Reply by boB August 19, 20202020-08-19
On Wed, 19 Aug 2020 02:25:45 -0400, bitrex <user@example.net> wrote:

>On 8/19/2020 1:01 AM, Ricketty C wrote: >> On Wednesday, August 19, 2020 at 12:57:10 AM UTC-4, bitrex wrote: >>> There was the CMOS cookbook, now there's the GreenPAK cookbook: >>> >>> <https://www.dialog-semiconductor.com/sites/default/files/the_greenpak_cookbook_3q2020_final.pdf> >>> >>> An interesting feature is mentioned at the start of chapter 5. To >>> maintain a given mixed-signal array configuration after power-loss the >>> devices are the equivalent of OTP and will boot into that state. But if >>> the particular device has I2C you can create a table of differences >>> between configurations. >>> >>> Once powered-up the device can also be reconfigured over I2C. It would >>> seem that if you have a uP with I2C also you can store that table in the >>> uP memory and actually re-write the array hardware configuration on the fly >> >> When I looked at the parts they really didn't have much capability. I think they are pretty cheap in quantity, so if they do what you want and you need to build a lot of units, these can be very useful parts. Just not on anything I've done lately. >> > >Big-thing ASICs they are not, their strength is glue-logic and external >dependency reduction, particularly with the analog comparators.
I am using two each of those in my product. An inverter/charger. It's the perfect part and small size for what I needed ! Just for glue logic but is much better than what I would need to use. It also runs on up to 5V so perfect for interface to my 3.3V proessor.
Reply by bitrex August 19, 20202020-08-19
On 8/19/2020 1:01 AM, Ricketty C wrote:
> On Wednesday, August 19, 2020 at 12:57:10 AM UTC-4, bitrex wrote: >> There was the CMOS cookbook, now there's the GreenPAK cookbook: >> >> <https://www.dialog-semiconductor.com/sites/default/files/the_greenpak_cookbook_3q2020_final.pdf> >> >> An interesting feature is mentioned at the start of chapter 5. To >> maintain a given mixed-signal array configuration after power-loss the >> devices are the equivalent of OTP and will boot into that state. But if >> the particular device has I2C you can create a table of differences >> between configurations. >> >> Once powered-up the device can also be reconfigured over I2C. It would >> seem that if you have a uP with I2C also you can store that table in the >> uP memory and actually re-write the array hardware configuration on the fly > > When I looked at the parts they really didn't have much capability. I think they are pretty cheap in quantity, so if they do what you want and you need to build a lot of units, these can be very useful parts. Just not on anything I've done lately. >
Big-thing ASICs they are not, their strength is glue-logic and external dependency reduction, particularly with the analog comparators.
Reply by Ricketty C August 19, 20202020-08-19
On Wednesday, August 19, 2020 at 12:57:10 AM UTC-4, bitrex wrote:
> There was the CMOS cookbook, now there's the GreenPAK cookbook: > > <https://www.dialog-semiconductor.com/sites/default/files/the_greenpak_cookbook_3q2020_final.pdf> > > An interesting feature is mentioned at the start of chapter 5. To > maintain a given mixed-signal array configuration after power-loss the > devices are the equivalent of OTP and will boot into that state. But if > the particular device has I2C you can create a table of differences > between configurations. > > Once powered-up the device can also be reconfigured over I2C. It would > seem that if you have a uP with I2C also you can store that table in the > uP memory and actually re-write the array hardware configuration on the fly
When I looked at the parts they really didn't have much capability. I think they are pretty cheap in quantity, so if they do what you want and you need to build a lot of units, these can be very useful parts. Just not on anything I've done lately. -- Rick C. - Get 1,000 miles of free Supercharging - Tesla referral code - https://ts.la/richard11209
Reply by bitrex August 19, 20202020-08-19
There was the CMOS cookbook, now there's the GreenPAK cookbook:

<https://www.dialog-semiconductor.com/sites/default/files/the_greenpak_cookbook_3q2020_final.pdf>

An interesting feature is mentioned at the start of chapter 5. To 
maintain a given mixed-signal array configuration after power-loss the 
devices are the equivalent of OTP and will boot into that state. But if 
the particular device has I2C you can create a table of differences 
between configurations.

Once powered-up the device can also be reconfigured over I2C. It would 
seem that if you have a uP with I2C also you can store that table in the 
uP memory and actually re-write the array hardware configuration on the fly