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ADE8052Z-EMUL1 Datasheet(PDF) 10 Page - Analog Devices

Part # ADE8052Z-EMUL1
Description  Single-Phase Energy Measurement IC with 8052 MCU, RTC, and LCD Driver
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADE8052Z-EMUL1 Datasheet(HTML) 10 Page - Analog Devices

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ADE7566/ADE7569/ADE7166/ADE7169
Rev. A | Page 10 of 144
TIMING SPECIFICATIONS
AC inputs during testing were driven at VSWOUT − 0.5 V for Logic 1
and 0.45 V for Logic 0. Timing measurements were made at VIH
minimum for Logic 1 and VIL maximum for Logic 0, as shown in
Figure 3.
For timing purposes, a port pin is no longer floating when a
100 mV change from load voltage occurs. A port pin begins to
float when a 100 mV change from the loaded VOH/VOL level
occurs as shown in Figure 3.
CLOAD for all outputs = 80 pF, unless otherwise noted. VDD = 2.7 V
to 3.6 V; all specifications TMIN to TMAX, unless otherwise noted.
VSWOUT – 0.5V
0.45V
0.2VSWOUT + 0.9V
TEST POINTS
0.2VSWOUT – 0.1V
VLOAD – 0.1V
VLOAD
VLOAD + 0.1V
TIMING
REFERENCE
POINTS
VLOAD – 0.1V
VLOAD
VLOAD – 0.1V
Figure 3. Timing Waveform Characteristics
Table 5. Clock Input (External Clock Driven XTAL1) Parameter
32.768 kHz External Crystal
Parameter
Description
Min
Typ
Max
Unit
tCK
XTAL1 period
30.52
μs
tCKL
XTAL1 width low
6.26
μs
tCKH
XTAL1 width high
6.26
μs
tCKR
XTAL1 rise time
9
ns
tCKF
XTAL1 fall time
9
ns
1/tCORE
Core clock frequency
0.032768
1.024
4.096
MHz
1
1 The ADE7566/ADE7569/ADE7166/ADE7169 internal PLL locks onto a multiple (512 times) of the 32.768 kHz external crystal frequency to provide a stable 4.096 MHz
internal clock for the system. The core can operate at this frequency or at a binary submultiple defined by the CD[2:0] bits, selected via the POWCON SFR (see Table 25).
Table 6. I2C-Compatible Interface Timing Parameters (400 kHz)
Parameter
Description
Typ
Unit
tBUF
Bus-free time between stop condition and start condition
1.3
μs
tL
SCLK low pulse width
1.36
μs
tH
SCLK high pulse width
1.14
μs
tSHD
Start condition hold time
251.35
μs
tDSU
Data setup time
740
ns
tDHD
Data hold time
400
ns
tRSU
Setup time for repeated start
12.5
ns
tPSU
Stop condition setup time
400
ns
tR
Rise time of both SCLK and SDATA
200
ns
tF
Fall time of both SCLK and SDATA
300
ns
tSUP
Pulse width of spike suppressed
50
ns
1
1 Input filtering on both the SCLK and SDATA inputs suppresses noise spikes less than 50 ns.
MSB
tBUF
SDATA (I/O)
SCLK (I)
STOP
CONDITION
START
CONDITION
REPEATED
START
LSB
ACK
MSB
1
2TO 7
89
1
S(R)
PS
tPSU
tDSU
tSHD
tDHD
tSUP
tDSU
tDHD
tH
tSUP
tL
tRSU
tR
tR
tF
tF
Figure 4. I2C-Compatible Interface Timing


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