MAX3452EETE+T

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The MAX3452EETE+T is a versatile four-channel, low-voltage digital logic-level shifter and translator. This device is ideal for use in low-voltage applications and is designed to provide full compatibility with high-speed, low-voltage logic standards. The MAX3452EETE+T can be used to translate and level-shift between high-performance voltages as low as 3 V, while being immune to noise on the opposite rail. It can also be used to level-shift between two different high-speed logic families, such as open drain, bus-hold, or push-pull.

The MAX3452EETE+T has a wide range of applications and can be used to interoperate between different logic voltages, logic families, and levels to create mixed voltage systems. It is also ideal for interconnecting communication, control, and power-supply systems. Specifically, the MAX3452EETE+T is suitable for applications involving I/O ports, memory expansion buses, power-supply shifting, step-up converters, low-noise switching, and level-shifting between open drain and push-pull buses.

The MAX3452EETE+T is composed of four channels that are individually configurable. Each channel includes two input ports, two output ports, two gate pins, and two enable pins. Each channel can be configured to shift between low-voltage logic levels (3V), medium-voltage logic levels (5V) and high-voltage logic levels (15V). Each channel is operated by enabling one of the gate pins and applying a logic signal at the corresponding enable pin.

The MAX3452EETE+T operates in two different modes: low-to-high and high-to-low. In low-to-high mode, the input voltage range is limited to 3V and the output voltage range to 0V to 15V. The device uses an internal charge-pump circuit to drive 15V from the 3V supply, and each channel includes a TTL-level translator for logic voltage shifting. The TTL-level translator consists of a series of resistors and capacitors that create an internal bias voltage. The internal bias voltage is translated to the output voltage level so that the output follows the input logic level.

In high-to-low mode, the input voltage range is limited to 15V and the output voltage range to 0V to 3V. The device uses an internal DC-DC converter to drive 3V from the 15V supply, and each channel includes a MOSFET switch for level-shifting between open drain and push-pull buses. The MOSFET switch is connected between the output and a reference voltage, and switches either the reference voltage or the output voltage to the load depending on the input logic level.

The MAX3452EETE+T is an efficient and reliable device for low-voltage logic level shifting and protocol conversion. It is ideal for applications that require a high degree of compatibility with other logic families, and can be used to shift between two different voltage levels and between low-voltage and high-voltage logic levels. The device provides excellent noise immunity and low power consumption, making it an ideal choice for many interfacing applications.

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