ST8009
Dot Matrix Lcd 96 Output LCD Common/Segment driver IC
Product Description
The ST8009 is a 96-output segment/common driver IC suitable for driving small/medium scale dot matrix LCD
panels, and is used in PDA or electronic dictionary. The ST8009 is good as a segment driver , a common driver or
a common/segment driver, and it can create low power consumption, high-resolution LCD. The ST8009 have eight
modes can selected to set common and segment numbers by select register. The ST8009 also have analog
DC/DC converter to used.
Features - Number of LCD drive outputs: 96
- 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
- Display duty selectable by internal select register
- Low-power liquid crystal display power supply circuit equipped internally.
- Booster circuit (with Boost ratio of 2X/3X/4X/5X/6X)
- Regulator circuit
- Follower circuit
- Abundant command functions
LCD bias set, electronic volume, VSS voltage regulation internal resistor ratio and booster frequency.
All Functions have initial value, user can set by programmed.
- Package: 124-pin COB.
(Segment mode)
- Shift clock frequency
- 20 MHz (MAX.): VDD = +5.0 ¡Ó 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 by programmable.
- Automatic transfer function of an enable signal
- Automatic counting function which, in the chip selection mode, causes the internal clock to be stopped by
automatically counting 16¡B32¡B48 ¡B64¡B80¡B96 bits of input data
- Line latch circuits are reset when XDISPOFF active (Common mode)
- Shift clock frequency: 4 MHz (MAX.)
- Built-in X-bit shift register
- Available in a single mode
- Y0->YX Single mode
YX->Y0 Single mode
PS:X=15¡B31¡B47¡B63¡B79¡B95
The above 4 shift directions are register selectable
- Shift register circuits are reset when XDISPOFF active
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