Casio SF-5580, Service Manual

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2. SPECIFICATIONS

Model:

SF-5580E/SF-5780E/SF-5980E

Main Modes:
Telephone Directory, Memo, Schedule Keeper, To Do, Expense Manager, Reminder, Calendar, Home
Time, World Time, Calculator, Conversion (metric/currency) and Game (Poker/Blackjack)

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; arithmetic constants (+, –, 

×

, 

÷

); independent memory; percentages;

square roots; other mixed calculations

General:

Display element:

26-column 

×

 8-line LCD

Memory capacity:

SF-5580E: 128 KB
SF-5780E: 256 KB
SF-5980E: 512 KB

Main component:

LSI

Power supply:

Main:

Two AAA-size batteries (Type: LR03 (AM4))

Back-up:

One CR2032 lithium battery

Battery life:

Main:

In Telephone Mode, approximately 100 hours continuous display;
approximately 70 hours with 5 minutes operation and 55 minutes
continuous display per hour; approximately 60 hours with 5 min-
utes operation and 52 minutes continuous display, and 3 minutes
backlight operation per hour

Back-up:

5 years if main batteries are replaced as soon as they become
weak. 6 months 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 (Light from EL doesn't shine)-
3.9 mA (TYP.)/4.8 mA (MAX.)
Telephone top menu (Light from EL shines)-
27 mA (TYP.)/38 mA (MAX.)
OFF- 90 

µ

A (TYP.)/120 

µ

A (MAX.)

Back-up (Input voltage = 3.0 V): 18 

µ

A (TYP.)/40 

µ

A (MAX.)

Auto power off:

Approximately 3 minutes after last key operation

Operating temperature:

0 

°

C ~ 40 

°

C (30 

°

F ~ 104 

°

F)

Dimensions:

Unfolded:

8.8H 

×

 163W 

×

 169D mm (

3

/

8

"H 

×

 6

7

/

16

"W 

×

 6

5

/

8

"D)

Folded:

21.5H 

×

 163W 

×

 91.5D mm (

7

/

8

"H 

×

 6

7

/

16

"W 

×

 3

5

/

8

"D)

Weight:

251 g (8.9 oz) including batteries