m35047 Renesas Electronics Corporation., m35047 Datasheet - Page 33

• Manufacturer Part Number: m35047
• Description: Screen Character And Pattern Display Controllers
• Manufacturer: Renesas Electronics Corporation.

TIMING REQUIREMENTS
Data input
Note. CB = total capacitance of 1 bus line.
Fig.25 Data input timing
32
f
t
t
t
t
t
t
t
t
t
t
t
CLK
HIGH
LOW
R
F
HD
SU
HD
SU
SU
BUF
SP
Symbol
: STA
: DAT
: STO
: STA
: DAT
SDA
SCL
Clock frequency
HIGH period of Clock
LOW period of Clock
SDA & SCL rise time
SDA & SCL fall time
Hold time at START status
Set up time at START status
Data input hold time
Data input setup time
Set up time at STOP state
Bus release time
Input filter / spike suppress (SDA & SCL pin)
tsu :
STA
t
SP
Parameter
t
F
t
HD
:
STA
t
t
HIGH
HD
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
:
DAT
4000
4700
4000
4700
4000
4700
Min.
250
N/A
0
–
–
0
Typ. mode
t
LOW
Max.
1000
100
300
N/A
–
–
–
–
–
–
–
–
t
Limits
SU
:
20+
20+
DAT
0.1C
0.1C
High-speed mode
1300
1300
Min.
600
600
600
100
600
(Note)
(Note)
0
0
0
B
B
MITSUBISHI MICROCOMPUTERS
M35047-XXXSP/FP
Max.
400
300
300
50
–
–
–
–
–
–
–
–
t
R
KHz
Unit
t
SU
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
:
t
STO
BUF
Only at START state
repeating generation
Time must be re-
leased bus before
next transmission
Remarks