technical specifications


Inside the REX 6000
Click to Enlarge
(Photo by Di)

More Tech Info
Di's Technical Page

Case: Standard Type-II PCMCIA card (PC Card) in combination metal and plastic case.

Processor: 4.3 MHz Z80 processor embedded in a proprietary VLSI chip. Processor halts to conserve power when not busy.

Clock: 32 KHz clock independent from CPU. Time and date is set during synchronization.

Power: 6V in the form of two CR2016 lithium button batteries. These last 1 week to many months, depending on use. Uses cradle power when synchronizing. Automatic power-off when not in use (user adjustable).

Memory: 2 MB permanent Flash RAM won't forget when you change the batteries. Rated 100,000 minimum erase/write cycles per cell.

Display: Dimensions are 5 1/2 x 3 1/4 cm at 240 x 120 pixel resolution for 28,800 pixels. (For comparison, Palm has 25,600, or 160 x 160 on a larger display). Crisp monochrome reflective active matrix LCD. No backlight. Non-square pixels are taller than wide with 1.2 aspect ratio.

Operating System: Proprietary. Can remember state of different tasks to a limited extent when switching tasks.

Input: Touch-sensitive display for either finger or stylus with seven application buttons printed along the bottom. Five physical pushbuttons along the side. Display shows a keyboard for text entry. No input buffer.

Sound: Watch-type "beep beep" alarm. Keyclick. Both can be turned on or off independently.

Sync: Syncs through the PCMCIA plug on the end. Plugs into supplied cradle or a standard PCMCIA slot.

Drivers: If plugged into a PCMCIA slot, the system sees it as a modem card. Special drivers are included for the sync cradle.

Cradle: Either a USB cradle powered by the USB bus, or a RS-232 serial cradle powered by 4 AA batteries. Supports only the REX, not other PCMCIA cards.