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C8051F90x-91x Ultra Low-Power MCUs

The C8051F90x/1x is the industry’s lowest power microcontroller (MCU), consuming as little as 160 µA/MHz in active mode and 10 nA in sleep mode with full memory retention. C8051F90x/1x expands the award-winning C8051F92x/3x low power MCU product portfolio by offering lower memory devices with further power reduction and a higher resolution ADC. C8051F90x/1x low power MCUs are fully software and hardware compatible with C8051F92x/3x MCUs and operate from 0.9 – 3.6 V to enable single cell battery designs.

C8051F9xx ultra low-power MCUs have been designed from the ground up to be the most power-efficient MCUs in the industry. The end result is a solution that has been optimized to be the industry’s best across all metrics necessary to be truly considered low power – active mode, sleep mode and wake-up time.

Sleep current as low as
50nA
Min Vdd
0.9 V

C8051F90x-91x Common Specs

  • Industry’s lowest active and sleep currents
  • 160 µA/MHz active mode
  • 10 nA sleep with BOD disabled
  • 50 nA sleep with BOD enabled
  • 300 nA sleep with internal RTC
  • 600 nA sleep with external crystal
  • LDO voltage regulator
  • 2 µS wake-up time
  • 1.5 µS analog settling time
  • 25 MHz, single-cycle 8051 compatible CPU
  • 12-bit ADC
  • Up to 16 kB Flash, 512 bytes SRAM
  • 768 bytes of SRAM
  • 0.9 – 3.6 V operation
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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
C8051F901-GM (NRND)
Dev Kit
8051 25 8 0.75 16 10-bit, 15-ch., 300 ksps 4 6 — — 2 1 2 1 0 0 0 0 0 0.9 3.6 QFN24 4x4 ±2 C2
C8051F901-GU (NRND)
Buy Dev Kit
8051 25 8 0.75 16 10-bit, 15-ch., 300 ksps 4 6 — — 2 1 2 1 0 0 0 0 0 0.9 3.6 QSOP24 8.65x3.9 ±2 C2
C8051F902-GM (NRND)
Dev Kit
8051 25 8 0.75 16 12-bit, 15-ch., 75 ksps 4 6 — — 2 1 2 1 0 0 0 0 0 0.9 3.6 QFN24 4x4 ±2 C2
C8051F902-GU (NRND)
Buy Dev Kit
8051 25 8 0.75 16 12-bit, 15-ch., 75 ksps 4 6 — — 2 1 2 1 0 0 0 0 0 0.9 3.6 QSOP24 8.65x3.9 ±2 C2
C8051F911-GM (NRND)
Buy Dev Kit
8051 25 16 0.75 16 10-bit, 15-ch., 300 ksps 4 6 — — 2 1 2 1 0 0 0 0 0 0.9 3.6 QFN24 4x4 ±2 C2
C8051F911-GU (NRND)
Dev Kit
8051 25 16 0.75 16 10-bit, 15-ch., 300 ksps 4 6 — — 2 1 2 1 0 0 0 0 0 0.9 3.6 QSOP24 8.65x3.9 ±2 C2
C8051F912-GM (NRND)
Buy Dev Kit
8051 25 16 0.75 16 12-bit, 15-ch., 75 ksps 4 6 — — 2 1 2 1 0 0 0 0 0 0.9 3.6 QFN24 4x4 ±2 C2
C8051F912-GU (NRND)
Dev Kit
8051 25 16 0.75 16 12-bit, 15-ch., 75 ksps 4 6 — — 2 1 2 1 0 0 0 0 0 0.9 3.6 QSOP24 8.65x3.9 ±2 C2
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      C8051F912DK Ultra Low Power MCU Development Kit

      The C8051F912DK MCU Development Kit contains everything needed to develop applications with the C8051F901, F902, F911 and F912 family of ultra low power microcontrollers.

      C8051F912DK Ultra Low Power MCU Development Kit

      The C8051F912DK MCU Development Kit contains everything needed to develop applications with the C8051F901, F902, F911 and F912 family of ultra low power microcontrollers.
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