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Dlloydev / jtag2updi

HV UPDI / UPDI programmer software for Arduino (targets Tiny AVR-0/1/2, Mega AVR-0 and AVR-DA/DB MCUs)
MIT License
27 stars 8 forks source link

ST662ACD charge pump is now obsolete #7

Closed Dlloydev closed 4 years ago

Dlloydev commented 4 years ago

Received Part Life Notification from Digi-Key for the ST662ACD charge pump. Unfortunately, it has been marked with Obsolete status and is now non-stock. Since now there's no low cost directly compatible solution, this puts higher priority on the 4-pin built-in charge pump solution.

Since there are enough pins available on the 14-pin ATtiny, I'll be adding back the built-in charge pump as follows:

On the 20 and 24-pin parts, CPS (charge pump shutdown) will moved from PB4 to PB1. On the 14-pin part, CPS will be on pin PB1, CP1 added to PA4 and CP2 added to PA5.

In summary, for all ATtiny parts, we will have:

Pin Charge Pump pin name
PA3 CPP / HV Enable
PA4 CP1 charge pump
PA5 CP2 charge pump
PB1 CPS charge pump
Dlloydev commented 4 years ago

Update completed.

ssarna1 commented 1 year ago

FYI: MAX662ACSA is a direct and non-obsolete replacement.