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SPECIFICATIONS
Main modes: Telephone Directory, Business Card Library, Memo, Schedule Keeper,
Expense, Reminder, Calendar, Home Time, World Time and Calculator
Data storage: Storage and recall of telephone, business card, memo, schedule, expense,
reminder data, calendar display, secret area; 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; arithemetic constants (+, –, ×, ÷); independ-
ent memory; percentages; square roots; 24-digit approximations; date calcula-
tions; other mixed calculations
General:
Display element: 16-column × 8-line LCD
Memory capacity: SF-7900E: 128KB (103436 bytes)
SF-8900: 256KB (234508 bytes)
Main component: LSI
Power supply: 3 lithium batteries (CR2032)
Power consumption: 0.07 W
Battery life*: Approximately 170 hours continuous operation in Telephone Directory;
approximately 130 hours repeating one minute of input and 10 minutes of
display in Telephone Directory; approximately 12 months for memory back
up
* The batteries that come installed in this unit when you purchase it are for
factory test purposes, so they will probably not provide normal service life.
Auto power off: Approximately 6 minutes after last key operation
Operating temperature: 0°C ~ 40°C (32°F ~ 104°F)
Dimensions:
Unfolded: 9.55H × 144W × 155D mm (
3
/
8
"H × 5
11
/
16
"W × 6
1
/
8
"D)
Folded: 15.95H × 144W × 77.5D mm(
5
/
8
"H × 5
11
/
16
"W × 3
1
/
16
"D)
Weight: 123g (4.3 oz.)
• Design and specifications are subject to change without notice.
Current consumption:
Power switch TYP. [µA] MAX [µA]
OFF 11.7 37.1
ON 1,670.0 13,711.0
ON (Operating) 4,520.0 16,645.0
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