LCD 128*64

Характеристики:

  • lcd type: fstn
  • duty, bias: duty=164, bias=19
  • viewing direction 6 o’clock
  • module size (LxWxH) with FPC 32x19.2x1.8mm (max)
  • View area(LxW) 27.95x12.9mm
  • Dots matrix (segment * comment) 128*64 dots
  • dot size (LxW) 0.16x0.145mm
  • dot pitch(w*H) 0.19x0.175mm
  • lcd driver ic st7565 (sitronix)

absolute maximum ratings (Ta = 25 centigrade degree)

Parameter symbol Min Max Unit
Supply voltgage for logic VDD -0.3 3.2 V
LCD driving voltage V0-VSS 8.3 8.7 V
Operating temperature Top 0 +50 centigrade degree
Storage temperature Tst -10 +60 centigrade degree

OPERATING PRINCIPLES & METHODS

INTERFACE PIN CONNECTIONS

Pin No Symbol I/O Function
1 LED+ I light+
2 LED- I light-
3 IRS I IRS=H” use the intemal resistors;IRS=L” DO not use the intemal resistors.
4 P/S I This is the parallel data input/-4line SPL data input switch terminal
5 C68 I This is the MPU interfaces witch terminal .C68=H “ 6800 series; C68=L” 8080 series.
6 VR I IRS=l”theV0 voltage regulator intemal resistors are used IRS=H’ V0 voltage regulator intemal resistors are not used
7 V0 I/O LCD driver Power supply voltages
8 V4 I/O LCD driver Power supply voltages
9 V3 I/O LCD driver Power supply voltages
10 V2 I/O LCD driver Power supply voltages
11 V1 I/O LCD driver Power supply voltages
12 CAP2+ O Capacitor 2+ connected to the internal voltage converter.
13 CAP2- O Capacitor 2- connected to the internal voltage converter
14 CAP1+ O Capacitor 1+ connected to the internal voltage converter.
15 CAP1- O Capacitor 1- connected to the internal voltage converter
16 CAP3+ O Capacitor C3+ connected to the internal voltage converter
17 VOUT O Voltage converter output pin.
18 VDD Supply Power supply for logic.
19~27 D7~D0 I/O Data bus.
28 RD I Read/Write signal. “H”: read, “L”: write.
29 WR I Read/Write enable signal.
30 A0 I Register select pin. Command register is selected when “L”, Data register is selected when “H”.
31 RESETB I Hardware reset input pin. Active when “L”.
32 CS I Chip select input. Active when “L”.

NOTE: PLEASE SEE THE DATA SHEET OF ST7565 TO GET MORE DETAIL, THE FOLLOWING IS COPIED FROM ST7565 DATA SHEET CAN NOT PROMISE VERY CORRECT . IT IS ONLY FOR REFERENCE WHEN YOU BUY NOT FOR DESIGN.

COMMAND                       COMMAND CODE                                FUNCTION
                              A0 /RD /WR     D7 D6 D5 D4 D3 D2 D1 D0   


(1) Display ON/OFF            0  1   0       1  0  1  0  1  1  1  0
                                                                  1     LCD DISPLAY ON OFF 1 ON 0 OFF
(2) Display start Line Set    0  1   0       0  1   DISPLAY START ADDRESS   SET THE DISPLAY RAM START LINE ADDRESS


(3)Page address set           0  1   0       1  0   1  1 PAGE ADDRESS       SET THE DISPLAY RAM PAGE ADDRESS
(4)Column address set         0  1   0       0  0   0  1 Most significant  Set most significant 4 bits of the display RAM column address.
   upper bit                                             column address
   Column address set                        0  0   0  1 Least significant Set the least significant 4 bits of the display RAM column address      
   lower bit                                             column address
(5) Status read               0  0   1       status     0  0  0  0        Reads the satus data
(6) Display data write        1  1   0       write data                  Writes to the display RAM
(7) Display data read         1  0   1       read data                   Reads frim the display RAM
(8) ADC select                0  1   0      1  0  1  0  0  0  0  0      Sets the display RAM address SEG output 
                                                                         correspondence
                                                                 1       o normal 1 reverse
(9) Display normal/reverse    0  1   0      1  0  1  0  0  1  1  0      set the display normal or reverse
                                                                 1       o normal 1 reverse


(10) Display all points       0  1   0      1  0  1  0  0  1  0  0      display all points
    ON/OFF                                                       1      0 notmal 1 all points on
(11) LCD bias set             0  1   0      1  0  1  0  0  0  1  0      set the display driver voltage bias ratio 
                                                                 1      0 1/9 bias , 1: 1/7 bias (st7565r)
(12) Read/modify/write        0  1   0      1  1  1  0  0  0  0  0      column address increment
                                                                        all write +1 all read 0
(13) End                      0  1   0      1  1  1  0  1  1  1  0      clear read/modify/write
(14) Reset                    0  1   0      1  1  1  0  0  0  1  0      internal reset
(15) Common output            0  1   0      1  1  0  0  0  x  x  x      select com out scan direction
    mode select                                         1               o normal direction 1 resver direction
(16) Power control set        0  1   0      0  0  1  0  1 operationg mode select internal power supply operation mode
(17) V0 voltage               0  1   0      0  0  1  1  0 resister ratio  select internal resister ratio (Rb/ Ra) mode
     regulator internal
     resistor ratio set
(18) Electronic volume        0  1   0      1  0  0  0  0  0  0  1        set the Vo output voltage electronic volume register 
     mode set                               0  0 electronic volume value 
     Electronic volume
     regsister set
(19) Static indicator         0   1  0      1  0  1  0  1  1  0   0      0 OFF 1 ON  Set the flashing mode
     ON/OFF                                                       1
     Static Indicator                       0  0  0  0  0  0  0  mode
     register set
(20) Booster radio set        0   1   0     1  1  1  1  1  0  0   0      select booster ratio 00 2x ,3x,4x
                                                              setup           01 5x
                                            0  0  0  0  0  0  value           11 6x
(21) Power save               0   1   0                                  diplay off and display all points on compound command
(22) NOP                      0   1   0     1  1  1  0  0  0  1   1      command for non-operation
(23) Test                     0   1   0     1  1  1  1  x  x  x   x      command for IC test . Do not use this test command

ST7565 LCD driver

 
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