SL20T0081 View Datasheet(PDF) - System Logic Semiconductor
Part Name
Description
MFG CO.
'SL20T0081' PDF : 56 Pages View PDF
SLS System Logic Semiconductor
SL20T0081
Table 22. The Relationship between Oscillation Frequency and Frame Frequency
Duty ratio
1/81
1/65
1/55
1/49
1/33
Item
fCL
fFR
On-chip oscillator circuit is
used
On-chip oscillator circuit is
not used
On-chip oscillator circuit is
used
On-chip oscillator circuit is
not used
On-chip oscillator circuit is
used
On-chip oscillator circuit is
not used
On-chip oscillator circuit is
used
On-chip oscillator circuit is
not used
On-chip oscillator circuit is
used
On-chip oscillator circuit is
not used
fOSC = 12.57 kHz
External input ( fCL )
fOSC = 10.90 kHz
External input ( fCL )
fOSC = 9.96 kHz
External input ( fCL )
fOSC = 8.72 kHz
External input ( fCL )
fOSC = 5.82 kHz
External input ( fCL )
fOSC
2 x 2 x 81
fCL
2 x 2 x 81
fOSC
2 x 2 x 65
fCL
2 x 2 x 65
fOSC
2 x 2 x 55
fCL
2 x 2 x 55
fOSC
2 x 2 x 49
fCL
2 x 2 x 49
fOSC
2 x 2 x 33
fCL
2 x 2 x 33
(fosc:oscillation frequency, fCL: display clock frequency, fFR : LCD AC signal frequency)
[*Remark Solves]
*1. Though the wide range of operating voltages is guaranteed, a spike voltage change may affect the voltage
assurance during access from the MPU.
*2. In case of external power supply is applied.
*3. CE1, CE2, RS, D7, to D0, RD(E), WR(R/W), RESET, MS, P68/80, PS, INTRS, HPMB, CLS, CL, SYNC, FR, DISP
pins.
*4. D0 to D7, SYNC, FR, DISP, CL pins.
*5. CE1, CE2, RS, D7 to D0, RD(E), WR(R/W), RESET, MS, P68/80, PS, INTRS, HPMB,CLS, CL, SYNC, FR, DISP
pins.
*6. Applies when the DB[7:0], SYNC, FR, DISP, and CL pins are in high impedance.
*7. Resistance value when Ç0.1[mA] is applied during the ON status of the output pin SEGn or COMn. RON =ÙV / 0.1
[kã] (ÙV : voltage change when Ç0.1[mA] is applied in the IN status.)
*8. See table 22 for the relationship between oscillation frequency and frame frame frequency.
*9. The voltage regulator circuit adjusts V0 within the voltage follower operating voltage range
*10. On-chip reference voltage source of the voltage regulator circuit to adjust V0.
*11,*12. Applies to the case where the on-chip oscillation circuit is used and no access is made from the MPU. The
current consumption, when the built-in power supply circuit is ON or OFF. The current flowing through voltage
regulation resistors (Ra and Rb) is not included. It does not include the current of the LCD panel capacity, wiring
capacity, etc.
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