MB90F337 datasheet(37/48 Pages) FUJITSU

37 / 48 page

MB90335 Series

DS07-13735-6E

(5) I2C timing

(VCC

= 3.3 V ± 0.3 V, VSS = 0.0 V, TA = -40 °C to +85 °C)

*1 : fCP is internal operating clock frequency. Refer to “ (1) Clock input timing”.

*2 : R and C are pull-up resistance of SCL and SDA lines and load capacitance.

*3 : The maximum tHDDAT only has to be met if the device does not stretch the “L” width (tLOW) of the SCL signal.

*4 : Refer to “

• Note of SDA, SCL set-up time”.

Parameter

Symbol

Conditions

Value

Unit

Min

Max

SCL clock frequency

fSCL

Power-supply of external pull-up resistor

at 5.0 V

= 1.2 kΩ, C = 50 pF*2

Power-supply of external pull-up resistor

at 3.6 V

= 1.0 kΩ, C = 50 pF*2

100

kHz

(Repeat) [start] condition hold

time

SDA

↓ → SCL ↓

tHDSTA

4.0

⎯μs

SCL clock “L” width

tLOW

4.7

⎯μs

SCL clock “H” width

tHIGH

4.0

⎯μs

Repeat [start] condition setup time

SCL

↑ → SDA ↓

tSUSTA

4.7

⎯μs

Data hold time

SCL

↓ → SDA ↓ ↑

tHDDAT

03.45*3

μs

Data setup time

SDA

↓ ↑ → SCL ↑

tSUDAT

Power-supply of external pull-up resistor

at 5.0 V

fCP*1

≤ 20 MHz, R = 1.2 kΩ, C = 50 pF*2

Power-supply of external pull-up resistor

at 3.6 V

fCP*1

≤ 20 MHz, R = 1.0 kΩ, C = 50 pF*2

250*4

⎯

Power-supply of external pull-up resistor

at 5.0 V

fCP*1

> 20 MHz, R = 1.2 kΩ, C = 50 pF*2

Power-supply of external pull-up resistor

at 3.6 V

fCP*1

> 20 MHz, R = 1.0 kΩ, C = 50 pF*2

200*4

⎯

[Stop] condition setup time

SCL

↑ → SDA ↑

tSUSTO

Power-supply of external pull-up resistor

at 5.0 V

= 1.2 kΩ, C = 50 pF*2

Power-supply of external pull-up resistor

at 3.6 V

= 1.0 kΩ, C = 50 pF*2

4.0

⎯μs

Bus free time between [stop]

condition and [start] condition

tBUS

4.7

⎯μs

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