SN74LVC1T45DCKR single-bit dual-supply bus transceiver with configurable voltage translation and 3-state outputs uses two separate configurable power-supply rails. The A port is designed to track Vcca. Vcca accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track Vccb. Vccb accepts any supply voltage from 1.65 V to 5.5 V.

The SN74LVC1T45DCKR chip marked by TA* silkscreen can be used in the hash board of Antminer and Whatsminer.

This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. The SN74LVC1T45 is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction control (DIR) input. The input circuitry is always active on both A and B ports and must have a logic HIGH or LOW level applied to prevent excess Icc and Iccz.

Specification:

Marking: TA_

Category: SN74LVC1T45

Supply voltage range: −0.5 V to 6.5 V

Input voltage range: −0.5 V to 6.5 V

Input/ Output clamp current: −50 mA

Continuous output current: ±50 mA

Storage temperature range: −65°C to 150°C

Operating temperature: −40°C to 85°C

Package: SOT (SC-70) − DCK

Applications:

Personal electronic, industrial, enterprise, telecom, etc.