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STMicroelectronics STM8S208R8T6 — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8S208R8T6 8-bit MCU, 24MHz, 64KB Flash, 64-LQFP

MPNSTM8S208R8T6
Active

STMicroelectronics STM8S series STM8S208R8T6, 8-bit STM8 core MCU, 24MHz, 64KB (64K x 8) Flash, 6K x 8 RAM, 2K x 8 EEPROM, 64-LQFP (10x10 mm), -40 to 85°C, 2.95V to 5.5V supply.

$2.8684Ref. price · indicative, final on quote
STMicroelectronics STM8S208R8T6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8S208R8T6 specifications
ParameterValue
SeriesSTM8S
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.95V ~ 5.5V
Operating temperature-40°C~85°C(TA)
Speed24MHz
PackageTray
RAM size6K x 8
Core size8-Bit
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)52
Core processorSTM8
Case64-LQFP
Data convertersA/D 16x10b
Program memory size64KB (64K x 8)

Product details

It packs 64 KB of program Flash, 6 KB of RAM, and 2 KB of EEPROM — enough for a moderate control application without external memory. The 64-LQFP (10x10 mm) package gives you 52 usable I/O lines, which is a dense pin count for this footprint, so the PCB layout needs to account for routing those signals out from under the package.

Built-in CAN controller — a key differentiator

For a design that needs a CAN node without an external transceiver chip, this saves board space and BOM cost. The CAN controller is the main reason a buyer would pick the STM8S208 over the lower-pin-count or CAN-less STM8S variants.

The supply voltage spans 2.95 V to 5.5 V, so it can run from a 3.3 V regulated rail or directly off a 5 V automotive battery line with a simple pre-regulator.

STMicroelectronics lists the STM8S208R8T6 as an active product.

Peripherals and on-chip resources

The STM8S208R8T6 includes a 16-channel 10-bit ADC, brown-out detect/reset, power-on reset, PWM timers, and a watchdog timer.

Frequently asked questions

Is the STM8S208R8T6 obsolete or end-of-life?

No. STMicroelectronics lists the STM8S208R8T6 as an active product with no end-of-life notice. It is safe to design into new production.

Does the STM8S208R8T6 have a built-in CAN controller?

Yes. The connectivity set includes a CANbus controller (CAN 2.0B), along with I²C, SPI, UART/USART, LINbus, and IrDA interfaces.

What is the difference between STM8S208R8T6 and STM8S207R8T6?

Both are 8-bit STM8S MCUs with the same core, Flash, RAM, and EEPROM sizes. The STM8S208R8T6 includes a CAN controller; the STM8S207R8T6 does not. The STM8S208 also has a 16-channel 10-bit ADC versus the 10-channel version on the 207. Packages and pinouts differ — verify the specific variant for your layout.

How to program the STM8S208R8T6?

Programming uses STMicroelectronics' SWIM (Single Wire Interface Module) debug interface. You need a programmer like the ST-LINK/V2 or a third-party SWIM-compatible tool. The STM8S family is supported by ST's STVD and Cosmic toolchains, as well as IAR Embedded Workbench for STM8.

What is the maximum operating temperature of the STM8S208R8T6?

This is the industrial temperature grade, suitable for most factory and outdoor equipment but not extended for under-hood automotive (which would require -40°C to 125°C).