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ST8012 Dataheets PDF



Part Number ST8012
Manufacturers Sitronix Technology
Logo Sitronix Technology
Description 120 Output LCD Common/Segment driver IC
Datasheet ST8012 DatasheetST8012 Datasheet (PDF)

ST ST8012 Dot Matrix Lcd 120 Output LCD Common/Segment driver IC Notice: Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice. specification. Some parameters are subject to change. This is not a final 1. DESCRIPTION The ST8012 is a 120-output segment/common driver IC suitable for driving small/medium scale dot matrix LCD panels, and is used in PDA or electronic dictionary. The ST8012 is good as a segment driver or a common driver or a common/.

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ST ST8012 Dot Matrix Lcd 120 Output LCD Common/Segment driver IC Notice: Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice. specification. Some parameters are subject to change. This is not a final 1. DESCRIPTION The ST8012 is a 120-output segment/common driver IC suitable for driving small/medium scale dot matrix LCD panels, and is used in PDA or electronic dictionary. The ST8012 is good as a segment driver or a common driver or a common/segment driver, and it can create a low power consuming, high-resolution LCD. The ST8012 have eight modes can selected to set common and segment numbers by select pin. The ST8012 Low-power liquid crystal display power supply circuit equipped internally. Booster circuit (with Boost ratio of 2X/3X/4X/5X/6X) Abundant command functions LCD bias set, electronic volume, VSS voltage regulation internal resistor ratio and booster frequency. All Functions have initial value, user can use the default value or setting by programmable pin to set. If select segment mode then except booster circuit will opened others circuit (follower and regulator circuit) will automatic closed. When don’t used the serial interface, we can select one of default modes by serial interface pins please see Table5. Package: 154-pin COB. (Segment mode) Shift clock frequency - 20 MHz (MAX.): VDD = +5.0 ± 0.5 V - 15 MHz (MAX.): VDD = +3.0 to + 4.5 V - 12 MHz (MAX.): VDD = +2.5 to + 3.0 V Adopts a data bus system 4-bit parallel / serial input modes are selectable with a mode (P/S) pin Automatic transfer function of an enable signal Automatic counting function which, in the chip also have analog DC/DC converter to use. 2. FEATURES Number of LCD drive outputs: 120 Supply voltage for LCD drive: Max +16V Supply voltage for the logic system: +2.5 to +5.5 V Low power consumption and low output impedance SEL2,SEL1,SEL0 DUTY 0 0 0 --0 0 1 1/32 0 1 0 1/48 0 1 1 1/64 1 0 0 1/80 1 0 1 1/96 1 1 0 1/112 1 1 1 1/120 BIAS Segment mode 1/6 or 1/5 1/7 or 1/5 1/9 or 1/7 1/9 or 1/7 1/10 or 1/8 1/11 or 1/9 1/11 or 1/9 Displa y duty select able by select pin www.DataSheet4U.com selection mode, causes the internal clock to be stopped by automatically counting 88、72、56 、40、 24、8 or 120 bits of input data Line latch circuits are reset when XDISPOFF active (Common mode) Shift clock frequency: 4 MHz (MAX.) V1.6 1/ 47 2004/09/08 ST8012 Built-in X-bit shift register Available in a single mode Y1->YX Single mode YX->Y1 Single mode PS:X=32、48、64、80、96、112、120 The above 4 shift directions are pin-selectable Shift register circuits are reset when XDISPOFF active www.DataSheet4U.com V1.6 2/ 47 2004/09/08 ST8012 3. PIN DESCRIPTION SYMBOL I/O O P I P I/O I I I I DESCRIPTION LCD drive output Power supply for LCD drive Display data shift direction selection Power supply for logic system (+2.5 to +5.5 V) Input/output for chip selection at segment mode and FLM input output function at com/seg mix mode or common mode Display data input at segment mode Clock input for taking display data at segment mode Control input for output of non-select level Latch pulse input for display data at segment mode/ Shift clock input for shift register at common mode I I AC-converting signal input for LCD drive waveform System Reset pin .When low level active. The XRST L PULSE timing min value is 200us and max value is 0.5s This is the parallel data input/serial data input switch terminal. P/S I P/S=”H”: Parallel data input. P/S=”L”: Serial data input. VSS CAP1P O Ground (0 V) DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal. DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1- terminal. DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal. DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal. DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1- terminal. DC/DC voltage converter. Connect a capacitor between this terminal and the CAP2- terminal. DC/DC voltage converter. Connect a capacitor between this terminal and the CAP1- terminal. DC/DC voltage converter. Connect a capacitor between this terminal and VSS. This is the command mode select pin. When XCS=”L” then write command to the LCD. See Figure1 3/ 47 No of Num 120 5 1 1 2 4 1 1 1 1 1 COMSEG0-COMSEG119 V0~V4 L/R VDD EIO2, EIO1 DI0-DI3 XCK XDISPOFF LP FR XRST 1 1 1 CAP1+ O 1 CAP2- O 1 CAP2+ O 1 CAP3+ O 1 CAP4+ O 1 CAP5+ www.DataSheet4U.com O 1 VOUT O 1 XCS I 1 V1.6 2004/09/08 ST8012 Don’t toggle SCLK or SID from low level while XCS signal is HIGHT SID SCLK I I The command data. See Figure1 The serial clock input. See Figure1 These pin are Duty selection. SEL2,SEL1,SEL0 SEL 3, 2, 1 0 0 0 0 0 1 1 0 0 1 1 0 1 0 1 0 1 0 1 0, 0, 0 0, 0, 1 0, 1, 0 0, 1, 1 1, 0, 0 1, 0, 1 1, 1, 0 1, 1, 1 DUTY --1/32 1/48 1/64 1/80 1/96 1/112 1/120 BIAS Segment mode 1.


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