STM32F101ZCT6 - ARM Cortex-M3 MCU, 256KB Flash, 144-LQFP | STMicroelectronics
MPN: STM32F101ZCT6 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.55 | $75.50 |
| 100 | $6.48 | $648.00 |
| 500 | $5.62 | $2,810.00 |
| 1,000 | $4.95 | $4,950.00 |
STM32F101ZCT6 Overview
An ARM Cortex-M3 microcontroller is a 32-bit RISC processor core designed by Arm Holdings, featuring Thumb-2 instruction set, hardware single-precision multiply, and a Nested Vectored Interrupt Controller (NVIC). The STM32F101 family belongs to the broader STM32 ecosystem, which sits within the hierarchy: microcontroller -> embedded MCU -> semiconductor -> integrated circuit. Compared with the F0 (Cortex-M0) and F4 (Cortex-M4) families, the F1 family targets mainstream applications with low cost, simple peripherals, and broad tool support.
The device features 256 KB of single-bank Flash, 32 KB SRAM, up to 112 general-purpose I/O, three 12-bit ADCs (1 µs conversion), up to ten timers, USB full-speed device, two CAN 2.0B controllers, three USARTs, two SPIs, and two I²C buses. The integrated voltage regulator supports 2.0–3.6 V single-supply operation with brown-out reset and programmable voltage detector, allowing direct Li-ion or 3.3 V system-rail connection.
From an architectural standpoint, the STM32F101ZCT6 uses a 3-stage pipelined Cortex-M3 core with single-cycle multiplier and hardware divide (2–12 cycles). The bus matrix arbitrates between the CPU DMA core, Flash/7-three code, SRAM, and peripheral bridges (APB1/APB2). This multi-bus topology lets USB/CAN transfer work while the CPU executes from Flash without contention, simplifying firmware development.
Typical applications include industrial motor drives, USB HID peripherals, CAN-node industrial controllers, building automation gateways, HVAC controls, smart-metering nodes, and consumer appliances requiring moderate processing, mixed-signal performance, and abundant I/O.
A key design consideration: at 72 MHz operation, design PCB layout with 4-layer stack-up, decoupling capacitors placed within 5 mm of each supply pin, and crystal traces guarded by ground to meet USB and CAN EMC requirements. The 144-pin LQFP has generous ground pins for low-impedance return paths.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, optimized for engineers searching for an STM32F101 access-line replacement or pin-compatible second source.
Drop-in alternatives for STM32F101ZCT6 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with STM32F101ZCT6 (same form factor and footprint) — differing in CAN, Communication Interfaces, Flash Memory, Operating Temperature, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
STM32F103ZCT6
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →STM32F100ZCT6
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F105ZCT6
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F107ZCT6
✅ Drop-In📋 Reference alternative (not in catalog)
GD32F103ZCT6
✅ Drop-In📋 Reference alternative (not in catalog)
STM32F101ZCT6 Maximum Ratings & Electrical Characteristics
| Core Architecture | ARM Cortex-M3 32-bit RISC |
| Maximum CPU Clock | 36 MHz |
| Flash Memory | 256 KB |
| SRAM | 32 KB |
| Package | LQFP-144 (20x20 mm) |
| Supply Voltage Range | 2.0 V to 3.6 V |
| I/O Pins | 112 |
| ADC | 3x 12-bit, 1 µs conversion |
| USB | USB 2.0 Full-Speed Device |
| CAN | 2x CAN 2.0B active |
| Timers | Up to 10 (including advanced-control PWM) |
| Communication Interfaces | 3x USART, 2x SPI, 2x I²C |
| Operating Temperature | -40 °C to +85 °C |
| RoHS Status | Compliant |
| Mounting Type | Surface Mount |
STM32F101ZCT6 lqfp-144 (20x20 mm) Pin Configuration Guide
Pin configuration for STM32F101ZCT6 (lqfp-144 (20x20 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for STM32F101ZCT6.
Refer to the datasheet for full pin configuration.
Typical Applications
STM32F101ZCT6 is suitable for 6 applications: Industrial CAN-Bus Motor Controller, USB HID Peripheral / Data-Acquisition Device, Building Automation Gateway, Smart-Meter / Energy Monitor Node, Consumer Appliance Control Board, HVAC Climate-Control Module.
Industrial CAN-Bus Motor Controller
The STM32F101ZCT6's dual CAN 2.0B controllers and 12-bit ADC suite make it a strong fit for industrial motor drives. With 256 KB on-chip Flash and 32 KB SRAM, the device hosts CANopen or DeviceNet stacks without external memory. Its 10 timers include advanced-control PWM units needed for field-oriented control of three-phase BLDC or PMSM motors. The LQFP-144 footprint exposes up to 112 GPIO, sufficient for encoder, Hall-sensor, fault, and gate-driver interfaces. According to the STMicroelectronics datasheet, the F101 integrates two CAN controllers operating at 1 Mbaud, suiting distributed industrial networks.
Recommended
USB HID Peripheral / Data-Acquisition Device
With integrated USB 2.0 Full-Speed device (12 Mbps) and 256 KB Flash, the STM32F101ZCT6 fits USB HID peripherals such as custom keypads, jog-shuttles, and lab data-acquisition front-ends. The 36 MHz Cortex-M3 core sustains 12 Msps ADC aggregate throughput when paired with three independent 12-bit ADCs (1 µs conversion). USB peripheral library examples ship with STM32 firmware packages, cutting firmware-development time. The LQFP-144 package exposes ample GPIO for parallel sensor arrays, isolation barriers, and status LEDs without external glue logic.
Recommended
Building Automation Gateway
The STM32F101ZCT6 is well suited for building-automation gateways that bridge RS-485, KNX-style buses, and CAN. Its three USARTs and two I²C buses handle sensor and HVAC-panel peripherals concurrently, while CAN controllers carry high-speed backbone traffic. The 32 KB SRAM holds BACnet/Modbus stacks without external memory. Brown-out reset and programmable voltage detector ensure reliable operation on noisy 24 V industrial rails stepped down to 3.3 V.
Recommended
Smart-Meter / Energy Monitor Node
Energy-meter designs benefit from the STM32F101ZCT6's three 12-bit ADCs (1 µs each) that simultaneously sample voltage and current channels. With 256 KB Flash, the device hosts metrology algorithms, RMS calculations, and DLMS/COSEM protocol stacks. The integrated USB device enables field firmware-upgrades without external programmers. The 144-LQFP package handles optocoupler-isolated communication lines and tamper-detection inputs.
Recommended
Consumer Appliance Control Board
The STM32F101ZCT6 drives washing-machine, induction-cooktop, and dishwasher control boards thanks to its 10 timers (including advanced-control PWM), 12-bit ADC, and Cortex-M3 deterministic interrupt response. The 256 KB Flash accommodates display UI state machines plus motor-control libraries. The LQFP-144 footprint enables single-layer board layout for high-volume consumer products.
Recommended
HVAC Climate-Control Module
The STM32F101ZCT6 is a strong fit for HVAC climate-control modules requiring multiple temperature sensors (NTC), fan-speed control, and display interfacing. Two I²C buses drive temperature/humidity sensors and EEPROM, and three 12-bit ADCs digitise analog inputs in parallel for closed-loop fan control. The 36 MHz Cortex-M3 delivers real-time PID loop execution at 1 ms periods.
Recommended
Recommended Products Summary
Engineering reference data for STM32F101ZCT6 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | STM32F103ZCT6 | STM32F100ZCT6 | STM32F105ZCT6 | GD32F103ZCT6 |
|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | GigaDevice |
| Package | LQFP-144 | LQFP-144 (same) | LQFP-144 (same) | LQFP-144 (same) | LQFP-144 (same) |
| Core | Cortex-M3 36 MHz | Cortex-M3 72 MHz | Cortex-M3 24 MHz | Cortex-M3 72 MHz | Cortex-M3 108 MHz |
| Flash | 256 KB | 256 KB | 256 KB | 256 KB | 256 KB |
| SRAM | 32 KB | 48 KB | 24 KB | 64 KB | 48 KB |
| USB | USB FS Device | USB FS Device | None | USB OTG FS | USB FS Device |
| CAN | 2x CAN 2.0B | 1x CAN 2.0B | 1x CAN 2.0B | 2x CAN 2.0B | 1x CAN 2.0B |
| Ethernet MAC | No | No | No | No | Yes |
| Supply Voltage | 2.0 - 3.6 V | 2.0 - 3.6 V | 2.0 - 3.6 V | 2.0 - 3.6 V | 2.6 - 3.6 V |
Key Differentiators
- Dual integrated CAN 2.0B controllers in this density tier (vs STM32F103ZCT6)
- Cortex-M3 at 36 MHz with 256 KB Flash in the access line price tier (vs GD32F103ZCT6)
- Active production status with broad second-source ecosystem (vs STM32L152ZCT6TR)
Design Notes
The STM32F101ZCT6 has separate VDD/VDDA/VBAT pins. Decouple VDD pins with 100 nF ceramic capacitors placed within 5 mm of each pin, and add a single 4.7 µF bulk capacitor on each supply rail. According to STMicroelectronics application note AN2586, separate VDDA filtering with a ferrite bead reduces ADC noise by up to 2 LSB. Use a 2.2 µF capacitor on VREF+ if the ADC operates at full 1 Msps.
Route the 8 MHz HSE crystal traces symmetrically within a ground guard ring, keeping trace length under 5 mm. USB D+/D- traces must be 90 Ω differential with length matching within 2 mm. The LQFP-144 package has 22 ground pins; stitch them with vias to an internal ground plane for low-impedance return paths. Place decoupling capacitors on the opposite side of the PCB directly under their respective supply pins.
Do not drive the BOOT0 pin floating; tie it to ground via 10 kΩ for standard boot from Flash. Enable the integrated voltage regulator's power-on reset delay by connecting NRST to VDD through 10 kΩ with 100 nF to ground. The LQFP-144 footprint allows easy migration to STM32F103/F105/F107 family parts with no PCB changes, so design the application to needlessly inherit this forward compatibility.
Estimated: at maximum CPU activity (36 MHz, all peripherals enabled, 3.6 V supply), the STM32F101ZCT6 dissipates approximately 80 mA * 3.3 V ≈ 264 mW. The LQFP-144 with 22 thermal ground pins achieves θJA ≈ 35 °C/W on a 4-layer JEDEC test board, yielding a junction-to-ambient rise of ~9 °C. No heatsink needed for industrial -40 °C to +85 °C operation. Verify with thermal simulation if sealing the enclosure.
Compliance Information
RoHS compliant per ST product page. Not AEC-Q100 qualified; not applicable for automotive safety-critical. Frees with IEMCG / EPU / ECCN EAR99 export classification.
