Device |
Features |
Supply voltage
[V]*1 |
Time keeping current
(typ)[µA]*2 |
Package |
Datasheet |
| NR8576 series |
Crystal oscillator element built-in
Serial interface |
2.5 to 5.5 |
1.0 |
SOP-14-101050-1 |
|
| SM8578B |
3-wire serial interface
Alarm and timer interrupt functions |
1.6 to 5.5 |
0.5 |
VSOP-8-031044-1 |
|
| SM8580A |
Temperature sensor built-in
4-bit parallel interface
Alarm interrupt function |
1.6 to 5.5 |
0.6 |
SSOP-24-100054-1 |
|
*1:It is specified only for clock and calendar operating voltage. Operating voltage for CPU access is specified by the other specification.
*2: It is specified for only when clock and calendar circuit operating. In this case accessing to CPU is not possible.
