The whole system was designed for long battery life and standby time. That’s why it didn’t have the backlight LCD, had an enormous battery (reading https://support.apple.com/kb/sp140?locale=en_GB, it only delivered 5W, tops, though), and used static RAM.
I guess this expansion used dynamic RAM with on-board refresh logic, but the page isn’t clear (to me) on that.
I guess this expansion used dynamic RAM with on-board refresh logic, but the page isn’t clear (to me) on that.