MB90351ASPMC1 datasheet(69/83 Pages) CYPRESS

69 / 83 page

Document Number: 002-07872 Rev. *A

Page 69 of 83

MB90350 Series

15.4.13 I2C Timing

(MB90F352(S)/MB90F351(S): TA  40 °C to 105 °C, VCC  AVCC  5.0 V  10%, fCP ≤ 24 MHz, VSS  AVSS  0 V)

(MB90F352(S)/MB90F351(S): TA  40 °C to 125 °C, VCC  AVCC  5.0 V  10%, fCP ≤ 16 MHz, VSS  AVSS  0 V)

(Device other than above: TA  40 °C to 125 °C, VCC  AVCC  5.0 V  10%, fCP ≤ 24 MHz, VSS  AVSS  0 V)

*1 : R,C : Pull-up resistor and load capacitor of the SCL and SDA lines.

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

*3 : A Fast-mode I2C -bus device can be used in a Standard-mode I2C-bus system, but the requirement

tSUDAT ≥ 250 ns must then be met.

*4 : For use at over 100 kHz, set the machine clock to at least 6 MHz.

*5 : Refer to “Note of SDA, SCL set-up time”.

Parameter

Symbol

Condition

Standard-mode

Fast-mode*4

Unit

Min

Max

Min

Max

SCL clock frequency

fSCL

 1.7 kΩ,

 50 pF*1

100

400

kHz

Hold time for (repeated) START condition

SDA↓→SCL↓

tHDSTA

4.0

—

0.6

—

μs

“L” width of the SCL clock

tLOW

4.7

—

1.3

—

μs

“H” width of the SCL clock

tHIGH

4.0

—

0.6

—

μs

Set-up time for a repeated START condition

SCL↑→SDA↓

tSUSTA

4.7

—

0.6

—

μs

Data hold time

SCL↓→SDA↓↑

tHDDAT

3.45*2

00.9*3

μs

Data set-up time

SDA↓↑→SCL↑

tSUDAT

250*5

—100*5

—ns

Set-up time for STOP condition

SCL↑→SDA↑

tSUSTO

4.0

—

0.6

—

μs

Bus free time between STOP condition and START

condition

tBUS

4.7

—

1.3

—

μs

SDA

SCL

6 tcp

■ Note of SDA, SCL set-up time

Input data set-up time

MB90351ASPMC1 Datasheet(PDF) 69 Page - Cypress Semiconductor

MB90351ASPMC1 Datasheet(HTML) 69 Page - Cypress Semiconductor

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83

Datasheet Download

Link URL