20-101-0303 Rabbit Semiconductor, 20-101-0303 Datasheet - Page 33
![SMARTSCREEN OP7100 W/TOUCHSCREEN](/photos/7/91/79136/20-101-0303_sml.jpg)
20-101-0303
Manufacturer Part Number
20-101-0303
Description
SMARTSCREEN OP7100 W/TOUCHSCREEN
Manufacturer
Rabbit Semiconductor
Datasheet
1.101-0303.pdf
(126 pages)
Specifications of 20-101-0303
Display Type
STN - Super-Twisted Nematic
Viewing Area
121.00mm L x 91.00mm W
Backlight
CCFL - White
Dot Pitch
0.36mm x 0.36mm
Dot Pixels
320 x 240 (QVGA)
Interface
Serial
Product
Prototyping Accessories
Processor Type
Z180
Sram
128 KB
Flash
512 KB
Number Of I/os
16
Backup Battery
3 V Lithium Coin Type
Operating Voltage
10 V to 30 V
Power Consumption
4.5 W
Interface Type
Ethernet
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Display Mode
-
Dot Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
20-101-0303
20-101-303
20-101-303
316-1175
20-101-303
20-101-303
316-1175
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Other functions support the LCD module to adjust its contrast and to turn
the white CCFL backlight on and off. A variable resistor between two of
the LCD module’s terminals sets the contrast, which is set either by soft-
ware or manually, depending on the jumper setting on header JP2. Once a
contrast value is set, it will be maintained. A single programmed I/O bit is
used to turn the backlight on or off.
The controller chip used in OP7100’s sold before 2006 supported either
32K or 64K of SRAM. These OP7100s were designed using a dual-
footprint SRAM to accept either one 32K or two 32K SRAM. One 32K
part was standard.
OP7100 units sold after June, 2006, have a new LCD controller chip because
the previously used LCD controller chip is no longer available. The new LCD
controller chip has 32K of internal SRAM. Figure 3-9 shows the area of the
OP7100 that changed to accommodate the new LCD controller chip. The new
LCD controller is not 100% code-compatible with the old chip—the New
LCD Controller Chip section on p. 73 explains how to handle programs
developed for an OP7100 for the older LCD controller chip.
Figure 3-9. How to Identify Pre-2006 OP7100 Boards
OP7100
Hardware 33
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