STM8L152M8T3 - 16MHz 64KB Low-Power MCU | ST
MPN: STM8L152M8T3 ✓ ActiveSTM8L152M8T3 Overview
An ultra-low-power microcontroller is an embedded controller designed to minimize energy consumption during active operation, standby, and low-power modes. Within the product hierarchy, the STM8L152M8T3 is a low-power MCU, an 8-bit microcontroller, and a semiconductor integrated circuit. The STM8 CPU core supports compact control firmware while integrated communication, timing, analog, and LCD-related resources reduce the need for external components.
Verified device attributes include an 8-bit architecture, operation up to 16 MHz, 64 KB of Flash memory organized as 64K by 8 bits, LCD capability, and an 80-pin gull-wing LQFP package. The device also appears with an automotive temperature-grade designation in distributor technical listings. Its 14 mm by 14 mm LQFP package provides 80 accessible leads for analog, digital, communications, clock, debug, and power functions.
The STM8L152M8T3 combines an embedded CPU with resources normally distributed across several discrete components. This integration is valuable when board area, standby consumption, and firmware complexity are important constraints. Exact RAM capacity, operating-voltage limits, individual peripheral ranges, clock-tree details, and converter performance should be confirmed against the manufacturer datasheet before a production schematic is released.
Typical applications include low-energy sensor and metering systems, compact industrial controllers, battery-operated instruments, LCD human-interface panels, low-power communication equipment, and embedded control modules. The 64 KB Flash capacity supports moderate control code, while the large LQFP package exposes substantially more pins than smaller MCU packages for analog and mixed-signal assignments.
Designers should assign every power, ground, decoupling, reset, and debug connection directly from the manufacturer pin-description table. Because this package has 80 leads, manual schematic review is particularly important; verify boot configuration, unused-pin treatment, oscillator connections, and programming access before PCB release.
This product page consolidates manufacturer and distributor information with application guidance, procurement questions, comparison criteria, and design checks that support an engineering decision. The Request a Quote form on this page provides current commercial terms, stock status, and lead-time information without embedding stale pricing into the technical content.
Drop-in alternatives for STM8L152M8T3 — 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 STM8L152M8T3 (same form factor and footprint) — differing in Package, Product Type.
STM8L152M8T6
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM8L152M8T3
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM8L162M8T3
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM8L162M8T6
✅ Drop-InContact for price
View Datasheet →STM8L152M8U6
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM8L152M8T3 Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit ultra-low-power microcontroller |
| CPU Architecture | 8-bit |
| Maximum CPU Clock | 16 MHz |
| Flash Memory | 64 KB (64K x 8 bits) |
| Package | 80-pin LQFP, 14 mm x 14 mm |
| Mounting Type | Surface mount |
| Terminal Count | 80 pins |
| Terminal Form | Gull wing |
| Package Shape | Square |
| LCD Support | Yes |
| Power Class | Ultra-low-power microcontroller |
| Temperature Grade | Automotive |
STM8L152M8T3 square Pin Configuration Guide
Pin configuration for STM8L152M8T3 (square 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 STM8L152M8T3.
Refer to the datasheet for full pin configuration.
Typical Applications
STM8L152M8T3 is suitable for 6 applications: Battery-Powered Sensor Controller, LCD Metering Instrument, Compact Industrial Control Module, Low-Power Communication Equipment, Portable Medical or Wellness Monitor, Smart Home and IoT Actuator Node.
Battery-Powered Sensor Controller
The STM8L152M8T3 fits compact sensor nodes that periodically wake to acquire measurements, process them locally, and return to a low-power state. Its 16 MHz 8-bit core and 64 KB Flash provide enough control capacity for sensor management, data filtering, timers, and communications without requiring a high-power processor. The ultra-low-power MCU family position supports low-energy design, while the 80-pin LQFP exposes ample I/O for digital sensors, status indicators, and local storage. Validate standby current, wake sources, and analog performance against the required duty cycle before finalizing battery-life estimates.
Recommended
LCD Metering Instrument
The STM8L152M8T3 is appropriate for metering instruments that combine an LCD, low-energy operation, and embedded measurement control. Its LCD capability reduces the need for a separate display controller, while the 64 KB Flash supports firmware for calibration, conversion, event logging, and communications. The 80-pin LQFP provides ample routing capacity for display segments, buttons, reference inputs, and serial interfaces. Select the display glass and segment count by matching the MCU’s supported LCD outputs with the meter’s mechanical and electrical requirements, then confirm contrast, bias, and drive limits in the manufacturer documentation.
Recommended
Compact Industrial Control Module
The STM8L152M8T3 can serve as the central controller in a compact industrial module that handles discrete inputs, relay or indicator outputs, local timing, and service communications. Its 8-bit architecture and 64 KB Flash are suitable for deterministic supervisory logic, while the large 80-lead package simplifies access to multiple I/O functions compared with smaller MCU packages. The ultra-low-power family designation is useful in systems that spend substantial time idle. Validate industrial temperature requirements, isolation boundaries, transient protection, grounding, and any field-bus timing before using the controller in a deployed machine.
Recommended
Low-Power Communication Equipment
The STM8L152M8T3 works well as the supervisory controller in low-power communication equipment where a small processor manages configuration, packet handling, status indication, and local diagnostics. At up to 16 MHz with 64 KB Flash, it can support moderate protocol stacks and control firmware while avoiding the memory and power burden of a higher-end application processor. The 80-pin LQFP also provides room for UART, SPI, or I2C-oriented circuitry when those interfaces are present in the selected device configuration. Confirm the exact peripheral mix and clock tree before assigning the communication circuitry.
Recommended
Portable Medical or Wellness Monitor
The STM8L152M8T3 can support portable monitoring equipment that coordinates sensors, a local display, buttons, and low-rate data logging. Its 8-bit control core and 64 KB Flash are appropriate for measurement sequencing, threshold logic, and status handling, while the LCD capability assists in compact user interfaces. The low-power architecture is valuable for a device intended to operate from a small battery or energy-harvesting source. Medical use requires a separate quality and regulatory assessment; engineers should also verify analog accuracy, noise, timing, and operating-temperature limits for the intended measurement class.
Recommended
Smart Home and IoT Actuator Node
The STM8L152M8T3 is suitable for smart-home actuator and gateway nodes that must remain responsive while using minimal standby power. Its local control functions can supervise relays, indicators, buttons, and sensors, while 64 KB Flash accommodates communication, diagnostics, and update-aware control logic. The LCD support may also simplify local status displays on premium nodes. For an IoT deployment, evaluate wake latency, radio coexistence, antenna layout, firmware update strategy, and cybersecurity requirements alongside the MCU’s low-power characteristics. Use a hardware secure element when the product threat model requires dedicated key protection.
Recommended
Recommended Products Summary
Engineering reference data for STM8L152M8T3 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM8L152M8T6 | STM8L152M8U6 | STM8L162M8T3 | STM8L162M8T6 |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 80-LQFP (14x14) | 80-LQFP (14x14) | 80-LQFP (14x14) | 80-LQFP (14x14) | 80-LQFP (14x14) |
| CPU Architecture | 8-bit | 8-bit | 8-bit | 8-bit | 8-bit |
| Maximum CPU Clock | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 64 KB |
| Ordering Suffix | T3 | T6 | U6 | T3 | T6 |
Key Differentiators
- Same 80-LQFP footprint across the qualified candidates (vs STM8L162M8T6)
- Direct ordering-suffix alternative within the STM8L152M8 family (vs STM8L152M8T6)
- LCD capability is confirmed for the target and closest family alternative (vs STM8L152M8T6)
Design Notes
Treat the 80-pin LQFP as a connection-checkpoint design. Build the schematic directly from the manufacturer pin-description table, mark every power and ground lead, and verify exposed-pad or thermal requirements against the package drawing. Before routing, create a PCB netlist review that flags duplicate functions, reserved pins, oscillator assignments, and programming signals. This reduces the risk of a package-level error that is difficult to diagnose after fabrication.
Implement the manufacturer’s recommended input, output, and internal supply-decoupling network directly at the associated pins. Keep each capacitor connection short and use the specified voltage and dielectric characteristics. Validate startup, reset, brownout behavior, and load-transient response across the complete input-voltage range rather than relying only on nominal operation. Exact capacitor values and voltage limits must come from the application guidance and device datasheet.
Separate sensitive analog or LCD-related routes from switching nodes and high-current outputs. Match trace geometry for oscillator and communication signals according to the relevant hardware-design guidance, and provide a clear ground-return path beneath sensitive circuitry. Where analog inputs are used, inspect source impedance, acquisition time, and leakage requirements; the 16 MHz CPU does not eliminate the need for correct analog front-end design.
A package-compatible substitute can still fail because of temperature grade, peripheral differences, boot behavior, or firmware register changes. When evaluating STM8L152M8T6, STM8L152M8U6, STM8L162M8T3, or STM8L162M8T6, compare the complete manufacturer pin tables and device order codes. Preserve the target footprint only after checking power, reset, clock, debug, display, communication, and peripheral assignments signal by signal.
Compliance Information
The automotive temperature-grade designation is confirmed by technical listings, but AEC-Q100 qualification and material-compliance declarations were not identified for the exact ordering code. Confirm these statuses in the manufacturer product documentation.
