Purchase ML9090-02, In-stock ML9090-02 From SeekIC.
Part Number: ML9090-02
Description: The ML9090-01 and ML9090-02 are LCD drivers that contain internal RAM and a key scan function. They ar...
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ML9090-02
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DataSheet
General Description
ML9090-02 General Description
The ML9090-01 and ML9090-02 are LCD drivers that contain internal RAM and a key scan function. They are best suited for car audio displays.
Since 1-bit data of the display RAM corresponds to the light-on or light-off of 1-dot of the LCD panel (a bit map system), a flexible display is possible.
A single chip can implement a graphic display system of a maximum of 80 × 16 dots (80 ¥ 8 dots for the ML9090-01, 80 × 16 dots for the ML9090-02) and an arbitrator display system of 80 ×2 dots. Since containing voltage multipliers, the ML9090-01 and ML9090-02 require no power supply circuit to drive the LCD.
Since the internal 5 × 5 scan circuit has eliminated the needs of key scanning by the CPU, the ports of the CPU can be efficiently used.
ML9090-02 Maximum Ratings
| Parameter | Symbol | Condition | Rating | Unit | Applicable pins |
| Power Supply Voltage | VDD | Ta = 25°C | 0.3 to +7.0 | V | VDD |
| Bias Voltage | VBI | Ta = 25°C | 0.3 to +18.0 | V | VC1, VC2, VS1, VS2, V2, V3A, V3B |
| Voltage Multiplier Reference | VIN | Ta = 25°C *1 | 0.3 to +9.0 | V | VIN |
| Voltage | VIN | Ta = 25°C *2 | 0.3 to +6.0 | V | VIN |
| Input Voltage | VI | Ta = 25°C | 0.3 to VDD+0.3 | V | CS, CP, DI/O, OSC1, RESET, DT, TEST, C0 to C4 |
| Output Current | IO | Ta = 25°C | -20 | mA | PA0 |
| Output Current | IO | Ta = 25°C | -3 | mA | PB0 to PB7 |
| Power Dissipation | PD | Ta = 85°C | 190 | mW | - |
| Storage Temperature Range | Tstg | - | 55 to +100 | °C | - |
*1: When Ta = 25°C and the voltage doubler is used, use voltage multiplier reference voltage VIN values within a range that does not exceed the power supply voltage VDD.
*2: When Ta = 25°C and the voltage tripler is used, use voltage multiplier reference voltage VIN values within a range that does not exceed the power supply voltage VDD.
ML9090-02 Features
• Logic voltage: VDD 2.7 to 5.5 V
• LCD drive voltage: VBI 6 to 16 V (positive voltage)
• 80 segment outputs,10 common outputs for ML9090-01 and 18 common outputs for ML9090- 02
• Built-in bit-mapped RAM (ML9090-01: 80 * 10 = 800 bits, ML9090-02: 80 * 18 = 1440 bits)
• 4-pin serial interface with CPU: CS, CP, DI/O, KREQ
• Built-in LCD drive bias resistors
• Built-in voltage doubler and tripler circuits
• Built-in 5 * 5 key scanner
• Port A output: 1 pin, output current: -15mA: (may be used for LED driving)
• Port B output: 8 pins, output current -2mA: each pin (general-purpose outputs), available for the ML9090-01 only
• Temperature range: 40 to +85°C
• Package: 128-pin plastic QFP (QFP128-P-1420-0.50-K)
- (Product name: ML9090-01GA)
- (Product name: ML9090-02GA)
ML9090-02 Connection Diagram
ML9090-02
PDF/DataSheet Download
- Datasheet: ML9090-02
- File Size: 330654 KB
- Manufacturer: OKI [OKI electronic componets]
- Click here to Download
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