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NT7605 Dataheets PDF



Part Number NT7605
Manufacturers Novatek
Logo Novatek
Description Single-chip 20C X 2L Dot-Matrix LCD Controller / Driver
Datasheet NT7605 DatasheetNT7605 Datasheet (PDF)

NT7605 Single-chip 20C X 2L Dot-Matrix LCD Controller / Driver Features ! Internal LCD drivers 16 common signal drivers 100 segment signal drivers ! Maximum display dimensions 20 characters * 2 lines or 40 characters * 1 line ! Interfaces with 4-bit or 8-bit MPU ! Versatile display functions provided on chip: Display Clear, Cursor Home, Display ON/OFF, Cursor ON/OFF, Character Blinking, Cursor Shift, and Display Shift ! Three duty factors, selected by PROGRAM: 1/8, 1/11, and 1/16 ! Displays Da.

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NT7605 Single-chip 20C X 2L Dot-Matrix LCD Controller / Driver Features ! Internal LCD drivers 16 common signal drivers 100 segment signal drivers ! Maximum display dimensions 20 characters * 2 lines or 40 characters * 1 line ! Interfaces with 4-bit or 8-bit MPU ! Versatile display functions provided on chip: Display Clear, Cursor Home, Display ON/OFF, Cursor ON/OFF, Character Blinking, Cursor Shift, and Display Shift ! Three duty factors, selected by PROGRAM: 1/8, 1/11, and 1/16 ! Displays Data RAM (DD RAM): 80 X 8 bits (Displays up to 80 characters) ! Character Generator RAM (CG RAM): 64 X 8 bits for general data, 8 5 X 8 programmable dot patterns, or 4 5 X 10 programmable dot patterns ! Low voltage reset ! ITO option for A-type and B-type LCD waveform ! 2 kinds of LCD pads sequence ! Character Generator ROM (CG ROM): 2 kinds of CG ROM sizes: 192 characters: 160 5 X 8 dot patterns 32 5 X 10 dot patterns 240 characters: 192 5 X 8 dot patterns 48 5 X 10 dot patterns Custom CG ROM is also available ! Built-in power-on reset function ! Logic power supply: 2.8V ~ 5.5V ! LCD driver power supply: V1 ~ V5 divided by Built-in LCD power division resister. ! Two oscillator operations (Freq. = 500KHz - 540KHz): • Built-in RC oscillation • External clock ! CMOS Process ! Available in COG FORM General Description The NT7605 is a dot matrix LCD controller and driver LSI that can operate with either a 4-bit or an 8-bit microprocessor (MPU). NT7605 receives control character codes from the MPU, stores them in an internal RAM (up to 80 characters), transforms each character code into a 5 X 7, 5 X 8, or 5 X 10 dot matrix character pattern, and then displays the codes on the LCD panel. The built-in Character Generator ROM consists of 256 different character patterns. The NT7605 also contains Character Generator RAM where the user can store 8 different character patterns at run time. These memory features make the character display flexible. NT7605 also provides many display instructions to achieve versatile LCD display functions. The NT7605 is fabricated on a single LSI chip using the CMOS process, resulting in very low power requirements. 1 V2.1 Pad Configuration 162 163 180 1 NT7605 5600µm 11 12 13 14 26 27 29 30 38 39 44 45 NT7605 83 82 1230µm 65 64 Item Chip size Pad pitch Pad No. - 1 - 180 X 1230 Size 65 Y 5600 Unit µm 2 Block Diagram NT7605 V1 V2 V3 V4 V5 VDD GND OSC1 OSC2 INSTRUCTION 8 DECODE 7 8 INSTRUCTION REGISTER (IR) ADDRESS COUNTER RS R/W E 7 I/O BUFFER 77 CURSOR ADDRESS COUNTER DB7 ~ DB4 4 8 DATA REGISTER (DR) 87 TIMING GENERATOR 7 LCD DRIVER VOLTAGE GENERATOR OPT_UD OPT_R0 OPT_R1 OPT_LCD TEST TESTM 7 DISPLAY DATA RAM (DD RAM) 80 X 8 BITS 16-BIT SHIFT REGISTER 16 COMMON SIGNAL DRIVER 16 COM1 I COM16 8 CURSOR /BLINK 8 CONTROLLER DB3 ~ DB0 4 BUSY FLAG (BF) CHARACTER GENERATOR RAM (CG RAM) 64 X 8 BITS 5 CHARACTER GENERATOR ROM (CG ROM) 5 100-BIT LATCH CIRCUIT 100 SEGMENT SIGNAL DRIVER 100 SEG1 I SE.


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