MCU FAQs – FT51A

What are the different package options for FT51A?

44 pin LQFP and 48 pin WQFN = Full spec (1 x USB upstream, 1 x USB downstream, 16 digital pins, 16 analog pins)

28 pin SSOP and 32 pin WQFN = Reduced spec (1 x USB upstream, reduced digital and analog pins)

Note: Firmware can change the pin mapping through IOMUX programming.

What is special about your FT51A vs any other 8051 based design?

Firstly the 8051 core we have selected is one of the fastest currently available.

Secondly with the package options we offer from 28 pin SSOP to 48 pin QFN, we offer excellent choices for board area and cost.

Third is the USB hub feature, which you will not find elsewhere. This allows for cascading FT51A devices creating a network of sensors and control boards or connecting alternative USB peripherals to your 8051 core.

What are the key application areas for FT51?

  • USB Data Acquisition
  • General Purpose Microcontroller
  • Sensor control
  • Mass data storage for medical, industrial and test instrumentation
  • USB to RS232/RS422/RS485 Converters
  • POS Systems
  • Fitness Equipment
  • Smart Home Control
  • Weather Station
  • Keyboard with USB mouse port
  • USB Barcode Readers

What hardware do you provide?

We provide FT51A Modules which includes evaluation modules and debugger module.

What is the best way to manage software updates if the FT51A is out in the field?

The FT51A can provide a USB DFU interface, meaning that if you connect the USB device controller to a PC, you can use some simple software to update the firmware over USB, meaning that additional programming hardware is not required.

The “blank” chip Bridgetek ship includes a DFU code programmed. However example source code is available to allow users to add this DFU interface to their application code.

What is the USB class of the FT51A internal hub port?

This is user defined as it depends on firmware. We provide plenty of examples at FT51A Examples, also provided with the toolchain.

What is the power consumption of FT51A?

Operating Supply Current in normal operation (48MHz): 20mA typical (maximum 28mA).

Operating Supply Current in USB Suspend (internal clock stops): 150uA typical.

Any restrictions to the operating system?

There is no OS needed for FT51A.

Can I connect FT51A with EVE?

Yes, we provide a couple of examples which connect FT51A with EVE. Source code is available with the FT51A toolchain:

  • FT51A Sensors Example
  • FT51A Spaced Invaders Example.