chip on glass
chip on glass ADG12864A13
Model No. ADG12864A13
►128x64 COG display
►Graphic LCD
chip on glass
chip on glass ADG12864A13
Model No.ADG12864A13
►128x64 COG display
►Graphic LCD
►Built-in controller ST7565P-G
►5V power supply
►1/65 Duty, 1/9 Bias
►Interface : Parallel and Serial Interface MPU
Description of chip on glass ADG12864A13
What is Chip On Glass (COG)?
Chip On Glass is the mounting of the LCD IC directly onto the ledge of the LCD glass itself. The IC is bonded with an anisotropic conductive film (ACF), which facilitates the mechanical adhesion, as well as the conduction from the IC to the glass.
1. FEATURES
The features of LCD are as follows
* Display mode: STN, Negative, Transmissive
* Color: Display dot: White
Background: Blue
* Display Format: 128 Dots × 64 Dots graphic
* IC: Sitronix ST7565P-G
* Interface Input Data: Parallel and Serial Interface MPU
* Driving Method: 1/65 Duty, 1/9 Bias
* Viewing Direction: 6 O’clock
* Backligh: N/A
2. MECHANICAL SPECIFICATIONS
Item | Specification | Unit |
Module Size | 57.6(W) X 57.1(H) X 2.1MAX(T) | mm |
Viewing Area | 54.6MIN(W) X 32.0MIN(H) | mm |
Effective Display Area | 49.89(W) X 27.49(H) | mm |
Number of Dots | 128 X 64 Dots | - |
Dot Size | 0.36(W) X 0.40(H) | mm |
Dot Pitch | 0.39(W) X 0.43(H) | mm |
3. ELECTRICAL SPECIFICATIONS (Continued)
3-2-1.Electrical Characteristics
Item | Symbol | Test | Min. | Typ. | Max. | Unit | |
Supply Voltage For Logic | VDD - VSS | - | 2.7 | 3.0 | 3.3 | V | |
Supply Voltage For LCD | V0-Vss | TA=-20℃ | 9.54 | 9.79 | 10.04 | V | |
TA=25℃ | 9.25 | 9.50 | 9.75 | V | |||
TA=70℃ | 8.97 | 9.22 | 9.47 | V | |||
Input Voltage | “H” Level | V IH | - | 0.8VDD | - | VDD | V |
“L” Level | V IL | VSS | - | 0.2VDD | V | ||
Output Voltage | “H” Level | V OH | IOUT= -0.5mA | 0.8VDD | - | VDD | V |
“L” Level | V OL | IOUT= 0.5mA | VSS | - | 0.2VDD | V | |
Current Consumption | IDD | VIN = VDD | - | 0.20 | 2.0 | mA | |
NOTE: 1) Duty ratio=1/65, Bias=1/9 2) Measured in Dots ON-state
4. POWER SUPPLY and BLOCK DIAGRMA
4-1 Power supply
When the voltage regulator internal resistor is not used.
(Example where VDD2=VDD, with 4x step-up)
4-2 Block diagram
5. ELECTRO – OPTICAL CHARACTERISTICS
Item | Symbol | Temp. | Min. | Typ. | Max. | Unit | Conditions | Note |
Viewing | Θ2 –Θ1 | 25℃ | 30 | 100 | - | Deg. | - | 1,2 |
Φ | 60 | 85 | - | |||||
Contrast | Cr | 25℃ | 2 | 2.79 | 5.72 | 25℃ | Θ=0° | 3 |
Response | Tr | 70℃ | - | 65 | 150 | ms | Θ=0° | 4 |
25℃ | - | 176 | 250 | |||||
-20℃ | - | 6200 | 7500 | |||||
Response | Tf | 70℃ | - | 64 | 150 | ms | Θ=0° | 4 |
25℃ | - | 125 | 250 | |||||
-20℃ | - | 2860 | 4200 |
Note1. Definition of Angle Θ&Φ | Note2. Definition of Viewing Angle Θ1&Θ2 |
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Note3. Definition of Contrast Cr | Note4. Definition of Optical Response |
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6. Interface Pin Function
Pin NO. | Symbol | I / O | Functions |
1 | P/S | I | This is the parallel data input/serial data input switch terminal. |
2 | C86 | I | This is the MPU interface switch terminal. |
3 | VR | I | Output voltage regulator terminal. Provides the voltage between VSS and V0 through a resistive voltage divider. |
4~8 | V0~V4 | Power | This is a multi-level power supply for the liquid crystal drive. |
9 | CAP2N | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2P terminal. |
10 | CAP2P | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2N terminal. |
11 | CAP1P | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal. |
12 | CAP1N | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1P terminal. |
13 | CAP3P | O | DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1N terminal. |
14 | VOUT | O | DC/DC voltage converter. Connect a capacitor between this terminal and vss or VDD |
15 | VSS | Power | Ground |
16 | VDD | Power | Power supply |
17~24 | D7~ D0 | I/O | This is an 8-bit bi-directional data bus that connects to an 8-bit or 16-bit standard MPU data bus. |
25 | /RD(E) | I | The data bus is in output status when this signal is “L” |
26 | /WR(R/W) | I | The data bus are latched at the rising edge of the WR signal |
27 | A0 | I | This is connect to the least significant bit of the Norman MPU address bus, and it determines whether the data bits are data or a command. |
28 | /RES | I | When RES is set to “L”, the setting are initialized. |
29 | /CS1 | I | This is the chip select signal. |
ST7565P
65 x 132 Dot Matrix LCD Controller/Driver
Product Description
The ST7565P is a single-chip dot matrix LCD driver that can be connected directly to a microprocessor bus. 8-bit parallel or serial display data sent from the microprocessor is stored in the internal display data RAM and the chip generates a LCD drive signal independent of the microprocessor. Because the chips in the ST7565P contain 65x132 bits of display data RAM and there is a 1-to-1 correspondence between the LCD panel pixels and the internal RAM bits, these chips enable displays with a high degree of freedom. The ST7565P chips contain 65 common output circuits and 132 segment output circuits, so that a single chip can drive a 65x132 dot display (capable of displaying 8 columnsx4 rows of a 16x16 dot kanji font).
Moreover, the capacity of the display can be extended through the use of master/slave structures between chips. The chips are able to minimize power consumption because no external operating clock is necessary for the display data RAM read/write operation. Furthermore,because each chip is equipped internally with a low-power LCD driver power supply, resistors for LCD driver power voltage adjustment and a display clock CR oscillator circuit, the ST7565P can be used to create the lowest power display system with the fewest components for high-performance portable devices.
Features
•Direct display of RAM data through the display data RAM.
•RAM capacity : 65 x 132 = 8580 bits
•Display duty selectable by select pin
-- 1/65 duty : 65 common x 132 segment
-- 1/49 duty : 49 common x 132 segment
-- 1/33 duty : 33 common x 132 segment
-- 1/55 duty : 55 common x 132 segment
-- 1/53 duty : 53 common x 132 segment
•High-speed 8-bit MPU interface (The chip can be connected directly to the both the 80x86 series MPUs and the 68000 series MPUs) / Serial interfaces are supported.
•Abundant command functions Display data Read/Write, display ON/OFF, Normal/Reverse display mode, page address set, display start line set, column address set, status read, display all points ON/OFF, LCD bias set, electronic volume, read/modify/write, segment driver direction selects, power saver, static indicator, comm
