| ??? 12/08/05 21:14 Read: times Msg Score: +1 +1 Good Answer/Helpful |
#104909 - LPC932 is not reliable component |
I have some flash corruption problem with LPC932. It is not just flash scrambling sometimes chips are damaged. I sent chips into PHILIPS.
The PHILIPS support keep talking how chips (what I sent) are good. I found old thread from AUG 05. It seems it is not finished. Yes I'm using IAP/ISP and no extern RST. What to do if Voltage Supervisor doesn't work under some voltage threshold. I found the following explanation from one of supervisors manufacturer: "Ensuring A Valid Reset Output Down To VCC = 0 When VCC falls below chip working voltage, (active low) RESET output no longer sinks current; it becomes an open circuit. In this case, high-impedance CMOS logic inputs connecting to (active low) RESET can drift to undetermined voltages. In applications where (active low) RESET must be valid down to 0V, adding a pull-down resistor to (active low) RESET cause any leakage currents to flow to ground, holding (active low) RESET low." Thanks, g |
| Topic | Author | Date |
| LPC932 is not reliable component | 01/01/70 00:00 | |
| here address | 01/01/70 00:00 | |
| they are perfectly reliable | 01/01/70 00:00 | |
| huh they change data sheet again? | 01/01/70 00:00 | |
| LPC932 works | 01/01/70 00:00 | |
| may that never be! | 01/01/70 00:00 | |
SiLabs | 01/01/70 00:00 |