The FT62F28X is a high-performance, reduced instruction set, 8-bit touch-type microcontroller. It integrates 28 touch keys internally, and only requires one external reference capacitor to realize touch functionality, making it applicable to touch-related products. In terms of analog functions, the chip contains a multi-channel 12-bit A/D converter, 1 operational amplifier, and 2 comparators. In terms of protection functions, it includes internal protection features such as a watchdog timer, low-voltage reset, and low-voltage detection. In terms of communication interfaces, the chip integrates 1 I2C, 1 SPI, and 2 UART interfaces. In addition, the chip also has 3 built-in timers/counters, which can be used for timing and generating 16-bit resolution PWM functions. The chip contains 30 independently controlled IOs, suitable for occasions requiring multiple IOs.

Product Introduction:

The FT62F28X is a high-performance, reduced instruction set 8-bit microcontroller with touch capabilities. It integrates 28 touch keys internally and only requires one external reference capacitor to achieve touch functionality, making it suitable for touch-related products. In terms of analog functions, the chip includes a multi-channel 12-bit A/D converter, 1 operational amplifier, and 2 comparators. For protection, it features internal protection characteristics such as a watchdog timer, low-voltage reset, and low-voltage detection. Regarding communication interfaces, the chip integrates 1 I2C, 1 SPI, and 2 UART interfaces. Additionally, the chip has 3 built-in timers/counters that can be used for timing and generating 16-bit resolution PWM functionality. The chip includes 30 independently controlled I/Os, suitable for applications requiring multiple I/Os.

Application Areas:

Electronic measuring instruments, household appliances, toys, etc.

CPU Characteristics:

• Operating Voltage: 1.9V~5.5V
• Operating Temperature Range: -40℃~85℃
• RISC architecture, only 37 instructions to learn
  • All instructions are single-cycle except for branch jumps
• Optional instruction cycle: 2T/4T
  • Minimum instruction cycle is 125ns (VDD>2.7V)
• Storage Architecture
  • Program Memory: 8K x 14bits
  • Data RAM: 616 x 8bits
  • Data EEPROM: 128 x 8bits
• 8-level hardware stack
• Low-power SLEEP mode
  • System clock can be selected to remain running or be turned off

Peripheral Characteristics:

• 28 touch keys
• Clock Source
  • 13.5M/16M high-speed, high-precision HIRC
  • 32K low-speed, low-power LIRC
  • Crystal oscillator and external clock input
  • Crystal clock missing detection
• 30 bidirectional I/Os
• Timers
  • 1 x 8-bit basic Timer0
  • 1 x 16-bit Timer2, with 4-bit prescaler and 4-bit post-scaler, supports complementary PWM with dead time
  • 1 x 12-bit Timer1, selectable clock source
• 16-bit watchdog timer with 3-bit post-scaler, selectable clock source
• Power-on reset delay counter
• 12-bit ADC with 30 external channels and 3 internal reference voltage channels
• Communication Interfaces
  • 1 x I2C
  • 1 x SPI
  • 2 x UART
• 2 comparators, with 7-bit DAC
• 1 operational amplifier, output can be used as an ADC channel
• Low-voltage reset LVR: 2.0V/2.2V/2.5V/2.8V/3.1V/3.6V/4.1V
• Low-voltage detection LVD: 1.2V/2.0V/2.4V/2.7V/3.0V/3.3V/3.6V/4.0V or external input voltage
• Supports ISP and online debugging OCD