參數(shù)資料
型號(hào): ADT7408CCPZ2-R2
廠商: ANALOG DEVICES INC
元件分類: 溫度/濕度傳感器
英文描述: DIGITAL TEMP SENSOR-SERIAL, 12BIT(s), 4Cel, SQUARE, SURFACE MOUNT
封裝: 3 X 3 MM, MO-229VEED-4, LFCSP-8
文件頁(yè)數(shù): 16/22頁(yè)
文件大?。?/td> 570K
代理商: ADT7408CCPZ2-R2
Preliminary Technical Data
ADT7408
Rev. PrC | Page 3 of 22
TIMING CHARACTERISTICS
Guaranteed by design and characterization, not production tested. The SDA & SCL timing is measured with the input filters turned on so
as to meet the Fast-Mode I2C specification. Switching off the input filters improves the transfer rate but has a negative affect on the EMC
behavior of the part.
TA = 20°C to +125°C, VDD = 3.0 V to 3.6 V, unless otherwise noted
.
Table 2.
Parameter
Symbol
MIN
TYP
MAX
Units
Comments
SCL Clock Frequency
fSCL
10
100
kHz
Bus Free Time between a STOP (P) and START (S)
condition
tBUF
4.7
s
Hold Time after (Repeated) START condition. After
this period, the first clock is generated
tHD:STA
4.0
s
Repeated Start Condition Setup Time
tSU:STA
4.7
s
High Period of the SCL Clock
tHIGH
4.0
50
s
Low Period of the SCL Clock
tLOW
4.7
s
Fall Time of Both SDA and SCL Signals
tF
300
ns
Rise Time of Both SDA and SCL Signals
tR
1000
ns
Data Setup Time
tSU;DAT
250
ns
Data Hold Time
tHD;DAT
300
ns
Setup Time for STOP Condition
tSU;STO
4.0
s
Capacitive Load for each Bus Line, CB
400
pF
Figure 2. SMBus/I2C Timing Diagram
SCL
SDA
P
S
P
tBUF
tLOW
tHIGH
tHD:STA
tR
t
F
tSU:DA
T
tSU:STA
tSU:STO
03224-028
VIL
VIH
VIL
VIH
S
tHD:DAT
tR
tF
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