The introduction of Whatsminer M20S hash board chip types

Whatsminer M20S is an ASIC miner using the SHA-256 algorithm, it can mine Bitcoin or Bitcoin Cash at a hash rate of 68TH/s (+-5%), and its power consumption is 3300w (+-10%). It has three hash boards, so do you know what chips are on the M20S hash board? Let us consolidate it through this article.


Chip silkscreen: KF1921

Chip name: WhatsMiner KF1921 Chip

A single Whatsminer M20S hash board consists of 105 KF1921 chips, which are responsible for the hash rate calculation of Whatsminer M20S miners.

KF1921 ASIC chip

Chip location: UP39

Chip silkscreen: 2057S

Chip name: RS2057XC6

The RS2057XC6 is a single-pole, double-throw (SPDT) analog switch in a tiny SOT363 (SC70-6) package designed to operate over a voltage range of 1.8 V to 5.5 V and an operating temperature range of -40°C to +125°C. The device can handle both analog and digital signals. In addition, it features high bandwidth (300MHz) and low on-resistance (4.5Ω TYP).

 RS2057XC6 chip

Chip location: UP37

Chip silkscreen: ATHYC839

Chip name: AT24C02N-10SU-2.7

AT24C02N-10SU-2.7 is a serial electrically erasable programmable read-only memory (EEPROM) that provides 2048 bits, the operating temperature range is between –40°C to 85°C, and the chip has a built-in bidirectional data transfer protocol, Schmitt Trigger, filtered input for noise suppression. High reliability, long data retention time, and up to 1 million write cycles.

AT24C02N EEPROM chip

Chip location: UP38

Chip silkscreen: 37501638

Chip name: SGM3750

The SGM3750 is a series-driven LED boost converter with a 40V-rated integrated switching FET. The SGM3750 is available in green TDFN-2×2-6L package. It has an ambient temperature range of -40°C to +85°C and an input voltage range of 2.7V to 20V. In PWM mode, the SGM3750 does not burst the LED current; therefore, it does not generate audible noise on the output capacitor. In addition, the device features integrated open LED protection to prevent the output voltage from exceeding the IC's absolute maximum voltage rating during an open LED condition for maximum protection.

SGM3750 LED boost converter chip

Chip location: UP32

Chip silkscreen: DC=E2H

Chip name: RT9193-18GB

RT9193-18GB is a 220mV, 300mA, 1.8V output voltage low dropout voltage regulator, using SOT-23-5 package, wide operating voltage range between 2.5V to 5.5V, built-in current limiting protection, thermal shutdown Disconnect protection, etc. for ultra-low noise RF applications with ultra-fast response to line/load transients.

RT9193-18GB low dropout voltage regulator chip

Chip silkscreen: 2A

Chip name: MMBT3906

The MMBT3906 is a 220mV, -200mA MOS chip in a SOT-23 package, with an operating crystallization temperature between -55°C and +150°C.

Whatsminer M20S hash board chip summary.

hash board chip summary

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