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ELM627 - RS232 Break Detector

General Description

The ELM627 is a complete circuit for detecting break signals on RS232 lines, in an 8 pin package.

This is useful for remotely resetting circuits through a serial link.

For convenience, this circuit also generates an output pulse on power-up.

Key Features

  • Low power CMOS design - typically 1mA at 5V.
  • No external timing elements required.
  • Complementary outputs.
  • Digitally controlled threshold timing.
  • Selectable output duration.
  • High current drive outputs - up to 25 mA Connection Diagram PDIP and SOIC (top view) VDD 1 Q2 Q3 P/C 4 8 VSS 7 T0 6 T1 5 TxD Block Diagram TxD 5 Programmable Timer 6 7 T1 T0 Power on Detect Output Logic 4 P/C ELM627DSA Elm Electronics.
  • Circuits for the.

📥 Download Datasheet

Datasheet Details

Part number ELM627
Manufacturer ELM Electronics
File Size 19.51 KB
Description RS232 Break Detector
Datasheet download datasheet ELM627 Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ELM627 RS232 Break Detector Description The ELM627 is a complete circuit for detecting break signals on RS232 lines, in an 8 pin package. This is useful for remotely resetting circuits through a serial link. For convenience, this circuit also generates an output pulse on power-up. The timing threshold for break signal detection is user selectable, allowing the circuit to respond to transmitted null characters, @, at various baud rates. This provides a convenient means for the remote triggering of this circuit by simply shifting to a lower baud rate and sending a null byte. Two complementary high current outputs are provided by the ELM627, so that further buffering is not usually required.