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N32H785EC

The N32H785EC series adopts a high-performance dual-core architecture. The ARM Cortex-M7 core serves as the main core, running at frequencies up to 600MHz, supporting double-precision floating-point operations and DSP instructions. The Cortex-M4 core serves as the auxiliary core with a maximum operating frequency of up to 300 MHz.It features (2/4MB) on-chip FLASH, integrates up to 1504KB of SRAM (including 1024KB TCM SRAM and 480KB SRAM) + 4KB Backup SRAM. It includes 3 12-bit 5Msps ADCs, 4 high-speed comparators, 6 12-bit DACs, and integrates multiple high-speed communication interfaces: U(S)ART, I2C, xSPI, SPI, USBHS Dual Role, CAN-FD, SDRAM, FEMC, SDMMC, 10/100/1000M Ethernet and EtherCAT.

The series supports digital camera interface (DVP), TFT-LCD graphical interface, JPEG hardware codec and GPU. It features a built-in high-performance encryption algorithm hardware acceleration engine, supporting AES/TDES, SHA algorithms, TRNG true random number generator, and CRC8/16/32. It supports up to 168 GPIOs, and is available in LQFP176, BGA240+25 packages.

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Main Features

• Dual-core Architecture CPU (Cortex-M7 and Cortex-M4F)

ARM Cortex-M7

♦  32-bit ARM Cortex-M7 core with a double-precision floating-point unit, supporting DSP instructions and MPU

♦  Built-in 32 KB instruction Cache and 32 KB data Cache with ECC

♦  Maximum operating frequency of 600 MHz, delivering 1284 DMIPS

ARM Cortex-M4F

♦  32-bit ARM Cortex-M4F core with FPU, featuring single-cycle hardware multiplication and division instructions, and supporting DSP instructions and MPU

♦  Built-in 16 KB instruction Cache and 16 KB data Cache with parity check, supporting zero-wait execution of programs via the Flash accelerator unit

♦  Maximum operating frequency of 300 MHz, delivering 375 DMIPS

• Encrypted Memory

On-chip Flash (2/4MB), supports encrypted storage and automatic program decryption during execution

1504KB built-in SRAM, supports ECC verification

♦  1024KB TCM SRAM, configurable as D-TCM, I-TCM or SRAM

♦  480KB on-chip SRAM

4KB Backup SRAM, supports ECC

• Operating Modes

Run mode

SLEEP mode: AXI enabled, AHB enabled

Stop0 mode: SRAM, TCM, RTC, LSE, IWDG enabled

Stop2 mode: Flash standby mode, SRAM, TCM, RTC, LSE, IWDG, Backup SRAM, backup registers enabled, I/O maintained

Standby mode: Backup SRAM, RTC, IWDG, LSE, backup registers enabled, SRAM, TCM disabled

VBAT mode: Backup SRAM, RTC, LSE, backup registers enabled

• Clock

4MHz~48MHz external high-speed crystal

4MHz~50MHz external clock input

32.768KHz external low-speed crystal

Built-in 3 high-speed PLLs

Built-in MSI clock, supporting configuration of 31.25K/62.5K/125K/250K/500K/1M/2M/4M/8M/16MHz clocks

Internal high-speed RC 64MHz

Internal low-speed RC 32KHz

• Reset

―  Supports power-on/power-down/external pin reset

―  Supports watchdog reset and software system reset

―  Supports programmable voltage detection

• High-Speed Communication Interfaces

―  8 USART interfaces/7 UART interfaces, supporting ISO7816, IrDA, LIN

―  2 LPUART interfaces

―  7 SPI interfaces, supporting master/slave modes, rates up to 50 MHz

―  10 I2C interfaces, rates up to 3.4 MHz, configurable master/slave modes, dual address response in slave mode

―  2 USBHS Dual Role interfaces

―  8 CAN-FD bus interfaces

―  2 Ethernet MAC interface, ETH1 supports 10M/100M/1000M communication rates, ETH2 supports 10M/100M communication rates . Supports IEEE 1588 time synchronization protocol

―  1 EtherCAT slave interface (ESC) with a transmission rate of up to 100 Mbit/s, supporting 2 MII ports, 8 Fieldbus Memory Management Units (FMMU), 8 Sync Managers (SM), and a 64-bit Distributed Clock (DC).

• High-Performance Analog Interfaces

―  3 12-bit 5Msps ADCs, supporting 12-bit, 10-bit resolution, hardware oversampling up to 16-bit, supporting single-ended and differential modes

―  4 high-speed analog comparators

―  6 12-bit DACs, of which 2 1Msps DACs support output with or without Buffer separately, internal output only supports mode without Buffer; simultaneous internal and external output must enable Buffer; the other 2 DACs only support 1 output channel to the internal chip, with 15Msps sampling rate, supporting internal output without Buffer

―  2 MCO outputs, configurable to output SYSCLK, HSE, MSI, LSE, LSI, HSI64 or PLL clock division

―  Supports 1 reference voltage VREFBUF (configurable as 1.5V/1.8V/2.048V/2.5V)

―  1 temperature sensor

• Audio Interfaces

―  4 I2S, supporting master/slave modes, audio sampling frequencies from 8KHz to 192KHz

―  8 PDM digital microphone interfaces built into DSMU

• Memory Extension Interfaces

―  1 FEMC (Flexible External Memory Controller) interface, bus rate 100 MHz, SRAM/PSRAM/Nor Flash supporting configurable 16/32-bit data width, NAND Flash supporting configurable 8/16-bit data width

―  1 xSPI interface, supporting 1/2/4/8-bit data width, configurable master/slave, rates up to 133 MHz, can be used for external SRAM, PSRAM and Flash, supports XIP

―  1 SDRAM interface, rates up to 133 MHz

―  2 SDMMC interfaces, supporting SD/SDIO 3.0, eMMC 4.51 format, rates up to 104MHz

• Image Processing Interfaces

―  2 digital camera interface (DVP), supporting 8/10/12/16bit, rates up to 110MHz

―  1 TFT-LCD display interface, supporting up to 24-bit parallel digital RGB LCD, providing all signal interfaces, can directly connect to various LCD and TFT panels, resolution up to 1920x1080

―  Built-in 2.5D graphics processor, supporting image scaling, rotation, blending, anti-aliasing, texture mapping, etc.

―  Hardware JPEG codec

• Maximum support for 168 GPIOs, low-speed GPIOs support 5V tolerance (under VDD = 3.3V ±10% conditions)

• Motor control Cordic accelerator, supporting trigonometric and hyperbolic function acceleration, supporting floating-point input and output

• Delta Sigma Module Unit (DSMU)

• Built-in filtering algorithm accelerator FMAC, supporting FIR, IIR filtering

• 3 high-speed DMA controllers, each controller supporting 8 channels, 1 MDMA supporting 16 channels, freely configurable channel source and destination addresses

• RTC real-time clock, supporting leap year perpetual calendar, alarm events, periodic wake-up, supporting internal and external clock calibration

• Timer Counters

―  2 16bit super high-resolution timer (SHRTIM1/ SHRTIM2). Supports maximum control precision of 100ps, Each super high-resolution timer counter consists of 1 master timer unit and 6 16-bit slave timer units. each timer unit has 2 independent channels. Supports 12 independent PWM outputs or 6 pairs of complementary PWM outputs.

―  4 16-bit advanced timer counters, supporting input capture, complementary output, quadrature encoding input and other functions, highest control precision 3.3ns; each timer has 6 independent channels, of which 4 channels support 4 pairs of complementary PWM outputs

―  10 16-bit general-purpose timers (GTIMA1~GTIMA7, GTIMB1~ GTIMB3), each timer with 4 independent channels, supporting input capture, output compare, PWM generation

―  4 32-bit basic timer counters (BTIM1~4)

―  5 16-bit low-power timers (LPTIM1~5), can work in Stop2 mode

―  2x 24-bit SysTick, 2x 14-bit window watchdog (WWDG), 2x 12-bit independent watchdog (IWDG)

• Programming Methods

―  Supports SWD/JTAG online debugging interface

―  Supports USB, USART Bootloader

• Security Features

―  FLASH has up to 4 encryption partitions, supporting storage encryption

―  Supports write protection (WRP), multiple levels of read protection (RDP) (L0/L1/L2)

―  Built-in password algorithm hardware acceleration engine, supporting AES/TDES, SHA, algorithms

―  TRNG true random number generator, CRC8/16/32 operations

―  Supports secure boot, encrypted program download, secure update, supports external high-speed and low-speed clock failure detection

―  Supports tamper detection

• OTP supports 128-bit UCID

• Operating Conditions

Operating voltage range:

♦  2.3V~3.6V

♦  Chip junction temperature range: -40°C~125°C

Technical Support
Should you have any questions, please feel free to contact us and we will reply to you as soon as possible.