ade7854 Analog Devices, Inc., ade7854 Datasheet - Page 7

• Manufacturer Part Number: ade7854
• Description: Poly Phase Multifunction Energy Metering Ic With Neutral Current Measurement
• Manufacturer: Analog Devices, Inc.

Preliminary Technical Data
TIMING CHARACTERISTICS
VDD = 3.3 V ± 10%, AGND = DGND = 0 V, on-chip reference, CLKIN = 16.384 MHz , T
Table 2. I
Parameter
SCL clock frequency
Hold time (repeated) START condition.
LOW period of SCL clock
HIGH period of SCL clock
Set-up time for a repeated START condition
Data hold time
Data setup time
Rise time of both SDA and SCL signals
Fall time of both SDA and SCL signals
Setup time for STOP condition
Bus free time between a STOP and START condition
Pulse width of suppressed spikes
SCLK
SDA
t
CONDITION
f
2
START
C Compatible Interface Timing Parameter
t
HD;STA
t
LOW
t
HD;DAT
t
r
t
SU;DAT
t
HIGH
Figure 2. I
t
f
2
Rev. PrC| Page 7 of 71
C Compatible Interface Timing
t
SU;STA
REPEATED START
CONDITION
Symbol
f
t
t
t
t
t
t
t
t
t
t
t
SCL
HD;STA
LOW
HIGH
SU;STA
HD;DAT
SU;DAT
r
f
SU;STO
BUF
SP
t
HD;STA
Min
0
4.0
4.7
4.0
4.7
0
250
4.0
4.7
na
MIN
Standard mode
to T
MAX
Max
100
3.45
1000
300
= −40°C to +85°C.
t
SP
t
SU;STO
CONDITION
Min
0
0.6
1.3
0.6
0.6
0
100
20
20
0.6
1.3
t
r
STOP
Fast Mode
t
BUF
Max
400
0.9
300
300
50
ADE7854
CONDITION
START
Unit
kHz
μs
μs
μs
μs
μs
ns
ns
ns
μs
μs
ns