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ADE7858ACPZ Fiches technique(PDF) 7 Page - Analog Devices

No de pièce ADE7858ACPZ
Description  Poly Phase Multifunction Energy Metering IC with per Phase Active and Reactive Powers
PDF  76 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
Logo AD - Analog Devices

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Preliminary Technical Data
ADE7858
Rev. PrA | Page 7 of 76
TIMING CHARACTERISTICS
VDD = 3.3 V ± 10%, AGND = DGND = 0 V, on-chip reference, CLKIN = 16.384 MHz , TMIN to TMAX = −40°C to +85°C.
Table 2. I2C Compatible Interface Timing Parameter
Standard mode
Fast Mode
Parameter
Symbol
Min
Max
Min
Max
Unit
SCL clock frequency
fSCL
0
100
0
400
kHz
Hold time (repeated) START condition.
tHD;STA
4.0
0.6
μs
LOW period of SCL clock
tLOW
4.7
1.3
μs
HIGH period of SCL clock
tHIGH
4.0
0.6
μs
Set-up time for a repeated START condition
tSU;STA
4.7
0.6
μs
Data hold time
tHD;DAT
0
3.45
0
0.9
μs
Data setup time
tSU;DAT
250
100
ns
Rise time of both SDA and SCL signals
tr
1000
20
300
ns
Fall time of both SDA and SCL signals
tf
300
20
300
ns
Setup time for STOP condition
tSU;STO
4.0
0.6
μs
Bus free time between a STOP and START condition
tBUF
4.7
1.3
μs
Pulse width of suppressed spikes
tSP
na
50
ns
SDA
SCLK
t
f
START
CONDITION
START
CONDITION
STOP
CONDITION
t
LOW
t
r
t
SU;DAT
t
f
t
HD;STA
t
BUF
t
r
t
SU;STO
t
SU;STA
t
HIGH
t
HD;DAT
t
HD;STA
REPEATED START
CONDITION
t
SP
Figure 2. I2C Compatible Interface Timing



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