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STMicroelectronics STM8L052R8T6TR — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8L052R8T6TR 8-bit MCU, 64KB Flash, 16 MHz, 64-LQFP

MPNSTM8L052R8T6TR
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STMicroelectronics STM8L EnergyLite STM8L052R8T6TR, 8-bit MCU, 64KB Flash, 4K x 8 RAM, 256 x 8 EEPROM, 16 MHz, 54 I/O, 28-ch 12-bit ADC, LCD driver, 1.8V-3.6V, -40°C to 85°C, 64-LQFP.

$2.7300Ref. price · indicative, final on quote
STMicroelectronics STM8L052R8T6TR datasheet (PDF)
Packaging64-LQFP
RoHSROHS3 Compliant
SeriesSTM8L EnergyLite
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM8L052R8T6TR specifications
ParameterValue
SeriesSTM8L EnergyLite
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))1.8V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed16MHz
PackageTape & Reel (TR) Cut Tape (CT)
RAM size4K x 8
Core size8-Bit
EEPROM size256 x 8
PeripheralsBrown-out Detect/Reset, DMA, IR, LCD, POR, PWM, WDT
ConnectivityI²C, IrDA, SPI, UART/USART
Number of i (O)54
Core processorSTM8
Case64-LQFP
Data convertersA/D 28x12b
Program memory size64KB (64K x 8)

Product details

STM8L052R8T6TR — 8-bit EnergyLite MCU with integrated LCD driver

Memory and peripheral fit for metering and HMI

The 256-byte EEPROM, rated for 100k erase/write cycles per the STM8L family, stores calibration constants and configuration parameters without an external serial EEPROM. The 28-channel 12-bit ADC covers multi-sensor inputs — temperature, pressure, current sense — with 1 LSB INL typical. The LCD driver supports up to 4x28 segments, enough for a 7-segment numeric display with annunciators.

Package and I/O count

The 54 I/O lines map to the LCD segments, ADC inputs, and serial interfaces without multiplexing conflicts in most designs. The Tape & Reel variant (TR suffix) is the standard procurement unit for pick-and-place assembly.

The base product number STM8 covers the EnergyLite family, so firmware and PCB layout carry across density variants (e.g., 32 KB or 128 KB Flash siblings) without a board spin.

Frequently asked questions

Does STM8L052R8T6TR include an LCD controller?

Yes, the peripheral set includes an LCD driver capable of driving up to 4x28 segments, as listed in the peripherals field. This eliminates an external LCD controller chip in metering and HMI applications.

What is the maximum frequency of STM8L052R8T6TR?

The core runs at up to 16 MHz. At this speed the Flash requires zero wait states, so instruction execution is single-cycle for most opcodes.

What are the alternatives to STM8L052R8T6TR?

It is not pin-compatible (UFQFPN-48 vs 64-LQFP) and targets applications needing higher throughput or USB connectivity. For a drop-in replacement within the STM8L family, look at the 32 KB or 128 KB Flash density variants sharing the same 64-LQFP footprint.