71M6521FE-IM/F Maxim Integrated Products, 71M6521FE-IM/F Datasheet

71M6521FE-IM/F

Manufacturer Part Number

71M6521FE-IM/F

Description

IC ENERGY METER 32K FLASH 68-QFN

Manufacturer

Maxim Integrated Products

Datasheets

1.71M6521DE-IMRF.pdf (107 pages)

2.71M6521FE-IMF.pdf (107 pages)

Specifications of 71M6521FE-IM/F

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

71M6521FE-IM/F

Manufacturer:

MAXIM

Quantity:

2 000

Current page: 1 of 107
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GENERAL DESCRIPTION

The Teridian™ 71M6521DE/DH/FE energy meter ICs are highly integrated

systems-on-a-chip (SoCs) with an MPU core, RTC, flash, and LCD driver.

The Single Converter Technology® with a 22-bit delta-sigma ADC, four

analog inputs, digital temperature compensation, precision voltage

reference, battery voltage monitor, and 32-bit computation engine (CE)

supports a wide range of residential metering applications with very few

low-cost external components. A 32kHz crystal time base for the entire

system and internal battery-backup support for RAM and RTC further

reduce system cost. The ICs support 2-wire, 3-wire, and 4-wire single-

phase and dual-phase residential metering along with tamper-detection

mechanisms.

Maximum design flexibility is provided by multiple UARTs, I

MICROWIRE®, up to 18 DIO pins, and in-system programmable flash

memory, which can be updated with data or application code in operation.

A complete array of ICE and development tools, programming libraries, and

reference designs enable rapid development and certification of TOU,

AMR, and prepay meters that comply with worldwide electricity metering

standards.

Rev 2

Teridian is a trademark and Single Converter Technology is a registered

trademark of Maxim Integrated Products Inc.

MICROWIRE is a registered trademark of National Semiconductor Corp.

NEUT

32 kHz

CT/SHUNT

POWER

FAULT

AMR

RX/DIO1

TX/DIO2

COMPARATOR

SERIAL PORTS

VOLTAGE REF

XIN

XOUT

V A

CONVERTER

VREF

VBIAS

DRIVE/MOD

LOAD

OSC/PLL

SENSE

TERIDIAN

71M6521

COMPUTE

POWER SUPPLY

SENSOR

ENGINE

TIMERS

FLASH

V3.3A

MPU

ICE

TEMP

RAM

RTC

V3.3

SYS

GNDA GNDD

REGULATOR

PWR MODE

DIO, PULSE

SEG 24..31/

SEG 34..37/

CONTROL

WAKE-UP

DIO 14..17

SEG 32,33,

SEG0..18

DIO 4..11

COM0..3

VBAT

V2.5

07/25/2007

ICE_E

38/ICE

BATTERY

88.88.8888

TEST PULSES

IIC or uWire

EEPROM

3.3V LCD

V3P3D

GNDD

FEATURES

• Up to 0.1% Wh Accuracy Over 2000:1 Current

• Exceeds IEC 62053/ANSI C 12.20 Standards

• Voltage Reference < 40 ppm/°C (< 20ppm/°C for

• Four Sensor Inputs—V

• Low-Jitter Wh and VARh Pulse Test Outputs

• Pulse Count for Pulse Outputs

• Four-Quadrant Metering

• Tamper Detection

• Line Frequency Count for RTC

• Digital Temperature Compensation

• Sag Detection for Phase A and B

• Independent 32-Bit Compute Engine

• 46-64Hz Line Frequency Range with Same

• Phase Compensation (±7°)

• Battery backup for RTC and battery monitor

• Three Battery Modes with Wake-Up on Pushbutton

• Energy Display on Main Power Failure

• Wake-Up with Pushbutton

• 22-Bit Delta-Sigma ADC

• 8-Bit MPU (80515), 1 Clock Cycle per Instruction

• RTC with Temperature Compensation

• Auto-Calibration

• Hardware Watchdog Timer, Power-Fail Monitor

• LCD Driver (Up to 152 Pixels)

• Up to 18 General-Purpose I/O Pins

• 32kHz Time Base

• 16KB (6521DE/DH) or 32KB (6521FE) Flash with

• 2KB MPU XRAM

• Two UARTs for IR and AMR

• Digital I/O Pins Compatible with 5V Inputs

• 64-Pin LQFP or 68-Pin QFN Package

•

Range

Lead(Pb)-Free Packages

71M6521DH)

(10kHz max)

Calibration

or Timer:

with Integrated ICE for MPU Debug

Security

Neutral Current with CT or Shunt

Brownout Mode (48µA)

LCD Mode (5.7µA)

Sleep Mode (2.9µA)

71M6521DE/DH/FE

Energy Meter ICs

19-5370; Rev 2; 11/11

Referenced

DATA SHEET

Page: 1 of 107

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