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STMicroelectronics STM32F103ZCT7TR — Microcontrollers & Processors (MCU / MPU / DSP)

ST STM32F103ZCT7TR ARM Cortex-M3 MCU, 72MHz, 256KB Flash

MPNSTM32F103ZCT7TR
Active

STMicroelectronics STM32F103 series, ARM Cortex-M3 32-bit MCU, 72MHz, 256KB Flash, 48K x 8 RAM, CAN/I2C/SPI/USART/USB, 112 I/O, 144-LQFP, -40°C to 105°C.

$10.6800Ref. price · indicative, final on quote
STMicroelectronics STM32F103ZCT7TR datasheet (PDF)
Packaging144-LQFP
RoHSROHS3 Compliant
SeriesSTM32F1
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

STM32F103ZCT7TR specifications
ParameterValue
SeriesSTM32F1
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C ~ 105°C (TA)
Speed72MHz
PackageTape & Reel (TR) Cut Tape (CT)
RAM size48K x 8
Core size32-Bit Single-Core
PeripheralsDMA, Motor Control PWM, PDR, POR, PVD, PWM, Temp Sensor, WDT
ConnectivityCANbus, I²C, IrDA, LINbus, SPI, UART/USART, USB
Number of i (O)112
Core processorARM® Cortex®-M3
Case144-LQFP
Data convertersA/D 21x12b; D/A 2x12b
Program memory size256KB (256K x 8)

Product details

The STM32F103ZCT7TR: The 144-LQFP package gives access to 112 I/O lines, enough to handle parallel displays, external memory buses, or a dense sensor array without a port expander.

Peripheral set for industrial bus nodes

On-chip CAN, USB, and up to five UART/USART channels make this a natural fit for gateway designs that bridge a CANopen fieldbus to a USB diagnostic port. The motor-control PWM timer and DMA controller offload the core for closed-loop drive algorithms. Two 12-bit DACs and a 21-channel 12-bit ADC handle analog feedback from current-sense resistors or thermistors.

Frequently asked questions

Does STM32F103ZCT7TR have built-in USB?

Yes, the connectivity set includes USB along with CAN, I²C, IrDA, LINbus, SPI, and UART/USART interfaces.

Does STM32F103ZCT7TR require an external crystal?

For precise USB timing or accurate baud rates, an external crystal or resonator is typically still recommended.

What is the closest functional equivalent to STM32F103ZCT7TR?

Within the STM32 portfolio, the STM32L151CBU6A is a lower-power Cortex-M3 sibling, but it runs at 32 MHz (versus 72 MHz), has 37 I/O (versus 112), and is rated to 85°C (versus 105°C). It is not a pin-compatible drop-in — the package and I/O count differ significantly.