ZHCSNJ8A April 2021 – September 2023 TDES960
PRODUCTION DATA
The power-up sequence for the TDES960 is as follows:
| PARAMETER | MIN | TYP | MAX | UNIT | NOTES | |
|---|---|---|---|---|---|---|
| tr0 | VDD18 / VDDIO rise time | 0.2 | ms | @10/90% | ||
| tr1 | VDD11 rise time | 0.05 | ms | @10/90% | ||
| t0 | VDD18 / VDDIO to VDD11 delay | 0 | ms | |||
| t1 | VDDx to REFCLK delay | 0 | ms | Keep REFCLK low until all supplies are up and stable.(1) | ||
| t2 | VDDx to PDB delay | 0 | ms | Release PDB after all supplies are up and stable. | ||
| t3 | PDB to I2C ready (IDX and MODE valid) delay | 2 | ms | |||
| t4 | PDB pulse width | 2 | ms | Hard reset (optional) | ||
| t5 | PDB to GPIO delay | 0 | ms | Keep GPIOs low or high until PDB is high. | ||
REFCLK can start before VDD power supplies are applied.
Figure 8-18 Power-Up Sequencing