C8051T63x OTP EEPROM Microcontrollers

The C8051T63x small microcontroller (MCU) family is pin-for-pin compatible with the C8051F33x series but offers cost-effective OTP EEPROM memory instead of flash EEPROM memory. Designers can use flash EEPROM for system development and early production, then move to an OTP EEPROM version to obtain a cost savings when in volume production.

With on-chip power-on reset, VDD monitor, watchdog timer and a clock oscillator, the C8051T630/1/2/3/4/5 devices are truly stand-alone, system-on-a-chip solutions. User software has complete control of all peripherals, and may individually shut down any or all peripherals for power savings.

Core Frequency
25 Mhz

C8051T63x Common Specs

  • 25 MIPS
  • 8 kB EPROM
  • 10-bit DAC
  • 768 bytes data RAM
  • 1.8 to 3.6 V supply
  • –40 to 85 ºC operating range
  • On-chip voltage comparator
  • Four general-purpose 16-bit timers
  • 17 Port I/O
  • Two internal oscillators


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Part Number MCU Core MHz Flash (kB) RAM (kB) Dig I/O Pins 5 Volt Tolerant ADC 1 USB Temp Sensor Timers (16-bit) PCA Channels ADC 2 DAC Comparators UART SPI I2C HS I2C Slave I2S EMIF CAN LIN AES AEC-Q100 Vdd (min) Vdd (max) Package Type Package Size (mm) Internal Osc. VREF Debug Interface Other

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