Specifications

S1D15300 Series
5–26 EPSON Rev.1.4
• Data Display
Data display is complete
Initial setup is complete
Function select through the commands (user setup)
Display start line set *8
Page address set *9
Column address set *10
Function select through the command (user setup)
Display ON/OFF *12
Function select through the command (user setup)
Display data write *11
Notes: *8: Refer to the “Display Line Set” in the Command Description (2).
*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
start data.
• Powering Off *13
Turn VDD and VSS power off
Any state
Function select through the command (user setup)
Power save *14
The time spent for the operations ranging from power
save through powering off (VDD – VSS = 2.4V) (tH)
must be longer than the time required for V5 to V1 go
under the LCD panel threshold voltage (normally 1V).
* tH is determined by time constant of the external
resisters Ra and Rb (for adjusting voltages V5 to V1)
and the smoothing capacitor C2.
* It is recommended to cut tH shorter by connecting a
resistor between VDD and V5.
Notes: *13:This IC functions as the logic circuit of the power supplies VDD – VSS, and used for controlling the driver of LCD power supplies
V
DD – V5. Thus, if power supplies VDD – VSS are turned off while voltage is still present on LCD power supplies VDD – V5, drivers
(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
DD – VSS) only after making sure that potential of V5 –
V
1 is below the LCD panel threshold voltage level. Refer to the “Supply Circuit” in the Function Description.
*14:When the power save command is entered, you must not implement reset from RES terminal until V
DD – VSS power are turned off.
Refer to the “Power Save” in the Command Description.
• Refresh
It is recommended that the operating modes and display contents be refreshed periodically to prevent the effect of unexpected noise.
Cancel the test mode *15
Refresh sequence
Refresh the DDRAM.
Set every command according to the state being selected
(including setup of the default state).
Notes: *15:Refer to the “Test Mode Cancellation” in the Command Description (21).