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GSM7980 Dataheets PDF



Part Number GSM7980
Manufacturers Syntec Semiconductor
Logo Syntec Semiconductor
Description Dot Matrix LCD Controller/Driver
Datasheet GSM7980 DatasheetGSM7980 Datasheet (PDF)

Syntek Semiconductor Co., Ltd. Description GSM7980 The GSM7980 dot-matrix liquid crystal display controller and driver LSI displays alphanumeric, Japanese kana characters, and symbols. It can be configured to drive a dot-matrix liquid crystal display under the control of a 4- or 8-bit microprocessor. Since all the functions such as display RAM, character generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally provided on one chip, a minimal.

  GSM7980   GSM7980


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Syntek Semiconductor Co., Ltd. Description GSM7980 The GSM7980 dot-matrix liquid crystal display controller and driver LSI displays alphanumeric, Japanese kana characters, and symbols. It can be configured to drive a dot-matrix liquid crystal display under the control of a 4- or 8-bit microprocessor. Since all the functions such as display RAM, character generator, and liquid crystal driver, required for driving a dot-matrix liquid crystal display are internally provided on one chip, a minimal system can be interfaced with this controller/driver. The GSM7980 has pin function compatibility with the HD44780, KS0066U and SED1278 that allows the user to easily replace it with an GSM7980. The GSM7980 character generator ROM is extended to generate 208 5 x 8 dot character fonts and 32 5 x 10 dot character fonts for a total of 240 different character fonts. The low power supply (2.7V to 5.5V) of the GSM7980 is suitable for any portable battery-driven product requiring low power dissipation. The GSM7980 LCD driver consists of 16 common signal drivers and 40 segment signal drivers which can extend display size by cascading segment driver GSM788E, GSM798E or GSM793E. The maximum display size can be either 80 characters in 1-line display or 40 characters in 2-line display. A single GSM7980 can display up to one 8-character line or two 8-character lines. Features l l www.DataSheet4U.com 5 x 8 and 5 x 10 dot matrix possible Low power operation support: -- 2.7 to 5.5V Wide range of LCD driver power -- 3.0 to 11V Correspond to high speed MPU bus interface -- 2 MHz (when VCC = 5V) 4-bit or 8-bit MPU interface enabled 80 x 8-bit display RAM (80 characters max.) 9,920-bit character generator ROM for a total of 240 character fonts -- 208 character fonts (5 x 8 dot) -- 32 character fonts (5 x 10 dot) 64 x 8-bit character generator RAM -- 8 character fonts (5 x 8 dot) -- 4 character fonts (5 x 10 dot) 16-common x 40-segment liquid crystal display driver Programmable duty cycles -- 1/8 for one line of 5 x 8 dots with cursor -- 1/11 for one line of 5 x 10 dots & cursor l l l l l -- 1/16 for two lines of 5 x 8 dots & cursor Wide range of instruction functions: Display clear, cursor home, display on/off, cursor on/off, display character blink, cursor shift, display shift Pin function compatibility with HD44780, KS0066 and SED1278 Automatic reset circuit that initializes the controller/driver after power on Internal oscillator with external resistors Low power consumption QFP80 and Bare Chip available l l l l l l l l l LCD Controller / Driver 1 /1 ISSUE DATE : Syntek Semiconductor Co., Ltd. Block Diagram GSM7980 OSC1 Reset Circuit CPG OSC2 CL1 CL2 M Timing Generator D Instruction Register (IR) RS RW E MPU Interface Instruction Decoder 40-bit shift register 40-bit latch circuit Segment Signal Driver Display data RAM (DDRAM) 80x8 bits 16-bit shift register Common Signal Driver COM1 to COM16 SEG1 to SEG40 Address Counter DB4 to DB7 Input/ Output Buffer Data Register (DR) Busy Flag www.DataSheet4U.com DB0 to DB3 LCD Drive Voltage Selector Character generator RAM (CGRAM) 64 bits Character generator ROM (CGROM) 9,920 bits Cursor and Blink controller GND Parallel/Serial converter and Attribute Circuit Vcc V1 V2 V3 V4 V5 LCD Controller / Driver 2 /2 ISSUE DATE : Syntek Semiconductor Co., Ltd. Pad Arrangement GSM7980 1 80 64 GSM7980 "GSM7980" Marking : easy to find the PAD (0,0) www.DataSheet4U.com Chip Size : 2300x3000 Coordinate : Pad Center Origin : Chip Center Pad Size : 90x90 Unit : um 24 41 LCD Controller / Driver 3 /3 ISSUE DATE : Syntek Semiconductor Co., Ltd. Pad Location Coordinates Pad No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 Pad No. Function SEG22 SEG21 SEG20 SEG19 SEG18 SEG17 SEG16 SEG15 SEG14 SEG13 SEG12 SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 GND OSC1 OSC2 V1 V2 V3 V4 V5 CL1 CL2 Vcc M D RS RW E DB0 DB1 Function X -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -1040 -910 -780 -660 -540 -420 -300 -180 -60 60 180 300 420 540 660 780 910 X Y 1400 1270 1140 1020 900 780 660 540 420 300 180 60 -60 -180 -300 -420 -540 -660 -780 -900 -1020 -1140 -1270 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 -1400 Y 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 DB2 DB3 DB4 DB5 DB6 DB7 COM1 COM2 COM3 COM4 COM5 COM6 COM7 COM8 COM9 COM10 COM11 COM12 COM13 COM14 COM15 COM16 SEG40 SEG39 SEG38 SEG37 SEG36 SEG35 SEG34 SEG33 SEG32 SEG31 SEG30 SEG29 SEG28 SEG27 SEG26 SEG25 SEG24 SEG23 GSM7980 www.DataSheet4U.com 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 1040 910 780 660 540 420 300 180 60 -60 -180 -300 -420 -540 -660 -780 -910 .


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