MAX7368EUE+

Analog Switches - Special Purpose Overview

The MAX7368EUE+ is a bidirectional, four-channel I2C switch manufactured by Analog Devices Inc./Maxim Integrated. It expands the main I2C bus onto four extended buses within a 16-pin TSSOP package. The device operates over an extended temperature range of -40°C to +85°C and supports a supply voltage (VDD) from 2.3V to 5.5V. It features low on-resistance of 16Ω typical at 3.3V and 12Ω typical at 5V. Supply current is 6µA typical, with standby current at 0.1µA typical. The SCL clock frequency supports up to 400kHz.

Analog Switches - Special Purpose Feature Summary

• Four-channel bidirectional expansion isolates bus loading and allows multiple devices with identical addresses to communicate simultaneously.
• Hardware reset input enables external circuitry to force the internal register and I2C state machine back to their default states.
• Supports hot insertion and transparent signal transmission compatible with I2C clock stretching, synchronization, and arbitration protocols.

Analog Switches - Special Purpose Applications

• Servers
• RAID systems
• Cellular phones
• Base stations
• SAN/NAS storage

Analog Switches - Special Purpose Procurement Notes

Verify the component against official Maxim Integrated datasheets to confirm pinout compatibility and electrical specifications. Ensure the ordering suffix matches the required package type and temperature rating. Cross-reference part numbers with authorized distributors to validate authenticity and traceability before finalizing procurement.

Analog Switches - Special Purpose Selection Notes

Select this component when expanding I2C bus capacity beyond standard limits or when connecting multiple slave devices sharing the same address. Verify that the system's pull-up resistor values accommodate the specified rise times for both 100kHz and 400kHz modes. Confirm that the supply voltage range aligns with the target application's power rails.

Analog Switches - Special Purpose Part Context

This device belongs to the MAX7367/MAX7368/MAX7369 family of I2C switches and multiplexers. While the MAX7369 functions as a 1:4 multiplexer and the MAX7367 offers interrupt capabilities in a 20-pin package, the MAX7368 provides four independent switches in a compact 16-pin TSSOP form factor without interrupt inputs.

Analog Switches - Special Purpose Replacement Considerations

MAX7367EUP+ (20-pin variant with interrupts)

Analog Switches - Special Purpose FAQ

Does the MAX7368 support interrupt signaling?

No, the MAX7368 does not include interrupt inputs or outputs. Only the MAX7367 and MAX7369 variants feature interrupt logic.

How is channel selection managed?

Channels are selected by writing to the internal control register via the main I2C bus. Up to all four channels can be enabled simultaneously.

What is the function of the RESET pin?

The active-low RESET input allows external circuitry to set the device to its default state anytime after power-up, recovering from bus faults.