ADE7878 datasheet(8/92 Pages) AD

Il numero della parte	ADE7878

Spiegazioni elettronici	Polyphase Multifunction Energy Metering IC with per Phase Active and Reactive Powers

PDF	92 Pages

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Produttore elettronici	AD [Analog Devices]

Homepage	http://www.analog.com

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ADE7878

Rev. 0 | Page 8 of 92

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

100

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 Repeated Start Condition

tSU;STA

4.7

0.6

μs

Data Hold Time

tHD;DAT

3.45

0.9

μs

Data Setup Time

tSU;DAT

250

100

Rise Time of Both SDA and SCL Signals

1000

300

Fall Time of Both SDA and SCL Signals

300

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

N/A1

1 N/A means not applicable.

tHD;DAT

tHD;STA

tHIGH

tSU;STA

tSU;DAT

tHD;STA

tSP

tSU;STO

tBUF

tLOW

SDA

SCLK

START

CONDITION

REPEATED START

CONDITION

STOP

CONDITION

START

CONDITION

Figure 2. I2C-Compatible Interface Timing

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