MSP430F110IPW - 8MHz 16-Bit MCU | TI | Embedded Control
MPN: MSP430F110IPW ✓ ActiveMSP430F110IPW Overview
A microcontroller is a programmable semiconductor that integrates a CPU, memory, I/O, timers, and other peripherals on one device. The MSP430 belongs to the embedded-processing hierarchy: MCU → 16-bit RISC microcontroller → ultra-low-power embedded controller. Its reduced instruction set, 16-bit registers, and 125ns instruction-cycle time support deterministic control operations in portable measurement and low-energy sensor systems.
The MSP430F110IPW combines 1KB of Flash for program storage with 128 bytes of RAM for working data. Its Basic Clock Module supports clock selection needed by portable systems, while its integrated peripherals reduce external component count. The device operates from a low supply voltage range with a stated 3.6V value and is specified in a 20-pin TSSOP package for surface-mount assembly.
Ultra-low-power operation is central to the architecture. The MSP430 family supports five low-power modes optimized for extended battery life. The documented off-state retention current is 0.1µA, and the device can wake from standby to resume measurement or control activity. This combination of low voltage, low-power states, and rapid wake-up is more important than peak processing throughput in many portable applications.
Typical uses include battery-powered meters, compact environmental sensors, handheld instrumentation, simple control panels, and low-duty-cycle embedded nodes. The 128-byte RAM is suitable for compact working sets, while the 1KB Flash capacity is best matched to focused control logic rather than large buffers or demanding human-interface firmware. The 8MHz clock also allows the CPU to complete periodic measurement and signal-processing tasks between extended standby intervals.
Designers should budget memory before committing to application code, ensure firmware fits the 1KB Flash and 128-byte RAM limits, and plan decoupling and PCB layout around the TSSOP footprint. Verify the complete pin description, operating limits, clock setup, and low-power-mode conditions in the manufacturer datasheet before a new board is released.
This product summary connects the MSP430F110IPW's memory, clock, power-management, package, and sourcing characteristics with practical design guidance. It also distinguishes verified same-family alternatives from replacements that would require a different footprint or software review.
Drop-in alternatives for MSP430F110IPW — 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 MSP430F110IPW (same form factor and footprint) — differing in Flash Memory, Package, Product Type.
MSP430F1121IPW
✅ Drop-In📋 Reference alternative (not in catalog)
MSP430F1111AIPW
✅ Drop-In📋 Reference alternative (not in catalog)
MSP430F110IPW Maximum Ratings & Electrical Characteristics
| Product Type | 16-bit ultra-low-power RISC microcontroller |
| Maximum Clock Frequency | 8MHz |
| Flash Memory | 1KB (1K x 8) |
| RAM | 128B |
| Instruction Cycle Time | 125ns |
| CPU Architecture | 16-bit RISC |
| Register Width | 16-bit |
| Low Supply Voltage | 3.6V |
| Off-Mode RAM Retention Current | 0.1µA |
| Low-Power Modes | 5 modes |
| Clock Module | Basic Clock Module |
| Package | 20-pin TSSOP |
| Package Width | 4.40mm |
| Mounting Type | Surface mount |
| Process Technology | CMOS |
| Wake-Up from Standby | µs range |
MSP430F110IPW 4.40mm Pin Configuration Guide
Pin configuration for MSP430F110IPW (4.40mm 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 MSP430F110IPW.
Refer to the datasheet for full pin configuration.
Typical Applications
MSP430F110IPW is suitable for 6 applications: Battery-Powered Digital Multimeter, Portable Environmental Sensor Node, Battery-Powered Data Logger, Industrial Sensor Interface Module, Handheld Instrumentation Control Panel, Low-Power Audio Signal Monitor.
Battery-Powered Digital Multimeter
The MSP430F110IPW fits a compact digital multimeter because its 16-bit RISC core, 8MHz maximum clock, and 128-byte RAM support fast control of an LCD, switches, and measurement sequencing. Its low 3.6V supply capability and five low-power modes suit a battery-powered instrument that spends most of its time waiting for an operator or a sampled measurement. The 1KB Flash limit requires a focused firmware image, so avoid large display libraries and move nonessential tables into external storage if the meter needs extensive calibration data.
Recommended
Portable Environmental Sensor Node
The MSP430F110IPW is suitable for a low-duty-cycle environmental sensor because the 8MHz clock can service periodic readings while the device sleeps between measurements. Its 0.1µA off-mode RAM-retention current and wake-up capability help preserve battery energy, while five operating modes provide options for balancing response time and consumption. The 128-byte RAM must hold active sensor state, so use a compact buffering strategy and avoid blocking operations that prevent the controller from returning to standby.
Recommended
Battery-Powered Data Logger
The MSP430F110IPW can control a compact data logger that samples inputs at intervals and stores a limited record set in its 1KB Flash. Its 125ns instruction cycle and 8MHz clock provide ample execution margin for timestamp updates, sensor control, and simple record formatting, while the low-power architecture extends operating time between battery replacements. Designers should account for Flash wear, erase granularity, and the 128-byte RAM limit before defining the logging interval or record structure.
Recommended
Industrial Sensor Interface Module
The MSP430F110IPW fits a compact industrial sensor interface when the required logic fits within 1KB of Flash and 128 bytes of RAM. Its 16-bit registers simplify handling of ADC counts, status flags, and timing variables, while the Basic Clock Module supports the clock arrangement needed by a low-power embedded control loop. For long wiring runs, pair the controller with a robust physical-layer device and validate the complete interface for industrial noise, grounding, and surge requirements.
Recommended
Handheld Instrumentation Control Panel
The MSP430F110IPW can serve as the controller in a small handheld instrument because its 8MHz maximum clock supports responsive keypad scanning, display updates, and measurement-state management. The 20-pin TSSOP package permits a compact board, and the low-power modes help extend operation between charging cycles. Because only 128 bytes of RAM are available, interface drivers should use minimal buffers, and a larger MSP430 model is preferable if the product requires extensive menu graphics, simultaneous data buffers, or complex communications.
Recommended
Low-Power Audio Signal Monitor
The MSP430F110IPW can supervise a low-power audio monitoring function where the MCU handles level thresholds, mute logic, and status reporting rather than performing intensive signal processing. The 8MHz clock provides adequate control-loop headroom, while the 1KB Flash and 128-byte RAM constrain firmware to a focused supervisory role. A dedicated audio converter should perform sampling, and the MCU should remain inactive whenever only monitoring is required to preserve battery life.
Recommended
Recommended Products Summary
Engineering reference data for MSP430F110IPW — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MSP430F1121IPW | MSP430F1111AIPW |
|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 20-TSSOP | 20-TSSOP | 20-TSSOP |
| CPU Architecture | 16-bit RISC | 16-bit RISC | 16-bit RISC |
| Maximum Clock Frequency | 8MHz | 8MHz | 8MHz |
Key Differentiators
- Lower memory footprint for focused embedded control (vs MSP430F1121IPW)
- Documented ultra-low-power architecture (vs MSP430F1111AIPW)
- Deterministic 16-bit control performance (vs MSP430F2132IPW)
Design Notes
Estimate the average current from the actual duty cycle rather than relying only on active-mode current. Use the time spent measuring, processing, and waiting in each of the five supported low-power modes, then multiply each current by its corresponding duration. Include sensor, regulator, pull-up, and interface leakage because the MSP430F110IPW's 0.1µA off-mode RAM-retention current alone does not determine complete battery life.
Assign every signal directly from the Texas Instruments 20-pin TSSOP pin-description table and preserve the package drawing's pin numbering. Place the required bypass capacitor adjacent to the supply pins, route the reset path away from switching nodes, and keep clock and sensitive sensor traces short. The 20-pin TSSOP footprint is not interchangeable with a 20-pin SOIC footprint even when the component count is similar.
Budget firmware memory before selecting the part: 1KB of Flash and 128 bytes of RAM constrain library selection, stack depth, buffering, and interrupt-handler complexity. A linker map should remain inside both limits with operating margin for the complete build. Also verify startup behavior, watchdog configuration, reset pins, and clock initialization in the manufacturer documentation for the selected device revision.
Keep the Basic Clock Module and any external crystal or resonator close to the device, with a compact ground return and no unrelated switching current beneath the clock area. Route sensor inputs away from the 8MHz clock and switching-supply nodes. If the controller handles high-impedance analog sensing, use controlled grounding and shielding rather than relying on digital filtering alone to correct layout-coupled noise.
Compliance Information
The available technical listings do not state a definitive RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 qualification is not indicated for this device.
