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STMicroelectronics STM8S207CBT3 — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM8S207CBT3 8-bit MCU, 128KB Flash, 24MHz, -40 to 125°C

MPNSTM8S207CBT3
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STMicroelectronics STM8S series 8-bit MCU, STM8S207CBT3, 24MHz, 128KB Flash, 6K x 8 RAM, 2K x 8 EEPROM, 38 I/O, I²C/SPI/UART/LIN, -40 to 125°C, 48-LQFP.

$2.6747Ref. price · indicative, final on quote
STMicroelectronics STM8S207CBT3 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM8S207CBT3 specifications
ParameterValue
SeriesSTM8S
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2.95V ~ 5.5V
Operating temperature-40°C~125°C(TA)
Speed24MHz
PackageTray
RAM size6K x 8
Core size8-Bit
EEPROM size2K x 8
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
ConnectivityI²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)38
Core processorSTM8
Case48-LQFP
Data convertersA/D 10x10b
Program memory size128KB (128K x 8)

Product details

What this 8-bit MCU delivers

The STM8S207CBT3 is an 8-bit microcontroller with a 24 MHz STM8 core, 128 KB Flash, 6 KB RAM, and 2 KB EEPROM.

24 MHz core — timing budget for control loops

The 24 MHz clock rate provides instruction cycles for the STM8 pipeline, supporting a 10 kHz PWM update and serial communication.

Lifecycle status: end-of-life — plan accordingly

The STM8S207CBT3 is flagged as end-of-life (EOL hot).

Package and mounting — 48-LQFP

The 48-LQFP package is a surface-mount footprint. The 38 I/O lines are accessible on the outer leads.

Frequently asked questions

What is the closest pin-compatible alternative to STM8S207CBT3?

The STM8S207CBT6 is a pin-compatible drop-in replacement with the same 48-LQFP package, same 24 MHz core, and same -40°C to 125°C temperature range. The difference is in Flash density — the CBT6 offers a larger program memory option.

What is the supply voltage range for STM8S207CBT3?

The supply voltage range is 2.95 V to 5.5 V, allowing direct operation from a 3.3 V or 5 V rail.

What is STM8S207CBT3's listed speed?

The core runs at 24 MHz.