N32G401K8Q7

The N32G401 series features a 32-bit ARM Cortex-M4F core with a maximum operating frequency of 72MHz, supporting floating-point operations and DSP instructions. It integrates up to 64KB embedded encrypted Flash, 8KB SRAM, and a rich set of high-performance analog components, including 1× 12-bit 4.2Msps ADC, 3× high-speed comparators, along with multiple U(S)ART, I2C, SPI, and other digital communication interfaces.

Key features

• 32-bit ARM Cortex-M4 core + FPU, DSP instruction support
• Built-in 1KB instruction cache, Flash accelerator unit for zero-wait program execution
• Up to 72MHz CPU frequency, 90DMIPS
• Up to 64KByte on-chip Flash with encrypted storage, partition management, and data protection; 10,000 erase/write cycles, 10-year data retention
• Up to 8KByte on-chip SRAM, retained in Stop2 mode, configurable retention in Standby mode
• Run, Sleep, Stop0, Stop2, and Standby modes supported
• 1x 12-bit 4.2Msps ADC, configurable as 12/10/8/6-bit, up to 16 external single-ended input channels, 3 internal single-ended input channels, differential mode support
• 3 high-speed comparators with built-in 64-level adjustable voltage reference
• HSE: 4MHz~32MHz external high-speed crystal
• LSE: 32.768KHz external low-speed crystal
• HSI: Internal high-speed RC 8MHz
• LSI: Internal low-speed RC 40KHz
• Built-in high-speed PLL
• MCO: 2-channel clock output, configurable as SYSCLK, HSI, HSE, LSI, LSE, or divided PLL clock output
• Reset: power-on/power-off/external pin reset, watchdog reset, software reset
• Programmable voltage detection
• Up to 39 + 1 GPIOs
• 4x U(S)ART interfaces: 2x USART (ISO7816, IrDA, LIN support), 2x UART
• 2x SPI interfaces, master mode up to 28Mbps (without CRC) / 20Mbps (with CRC), slave mode up to 32Mbps, I²S support
• 2x I2C interfaces, up to 1MHz, configurable master/slave mode, dual-address response in slave mode
• 1x high-speed DMA controller, 8 channels, freely configurable source and destination addresses
• 1x RTC with leap year perpetual calendar, alarm event, periodic wake-up, internal/external clock calibration
• 1x Beeper with complementary output, 12mA output drive capability
• 2x 16-bit advanced timer/counters: input capture, complementary output, quadrature encoder input, up to 7.8ns control resolution; 4 independent channels each — Timer1 supports 4 channels with 8 complementary PWM outputs, Timer8 supports 3 channels with 6 complementary PWM outputs
• 4x 16-bit general-purpose timer/counters, 4 independent channels each, input capture/output compare/PWM output support
• 1x 16-bit basic timer/counter
• 1x 16-bit low-power timer/counter, single-pulse and dual-pulse counting, operational in Stop2 mode
• 1x 24-bit SysTick
• 1x 14-bit window watchdog (WWDG)
• 1x 12-bit independent watchdog (IWDG)
• SWD/JTAG debug interface
• UART Bootloader support
• Flash encryption, multi-user partition management (MMU)
• CRC16/32 computation
• Write protection (WRP), multiple read protection (RDP) levels (L0/L1/L2)
• Secure boot, encrypted program download, secure update
• External clock failure detection, tamper detection
• 96-bit UID and 128-bit UCID
• Operating voltage: 2.4V~3.6V
• Operating temperature: -40°C~105°C
• ESD: ±4KV (HBM), ±2KV (CDM)
• Packages: LQFP32 (7mm x 7mm), LQFP48 (7mm x 7mm), QFN20 (3mm x 3mm), QFN28 (4mm x 4mm), QFN32 (4mm x 4mm), QFN48 (6mm x 6mm), TSSOP20 (6.5mm x 4.4mm)