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NA555PE4

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NA555PE4
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Texas Instruments

Precision Timers 8-PDIP -40 to 105

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TIDA-01365 Bidirectional RS-485 Fan-Out Hub Reference Design | TI.com
TIDA-01365: The Bidirectional RS-485 Fan-Out Hub Reference Design (TIDA-01365) documents and tests an RS-485 fan-out hub design where 1:N and N:1 RS-485 signals are aggregated in and out of any bus topology. This design also features automatic direction control, for reduced pin count on microcontrollers, and a DC-to-DC converter using the 24V DC rail typically seen in industrial applications.
TIDA-01090 RS-485 Automatic Direction Control Reference Design | TI.com
TIDA-01090: The TIDA-01090 reference design enables half-duplex communication over an RS-485 bus without requiring additional driver-enable/receiver-enable controls. The design allows for the transceiver used on each node to go into transmit mode automatically when data is being transmitted from a local Microcontroller (MCU) or Universal Asynchronous Receiver/Transmitter (UART) and then transition back into receive mode once the data frame is complete.
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