Specifications
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1. SPECIFICATIONS
■ Model: SF-5580RS/SF-5780RS
Main Modes:
Telephone Directory, Memo, Schedule Keeper, To Do, Expense Manager, Reminder, Calendar, Home
Time, World Time, Calculator, Conversion (metric/currency) and Game (Poker/21)
Data storage:
Storage and recall of telephone, memo, schedule, to do, expense, reminder data; calendar display;
editing; memory status display
Clock:
World time; reminder alarm; schedule alarm; daily alarm; accuracy under normal temperatures: ±3
seconds average
Calculation:
12-digit arithmetic calculations; independent memory; percentages; square roots; other mixed calcu-
lations
■ General:
Display element: 26-column × 8-line LCD
Memory capacity: SF-5580RS: 128 KB
SF-5780RS: 256 KB
Main component: LSI
Power supply:
Main: Two AAA-size alkaline batteries (Type: LR03 (AM4))
Back-up: One CR2032 lithium battery
Battery life:
Main: • Approximately 130 hours of continuous display only in Telephone
Directory Mode.
• Approximately 90 hours with 55 minutes of continuous display
only and 5 minutes of processing operation per hour.
• Approximately 80 hours with 55 minutes of continuous display
only and 5 minutes of processing operation per hour, plus 3 min-
utes of backlight operation per hour during continuous display
only period.
Back-up: Approximately 5 years if main batteries are replaced as soon as
they become weak. Approximately 2 years if dead main batteries
are left in the unit.
Power consumption: 0.25 W
Current consumption:
Main (Input voltage = 3.0 V): Telephone top menu (Backlight doesn't shine)-
4.3 mA (TYP.)/5.3 mA (MAX.)
Telephone top menu (Backlight shine)-
27 mA (TYP.)/38 mA (MAX.)
OFF (Using Mask ROM: regular)-
90 µA (TYP.)/130 µA (MAX.)
OFF (Using Flash ROM: irregular)-
120 µA (TYP.)/160 µA (MAX.)
Back-up (Input voltage = 3.0 V): 2.4 µA (TYP.)/10 µA (MAX.)
Auto power off: Approximately 3 minutes after last key operation
Operating temperature: 0 °C ~ 40 °C (30 °F ~ 104 °F)
Dimensions:
Unfolded: 8.8 H × 163 W × 169 D mm (
3
/8 "H × 6
7
/16 "W × 6
5
/8 "D)
Folded: 21.5 H × 163 W × 91.5 D mm (
7
/8 "H × 6
7
/16 "W × 3
5
/8 "D)
Weight: Approximately 250 g (8.8 oz) including batteries