over recommended operating free-air temperature range (unless otherwise noted) PARAMETER(1) | TEST CONDITIONS | MIN | TYP | MAX | UNIT |
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t(τ) | USART0 deglitch time | VCC = 2.2 V, SYNC = 0, UART mode | 200 | 430 | 800 | ns |
VCC = 3 V, SYNC = 0, UART mode | 150 | 280 | 500 |
(1) The signal applied to the USART0 receive signal/terminal (URXD0) should meet the timing requirements of t(τ) to ensure that the URXS flip-flop is set. The URXS flip-flop is set with negative pulses meeting the minimum timing condition of t(τ). The operating conditions to set the flag must be met independently from this timing constraint. The deglitch circuitry is active only on negative transitions on the URXD0 line.