Making a wish list of all the 3.3volt chips that one "must have" for use w/ the Prop
LoopyByteloose
Posts: 12,537
I spent Christmas interfacing a 5VDC ADC8034 to a Propeller Mini and wondering why I hadn't finally accepted collecting 3.3VDC devices instead, preferably those in DIP packages.
And so, I was pondering today on how to get started with making a shopping list. I will have to import all these to Taiwan as the over-the-counter electronics parts houses here are still refusing to buy a lot of 3.3v devices.
For starters, I want some ...
MCP3208 ===>ADC chips with 12 bit resolution/ DIP.
ULN2803 ===> 8x Darlington driver chips/ DIP
I'd love to know about all and everything... even 3.3VDC LCD displays that use SPI or I2C to interface.
Other stuff is
RS232 level shifters
RS422/485 trancieters
DAC
i/o extenders
Serial to Parallel Shift registers
Paralle to Serial Shift registers
And so, I was pondering today on how to get started with making a shopping list. I will have to import all these to Taiwan as the over-the-counter electronics parts houses here are still refusing to buy a lot of 3.3v devices.
For starters, I want some ...
MCP3208 ===>ADC chips with 12 bit resolution/ DIP.
ULN2803 ===> 8x Darlington driver chips/ DIP
I'd love to know about all and everything... even 3.3VDC LCD displays that use SPI or I2C to interface.
Other stuff is
RS232 level shifters
RS422/485 trancieters
DAC
i/o extenders
Serial to Parallel Shift registers
Paralle to Serial Shift registers
Comments
All the 74HC range - can run at 3.3V or 5V (eg shift registers)
One trick with the MCP23017 is you can connect it to the 3V3 i2c bus on the propeller, but run the chip from 5V, so that gives you 16 5V i/o pins that can then interface to all your existing 5V chips. That may apply to other i2c chips as well.