| Features |
DS12887 RTC : 100-year calendar; sec, min, hr,
day, date, month, year
(leap year correction) |
| Over
10 years operation without power |
| Three
programmable interrupt alarms: time of day; periodic; end of
update cycle |
| Write
protection circuitry |
| 12 or
24hr clock: am/pm 12hr mode |
| Site
for optional 3.7V, 0.37Ah Lithium Thionylchloride battery |
| High
Stability
variant has temperature compensated oscillator circuit, TCXO,
maintained by lead acid battery (e.g. 6V, 3.5Ah): 10mA battery
drain current; 80mA battery charge current |
| Module
access LED |
| |
| Specification |
| IRQ
3,4,5,6,7 |
| IEEE
996
bus interface 8-bit PC/104 |
| Base
address range: 0 to 3FC hex |
| I/O
space required: 4 bytes |
| AIM104-RTC |
| Real-Time
Clock DS12887 |
| Quartz
crystal Stability: 1 min @ 25°C; 2min @ -10C; 3min @ +65°C |
| Power
consumption: 80mA @ 5V |
| Operating
temperature: -10 to +70°C |
| MTBF:
1,500,000hrs (no battery) |
| AIM104-RTC-HS
(High Stability) |
| Real-Time
Clock DS12885 |
| Quartz
crystal: 30secs per year accuracy, over -10 to +50°C |
| Power
consumption: 220mA @ 5V (with battery) |
| Storage
temperature: -40 to +70°C |
| MTBF:
860,000hrs |
| Software
Support: FREE Integrated I/O 'C' Library on disk |
