ADE7566ASTZF8 Analog Devices Inc, ADE7566ASTZF8 Datasheet - Page 65

• Manufacturer Part Number: ADE7566ASTZF8
• Description: IC ENERGY METER MCU 8K 64LQFP
• Manufacturer: Analog Devices Inc

Specifications of ADE7566ASTZF8

• Applications: Energy Measurement
• Core Processor: 8052
• Program Memory Type: FLASH (8 kB)
• Controller Series: ADE75xx
• Ram Size: 512 x 8
• Interface: I²C, SPI, UART
• Number Of I /o: 20
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LQFP
• Ic Function: Single Phase Energy Measurement IC
• Supply Voltage Range: 3.13V To 3.46V, 2.4V To 3.7V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: LQFP
• No. Of Pins: 64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Preliminary Technical Data
TEMPERATURE, BATTERY, AND SUPPLY VOLTAGE MEASUREMENTS
The ADE7566/ADE7569 include temperature measurements as
well as battery and supply voltage measurements. These measure-
ments enable many forms of compensation. The temperature and
supply voltage measurements can be used to compensate external
circuitry. The RTC can be calibrated over temperature to ensure
that it does not drift. Supply voltage measurements allow the LCD
contrast to be maintained despite variations in voltage. Battery
measurements allow low battery detection to be performed.
Table 44. Temperature, Battery, and Supply Voltage Measurement SFRs
SFR Address
0xF9
0xF3
0xD8
0xFA
0xEF
0xDF
0xD7
Table 45. Peripheral ADC Strobe Period SFR (STRBPER, 0xF9)
Bit No.
7 to 6
5 to 4
3 to 2
1 to 0
1
The strobing option only works when the RTCEN bit in RTC Configuration SFR (TIMECON, 0xA1) is set.
Mnemonic
Reserved
VDCIN_PERIOD[1:0]
BATT_PERIOD[1:0]
TEMP_PERIOD[1:0]
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
ADCGO
Name
STRBPER
DIFFPROG
BATVTH
VDCINADC
BATADC
TEMPADC
Default
–
0
0
0
Strobing Period Configuration (see Table 45).
ADC Start Configuration (see Table 47).
Temperature ADC Value (see Table 51).
Description
Temperature and Supply Delta Configuration (see Table 46).
Battery Threshold Configuration (see Table 48).
V
Battery ADC Value (see Table 50).
DCIN
ADC Value (see Table 49).
Rev. PrA | Page 65 of 136
Description
Reserved.
Period for background external voltage measurements.
VDCIN_PERIOD[1:0]
00
01
10
11
Period for background battery level measurements.
BATT_PERIOD[1:0]
00
01
10
11
Period for background temperature measurements.
TEMP_PERIOD[1:0]
00
01
10
11
1
All ADC measurements are configured through the SFRs
detailed in Table 44.
The temperature, battery, and supply voltage measurements can
be configured to continue functioning in PSM1 and PSM2. This
is done by setting Bit RTCEN in the RTC Configuration SFR
(TIMECON, 0xA1). Keeping the temperature measurement
active ensures that it is not necessary to wait for the temperature
measurement to settle before using it for compensation.
Result
No V
8 min
2 min
1 min
Result
No battery measurement
16 min
4 min
1 min
Result
No temperature measurements
8 min
2 min
1 min
DCIN
measurement
ADE7566/ADE7569