LMR4769EW-WCB DENSITRON, LMR4769EW-WCB Datasheet - Page 80

• Manufacturer Part Number: LMR4769EW-WCB
• Description: LCD MODULE, 240X320, BLUE
• Manufacturer: DENSITRON

Specifications of LMR4769EW-WCB

• Lcd Display Type: STN
• Pixel Size (h X W): 0.34mm X 0.34mm
• Display Mode: Transflective
• Interface Type: Serial
• Viewing Area (h X W): 92.14mm X 120.14mm
• Supply Voltage: 32V
• External Depth: 15.6mm
• External: RoHS Compliant
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Backlighting Colour: Blue
• Pixel Pitch (h X W): 0.36mm X 0.36mm

S1D13700 Technical Manual
[1] For overlaying text and graphics
1. Conditions
2. Display memory allocation
(1) 320 x 240 dots: Single-screen drive method (1/240 duty cycle)
(2) First layer: Text display
(3) Second layer: Graphic display
(4) Character font: 8 x 8 dots
(5) CG RAM unused
(1) First layer (text display)
(2) Second layer (graphic display)
Number of characters in horizontal direction = 320 / 8 = 40
Number of characters in vertical direction = 240 / 8 = 30
Therefore, the required size of memory is 40 x 30 = 1,200 bytes.
Number of characters in horizontal direction = 320 / 8 = 40
Number of characters in vertical direction = 240 / 1 = 240
Therefore, the required size of memory is 40 x 240 = 9,600 bytes.
0000h
First layer (text)
(1,200 bytes)
Example of display mode settings [1]
[Relationship between display and memory]
04B0h
Second layer (graphics)
(9,600 bytes)
EPSON
04AFh
2A2Fh
4: FUNCTION DESCRIPTION
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