Sharp OZ-640, OZ-630, OZ-650 operation manual Specifications, Electronic unit section

C. Specifications

Model	OZ-630/OZ-640/OZ-650
Display	239 x 80 dot matrix liquid crystal
	display plus LCD flag
Electronic unit section
Applications	Calendar, Schedule, To Do, Anniversary,
	Telephone, User File, Memo, Expense,
	Expense Report, Clock, Calculation,
	Conversion.
Memory capacity	OZ-630: 256KB

(User area: Approx. 210Kbytes) OZ-640: 512KB

(User area: Approx. 464Kbytes) OZ-650: 1MB

(User area: Approx. 971Kbytes) Schedule application capacity: Approx. 2860 entries (OZ-630) / 6560 entries (OZ-640) / 13980 entries (OZ- 650)

Tel application capacity: Approx. 2780 entries (OZ-630) / 6390 entries (OZ- 640) / 13590 entries (OZ-650)

These capacities assume the following average entry sizes and only apply when all the available memory is committed.

	Schedule:	32 characters/entry
	Tel:	16 characters/entry in the
		name field
		12 characters/entry in the
		number field
Maximum data size	Approx. 2000 bytes
per entry
User interfaces	Keyboard
Other features	Secret function, data transfer, search
	function, help function, et al.
Calculator digits	12
Functions	Addition, subtraction, multiplication,
	division,	constant, square root,
	percent, memory calculation, cost/sell/
	margin calculation, cost/sell/markup
	calculation, conversion calculation.
Clock
Crystal oscillation frequency 32,768 Hz
Accuracy	Average variance per day, 1.5 seconds
	(at 25°C/77°F)
Display information	Year, month, day, day of the week,
	hours, minutes, AM/PM, city names.
Time system	12-hour or 24-hour

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