C8051F33x Small Form Factor Microcontrollers

The C8051F33x small microcontroller (MCU) devices are available in 20-pin and 24-pin packages and include up to 16 kB flash with 10-bit ADC and 10-bit DAC. A pin-for-pin compatible one-time Programmable (OTP) EEPROM version is also available (C8051T63x).

With on-chip Power-On Reset, VDD monitor, Watchdog Timer, and a clock oscillator, the C8051F33x devices are truly stand-alone system-on-a-chip solutions. The Flash memory of these small MCUs can be reprogrammed even in-circuit, providing non-volatile data storage, and also allows field upgrades of the 8051 firmware. User software has complete control of all peripherals and may individually shut down any or all peripherals for power savings.

DAC resolution
10-bit
Packages as small as
4x4 mm

C8051F33x Common Specs

  • 25 MIPS 8051 CPU
  • 2 to 8 kB Flash
  • 768 B RAM
  • 10-bit, 200 ksps, 16-ch. ADC (F330/32/34 only)
  • 10-bit DAC (F330 only)
  • 17 digital I/O, 5 V tolerant
  • 2.7 to 3.6 V supply
  • –40 to +85 °C operating temperature
  • On-chip debug
  • 24-pin QFN or 20-pin QFN
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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
8051 25 8 0.75 17 10-bit, 16-ch., 200 ksps 4 3 10-bit, 1-ch. 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN20 4x4 ±2 C2
8051 25 8 0.75 17 4 3 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN20 4x4 ±2 C2
8051 25 4 0.75 17 10-bit, 16-ch., 200 ksps 4 3 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN20 4x4 ±2 C2
8051 25 4 0.75 17 4 3 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN20 4x4 ±2 C2
8051 25 2 0.75 17 10-bit, 16-ch., 200 ksps 4 3 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN20 4x4 ±2 C2
8051 25 2 0.75 17 4 3 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.75 17 10-bit, 16-ch., 200 ksps 4 3 10-bit, 1-ch. 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.75 17 4 3 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN20 4x4 ±2 C2
8051 25 16 0.75 21 10-bit, 16-ch., 200 ksps 4 3 10-bit, 1-ch. 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN24 4x4 ±2 C2
8051 25 16 0.75 21 4 3 1 1 1 1 0 0 0 0 0 2.7 3.6 QFN24 4x4 ±2 C2

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