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Highway09a Ic Datasheet [new] Review

HIGHWAY09A is a versatile 16-pin integrated circuit (IC) primarily utilized as a low-dropout voltage regulator multi-channel signal processor . Frequently manufactured by

The MAX09A is available in a small 10-pin μMAX package.

A Chinese/generic IC with a non-standard or in-house marking – Many small ICs from Alibaba/eBay have markings like HIGHWAY09A that are not official datasheet part numbers. These are often remarketed op-amps, regulators, or driver ICs.

6. Application Circuit Example

Microcontroller to Highway09A to RS-485 Bus

            +5V
             |
            ┌┴┐
            │ │ 0.1µF
            └┬┘
             |           Highway09A
    MCU Tx --|-------------|D (pin4)
    MCU Rx --|---------|R (pin1)
    MCU Dir--|--┬------|RE (pin2)
               └------|DE (pin3)
                       |GND (pin5)----- GND
                       |A (pin6) ------+--- A line to bus
                       |B (pin7) ------+--- B line to bus
                    +5V|VCC (pin8)----+5V

Termination: Add 120Ω resistor across A and B at both ends of long cable.



Automotive Electronics: Power supply for ECUs, instrument clusters, and navigation systems.

HIGHWAY09A is a versatile 16-pin integrated circuit (IC) primarily utilized as a low-dropout voltage regulator multi-channel signal processor . Frequently manufactured by

The MAX09A is available in a small 10-pin μMAX package.

A Chinese/generic IC with a non-standard or in-house marking – Many small ICs from Alibaba/eBay have markings like HIGHWAY09A that are not official datasheet part numbers. These are often remarketed op-amps, regulators, or driver ICs.

6. Application Circuit Example

Microcontroller to Highway09A to RS-485 Bus

            +5V
             |
            ┌┴┐
            │ │ 0.1µF
            └┬┘
             |           Highway09A
    MCU Tx --|-------------|D (pin4)
    MCU Rx --|---------|R (pin1)
    MCU Dir--|--┬------|RE (pin2)
               └------|DE (pin3)
                       |GND (pin5)----- GND
                       |A (pin6) ------+--- A line to bus
                       |B (pin7) ------+--- B line to bus
                    +5V|VCC (pin8)----+5V

Termination: Add 120Ω resistor across A and B at both ends of long cable.



Automotive Electronics: Power supply for ECUs, instrument clusters, and navigation systems.
highway09a ic datasheet
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