Bridgetek FT93x Embedded Microcontrollers

Bridgetek FT93x Embedded Microcontrollers (MCUs) are 32-bit System-On-Chip (SoC) RISC MCUs for USB to multi-interface bridging and embedded applications. The FT93x series include FT930, FT931, FT932, and FT933 MCUs and features high level integration and low power consumption. These MCUs include 128kB on-chip flash memory and power-on reset. The modules transfer data at up to 25MHz and operate in an -40°C to +85°C extended temperature range. Also unique to the FT93x series is the option to use a hardcoded Bridgetek USB engine as an alternative to developing code for standard USB class enabling rapid development of USB devices with a wider range of application IO. Applications include E-meters, medical appliances, instrumentation, and more.

Bridgetek FT930, FT931, FT932, and FT933 MCUs are offered in compact 48-, 56-, and 68-pin QFN packages that are lead free and RoHS compliant.


  • High-performance, low power mixed 16-bit/32-bit FT32B core processor, running at a frequency of 100MHz
  • 128kB on-chip flash memory
  • 128kB on-chip shadow program memory
  • True zero wait states (0WS) up to 3.1 DMIPS per MHz performance
  • 32kB on-chip data memory
  • Integrated phase-locked loop (PLL) supports single external 12MHz crystal and direct external clock source input
  • Real-time clock (RTC) with automatic calibration to compensate for inaccuracies in low-cost 32.768 kHz crystal or other input source
  • D2xx hardware engine (USB 2.0 device) with up to 7 interfaces
  • One USB 2.0 device controller supports high-speed (480Mbit/s) and full-speed (12Mbit/s)
  • USB 2.0 device controller supports isochronous, interrupt, control, and bulk transfers for up to 15 endpoints
  • Supports one-wire debug for firmware download and software debugging
  • One SPI primary supports single/dual/quad modes of data transfer
  • Clock rate is up to 25MHz
  • One SPI secondary supports single data transfer up to 25MHz
  • SD host controller conformant to SDA SD host controller specification V3.0, running up to 25 MHz and software support for SD / SDHC / SDXC cards
  • I2C bus interfaces may be configured as primary or secondary, supporting standard / fast / fast-plus / high-speed mode data transfers
  • Maximum data transfer rate up to 3.4Mbit/s
  • Clock stretching is supported
  • Four UARTs configurable as two full UART interfaces or 4 half UART interfaces
  • Four 16-bit timers with prescaler and 32-bit watchdog timer
  • Supports eight independent PWM channels, PWM channel 0 and 1 may be configured as stereo audio output channels, supporting PCM 8-bit/16-bit stereo data
  • Supports two independent 10-bit DACs
    • DAC 0/1 channel output and sample rate of ~1MS/s
  • Supports three 8-bit ADC1/2/3 channel input
    • Sample rate of ~480KS/s
  • Single 3.3V power supply, built-in 1.2 V regulator
  • 3.3V I/O power supply, all GPIO pins are 5V tolerant
  • Supports USB battery charging Specification Rev 1.2
  • Power-on reset (POR)
  • -40°C to +85°C extended operating temperature range


  • E-meters
  • DAQ system industrial automation
  • Medical appliances
  • Instrumentation

Block Diagram

Block Diagram - Bridgetek FT93x Embedded Microcontrollers
Published: 2017-05-30 | Updated: 2023-04-03