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STMicroelectronics STM32F091CCT6TR — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F091CCT6TR 32-bit MCU, 48 MHz, 256 KB Flash, 48-LQFP

MPNSTM32F091CCT6TR
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STMicroelectronics STM32F091CCT6TR, ARM Cortex-M0 32-bit MCU, 48 MHz, 256 KB Flash, 32 KB RAM, 48-LQFP, -40 to 85 °C.

$6.3600Ref. price · indicative, final on quote
STMicroelectronics STM32F091CCT6TR datasheet (PDF)
Packaging48-LQFP
RoHSROHS3 Compliant
SeriesSTM32F0
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32F091CCT6TR specifications
ParameterValue
SeriesSTM32F0
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed48MHz
PackageTape & Reel (TR) Cut Tape (CT)
RAM size32K x 8
Core size32-Bit Single-Core
PeripheralsDMA, I²S, POR, PWM, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, SPI, UART/USART
Number of i (O)38
Core processorARM® Cortex®-M0
Case48-LQFP
Data convertersA/D 13x12b; D/A 2x12b
Program memory size256KB (256K x 8)

Product details

The STM32F091CCT6TR: ROHS3 compliant per the listing, so it passes the EU material restriction check without an exemption.

The ARM Cortex-M0 core runs at 48 MHz, which is the ceiling for this part. The 32-bit single-core architecture handles 8- and 16-bit data efficiently, so migrating from an older 8-bit design is straightforward. The 32 KB SRAM leaves room for a couple of moderate-size buffers — enough for a 128-byte CAN message queue or a 1 KB ADC sample buffer — without forcing external RAM.

Integrated analog and connectivity

Thirteen 12-bit ADC channels and two 12-bit DAC channels are on-chip, reducing the need for external analog front-end components in sensor and control-loop designs.

Frequently asked questions

What is the flash memory size of STM32F091CCT6TR?

The program memory is 256 KB of Flash, organized as 256K x 8 bits.

Is STM32F091CCT6TR RoHS compliant?

Yes, it is listed as ROHS3 Compliant.

What is the equivalent of STM32F091CCT6TR?

The STM32L151CBU6A is a functional peer from the STM32L1 series, but it runs a Cortex-M3 core at 32 MHz with 1.8 V supply and 37 I/O — not a pin-compatible drop-in. For a direct replacement, stay within the STM32F091 family; the base number STM32F091 covers multiple Flash/RAM and package variants.

Can STM32F091CCT6TR be used as a replacement for STM32F091CCT6?

The STM32F091CCT6TR is the Tape & Reel (TR) packaging variant of the base STM32F091CCT6. Electrically and functionally identical — same die, same 48-LQFP package, same 48 MHz / 256 KB / 32 KB specs. The only difference is the shipping medium: TR for automated pick-and-place, versus the tube/tray variant. It is a direct replacement.