S1D1 Epson Electronics America, Inc., S1D1 Datasheet - Page 150

• Manufacturer Part Number: S1D1
• Description: LCD Controller-driver With Built-in Character ROM
• Manufacturer: Epson Electronics America, Inc.

S1D15300 Series
• Data Display
Notes: *8: Refer to the “Display Line Set” in the Command Description (2).
• Powering Off *13
Notes: *13: This IC functions as the logic circuit of the power supplies V
• Refresh
Notes: *15: Refer to the “Test Mode Cancellation” in the Command Description (21).
5–26
It is recommended that the operating modes and display contents be refreshed periodically to prevent the effect of unexpected noise.
*9: Refer to the “Page Address Set” in the Command Description (3).
*10: Refer to the “Column Address Set” in the Command Description (4).
*11: Refer to the “Display Data Write” in the Command Description (6).
*12: Refer to the “Display ON/OFF” in the Command Description (1). It is recommended to avoid the all-white-display of the display
*14: When the power save command is entered, you must not implement reset from RES terminal until V
start data.
V
(COM and SEG) may output uncontrolled voltage. Therefore, you are required to observe the following powering off procedure:
Turn the built-in power supply off, then turn off the IC power supplies (V
V
Refer to the “Power Save” in the Command Description.
Function select through the command (user setup)
DD
1
is below the LCD panel threshold voltage level. Refer to the “Supply Circuit” in the Function Description.
Power save *14
– V
5
. Thus, if power supplies V
Turn V
DD
Any state
and V
SS
power off
Set every command according to the state being selected
Function select through the commands (user setup)
Function select through the command (user setup)
Function select through the command (user setup)
Display start line set *8
Page address set *9
Column address set *10
Display data write *11
Display ON/OFF *12
DD
– V
(including setup of the default state).
SS
are turned off while voltage is still present on LCD power supplies V
Data display is complete
Initial setup is complete
Cancel the test mode *15
Refresh the DDRAM.
Refresh sequence
EPSON
DD
The time spent for the operations ranging from power
save through powering off (V
must be longer than the time required for V
under the LCD panel threshold voltage (normally 1V).
*
* It is recommended to cut
– V
t
resisters Ra and Rb (for adjusting voltages V
and the smoothing capacitor C2.
resistor between V
H
is determined by time constant of the external
SS
, and used for controlling the driver of LCD power supplies
DD
– V
SS
DD
) only after making sure that potential of V
and V
t
H
DD
5
shorter by connecting a
.
– V
SS
DD
= 2.4V) (
– V
5
SS
to V
power are turned off.
t
5
H
1
to V
)
go
DD
1
)
– V
Rev.1.4
5
, drivers
5
–