ra8806 RAIO Technology Inc., ra8806 Datasheet - Page 118
ra8806
Manufacturer Part Number
ra8806
Description
Two Layers Character/graphic Lcd Controller
Manufacturer
RAIO Technology Inc.
Datasheet
1.RA8806.pdf
(184 pages)
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Preliminary Version 1.2
RAiO
8-3
Latch Pulse “H” Pulse Width
Latch Pulse “H” Pulse Width
Figure 8-1 is timing characteristic waveform and parameters for RA8806 driver interface signal.
Shift Clock “H” Pulse Width
Shift Clock “H” Pulse Width
Shift Clock “L” Pulse Width
Shift Clock “L” Pulse Width
TECHNOLOGY INC.
XD[7:0]
XD[7:0]
Shift Clock Rise to Latch
Shift Clock Rise to Latch
Latch Clock Rise to Shift
Latch Clock Rise to Shift
Latch Clock Rise to Shift
Latch Clock Rise to Shift
Shift Clock Fall to Latch
Shift Clock Fall to Latch
Note :
1. Tsys : system clock period(i.e. System clock = 12MHz, Tsys = 83.3ns)
2.The period also depends on the setting of register ITCR.
XCK
XCK
XCK
Shift Clock period
Shift Clock period
Data Setup Time
Data Setup Time
Pulse Rise Time
Pulse Rise Time
Pulse Rise Time
Pulse Rise Time
Pulse Rise Time
Pulse Rise Time
Timing Characteristic Wavaform
D : Driver clock selection(REG[01h] B3-2)
Data Hold Time
Data Hold Time
Pulse Fall Time
Pulse Fall Time
LP
LP
LP
Parameter
Parameter
0 0 : XCK = CLK/8
0 1 : XCK = CLK/4(initial value)
1 0 : XCK = CLK/2
1 1 : XCK = CLK
t
t
LD
LD
Figure 8-1 : Timing Characteristic Waveform
Symbol
Symbol
t
t
WLPH
WLPH
t
t
t
t
t
t
t
t
WCKH
WCKH
WCKL
WCKL
WLPH
WLPH
LAST DATA
LAST DATA
WCK
WCK
t
t
t
t
t
t
t
t
t
t
t
t
DS
DS
DH
DH
LD
LD
SL
SL
LS
LS
LH
LH
t
t
SL
SL
ITCR
ITCR
Table 8-3: Parameters
t
t
condition
condition
LS
LS
118/184
t
t
WCKH
WCKH
t
t
LH
LH
t
t
t
t
t
t
t
t
t
t
t
t
WCK
WCK
WCK
WCK
WCK
WCK
WCK
WCK
WCK
WCK
WCK
WCK
Two Layers Character/Graphic LCD Controller
t
t
WCK
WCK
t
t
WCK
WCK
Min.
Min.
/2 -10
/2 -10
/2 -10
/2 -10
/2 -30
/2 -30
/2 -10
/2 -10
/2 -10
/2 -10
/2 -10
/2 -10
0
0
-10
-10
/2
/2
t
t
WCKH
WCKH
t
t
DS
DS
TOP DATA
TOP DATA
t
t
T
T
WCK
WCK
Typ.
Typ.
sys
sys
/D
/D
t
t
WCKL
WCKL
t
t
DH
DH
t
t
t
t
t
t
t
t
WCK
WCK
WCK
WCK
WCK
WCK
WCK
WCK
t
t
WCK
WCK
t
t
Max.
Max.
WCK
WCK
/2 +10
/2 +10
/2 +10
/2 +10
/2 +30
/2 +30
/2 +10
/2 +10
+10
+10
/2
/2
www.raio.com.tw
Unit
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
RA8806
Note
Note
*1
*1
*2
*2
*2
*2
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