Sharp Z&650, ZQ-640, ZQ-630 operation manual Specifications

C. Specifications

Model	ZQ-630/ZQ-640lZQ-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	ZQ-630: 256KB
	(User area: Approx. 21 OKbytes)
	ZQ-640: 512KB
	(User area: Approx. 464Kbytes)
	ZQ-650: 1 MB
	(User area: Approx. 971 Kbytes)
	Schedule application capacity:
	Approx. 2860 entries (ZQ-630) / 6560
	entries (ZQ-640) / 13980 entries (ZQ-
	650)
	Tel application capacity: Approx. 2780
	entries (ZQ-630) / 6390 entries (ZQ-
	640) / 13590 entries (ZQ-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	32.768 Hz
frequency
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.

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