N32WB452REQ6

The N32WB452 series is a BLE 5.0 MCU chip based on a dual-core 32-bit ARM Cortex-M4F + Cortex-M0 architecture, featuring TX/RX current consumption of 3.5mA, transmit power of +3dBm, receive sensitivity of -94dBm, main frequency of 144MHz with floating-point and DSP instruction support, integrated 512KB Flash, 144KB SRAM, 7x U(S)ART, 4x I2C, 3x SPI, 2x CAN 2.0B, 1x USB 2.0 FS Device, 1x XFMC, 1x SDIO, digital video interface, 2x 12-bit 5Msps ADC, 2x 1Msps 12-bit DAC, up to 18-channel capacitive touch key support, and a built-in cryptographic algorithm hardware acceleration engine.

Key features

• 2.4 GHz RF transceiver, BLE5.0 support
• High receiver sensitivity (–94dBm@BLE)
• Programmable TX power, up to +3dBm
• Integrated Balun/matching network
• RX current: 3.5mA@3.0V (DCDC)
• TX current: 3.6mA@3.0V/0dBm (DCDC)
• Dual-core architecture: 32-bit ARM Cortex-M4 + Cortex-M0; the 32-bit ARM Cortex-M0 serves as a dedicated co-processor for BLE5.0 RF and Bluetooth core protocol, communicating with the ARM Cortex-M4 application processor via internal bus
• 32-bit ARM Cortex-M4 core + FPU, single-cycle hardware multiply/divide, DSP instructions and MPU support
• Built-in 8KB instruction cache, Flash acceleration unit for zero-wait program execution
• Up to 144MHz CPU frequency, 180DMIPS
• 512KB on-chip Flash + 128KB ROM; Flash supports encrypted storage, partition management, data protection, hardware ECC, 100K erase/write cycles, 10-year data retention
• 144KB on-chip SRAM (including 16KB Retention RAM), hardware parity check support
• STANDBY mode: 2.5µA — 84 backup registers retained, all IOs retained, optional RTC run, 16KB Retention SRAM retained, VBAT pin independent supply support, 100µS fast wake-up
• STOP2 mode: 6µA — RTC run, 16KB Retention SRAM retained, CPU registers retained, all IOs retained, 40µS fast wake-up
• STOP0 mode: 90µA — RTC run, all SRAM retained, all IOs retained, 20µS fast wake-up
• HSE: 4MHz–32MHz external high-speed crystal
• LSE: 32.768KHz external low-speed crystal
• HSI: Internal high-speed RC OSC 8MHz
• LSI: Internal low-speed RC OSC 40KHz
• Built-in high-speed PLL
• 1x clock output, configurable as system clock, HSE, HSI, or post-PLL divided output
• 32MHz external high-speed crystal
• 32.768KHz external low-speed crystal
• Internal high-speed RC OSC 32MHz
• Internal low-speed RC OSC 32KHz
• Power-on / power-down / external pin reset support
• Programmable low-voltage detection and reset
• Watchdog reset support
• Up to 65 GPIOs with multiplexed functions, max toggle speed 50MHz, most GPIOs 5V tolerant
• 7x U(S)ART interfaces, up to 4.5Mbps; includes 3x USART (1×ISO7816, 1×IrDA, LIN support) and 4x UART
• 3x SPI interfaces up to 36MHz, 2 of which support I2S
• 4x I2C interfaces up to 1MHz, master/slave configurable, dual-address response in slave mode
• 1x USB2.0 Full-Speed Device interface
• 2x CAN 2.0B interfaces
• 1x SDIO interface (QFN88), SD/MMC/eMMC support
• XFMC (Flexible Memory Controller) interface for SRAM, PSRAM, NOR/NAND Flash, and TFT-LCD expansion
• 1x DVP (Digital Video Port)
• 2x 12-bit 5Msps high-speed ADC, configurable as 12/10/8/6-bit; up to 9Msps in 6-bit mode; up to 16 external single-ended input channels, differential mode support
• Up to 18-channel capacitive touch key, wake-up from low-power state support
• 2x 12-bit DAC, 1Msps sample rate
• External independent reference voltage input support
• All analog interfaces support full-voltage operation from 1.8V to 3.6V
• 2x high-speed DMA controllers, 8 channels each, freely configurable source and destination addresses
• RTC with leap year perpetual calendar, alarm events, periodic wake-up, internal/external clock calibration support
• 2x 16-bit advanced timer/counters — input capture, output compare, PWM output, quadrature encoder input; max control resolution 6.9nS; 4 independent channels each, 3 channels supporting 6-channel complementary PWM output
• 4x 16-bit general-purpose timer/counters, 4 independent channels each, input capture/output compare/PWM output support
• 2x 16-bit basic timer/counters
• 1x 24-bit SysTick
• 1x 7-bit Window Watchdog (WWDG)
• 1x 12-bit Independent Watchdog (IWDG)
• SWD/JTAG debug interface support
• UART and USB Bootloader support
• Built-in hardware crypto acceleration engine: AES, DES, SHA, SM1, SM3, SM4, SM7, MD5
• Flash encrypted storage, multi-user partition management (MMU)
• TRNG true random number generator
• CRC16/32 computation
• Write protection (WRP) and multiple read protection (RDP) levels (L0/L1/L2)
• Secure boot, encrypted program download, secure update support
• Clock failure detection and tamper detection support
• 96-bit UID and 128-bit UCID
• Operating voltage: 1.8V–3.6V
• Operating temperature: -40°C–85°C
• ESD: ±4KV (HBM), ±1KV (CDM)