參數(shù)資料
型號： CY8CLED16P01-28PVXI
廠商： CYPRESS SEMICONDUCTOR CORP
元件分類： 微控制器/微處理器
英文描述： SPECIALTY MICROPROCESSOR CIRCUIT, PDSO28
封裝： 0.210 INCH, LEAD FREE, SSOP-28
文件頁數(shù)： 37/58頁
文件大?。?/td> 837K
代理商： CY8CLED16P01-28PVXI
CY8CLED16P01
Document Number: 001-49263 Rev. *J
Page 42 of 58
10.4.9 AC I2C Specifications
The following table lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V
and -40°C
T
A 85°C. Typical parameters apply to 5V at 25°C and are for design guidance only.
Figure 10-7. Definition for Timing for Fast-/Standard-Mode on the I2C Bus Packaging Dimensions
Table 10-21. AC Characteristics of the I2C SDA and SCL Pins
Symbol
Description
Standard-Mode
Fast-Mode
Units
Notes
Min
Max
Min
Max
FSCLI2C
SCL Clock Frequency
0
100
0
400
kHz
THDSTAI2C
Hold Time (repeated) START Condition. After
this period, the first clock pulse is generated.
4.0
–0.6
–
s
TLOWI2C
LOW Period of the SCL Clock
4.7
–1.3
–
s
THIGHI2C
HIGH Period of the SCL Clock
4.0
–0.6
–
s
TSUSTAI2C
Setup Time for a Repeated START Condition
4.7
–0.6
–
s
THDDATI2C
Data Hold Time
0
–0
–
s
TSUDATI2C
Data Setup Time
250
–100[11]
–ns
TSUSTOI2C
Setup Time for STOP Condition
4.0
–0.6
–
s
TBUFI2C
Bus Free Time Between a STOP and START
Condition
4.7
–1.3
–
s
TSPI2C
Pulse Width of spikes are suppressed by the
input filter
–
0
50
ns
Notes
10. For the full industrial range, the user must employ a temperature sensor user module (FlashTemp) and feed the result to the temperature argument before writing.
Refer to the Flash APIs Application Note AN2015 at http://www.cypress.com for more information.
11. A Fast-Mode I2C-bus device can be used in a Standard-Mode I2C-bus system, but the requirement tSU;DAT 250 ns must then be met. This is automatically the case
if the device does not stretch the LOW period of the SCL signal. If this device does stretch the LOW period of the SCL signal, it must output the next data bit to the
SDA line trmax + tSU;DAT = 1000 + 250 = 1250 ns (according to the Standard-Mode I2C-bus specification) before the SCL line is released.
I2C_SDA
I2C_SCL
S
Sr
S
P
TBUFI2C
TSPI2C
TSUSTOI2C
TSUSTAI2C
TLOWI2C
THIGHI2C
THDDATI2C
THDSTAI2C
TSUDATI2C
START Condition
Repeated START Condition
STOP Condition
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