12864 COG GRAPHIC LCD WITH 8080 OR 6800 MPU INTERFACE
DM-COG12864-708
Contents Revision History Main Features Pin Description Mechanical Drawing Electrical Characteristics Optical Characteristics Block diagram Timing Characteristics System Bus Read/Write Characteristics (For the 8080 Series MPU) System Bus Read/Write Characteristics (For the 6800 Series MPU) Table of Commands Driver/Controller Information Reliability Warranty and Conditions
Function Description Used to enter chip select signal Controller reset (module reset) Register select signal Read/write select signal Operation (data read/write) enable signal Four low order bi-directional three-state data bus lines. Used for data transfer between the MPU and the LCM. These four are not used during 4-bit operation. Four high order bi-directional three-state data bus lines. Used for data transfer between the MPU Power supply for logic (+5V) for LCM Signal ground for LCM (GND)
DC/DC voltage converter.
A multi-level power supply for the liquid crystal drive. Output voltage regulator terminal. This is the MPU interface switch terminal. This is the parallel input/serial data input switch terminal. This terminal selects the resistors for the V5 voltage level adjustment.
Item Supply Voltage For Logic Digital Operation Current Low Level Input Voltage High Level Input Voltage Low Level Output Voltage High Level Output Voltage Backlight Forward Voltage Backlight Forward Current Operating Temperature Storage Temperature
Symbol VDD IDD VIL VIH VOL VOH VLED ILED TOP TST
Condition - Absolute Max Absolute Max
Min 3.0 - 0 2.2 - 2.4 -20 -30
Typ. 3.3 0.35 - - 6.0 30
Max 3.5 0.45 0.6 VDD 0.4 - 70 80
Max 35 40 500
Unit ° ° us cd/m²
Unit V mA V V V V V mA ℃ ℃
6 Optical Characteristics Item View Angle-Top -- Bottom View Angle-Left -- Right Response Time (25°C) Contrast Ratio Luminance
Item Address hold time Address setup time System cycle time Control Low pulse width (/WR) Control Low pulse width (/RD) Control High pulse width (/WR) Control High pulse width (/RD) Data setup time Address hold time /RD access time Output disable time
Min 0 0 166 30 70 30 30 30 10 - 5
Typ Max Unit - - ns ns - - ns - - ns - - ns - - ns - - ns - ns - ns 70 ns 50 ns VDD=2.7V to 4.5V, Ta=25C
Item Address hold time Address setup time System cycle time Control Low pulse width (/WR) Control Low pulse width (/RD) Control High pulse width (/WR) Control High pulse width (/RD) Data setup time Address hold time /RD access time Output disable time
Item Address hold time Address setup time System cycle time Enable Low pulse width (WRITE) Enable High pulse width (WRITE) Enable Low pulse width (READ) Enable High pulse width (READ) WRITE Data setup time WRITE Address hold time READ Access time READ Output disable time
Item Address hold time Address setup time System cycle time Enable Low pulse width (WRITE) Enable High pulse width (WRITE) Enable Low pulse width (READ) Enable High pulse width (READ) WRITE Data setup time WRITE Address hold time READ Access time READ Output disable time
11 Reliability Test Item High Temperature Storage Low Temperature Storage High Temperature Operation
Low Temperature Operation High Temperature/ Humidity Operation
Thermal Shock Resistance
Content of Test Endurance test applying the high storage temperature for a long time. Endurance test applying the high storage temperature for a long time. Endurance test applying the electric stress (Voltage & Current) and the thermal stress to the element for a long time. Endurance test applying the electric stress under low temperature for a long time. The module should be allowed to stand at 60℃,90%RH max, for 96hrs under no-load condition excluding the polarizer. Then taking it out and drying it at normal temperature. The sample should be allowed stand the following 10 cycles of operation
Test Condition 80℃ 200hrs -30℃ 200hrs 70℃ 200hrs
-20 ℃ 200hrs
Note 2 1,2
-
1
60℃,90%RH 96hrs 1,2
-20℃/70℃ 10 cycles -
Vibration Test
Static Electricity Test
Endurance test applying the vibration during transportation and using
Endurance test apply the electric stress to the terminal.
Total fixed amplitude: 15mm; Vibration: 10~55Hz; One cycle 60 seconds to 3 directions of X, Y, Z, for each 16 minutes. VS=800V, RS=1.5kΩ, CS=100pF, 1 time.
3
-
Note1: No dew condensation to be observed. Note2: The function test shall be conducted after 4 hours storage at the normal. Temperature and humidity after remove from the rest chamber. Note3: Test performed on product itself, not inside a container.
12 Warranty and Conditions http://www.displaymodule.com/pages/faq
