| ??? 08/09/09 12:41 Read: times |
#168273 - Vdd rise time LPC935 Responding to: ???'s previous message |
Hi Kai,
Please cfm the following statement is true, as per your vice versa statement. The Vdd of the P89LPC935 should rise slower 2 mV/µs and fall slower than 50 mV/µs. I have heard that if Vdd rises too slow (eg charging up the Vdd Cap) then the micro may fail to startup. So is there a Vdd rise time "window" as well as a Vdd fall time "window"? The LPC935 data sheet only shows one parameter for Vdd_rise_time and one parameter for Vdd_fall_time? I look forward to your comments. Regs Joe |
| Topic | Author | Date |
| LPC764 Oscillator problems | 01/01/70 00:00 | |
| it is a known fact that .... | 01/01/70 00:00 | |
| Well known... | 01/01/70 00:00 | |
| See also here... | 01/01/70 00:00 | |
| one added comment | 01/01/70 00:00 | |
| LPC764 Vdd rise time | 01/01/70 00:00 | |
| Vice versa! | 01/01/70 00:00 | |
| Vdd rise time LPC935 | 01/01/70 00:00 | |
That's what the datasheet tells... | 01/01/70 00:00 |