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General Description
The SUM2102 is a high-performance configurable dual-voltage-supply translator for bi-directional voltage translation over a wide range of input and output voltages levels. The SUM2102 also works in a push-pull environment.
It is intended for use as a voltage translator between I2C-Bus compliant masters and slaves. Internal 10KΩ pull-up resistors are provided.
The device is designed so the A port tracks the VCCA level and the B port tracks the VCCB level. This allows for bi-directional A/B-port voltage translation between any two levels from 1.65V to 5.5V. VCCA can equal VCCB from1.65V to 5.5V. Either VCC can be powered-up first. Internal power-down control circuits place the device in 3-state if either VCC is removed.
The two ports of the device have automatic direction-sense capability. Either port may sense an input signal and transfer it as an output signal to the other port.

FEATURES

● Bi-Directional Interface between Any Two Levels:1.65V to 5.5V
● No Direction Control Needed
● Internal 10K Pull-Up Resistors
● System GPIO Resources Not Required when OE tied to VCCA
● I2C-Bus Isolation
● A/B Port VOL = 175mV (Typical), VIL = 150mV, IOL = 6mA
● Open-Drain Inputs / Outputs
● Works in Push Pull Environment
● Accommodates Standard-Mode and Fast-Mode I2C-Bus Devices
● Supports I2C Clock Stretching & Multi-Master
● Fully Configurable: Inputs and Outputs Track VCC
● Non-Preferential Power-Up; Either VCC Can Power-Up First
● Outputs Switch to 3-State if Either VCC is at GND
● Tolerant Output Enable: 5V
● Package:UQFN1.2*1.4-8 ，SOT23-8
● ESD Protection Exceeds:
- B Port: 8kV HBM ESD (vs. GND & vs. VCCB)
- All Pins: 4kV HBM ESD (per JESD22-A114)
- 2kV CDM (per JESD22-C101)

http://www.sumsemi.com/

Features