MCU123 Saleae Logic clone

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MCU123 Saleae Logic clone
Mcu123 saleae logic clone.png
Status supported
Source code fx2lafw
Channels 8
Samplerate 24MHz
Samplerate (state)
Triggers none (SW-only)
Min/max voltage -0.5V — 5.25V
Threshold voltage Fixed: VIH=2.0V—5.25V, VIL=-0.5V—0.8V
Memory none
Compression none
Price range $5 - $10

The MCU123 Saleae Logic clone is a USB-based, 8-channel logic analyzer with up to 24MHz sampling rate.

It is a clone of the Saleae Logic. It's also very similar to the MCU123 USBee AX Pro clone minus the different USB vendor/device IDs.

In sigrok, we use the open-source fx2lafw firmware for this logic analyzer.

See MCU123 Saleae Logic clone/Info for more detailed information on the device.


  • Main chip: Cypress CY7C68013-56PVC (FX2)
  • Input buffer: NXP 74HC245 (markings: "NXP HC245 2A7K508 UnD2 18E")
  • 256-byte I2C EEPROM: Atmel AT24C02 (markings: "ATMEL211 24C02N SU27 D")
  • 3.3V low-dropout voltage regulator: Advanced Monolithic Systems AMS1117-3.3 (markings: "AMS1117 3.3 HT240E")
  • 24MHz crystal: 24.000



Since we use the open-source fx2lafw firmware for this device, we don't need to know the protocol.