STM32H503RBT6
STMicroelectronicsSTM32H503RBT6 is the entry point of the ST STM32H5 line — a 250 MHz Arm Cortex-M33 microcontroller with 128 KB flash and 32 KB RAM in LQFP-64, for cost-sensitive designs that still need the H5 security feature set and modern peripherals. It sits below the STM32H563/H573 listings on this site: choose it when 128 KB covers the firmware and the larger H5 memory options are over-specified. Selection advice: the RBT6 code fixes the LQFP-64 package and the 128 KB/32 KB memory size — STM32 order codes encode package and memory in the part number, so confirm both against the ST ordering information before substituting a sibling code; the same subfamily also comes in 25-, 32- and 48-pin packages under different codes. ST lists this order code Active.
- MPN
- STM32H503RBT6
- Manufacturer
- STMicroelectronics
- Family
- 32-bit microcontroller
- Package
- LQFP-64
- Manufacturer channel coverage
- Checked by RFQ
- Data last checked
- Commercial check required
- Required order checks
- Suffix, package, date code, lot, source and traceability
Four checks before a commercial offer.
Identity
Exact MPN, manufacturer and suffix
Supply
Supplier type, quantity and freshness
Evidence
Lot, labels, photos and documents
Terms
Price, lead time, payment and shipping
Explore more Integrated Circuits records
Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.