PACKAGE REFERENCELQFP-64Confirm case, pinout and ordering suffix before purchase.

MANUFACTURER PART RECORD

STM32F091RCT6

STM32F091RCT6 is an STMicroelectronics Cortex-M0 microcontroller with a maximum core frequency of 48 MHz, 256 KB flash and 32 KB SRAM with hardware parity. The RCT6 code identifies 64-pin LQFP, −40°C to +85°C and tray packing; TR is the tape-and-reel option. Digital supply is 2.0–3.6 V, while ADC analog supply requires 2.4–3.6 V and must not be below VDD. Confirm firmware size, pin functions and errata before approving a different density or package. Reviewed against ST DocID026284 Rev 4 and the exact-code product-table row, rather than distributor listings alone.

Integrated Circuits32-bit microcontrollerLQFP-64

Add to RFQ

MPN: STM32F091RCT6
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

PROCUREMENT DATA

Identity and sourcing requirements.

MANUFACTURER DATA REVIEW

Key technical specifications

Ordering-code highlights reviewed against official manufacturer documentation.

Core / maximum frequency: Arm Cortex-M0 · up to 48 MHz
Flash memory: 256 KB · density code C
SRAM: 32 KB with hardware parity
Supply voltage (VDD): 2.0 V to 3.6 V · digital and I/O supply; ADC analog supply requires 2.4 V to 3.6 V and must be ≥VDD
Order-code package: R = 64 pins · T = LQFP; 10 × 10 mm body
Manufacturer packing: Tray · no TR suffix; TR denotes tape and reel
Ambient temperature grade: −40°C to +85°C · suffix 6

Source: ST DocID026284 Rev 4 (January 2017) · pp. 1, 11, 54, 124 (Table 81); STM32F091RCT6 product-table row · Reviewed 2026-10-18

Sourcing note

Confirm ordering suffix, package, temperature grade, programming and date-code requirements.

Before you request a quote

Confirm density and board compatibility
Keep the RC density and package on the approved BOM. An RB code has less flash; do not approve a substitution from family resemblance alone. Check firmware size, pin functions and the current errata.
Separate supply and packing conditions
The digital supply minimum is not the ADC analog-supply minimum. Match the tray or TR requirement and inspect offered lot documentation before quotation; neither the product page nor an active family establishes available stock.

Official documentation

Confirm the latest manufacturer revision and ordering suffix before design-in or purchase.

Open official datasheet Manufacturer product page

QUOTE WORKFLOW

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

RELATED REFERENCES

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.

COMMON QUESTIONS

STM32F091RCT6 FAQ

What are the key specifications of STM32F091RCT6?

From the verified technical profile: Core / maximum frequency: Arm Cortex-M0 · up to 48 MHz; Flash memory: 256 KB · density code C; SRAM: 32 KB with hardware parity. These are the catalog-recorded values for STM32F091RCT6 — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.