
ST7735R
V0.2
21
2009-08-05
8
Timing chart
8.1 Parallel interface characteristics: 18, 16, 9 or 8-bit bus (8080 series MCU interface)
Figure 8.1.1 Parallel interface timing characteristics (8080 series MCU interface)
Ta=25
℃
, VDDI=1.65~3.7V, VDD=2.3~4.8V
Signal
Symbol
Parameter
Min
Max
Unit
Description
TAST
Address setup time
10
ns
D/CX
TAHT
Address hold time (Write/Read)
10
ns
-
TCHW
Chip select “H” pulse width
0
ns
TCS
Chip select setup time (Write)
15
ns
TRCS
Chip select setup time (Read ID)
45
ns
TRCSFM
Chip select setup time (Read FM)
355
ns
TCSF
Chip select wait time (Write/Read)
10
ns
CSX
TCSH
Chip select hold time
10
ns
-
TWC
Write cycle
66
ns
TWRH
Control pulse “H” duration
15
ns
WRX
TWRL
Control pulse “L” duration
15
ns
TRC
Read cycle (ID)
160
ns
TRDH
Control pulse “H” duration (ID)
90
ns
RDX (ID)
TRDL
Control pulse “L” duration (ID)
45
ns
When read ID data
TRCFM
Read cycle (FM)
450
ns
TRDHFM
Control pulse “H” duration (FM)
90
ns
RDX (FM)
TRDLFM
Control pulse “L” duration (FM)
355
ns
When read from frame
memory
TDST
Data setup time
10
ns
TDHT
Data hold time
10
ns
TRAT
Read access time (ID)
40
ns
TRATFM
Read access time (FM)
340
ns
D[17:0]
TODH
Output disable time
20
80
ns
For CL=30pF
Table 8.1.1 8080 parallel Interface Characteristics
Summary of Contents for ST7735R
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