a display, sensor, or communications module. According to the Texas Instruments product summary, the MCU provides 8 KB Flash, 256 B SRAM, and a 64-pin LQFP package. Those resources suit compact firmware rather than large local storage. Sensor excitation, ADC reference stability, resolution relative to noise, and calibration behavior are not quantified in the supplied data, so they must be established from the manufacturer datasheet and the selected sensor specification.
Recommended
Communications Controller
The MSP430F133IPM is suitable for a small communications endpoint or protocol bridge that must perform local control alongside serial data transfer. Its verified SPI and UART interfaces can connect to a radio, transceiver, display, or external controller, while the 8 MHz 16-bit RISC core handles framing, state management, and response timing. The 8 KB Flash and 256 B SRAM constrain buffer size, making short frame processing and streaming transfers more practical than large protocol stacks. According to the manufacturer listing, the MCU is available in a 64-pin LQFP (PM) package and a -40 °C to +85 °C temperature range. Peripheral multiplexing, UART feature support, SPI clock limits, and exact serial timing are not stated in the supplied snippets and must be checked before interface timing is frozen.
Recommended
Precision Control Module
The MSP430F133IPM supports compact control modules that combine analog feedback with deterministic embedded logic. The 12-bit ADC can monitor a process or actuator signal, the comparator can support fast threshold decisions, and the 8 MHz 16-bit RISC core can calculate control actions. SPI and UART allow the module to exchange commands and diagnostic data with a higher-level controller. According to the Texas Instruments manufacturer summary, the device includes 8 KB Flash, 256 B SRAM, and a 64-pin LQFP package. Control-loop timing must be calculated with the actual peripheral clock configuration rather than assuming the full 8 MHz CPU rate applies to every function. PWM channels, timer resources, ADC latency, and pin-mux options remain to be verified from the manufacturer documentation.
Recommended
Portable Measurement Product
The MSP430F133IPM can be used in a portable instrument that measures an analog condition and reports results through a wired serial connection. The 12-bit ADC provides the primary measurement function, the comparator assists with threshold or alert decisions, and the 8 MHz 16-bit RISC core can perform calibration and data formatting. According to the verified TI data, the MCU is available in a 64-pin LQFP package, has 8 KB of Flash and 256 B of SRAM, and is listed for -40 °C to +85 °C. Its small memory budget favors event-driven rather than continuously buffered logging. Before defining battery, display, or sensor interfaces, verify the exact supply range, low-power modes, ADC performance, and pin assignment because those details were not included in the supplied web results.
Recommended
Recommended Products Summary
Engineering reference data for MSP430F133IPM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MSP430F123IPM | MSP430F148IPM | MSP430F149IPM | MSP430F168IPM | MSP430F169IPM |
|---|---|---|---|---|---|---|
| Package | 64-pin LQFP (PM) | 64-pin LQFP (PM) | 64-pin LQFP (PM) | 64-pin LQFP (PM) | 64-pin LQFP (PM) | 64-pin LQFP (PM) |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
Key Differentiators
- Verified mixed-signal integration (vs MSP430F148IPM)
- Exact verified memory configuration (vs MSP430F149IPM)
- Directly documented LQFP-64 ordering configuration (vs MSP430F168IPM)
Design Notes
Assign every LQFP-64 net from the current Texas Instruments pin table before routing, because the supplied snippets verify the 64-pin package but do not reproduce signal names or alternate functions. Place decoupling and analog components close to their associated pins, and route the ADC input away from fast SPI and UART nets. Do not reuse the candidate alternatives in this record without checking each pin mapping; their common package size is not sufficient evidence of electrical drop-in compatibility.
Confirm the MSP430F133IPM core and I/O supply limits, allowable voltage combinations, and power-sequencing requirements in the current manufacturer datasheet. The verified snippets establish 8 KB Flash, 256 B SRAM, an 8 MHz CPU, and a 12-bit ADC, but do not state the supply-voltage range. Select the regulator and decoupling values only after those limits and the analog-reference requirements are known; do not infer supply values from the processor speed.
Budget the 256 B SRAM carefully because the stack, ADC results, protocol buffers, and peripheral state share this limited resource. Use the 12-bit ADC only after verifying its sample time, reference source, input range, and channel configuration. The integrated comparator can assist threshold decisions, but its propagation and routing characteristics are not stated in the supplied data and should not be inferred for safety-critical timing.
Compliance Information
The supplied verified snippets do not explicitly state material-compliance declarations for MSP430F133IPM. Check the current TI product page and applicable manufacturer declarations for the exact orderable MPN.
