Single-Phase Energy Measurement IC with
8052 MCU, RTC, and LCD Driver
ADE7566/ADE7569/ADE7166/ADE7169
GENERAL FEATURES
MICROPROCESSOR FEATURES
Wide supply voltage operation: 2.4 V to 3.7 V
8052-based core
Internal bipolar switch between regulated and battery inputs
Ultralow power operation with power-saving modes (PSM)
Full operation: 4 mA to 1.6 mA (PLL clock dependent)
Battery mode: 3.2 mA to 400 μA (PLL clock dependent)
Sleep mode
Single-cycle 4 MIPS 8052 core
8052-compatible instruction set
32.768 kHz external crystal with on-chip PLL
Two external interrupt sources
External reset pin
Real-time clock (RTC) mode: 1.5 μA
Low power battery mode
RTC and LCD mode: 27 μA (LCD charge pump enabled)
Reference: 1.2 V 0.1% (10 ppm/°C drift)
64-lead RoHS package options
Wake-up from I/O, temperature change, alarm, and
universal asynchronous receiver/transmitter (UART)
LCD driver operation
Lead frame chip scale package (LFCSP)
Temperature measurement
Low profile quad flat package (LQFP)
Real-time clock
Operating temperature range: −40°C to +85°C
Counter for seconds, minutes, and hours
Automatic battery switchover for RTC backup
Operation down to 2.4 V
ENERGY MEASUREMENT FEATURES
Proprietary analog-to-digital converters (ADCs) and digital
signal processing (DSP) provide high accuracy active
(Watt), reactive (VAR), and apparent energy (VA)
measurement
Less than 0.1% error on active energy over a dynamic
range of 1000 to 1 @ 25°C
Less than 0.5% error on reactive energy over a dynamic
range of 1000 to 1 @ 25°C (ADE7569 and ADE7169 only)
Less than 0.5% error on root mean square (rms)
measurements over a dynamic range of 500 to 1 for
current (Irms) and 100 to 1 for voltage (Vrms) @ 25°C
Supports IEC 62053-21, IEC 62053-22, IEC 62053-23,
EN 50470-3 Class A, Class B, and Class C, and ANSI C12-16
Differential input with programmable gain amplifiers (PGAs)
supports shunts, current transformers, and di/dt current
sensors (ADE7569 and ADE7169 only)
Ultralow battery supply current: 1.5 μA
Selectable output frequency: 1 Hz to 16.384 kHz
Embedded digital crystal frequency compensation for
calibration and temperature variation 2 ppm resolution
Integrated LCD driver
108-segment driver for the ADE7566/ADE7569 and
104-segment driver for the ADE7166/ADE7169
2×, 3×, or 4× multiplexing
LCD voltages generated internally or with external resistors
Internal adjustable drive voltages up to 5 V independent
of power supply level
On-chip peripherals
UART, SPI or I2C, and watchdog timer
Power supply monitoring with user-selectable levels
Memory: 16 kB flash memory, 512 bytes RAM
Development tools
Two current inputs for antitamper detection in the
ADE7166/ADE7169
Single-pin emulation
IDE-based assembly and C-source debugging
High frequency outputs proportional to Irms, active, reactive,
or apparent power (AP)
Table 1.
Anti-
Tamper
Watt, VA,
rms, Vrms
Part No.
I
VAR
No
Yes
No
di/dt Sensor
ADE7566 No
ADE7569 No
ADE7166 Yes
ADE7169 Yes
Yes
Yes
Yes
Yes
No
Yes
No
Yes
Yes
Rev. A
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