STMicroelectronics STM8S007C8T6

Overview

STM8S007C8T6 from STMicroelectronics is an 8-bit value-line microcontroller featuring a Harvard-architecture STM8 core, 64 Kbytes Flash, 128 bytes true data EEPROM, 6 Kbytes RAM, 10-bit ADC with up to 16 channels, two UARTs (one LIN-capable), SPI (10 Mbit/s), I²C (400 Kbit/s), and three 16-bit timers plus one 8-bit timer - deployed in motor control, industrial sensor nodes, and appliance UI subsystems.

For engineers reviewing the STM8S007C8T6 datasheet, STM8S007C8T6 pinout, STM8S007C8T6 application, or STM8S007C8T6 equivalent, key selection criteria include its 24 MHz max CPU frequency with zero wait states ≤16 MHz, 38 I/Os (16 high-sink), SWIM single-wire debug interface, and support for active-halt/low-power modes down to 128 kHz RC clock.

Technical Context

The STM8S007C8T6 implements an advanced 3-stage pipelined STM8 core with extended instruction set and nested interrupt controller supporting 32 interrupts and up to 37 external vectors. Its clock system integrates user-trimmable 16 MHz internal RC, low-power 128 kHz RC, crystal oscillator, and external clock input with clock security monitoring.

Peripheral integration includes TIM1 (16-bit advanced timer with dead-time insertion and 3 complementary outputs), TIM2/TIM3 (16-bit general-purpose with CAPCOM), TIM4 (8-bit basic timer), auto-wakeup timer, window/independent watchdogs, and dual UARTs - one supporting LIN 2.1 master/slave with automatic resynchronization.

Key Specifications

Pinout & Package

LQFP48 package (7 × 7 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 8-bit microcontroller applications.

Compared with STM8S005C6T6, the STM8S007C8T6 adds LIN-capable UART3 and doubles Flash capacity - critical for field-upgradable firmware in automotive accessories. Versus STM8L052C6T6, it trades ultra-low-power operation for 5 V compatibility and higher drive strength, making it suitable for industrial mains-powered equipment.

Availability

STM8S007C8T6 is available at Aetrix Electronics and suitable for motor control subsystems, industrial sensor nodes, home appliance UI controllers, and automotive body electronics requiring stable component supply across long production lifecycles.

Supply support for STM8S007C8T6 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, power management ICs, sensors, and analog products for industrial, automotive, and consumer markets.

The STM8S value line targets cost-sensitive, high-volume embedded applications demanding robustness, integrated peripherals, and long-term supply stability - especially where 8-bit performance, low development overhead, and SWIM debug simplicity are prioritized.

FAQ

Does STM8S007C8T6 support in-application programming (IAP) of Flash memory?

Yes. The device supports IAP via its built-in bootloader accessed through UART or SWIM interface. Flash sectors can be erased and reprogrammed under software control without external programmer, enabling firmware updates in the field. The PM0051 reference manual details memory protection, erase timing, and voltage requirements during write operations.

What is the maximum allowed clock jitter for the external HSE crystal oscillator?

The HSE oscillator supports crystals with load capacitance of 12.5 pF ±1 pF and requires RMS jitter ≤100 ps over 12 kHz–20 MHz bandwidth per DS8633 Rev 6 Section 9.3.3. Exceeding this degrades ADC accuracy and UART bit timing margin - ST recommends using crystals with ±20 ppm stability and low ESR (<80 Ω) for reliable 24 MHz operation.

Can the 128-byte data EEPROM be used as emulated EEPROM for larger data storage?

No. The 128-byte data EEPROM is physically separate from Flash and not designed for emulation. It provides guaranteed 100 kcycle endurance and atomic byte-write capability. For larger nonvolatile storage, use Flash pages with wear-leveling firmware - but note Flash endurance is only 10 kcycles, and page erasure is required before rewriting.

Is the SWIM interface compatible with ST-LINK/V2 or third-party debuggers?

Yes. ST-LINK/V2 and ST-LINK/V2-1 support SWIM protocol natively via dedicated SWIM pin (pin 11 on LQFP48). Third-party debuggers must implement the SWIM communication protocol defined in UM0470 - generic JTAG adapters without SWIM firmware will not function. No level-shifting is needed for 3.3 V or 5 V VDD operation.