Package LQFP-48 · Lifecycle: Active · volume production
STM32F103C8T6 is a mainstream Arm Cortex-M3 microcontroller from STMicroelectronics with 64 KB Flash in a 48-pin LQFP package — one of the most widely designed-in 32-bit MCUs for embedded control, motor control and industrial I/O. Its advantage for procurement is ecosystem depth: toolchains, reference designs and engineer familiarity are all mature, which shortens development and second-source risk. Selection advice: the C8 density code (64 KB) is the critical match point — firmware and memory layout are qualified against a specific density, so ordering the wrong density variant risks incompatibility; the full ordering code must match your BOM character-for-character, not just the STM32F103 base name. T6 denotes the LQFP-48 package. This is also one of the most counterfeited MCU part numbers in the open market: always require lot and date-code traceability, and confirm the exact ordering code, package and documentation requirements in your RFQ.
STMicroelectronics DS5319 Rev 20 · specifications and ordering scheme · Reviewed 2026-09-26
Quantity, source, date code, lead time and final price are reconfirmed before a commercial quote is issued.
Ordering-code highlights reviewed against official manufacturer documentation.
STM32F103C8 is available in the following manufacturer order codes. They share the same 32-bit microcontroller design; the table highlights package, packing and ordering differences. Quote the exact code your BOM needs.
| Order code | Package | Packing | Key difference |
|---|---|---|---|
| STM32F103C8T6 | LQFP-48 | — | — |
| STM32F103C8T6TR | LQFP 48 7x7x1.4 mm | — | Compared with STM32F103C8T6, package and listed temperature grade match, but the order-code suffix differs. Verify the factory packing and PCB footprint before treating order codes as interchangeable. |
| STM32F103C8T7 | LQFP 48 7x7x1.4 mm | — | Compared with STM32F103C8T6, temperature grade changes from -40.0 to 85.0 °C to -40.0 to 105.0 °C. Verify the factory packing and PCB footprint before treating order codes as interchangeable. |
| STM32F103C8T7TR | LQFP 48 7x7x1.4 mm | — | Compared with STM32F103C8T6, temperature grade changes from -40.0 to 85.0 °C to -40.0 to 105.0 °C. Verify the factory packing and PCB footprint before treating order codes as interchangeable. |
Exact MPN, manufacturer and suffix
Supplier type, quantity and freshness
Lot, labels, photos and documents
Price, lead time, payment and shipping
Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.
These are order-code variants of the same STMicroelectronics series. They share the core design; the ordering code selects the exact configuration — STM32F103C8T6TR: Compared with STM32F103C8T6, package and listed temperature grade match, but the order-code suffix differs. Verify the factory packing and PCB footprint before treating order codes as interchangeable.; STM32F103C8T7: Compared with STM32F103C8T6, temperature grade changes from -40.0 to 85.0 °C to -40.0 to 105.0 °C. Verify the factory packing and PCB footprint before treating order codes as interchangeable.; STM32F103C8T7TR: Compared with STM32F103C8T6, temperature grade changes from -40.0 to 85.0 °C to -40.0 to 105.0 °C. Verify the factory packing and PCB footprint before treating order codes as interchangeable.. STM32F103C8T6 itself is the LQFP-48 configuration. A code that differs by even one character may be a different device, so always quote the complete code exactly as it appears on your BOM.
From the verified technical profile: CPU core: Arm Cortex-M3; Maximum frequency: 72 MHz; Flash memory: 64 KB. These are the catalog-recorded values for STM32F103C8T6 — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.