SY10EPT28LKI-TR

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Logic - Translators, Level Shifters

The SY10EPT28LKI-TR device is a 5 V Input, 3.3 V, 28-Pin Low-Voltage Translating Buffer Logic family from Texas Instruments. It has a 25 mA to 69 mA output drive, with a propagation delay of 18 ns from 3.3 V to 5 V. It is used to quickly move a digital control signal from a higher voltage to a lower level for simple level shifting needs.

The SY10EPT28LKI-TR device contains eight 2-channel translators. Each translator is designed to perform a controlled transition between the lower-voltage side and the higher-voltage side. It works by sensing the voltage on the input side and, if the voltage is higher than the specified threshold voltage, switching the output to the corresponding voltage level on the lower-voltage side. It will operate at a speed that is dependent on the transition between the input and the output logic levels.

The typical applications for this low-voltage translator include LCD control, audio data capture and communication. It is also used for digital logic level shifting, such as for voltage level shifting for use in RS-232 (Serial Peripheral Interface) systems. Additionally, the SY10EPT28LKI-TR works well for high-speed I/O port expansion from 3.3 V to 5 V. The low operating power consumption and fast switching speed also make it a useful device for other applications, such as for circuits with sensitive thresholds or high speed requirements.

The SY10EPT28LKI-TR device’s architecture consists of two parts: a control block and the actual buffer. The control block, or the “Input Translators”, are the driving force behind the device. They detect any transition on the input voltage and, based on the logic of the input logic levels and their settings, the input can be set to the corresponding output logic level. The output stage, or “Output Buffers” are the logic gate that passes the corresponding output logic levels to the output pins.

The SY10EPT28LKI-TR’s low standby power consumption means that it consumes minimal energy at idle, thereby reducing the size and cost of a power supply. Additionally, due to its low “on-die” capacitance, this device can be used in high-speed logic applications, making it suitable for applications where low-noise signals and fast switching is required. This device features internal “Input Debounce Filter” and “Output Playback Filter”, adding to its versatility in both high and low speed logic applications.

To sum up, the SY10EPT28LKI-TR device is an integrated, 5 V Input, 3.3 V, 28-Pin Low-Voltage Translating Buffer Logic family from Texas Instruments. It is used for level shifting from higher voltage to a lower voltage, such as from 3.3 V to 5 V. Additionally, it is useful for logic level shifting for use in RS-232 systems and for high speed I/O port expansion. The low power consumption and fast switching speed make it ideal for logic applications requiring low noise signals, low standby power consumption and high speeds.

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