Main features

－  Arm® Cortex®-M4F @144MHz, 180DMIPS, built-in 8KB instruction cache, supports Flash acceleration unit execution program 0 waiting

－  Large capacity encrypted memory

•  Up to 512KBytes eFlash, supports encrypted storage, partition management and data protection, supports ECC verification, 100,000 erases, and 10 years of data maintenance

•  144Kbytes SRAM, supports hardware parity

－  Power consumption mode

•  Supports Run, Sleep, Stop0, Stop2, Standby, VBAT and other modes

－  Fingerprint sensor interface

•  1 DVP interface for optical fingerprint sensor

•  1 SPI interface for semiconductor fingerprint sensor

－  Supports internal RC or external crystal clock inputs, and supports configurable clock output functions

－  High reliability reset

•  Supports power-on/power-down/undervoltage/external pin reset

•  Supports dual watchdog reset and software reset

－  Supports up to 67 GPIOs

－  Rich digital communication interfaces

•  Up to 7 serial ports: 3 USART interfaces (support 1xISO7816, 1xIrDA, LIN), 4 UART interfaces

•  3 SPI interfaces

•  1 QSPI interface

•  4 I2C interfaces

•  1 x USB2.0 Full Speed Device Interface

•  2 CAN2.0A/B bus interfaces

－  Analog interface

•  2 12bit 5Msps ADCs, supporting up to 16 external channels

•  2 12bit 1Msps DACs

•  Supports external input independent voltage reference source

－  2 high-speed DMA controllers, support 16 channels

－  Built-in calibrated RTC real-time clock, supports leap year perpetual calendar, alarm clock events, periodic wake-up

－  High-precision timing counter

•  2 16bit advanced timing counters, 6 pairs of complementary PWM outputs

•  4 16bit general timing counters, supporting 16-channel PWM outputs

•  2 16bit basic timing counters

•  2 independent watchdog counters

－  Hardware-level security features

•  Password algorithm hardware acceleration engine

•  Supports AES, DES, TDES, SHA1/224/256, SM1, SM3, SM4, SM7, MD5 algorithms

•  Flash storage encryption, multi-user partition management (MMU)

•  TRNG True Random Number Generator

•  CRC16/32 operation

•  Support write protection (WRP), multiple read protection (RDP) levels (L0/L1/L2)

•  Supports secure startup, program encryption download, and secure updates

•  Support clock failure monitoring and anti-tamping monitoring

－  96-bit UID and 128-bit UCID

－  Highly reliable working environment:

•  1.8V ～ 3.6V/-40 ℃～ 105 ℃

•  ±4kV ESD（HBM）

Typical Applications

N32G4FR series is mainly used for TWS headphones, facial recognition access control, fingerprint access control, fingerprint module, fingerprint door lock, etc.