The maximum operating frequency of the SN75C189ADBR is 100 MHz, but it can be operated at higher frequencies with reduced voltage swing and increased power consumption.
To ensure reliable operation in high-temperature environments, it is recommended to follow proper thermal design and layout guidelines, such as providing adequate heat sinking and airflow, and using thermal interface materials to reduce thermal resistance.
The recommended termination scheme for the SN75C189ADBR is a series termination with a 50-ohm resistor and a 100-nF capacitor to ground, which helps to reduce reflections and improve signal integrity.
Yes, the SN75C189ADBR can be used in a differential signaling application, but it requires an external differential amplifier or receiver to convert the single-ended output to a differential signal.
To handle EMI and EMC issues with the SN75C189ADBR, it is recommended to follow proper PCB design and layout guidelines, such as using shielding, grounding, and filtering, and to use EMI-absorbing materials and components.
SN75C189ADBR datasheet
by Texas Instruments
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