M35074 Datasheet, PDF (29/44 Pages) Renesas Technology Corp – SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS

MITSUBISHI MICROCOMPUTERS
M35074-XXXSP
SCREEN CHARACTER and PATTERN DISPLAY CONTROLLERS
(3) TIMING REQUIREMENTS
Data input
Symbol
Parameter
fCLK
tHIGH
tLOW
tR
Clock frequency
HIGH period of Clock
LOW period of Clock
SDA & SCL rise time
tF
tHD : STA
tSU : STA
tHD : DAT
tSU : DAT
tSU : STO
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
tBUF
Bus release time
Limits
Typ. mode
High-speed mode
Min.
Max.
Min.
Max.
0
100
0
400
4000
–
600
–
4700
–
1300
–
20+(Note)
–
1000
300
0.1CB
–
4000
20+(Note)
300
300
0.1CB
–
600
–
4700
–
600
–
0
–
0
–
250
–
100
–
4000
–
600
–
4700
–
1300
–
tSP
Input filter / spike suppress (SDA & SCL pin)
N/A
N/A
0
50
Note: CB = total capacitance of 1 bus line.
Unit
Remarks
KHz
ns
ns
ns
ns
ns
Only at START state
ns
repeating generation
ns
ns
ns
Time must be re-
ns
leased bus before
next transmission
ns
SCL
SDA
tF
tHIGH
tLOW
tsu : STA
tSP
tHD : STA
tHD : DAT
tSU : DAT
Fig.16 Data input timing
tR
tSU : STO
tBUF
28