ml675050 Oki Semiconductor, ml675050 Datasheet - Page 54

• Manufacturer Part Number: ml675050
• Description: Arm7tdmi Based Micro-controller For Ic Card Reader/writer
• Manufacturer: Oki Semiconductor

ELECTRICAL CHARACTERISTICS (AC CHARACTERISTICS)
(19) I
OKI Semiconductor
Parameter
I2C_SCL clock frequency
I2C_SCL clock “L” period
I2C_SCL clock “H” period
(Repetitive) “START” condition hold time After
this period, the first clock pulse is generated.
Repetitive “START” condition setup time
Data hold time
Data setup time
“STOP” condition setup time
Parameter
I2C_SCL clock frequency
I2C_SCL clock “L” period
I2C_SCL clock “H” period
(Repetitive) “START” condition hold time. After
this period, the first clock pulse is generated.
Repetitive “START” condition setup time
Data hold time
Data setup time
“STOP” condition setup time
I2C SDA
2
I2C_SCL
C Access Timing
Standard Mode
Fast Mode
*1: Although a fast-mode I
condition “tSU: DAT 250 ns” should be satisfied. This means that the device is in the state in which
it does not extend the “L” period of the I2C_SCL signal.
If a certain device does not extend the “L” period of the I2C_SCL signal, it should output the next data
to the I2C_SDA line 1250 ns (for the next data bit in the standard mode, according to the I
specification) before the I2C_SCL line is released (1250 ns = trmax + t
I
2
C cycle
S
t
HD:STA
t
LOW
2
C bus device can be utilized in the standard I
t
HD:DAT
t
SU:DAT
t
Symbol
f
f
f
t
t
t
t
t
HIGH
Symbol
f
t
t
t
t
t
t
t
SCL
LOW
HIGH
HD:STA
SU:STA
HD:DAT
SU:DAT
SU:STO
SCL
LOW
HIGH
HD:STA
SU:STA
HD:DAT
SU:DAT
SU:STO
Condition
CL=400pF
Condition
CL=400pF
t
SU:STA
Min.
4.7
4.0
4.0
4.7
5.0
250
4.0
Min.
1.3
0.6
0.6
0.6
400
0.6
Sr
(*1)
t
HD:STA
SU: DAT
2
C bus system, the required
Typ.
Typ.
= 1000 + 250).
Max.
100
Max.
400
FEDL675050-02
t
SU:STO
ML675050
Unit
kHz
us
us
us
us
us
us
us
Unit
kHz
us
us
us
us
us
us
us
2
C Bus
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