DS1216 chips (the DIP16) version are all over the place and seem to be readily available. I was looking at this, and wondering why nobody has made a quick PCB adapter for it (DIP28 socket on top, and pins on bottom) so we can adapt to a DS1216E.
Looking at the pinouts on the DIP16, and how they relate to the DIP28, I'm still missing some information (I don't have a unit to do this testing on, so have been going by the reference on this page and Maxim's data sheet https://pdfserv.maximintegrated.com/en/ds/DS1216-DS1216H.pdf.
So, five unknowns and these to potentially pick from on the DIP28:
Pin 26: VccB
Pin 27: WE* (but that looked already used?)
Anyone want to help contribute and correct? I'm in a bit of a brain fog, so I really need some help to double check these, especially if you have one of these and can meter out the pins.
Thanks!
Looking at the pinouts on the DIP16, and how they relate to the DIP28, I'm still missing some information (I don't have a unit to do this testing on, so have been going by the reference on this page and Maxim's data sheet https://pdfserv.maximintegrated.com/en/ds/DS1216-DS1216H.pdf.
Code:
DS1216 PIN/DESC DIP28 PIN/DESC
1 X1 UNKNOWN, goes to pad
2 X2 UNKNOWN, goes to pad
3 WE* PIN 8, WE*
4 BAT1 n/c - goes to +3V battery
5 GND PIN 14, GND
6 D PIN 10, A0
7 Q PIN 11, DQ0
8 GND PIN 14, GND
9 ROM/RAM* UNKNOWN, goes to pad
10 CE0* PIN 20, CE0*
11 CE1* UNKNOWN, goes to pad
12 OE* PIN 22, OE*
13 RST* PIN 1, RST*
14 BAT2 n/c - goes to +3V battery
15 Vcc0 UNKNOWN, goes to pad
16 Vcc1 PIN 28, VCC
So, five unknowns and these to potentially pick from on the DIP28:
Pin 26: VccB
Pin 27: WE* (but that looked already used?)
Anyone want to help contribute and correct? I'm in a bit of a brain fog, so I really need some help to double check these, especially if you have one of these and can meter out the pins.
Thanks!