MSP430P315IDL - 16-Bit, 8MHz Mixed-Signal MCU | Texas Instruments
MPN: MSP430P315IDL ✓ ActiveMSP430P315IDL Overview
A mixed-signal microcontroller is an embedded controller that integrates digital processing with analog-capable peripherals for sensing, timing, communication, and control. Within the semiconductor hierarchy, the MSP430P315IDL belongs to the MSP430x3xx family of 16-bit RISC microcontrollers and combines a power-management-aware design with LCD-driving resources. This family architecture targets applications that need deterministic control, compact display output, and low standby consumption without the complexity of a larger system.
Verified product information identifies a maximum clock frequency of 8 MHz, 16 KB of OTP memory, 512 B of RAM, and support for up to 92 LCD segments. The device operates from low-voltage supply rails, with 3.3 V and 5 V operation identified in the distributor records and a maximum supply voltage of 5.5 V. Its 16-bit RISC architecture supports efficient control workloads while the integrated display capability reduces the need for an external LCD controller in segmented-meter designs.
Power-management characteristics include standby current of 1.3 µA and off-mode current with RAM retention of 0.1 µA, as stated in the retrieved technical description. Wake-up from standby is specified at up to 6 µs. These figures make the MSP430P315IDL relevant to battery-operated meters, portable instrumentation, and industrial panel devices where idle-current demand is important. The available operating-current value at 1 MHz and 3 V could not be confirmed from the supplied excerpts.
Typical uses include multifunction utility meters, industrial measurement panels, temperature controllers, portable test equipment, and compact display instruments. The 92-segment LCD capability is particularly useful when the user interface consists of numeric digits, status indicators, or a matrix of fixed segments. The device can reduce external display-driver circuitry, provided the selected LCD panel and segment mapping are compatible with its multiplexing and pin assignments.
The primary design considerations are power-budget verification, LCD bias and segment mapping, oscillator configuration, firmware timing, and decoupling of the supply pins. Designers should use the manufacturer datasheet for the complete pinout, recommended operating conditions, LCD timing, and electrical limits because the verified excerpts do not provide a complete public pin-assignment table. Industrial-grade marking is reported by the distributor data, but detailed temperature limits are not included in the supplied records.
This page consolidates verified distributor specifications, lifecycle-relevant sourcing information, package constraints, and a drop-in replacement assessment for the MSP430P315IDL. It also distinguishes confirmed engineering facts from fields that still require datasheet or quotation confirmation, helping engineers avoid treating uncertain parameters as production-ready data.
Drop-in alternatives for MSP430P315IDL — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
MSP430P315IDLR
✅ Drop-In📋 Reference alternative (not in catalog)
MSP430P315SIDL
✅ Drop-In📋 Reference alternative (not in catalog)
MSP430P315IDL Maximum Ratings & Electrical Characteristics
| Architecture | 16-bit RISC |
| Maximum Clock Frequency | 8 MHz |
| Program Memory | 16 KB OTP (16K x 8) |
| RAM | 512 B |
| LCD Segment Support | 92 segments |
| Package | 56-pin SSOP |
| Package Body Width | 7.50 mm |
| Maximum Supply Voltage | 5.5 V |
| Supported Supply Voltage | 3.3 V or 5 V |
| Standby Current | 1.3 µA |
| Off Mode Current with RAM Retention | 0.1 µA |
| Wake-Up Time from Standby | 6 µs maximum |
| Power-Saving Modes | 5 modes |
| Temperature Grade | Industrial |
| Mounting Type | Surface mount |
| Terminal Count | 56 terminals |
MSP430P315IDL 7.50 mm Pin Configuration Guide
Pin configuration for MSP430P315IDL (7.50 mm 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 MSP430P315IDL.
Refer to the datasheet for full pin configuration.
Typical Applications
MSP430P315IDL is suitable for 6 applications: Utility Metering Displays, Industrial Instrument Panels, Battery-Powered Portable Monitors, Temperature and Process Control, Portable Test and Measurement, Energy and Cost Display Products.
Utility Metering Displays
The MSP430P315IDL fits utility metering products that require multiple numeric digits and fixed status indicators without a separate LCD controller. Its verified 92-segment LCD capability provides enough display resources for compact consumption, rate, status, and diagnostic screens, while the 16-bit RISC core handles measurement control and communications. The 16 KB OTP and 512 B of RAM suit focused firmware with limited data buffering. The 3.3 V or 5 V supply options align with meter platforms, although the designer must confirm LCD bias voltage and segment multiplexing from the manufacturer datasheet.
Recommended
Industrial Instrument Panels
The MSP430P315IDL is suitable for compact industrial instrument panels where a local segmented LCD provides operating status, set points, and alarm information. Its 8 MHz 16-bit RISC core provides deterministic control for sensor acquisition, button handling, and supervisory logic, while the integrated 92-segment LCD driver reduces external component count. The industrial temperature-grade marking supports industrial-oriented designs, but exact temperature limits and any required qualification evidence remain to be confirmed. Firmware should include display refresh and fault-indication handling while keeping the MCU in a low-power state between measurements.
Recommended
Battery-Powered Portable Monitors
The MSP430P315IDL can serve as the controller in a battery-powered portable monitor that combines a fixed-segment LCD with occasional sensor readings. Verified standby current of 1.3 µA, off-mode current with RAM retention of 0.1 µA, and wake-up from standby in 6 µs maximum provide a useful foundation for duty-cycled operation. The 512 B of RAM is sufficient for small working sets, while 16 KB of OTP supports a compact application program. Before finalizing the power budget, confirm the missing operating-current specification at 1 MHz and 3 V and include display-driver consumption in the system calculation.
Recommended
Temperature and Process Control
The MSP430P315IDL is appropriate for small temperature-control or process-control panels that need a local LCD and a dedicated real-time controller. The 8 MHz 16-bit RISC core can execute control updates, sensor conversion sequencing, and operator-interface logic, while the 92-segment LCD driver can present set point, measured value, and alarm status. Its 512 B of RAM limits buffered data volume, so designs requiring extensive history logging should add external memory or a higher-capacity MCU. Validate sensor timing, LCD update behavior, and low-power wake latency during firmware bring-up.
Recommended
Portable Test and Measurement
The MSP430P315IDL supports portable test instruments in which a fixed-segment display shows measurements, mode indicators, thresholds, and pass/fail results. The 16-bit architecture and 8 MHz clock provide enough processing capability for measurement sequencing and calibration logic, and 16 KB of OTP accommodates a focused application program. The 56-pin SSOP offers a manageable package for compact handheld products with multiple LCD segments. Engineers should budget memory for calibration constants, verify the electrical limits of selected external sensors, and avoid placing timing-critical display work in interrupt routines that could delay measurement acquisition.
Recommended
Energy and Cost Display Products
The MSP430P315IDL is well matched to compact energy and cost displays because it combines a low-power controller with a high segment count. A 92-segment LCD can show several digits, tariff indicators, operating states, and warning symbols in a single fixed-segment interface. The 512 B of RAM supports temporary calculation and display buffers, while the 16 KB OTP suits embedded firmware rather than large data logging. A key engineering trade-off is the limited memory footprint: applications needing historical consumption records should store them externally. LCD contrast, segment mapping, and the exact VDD operating range should be verified before layout release.
Recommended
Recommended Products Summary
Engineering reference data for MSP430P315IDL — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MSP430P315IDLR | MSP430P315SIDL |
|---|---|---|---|
| Package | 56-SSOP | 56-SSOP | 56-SSOP |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Architecture | 16-bit RISC | 16-bit MSP430 family | MSP430 family |
Key Differentiators
- Integrated display-controller capacity (vs MSP430P315IDLR)
- Integrated OTP memory and RAM (vs MSP430P315SIDL)
- Confirmed operating frequency (vs MSP430P315SIDL)
Design Notes
Build the power budget from the verified 1.3 µA standby current, 0.1 µA off-mode current with RAM retention, and 6 µs maximum standby wake-up time. The operating current at 1 MHz and 3 V was not available in the supplied records, so obtain it from the manufacturer datasheet before calculating battery life. Include LCD backlighting, pull networks, sensors, and external interface leakage in the system estimate rather than treating the MCU figure as total product consumption.
Confirm every signal assignment, LCD segment connection, and supply connection against the complete 56-pin manufacturer pinout before PCB release. The verified excerpts identify the 56-SSOP package but do not provide the numbered pin table, so no land pattern or segment mapping should be inferred from this listing. Place the decoupling capacitor adjacent to the device supply pins, keep the LCD routing compact, and review unused pins using the datasheet's stated configuration rather than the summary data on this page.
Do not assume that every MSP430P315 ordering suffix is electrically and thermally interchangeable. The available evidence supports MSP430P315IDLR as a closely related 56-pin, 8 MHz option and MSP430P315SIDL as a related family member, but the exact suffix meanings, temperature grades, and qualification status are not fully present in the supplied excerpts. Check the ordering table, absolute maximum ratings, LCD specifications, and package drawing before approving a substitution.
The 16 KB OTP memory is suitable for focused firmware, but one-time programmability makes firmware validation especially important. Budget code space for display updates, timing, fault handling, calibration, and field-safe updates before committing to the part. Since RAM is limited to 512 B, avoid large local buffers and use compact data structures; otherwise, consider a higher-memory MSP430 model rather than adding complexity to a design that no longer fits comfortably.
Compliance Information
The supplied verified records do not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 is not applicable to the generic industrial-grade description, but no automotive qualification is claimed.
