ADE5166 datasheet(4/156 Pages) AD

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ADE5166/ADE5169/ADE5566/ADE5569

Rev. B | Page 4 of 156

GENERAL DESCRIPTION

The ADE5166/ADE5169/ADE5566/ADE55691 integrate the

Analog Devices, Inc., energy (ADE) metering IC analog front

end and fixed function DSP solution with an enhanced 8052 MCU

core, a full RTC, an LCD driver, and all the peripherals to make

an electronic energy meter with an LCD display in a single part.

The ADE measurement core includes active, reactive, and apparent

energy calculations, as well as voltage and current rms measure-

ments. This information is accessible for energy billing by using the

built-in energy scalars. Many power line supervisory features such

as SAG, peak, and zero crossing are included in the energy

measurement DSP to simplify energy meter design.

The microprocessor functionality includes a single-cycle 8052 core,

a full RTC with a power supply backup pin, an SPI or I2C interface,

and two independent UART interfaces. The ready-to-use infor-

mation from the ADE core reduces the requirement for program

memory size, making it easy to integrate complicated design into

62 kB of flash memory.

The ADE5166/ADE5169 include a 104-segment LCD driver and

the ADE5566/ADE5569 include a 108-segment LCD driver, each

with the capability to store up to four LCD screens in memory. This

driver generates voltages capable of driving LCDs up to 5 V.

1 Patents pending.

FUNCTIONAL BLOCK DIAGRAMS

IPA

ENERGY

MEASUREMENT

DSP

OSC

COM0

...

COM3

3V/5V LCD

CHARGE PUMP

SINGLE

CYCLE

8052

MCU

ADE5166/ADE5169

VBAT

DGND

AGND

LCDVA

LCDVB

LCDVC

FP0

FP15

RTC

LCDVP1

LCDVP2

FP16

FP17

FP23

FP22

FP21

FP20

FP19

FP18

FP25

FP24

1.20V

REF

IPB 55

FP28

FP27

43 42

39 38 7

45 11 43 42 41 40 39 38

37 36 5

9 10

38 39 40 41

PGA2

–

PGA1

–

PGA1

–

ADC

TEMP

ADC

VSW

ADC

PROGRAM MEMORY

62kB FLASH

POWER SUPPLY

CONTROL AND

MONITORING

USER RAM

256 BYTES

USER XRAM

2kB

TEMP

SENSOR

BATTERY

ADC

SPI/I2C

SERIAL

INTERFACE

3 × 16-BIT

COUNTER

TIMERS

104-SEGMENT

LCD DRIVER

WATCHDOG

TIMER

PLL

LDO

UART

SERIAL

PORT

UART2

SERIAL

PORT

UART2

TIMER

DOWNLOADER

DEBUGGER

LDO

UART

TIMER

POR

P2.0/FP18

P2.1/FP17

P2.2/FP16

P2.3 (SDEN/P2.3/TxD2)

Figure 1. ADE5166/ADE5169 Functional Block Diagram

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