35.19 UPDI
| Symbol | Description | Min. | Max. | Unit | Conditions | 
|---|---|---|---|---|---|
| tRES * | Duration of Handshake/Break on RESET | 10 | 200 | µs | |
| tUPDI * | Duration of UPDI.txd = 0 | 10 | 200 | µs | |
| tDeb0 * | Duration of Debugger.txd = 0 | 0.2 | 1 | µs | |
| tDebZ * | Duration of Debugger.txd = z | 200 | 14000 | µs | |
| fUPDI * | UPDI clock frequency | — | 4 | MHz | 
               1.8V ≤ VDD ≤ 5.5V TA < 0ºC or TA > +50ºC  | 
| — | 8 | 
               1.8V ≤ VDD ≤ 5.5V 0ºC ≤ TA ≤ +50ºC  | |||
| — | 8 | 
               2.7V ≤ VDD ≤ 5.5V TA < 0ºC or TA > +50ºC  | |||
| — | 16 | 
               2.7V ≤ VDD ≤ 5.5V 0ºC ≤ TA ≤ +50ºC  | |||
| — | 16 | 
               4.5V ≤ VDD ≤ 5.5V TA < 0ºC or TA > +50ºC  | |||
| — | 32 | 
               4.5V ≤ VDD ≤ 5.5V 0ºC ≤ TA ≤ +50ºC  | |||
| 
               * These parameters are characterized but not tested in production.  | |||||
