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STMicroelectronics STM32F103ZCT6 — Microcontrollers & Processors (MCU / MPU / DSP)

STM32F103ZCT6 STM32F1 ARM Cortex-M3 MCU, 72 MHz

MPNSTM32F103ZCT6
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STMicroelectronics STM32F1 series, ARM® Cortex®-M3 32-bit MCU, 72 MHz, 256 KB Flash, 48 KB RAM, 112 I/O, 144-LQFP, -40°C to 85°C.

$11.3100Ref. price · indicative, final on quote
STMicroelectronics STM32F103ZCT6 datasheet (PDF)
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

STM32F103ZCT6 specifications
ParameterValue
SeriesSTM32F1
MountingSurface Mount
Oscillator typeInternal
Program memory typeFLASH
Voltage - supply (Vcc (Vdd))2V ~ 3.6V
Operating temperature-40°C ~ 85°C (TA)
Speed72MHz
PackageTray
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 STM32F103ZCT6: 112 I/O lines, 21-channel 12-bit ADC, and 2-channel 12-bit DAC.

Connectivity covers CANbus, USB, two I2C, three SPI, and five UART/USART with IrDA and LIN support. The 144-LQFP (20x20 mm) package gives access to all 112 GPIOs, which is the deciding factor when routing a dense backplane or a multi-axis drive with per-channel encoder and limit-switch inputs.

The STM32F103 series has broad second-source availability through the ST distribution network and independent channels, which supports dual-sourcing strategies for supply resilience.

Frequently asked questions

What is the difference between STM32F103ZCT6 and STM32F103VCT6?

The STM32F103ZCT6 comes in a 144-LQFP package with 112 I/O, while the STM32F103VCT6 is a 100-LQFP package with 80 I/O. Both share the same 72 MHz Cortex-M3 core, 256 KB Flash, and 48 KB RAM. The ZCT6 is the part to pick when you need the extra GPIO for parallel buses or dense sensor arrays.