over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted)PARAMETER | TEST CONDITIONS | VCC | MIN | TYP | MAX | UNIT |
---|
tt | UART receive deglitch time(1) | UCGLITx = 0 | 2.2 V, 3 V | 8 | 15 | 20 | ns |
UCGLITx = 1 | 30 | 50 | 60 |
UCGLITx = 2 | 50 | 70 | 100 |
UCGLITx = 3 | 70 | 100 | 150 |
(1) Pulses on the UART receive input (UCxRX) shorter than the UART receive deglitch time are suppressed. To ensure that pulses are correctly recognized their width should exceed the maximum specification of the deglitch time.