SED1520D0A Datasheet, PDF (29/52 Pages) List of Unclassifed Manufacturers – DOT MATRIX LCD DRIVER

4.0 Commands
4.13 – 4.14.1
4.13 RESET
This command initializes the display start line register, column address counter, and page address
counter without any effect on the display data RAM. For details, see section 2.3.12.
The reset operation follows entry of the Reset command.
R/W
A0 RD WR D7
D0
01011100010
Initialization at power-on is performed not by the Reset command but by a reset signal applied to
the RES pin.
4.14 SAVE POWER (COMBINED COMMAND)
Static drive going on with display off invokes power-saving mode, reducing current consumption
to nearly static current level. During this mode, the SED1520 holds the following conditions:
(a) It stops driving the LCD; the segment and common driver outputs are at VDD level.
(b) Oscillation and external clock input are disabled; OSC2 is in floating condition.
(c) The display data and operational mode are held.
The power-saving mode is cancelled by display on or static drive off.
If an external resistor division circuit is used to give LCD driving voltage level, the current flowing
into the resistors must be cut off by the power-save signal.
4.14.1 External Resistor Division Circuit
V_DD
Power
Save
Signal
V_SSH
V_DD
V₁
V_{2 SED1520}
V₃
V₄
–•
V₅
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