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参数资料
| 型号： | 71M6541F-IGTR/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 11/166页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER SGL PHSE 64LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 系列： | Single Converter Technology® |
| 输入阻抗： | 40 千欧 ~ 90 千欧 |
| 测量误差： | 0.5% |
| 电压 - 高输入/输出： | 2V |
| 电压 - 低输入/输出： | 0.8V |
| 电流 - 电源： | 4mA |
| 电源电压： | 3 V ~ 3.6 V |
| 测量仪表类型： | 单相 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-LQFP |
| 供应商设备封装： | 64-LQFP（10x10） |
| 包装： | 标准包装 |
| 其它名称： | 71M6541F-IGTR/FDKR |
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71M6541D/F/G and 71M6542F/G Data Sheet
2
2.1
Hardware Description
Hardware Overview
The 71M6541D/F/G and 71M6542F/G single-chip energy meter ICs integrate all primary functional blocks
required to implement a solid-state residential electricity meter. Included on the chip are:
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An analog front end (AFE) featuring a 22-bit second-order sigma-delta ADC
An independent 32-bit digital computation engine (CE) to implement DSP functions
An 8051-compatible microprocessor (MPU) which executes one instruction per clock cycle (80515)
A precision voltage reference (VREF)
A temperature sensor for digital temperature compensation:
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Metrology digital temperature compensation (MPU)
Automatic RTC digital temperature compensation operational in all power states
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LCD drivers
RAM and Flash memory
A real time clock (RTC)
A variety of I/O pins
A power failure interrupt
A zero-crossing interrupt
Selectable current sensor interfaces for locally-connected sensors as well as isolated sensors (i.e.,
using the 71M6x01 companion IC with a shunt resistor sensor)
Resistive Shunt and Current Transformers are supported
Resistive Shunts and Current Transformers (CT) current sensors are supported. Resistive shunt current
sensors may be connected directly to the 71M654x device or isolated using a companion 71M6x01
isolator IC in order to implement a variety of single-phase / split-phase (71M6541D/F) or two-phase
(71M6542F/G) metering configurations. An inexpensive, small size pulse transformer is used to isolate
the 71M6x01 isolated sensor from the 71M654x. The 71M654x performs digital communications bi-
directionally with the 71M6x01 and also provides power to the 71M6x01 through the isolating pulse
transformer. Isolated (remote) shunt current sensors are connected to the differential input of the
71M6x01. Included on the 71M6x01 companion isolator chip are:
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Digital isolation communications interface
An analog front end (AFE)
A precision voltage reference (VREF)
A temperature sensor (for digital temperature compensation)
A fully differential shunt resistor sensor input
A pre-amplifier to optimize shunt current sensor performance
Isolated power circuitry obtains dc power from pulses sent by the 71M654x
calculations to measure active energy (Wh) and reactive energy (VARh), as well as A h, and V h for four-
In a typical application, the 32-bit compute engine (CE) of the 71M654x sequentially processes the samples
from the voltage inputs on analog input pins and from the external 71M6x01 isolated sensors and performs
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quadrant metering. These measurements are then accessed by the MPU, processed further and output
using the peripheral devices available to the MPU.
In addition to advanced measurement functions, the clock function allows the 71M6541D/F and
71M6542F/G to record time-of-use (TOU) metering information for multi-rate applications and to time-
stamp tamper or other events. Measurements can be displayed on 3.3 V LCDs commonly used in low-tem-
perature environments. An on-chip charge pump is available to drive 5 V LCDs. Flexible mapping of LCD
display segments facilitate integration of existing custom LCDs. Design trade-off between the number of
LCD segments and DIO pins can be implemented in software to accommodate various requirements.
In addition to the temperature-trimmed ultra-precision voltage reference, the on-chip digital temperature
compensation mechanism includes a temperature sensor and associated controls for correction of unwanted
temperature effects on measurement and RTC accuracy, e.g., to meet the requirements of ANSI and IEC
standards. Temperature-dependent external components such as crystal oscillator, resistive shunts, current
Rev 4
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6541FT-IGT/F | 制造商:Maxim Integrated Products 功能描述:1-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Rail/Tube |
| 71M6541FT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:1-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel |
| 71M6541G | 制造商:未知厂家 制造商全称:未知厂家 功能描述:71M6541D/71M6541F/71M6541G/71M6542F/71M6542G 是 TeridianTM 的第4 代高集成度单相电表SoC |
| 71M6541G-IGT/F | 功能描述:计量片上系统 - SoC 71M6541G-IGT/F RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 71M6541GT-IGT/F | 功能描述:IC ENERGY METER 64-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包装:托盘 零件状态:停产 输入阻抗:- 测量误差:0.1% 电压 - I/O 高:2V 电压 - I/O 低:0.8V 电流 - 电源:- 电压 - 电源:3 V ~ 3.6 V 表计类型:单相 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:64-LQFP 供应商器件封装:64-LQFP（10x10） 标准包装:1,000 |
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