ST8008 查看數據表（PDF） - Sitronix Technology Co., Ltd.
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ST8008 Datasheet PDF : 21 Pages
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ST8008
When P/S is “L” the serial data input mode,
Input pin for selecting the reading direction of display data. Default value is LOW
When set to VSS level "L", data is read sequentially from SEG79 to SEG0.
L/R
When set to VDD level "H", data is read sequentially from SEG0 to SEG79.
Refer to "RELATIONSHIP BETWEEN THE DISPLAY DATA AND LCD DRIVE OUTPUT
PINS" in Functional Operations.
Input/output pins for chip selection.
AT segment mode:
When L/R input is at VSS level "L", ElO1 is set for output, and EIO2 is set for input(connect to Vss).
When L/R input is at VDD level "H", ElO1 is set for input(connect to Vss), and EIO2 is set for
ElO1, EIO2 output.
During output, set to "H" while LP • XCK is "H" and after 80 bits of data have been read, set
to "L” for one cycle (from falling edge to failing edge of XCK), after which it returns to "H".
During input, the chip is selected while El is set to "L" after the LP signal is input. The chip is
non-selected after 80 bits of data have been read.
LCD drive output pins
Corresponding directly to each bit of the data latch, one level (V0, V2, V3, and Vss) is selected and
SEG0–SEG79
output.
Table of truth values is shown in "TRUTH TABLE" in Functional Operations.
Functional Operations
FR
LATCH DATA
/DISPOFF
LCD DRIVE OUTPUT VOLTAGE LEVEL
(SEG0-SEG79)
L
L
H
V3
L
H
H
Vss
H
L
H
V2
H
H
H
V0
X
X
L
Vss
TRUTH TABLE
NOTES:
L : VSS (0 V), H : VDD (+2.5 to +5.5 V),
"Don't care" should be fixed to "H" or "L", avoiding floating.
There are two kinds of power supply (logic level voltage and LCD drive voltage) for the LCD driver.
Supply regular voltage that is assigned by specification for each power pin.
V0.3
9/21
2004/04/05
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