ra8835 Topway Display, ra8835 Datasheet - Page 81

• Manufacturer Part Number: ra8835
• Description: Dot Matrix Lcd Controller
• Manufacturer: Topway Display

RAiO TECHNOLOGY INC.
Version 1.7
VA0 to VA15
VD0 to VD7
10-3-3 Display Memory Read Timing
EXT￠0
VR / W
VCE
EXT Φ0
Signal
VD0 to
VA0 to
VA15
VCE
VRD
VD7
Symbol
t
t
t
t
t
t
t
t
t
t
RCH
CYR
ASC
AHC
RCS
ACV
CEA
OH2
CE3
t
t
CE
W
C
t
t
C
W
Clock period
pulse width
pulse width
Read cycle time
Address setup time
to falling edge of
Address hold time
from falling edge of
Read cycle setup
time to falling edge
of
Read cycle hold time
from rising edge of
Address access time
Output data hold
time
time
VCE
VCE
VCE
VCE
VCE
VCE
VCE
t
t
ASC
RCS
VCE
Parameter
t
ACV
HIGH-level
LOW-level
access time
to data off
t
CEA
81/86
t
CYR
2 t
2t
V
t
t
t
C
C
C
0.5t
Min.
t
t
DD
100
C
CE
AHC
C
3t
– 70
—
—
– 50
– 45
0
0
– 30
– 30
C
= 4.5 to 5.5V
C
3t
2t
Max.
C
C
—
—
—
—
—
—
—
—
—
—
– 100
– 80
2 t
t
2t
V
t
t
C
t
CE3
C
C
DD
Min.
0.5t
125
C
C
– 100
3t
—
—
– 50
– 60
0
0
– 40
– 30
C
= 2.7 to 4.5V
C
Dot Matrix LCD Controller
3t
2t
C
Max.
C
t
t
RCH
W
– 115
—
—
—
—
—
—
—
—
—
—
– 90
t
OH2
www.raio.com.tw
Unit
Ns
Ns
Ta = –20 to 75℃
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
RA8835
Condition
CL = 100
pF