STM8L152R8T3 16MHz 64KB 64-LQFP Ultra-Low-Power MCU | STMicroelectronics
MPN: STM8L152R8T3 ✓ ActiveSTM8L152R8T3 Overview
An ultra-low-power microcontroller is designed to maintain reliable digital control while minimizing energy consumption during standby, sleep, and active operation. The STM8L152R8T3 belongs to the STM8L family, combining an 8-bit CISC architecture, compact Flash-based program memory, LCD-oriented peripherals, and low-voltage operation in a surface-mount package. This combination makes it useful for compact battery-powered instruments, meter interfaces, sensor controllers, and embedded user-interface systems.
The device is identified as an STM8L152R8 variant with 64 KB of Flash organized as 64K x 8 bits and a maximum stated CPU frequency of 16 MHz. Its LCD capability allows a system to drive segment or matrix displays without requiring a separate display controller. The 1.65 V to 3.6 V operating range also supports designs operating from single-cell lithium energy sources regulated to low-voltage rails, although the final power architecture must include appropriate battery protection.
The STM8L152R8T3 is packaged in a 64-LQFP 10x10 mm form factor. This relatively high pin count supports a broad set of general-purpose and application-specific connections while remaining compatible with leaded-package assembly and inspection processes. The STM8L152R8 family is also available in several density and temperature configurations, so firmware validation must confirm that the selected ordering code matches the required memory, package, and operating-temperature grade.
Typical uses include compact energy meters, sensor-hub boards, handheld measurement products, industrial panel controllers, and battery-operated instruments with LCD feedback. Because the MCU is designed for low-voltage systems, careful attention to supply noise, brown-out behavior, reset conditions, and peripheral current consumption is important during hardware development.
For PCB design, place the MCU close to its supporting crystal or timing components and route sensitive inputs away from switching nodes. Use the manufacturer pin-description table when assigning every LQFP connection, and verify the exposed programming and debug functions before finalizing the footprint. Firmware should be tested across the intended supply range and temperature grade rather than relying only on nominal-room-temperature behavior.
This product page consolidates the available manufacturer and distributor information, identifies the core electrical and packaging constraints, and provides practical selection guidance for engineers evaluating the STM8L152R8T3 in low-power LCD-equipped embedded designs.
Drop-in alternatives for STM8L152R8T3 — 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 STM8L152R8T3 (same form factor and footprint) — differing in Package, Flash Memory, CPU Architecture, Product Type, Operating Temperature.
STM8L152R8T6
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM8L151R8T6
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM8L151R8T3
✅ Drop-In ⚠️ Specs UnverifiedContact for price
View Datasheet →STM8L152R6T3
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
STM8L151R6T6
✅ Drop-InContact for price
View Datasheet →STM8L152R8T3 Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit ultra-low-power microcontroller |
| Series | STM8L EnergyLite |
| CPU Architecture | 8-bit CISC |
| Maximum CPU Frequency | 16 MHz |
| Flash Memory | 64 KB (64K x 8 bits) |
| Operating Supply Voltage Without BOR | 1.65 V to 3.6 V |
| Operating Supply Voltage With BOR | 1.8 V to 3.6 V |
| LCD Support | Yes |
| Package | 64-LQFP (10 mm x 10 mm) |
| Pin Count | 64 pins |
| Mounting Type | Surface mount |
| Operating Temperature | -40 °C to 85 °C, 105 °C, or 125 °C, depending on ordering code |
| Delivery Format | Tray |
STM8L152R8T3 64-lqfp (10 mm x 10 mm) Pin Configuration Guide
Pin configuration for STM8L152R8T3 (64-lqfp (10 mm x 10 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 STM8L152R8T3.
Refer to the datasheet for full pin configuration.
Typical Applications
STM8L152R8T3 is suitable for 6 applications: Battery-Powered Energy Meter, LCD Sensor Hub, Handheld Measurement Instrument, Industrial Panel Controller, Battery-Operated Diagnostic Device, Low-Voltage Control Module.
Battery-Powered Energy Meter
The STM8L152R8T3 fits compact energy meters because its STM8L EnergyLite architecture operates from 1.65 V to 3.6 V without BOR and includes 64 KB of Flash for meter firmware. Its LCD support can drive a local numeric display, while the 16 MHz CPU provides useful processing headroom for calibration, accumulation, and communication tasks. A practical design uses a low-dropout source or direct regulated battery rail, local decoupling, and brown-out control appropriate to the intended supply range. The principal design constraint is available Flash: 64 KB must cover the application, bootloader, and update mechanism without relying on unsupported memory assumptions.
Recommended
LCD Sensor Hub
The STM8L152R8T3 is appropriate for a compact sensor hub that gathers readings and presents status on an LCD. Its 16 MHz maximum CPU frequency supports responsive sampling and display updates, while 64 KB of Flash can hold drivers, filtering, and communication routines. The 1.65 V to 3.6 V operating range without BOR allows integration into low-voltage sensor systems where brown-out detection is separately controlled. Designers should budget external decoupling and verify LCD segment or matrix-drive requirements against the exact pin configuration. The MCU is most valuable when the product needs local display intelligence without a higher-performance processor.
Recommended
Handheld Measurement Instrument
A handheld meter can use the STM8L152R8T3 to combine measurement control, local LCD feedback, and low-voltage operation in one device. The 8-bit CISC architecture is suitable for straightforward instrument control, while 64 KB of Flash provides room for calibration tables, measurement routines, and user-interface logic. Operating down to 1.65 V without BOR can simplify low-energy power architecture, provided the regulator and battery protection are designed for the load. Engineers should test firmware at the minimum and maximum intended supply voltages, especially when BOR or display timing can affect measurement accuracy and startup behavior.
Recommended
Industrial Panel Controller
The STM8L152R8T3 can serve as the controller in a compact industrial panel that requires a display, low-voltage logic, and modest embedded processing. Its 64 KB Flash capacity accommodates panel logic, state handling, and input scanning, while the LCD capability reduces the need for a separate display-driver component in suitable designs. The 64-LQFP package provides numerous external connections, but every assigned function must be checked against the manufacturer pin table. Industrial products should also confirm the temperature grade and lifecycle intent of the exact ordering code before deployment in temperature-controlled or harsher enclosure environments.
Recommended
Battery-Operated Diagnostic Device
The STM8L152R8T3 is suitable for a battery-operated diagnostic device that combines local LCD feedback with modest sensing and logging functions. Its ultra-low-power STM8L positioning helps reduce energy demand, and operation from 1.65 V to 3.6 V without BOR supports low-voltage supply designs. The 16 MHz core can manage acquisition sequencing and UI updates without adding a more complex processor. Designers should optimize firmware for sleep intervals, disable unused peripherals, and size the regulator for the peak sensor load. Firmware qualification should include brown-out transitions, display startup behavior, and recovery from a depleted battery.
Recommended
Low-Voltage Control Module
The STM8L152R8T3 can act as the central controller in a low-voltage module for sensor conditioning, local indication, and downstream communication. Its 64 KB Flash supports a larger application than the lower-density STM8L configurations, while the 16 MHz CPU speed provides a practical balance for real-time control tasks. The broad low-voltage operating range permits use above a regulated single-cell rail, provided BOR and power-loss behavior are intentionally configured. Layout should keep supply and reference connections quiet, while firmware should define safe outputs during reset and low-voltage conditions to prevent unintended actuator activity.
Recommended
Recommended Products Summary
Engineering reference data for STM8L152R8T3 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM8L152R8T6 | STM8L151R8T6 | STM8L151R8T3 | STM8L152R6T3 | STM8L151R6T6 |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) | 64-LQFP (10 mm x 10 mm) |
| CPU Architecture | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC | 8-bit CISC |
| Maximum CPU Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Flash Memory | 64 KB | 64 KB | 64 KB | 64 KB | 32 KB | 32 KB |
| Operating Supply Voltage Without BOR | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V | 1.65 V to 3.6 V |
| Operating Supply Voltage With BOR | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| LCD Support | Yes | Yes | Yes | Yes | Yes | Yes |
Key Differentiators
- Higher program-memory density than R6 alternatives (vs STM8L152R6T3)
- Same STM8L CPU speed with more Flash capacity (vs STM8L151R6T6)
- Pin-compatible family option preserves PCB format (vs STM8L152R8T6)
Design Notes
Design the supply rail for both active and sleep loads across the full STM8L152R8T3 operating range of 1.65 V to 3.6 V without BOR. Place the required supply capacitors close to the MCU pins, keep the regulator reference path quiet, and verify startup behavior at the minimum rail voltage. Brown-out reset changes the valid range to 1.8 V to 3.6 V, so the BOR configuration must be aligned with the power-budget and battery-protection design.
Use the manufacturer pin-description table for the exact STM8L152R8T3 ordering code and preserve the 64-LQFP 10x10 mm land pattern. Keep clock, reset, and programming nets away from switching-regulator nodes and high-current LEDs. Provide unobstructed routing for programming or debug access, and include exposed-pad or thermal requirements only as specified by the manufacturer package drawing. Do not infer unused pins from a different family member.
Do not treat the T3 and T6 suffixes as automatically interchangeable without checking the ordering-code temperature grade. Likewise, a 64 KB STM8L151 variant may use the same package while providing a different peripheral configuration. Before changing the BOM, compare the pin table, clock behavior, LCD resources, brown-out settings, programming interface, and operating-temperature limits, then rebuild and qualify the firmware on the candidate device.
Evaluate the LQFP assembly from its actual PCB copper area, nearby components, airflow, and ambient temperature. The 64-LQFP package provides multiple leads for electrical connection, but package qualification should rely on the manufacturer’s thermal guidance rather than an assumed generic value. For low-voltage systems, power dissipation may be modest; nevertheless, validate the final board because LCD drive outputs, regulator efficiency, and adjacent heat sources can alter the operating temperature margin.
Compliance Information
Compliance status requires confirmation from the manufacturer product documentation for the exact STM8L152R8 ordering code and temperature grade.