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ST8012 Fiches technique(PDF) 1 Page - Sitronix Technology Co., Ltd.

No de pièce ST8012
Description  120 Output LCD Common/Segment driver IC
Download  47 Pages
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Fabricant  SITRONIX [Sitronix Technology Co., Ltd.]
Site Internet  http://www.sitronix.com.tw
Logo SITRONIX - Sitronix Technology Co., Ltd.

ST8012 Fiches technique(HTML) 1 Page - Sitronix Technology Co., Ltd.

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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.
This is not a final
specification. Some parameters are subject to change.
V1.6
1/ 47
2004/09/08
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
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
Displa
y duty
select
able
by
select
pin
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
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.)
SEL2,SEL1,SEL0 DUTY
BIAS
0
0
0
---
Segment mode
0
0
1
1/32
1/6 or 1/5
0
1
0
1/48
1/7 or 1/5
0
1
1
1/64
1/9 or 1/7
1
0
0
1/80
1/9 or 1/7
1
0
1
1/96
1/10 or 1/8
1
1
0
1/112
1/11 or 1/9
1
1
1
1/120
1/11 or 1/9


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