M48T212A controller equivalent, 3.3v timekeeper controller.
(Low or High) A to E1CON or E2CON (Low or High) -85 Max 15 15 ns ns Unit
Figure 6. Chip Enable Control and Bank Select Timing
EX tEXPD A tEXPD E1CON tAPD
E2CON
.
The M48T212A is a self-contained device that includes a real time clock (RTC), programmable alarms, a watchdog timer, and two external chip enable outputs which provide control of up to four (two in parallel) external low-power static RAMs. A built-i.
Image gallery
TAGS
Download (Size : 165.06KB)