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参数资料
| 型号： | 71M6521BE-IGT/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 77/97页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 8K FLASH 64-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 160 |
| 系列： | Single Converter Technology® |
| 测量误差： | 0.4% |
| 电源电压： | 3 V ~ 3.6 V |
| 测量仪表类型： | 单相，双相 |
| 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： | 托盘 |
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71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
CE Calculations
The CE performs the precision computations necessary to accurately measure energy. These computations include offset
cancellation, products, product smoothing, product summation, frequency detection, and sag detection. All data computed by
the CE is dependent on the selected meter equation as given by EQU ( in I/O RAM ) . However, for the 6521BE CE code, EQU is
always 0.
EQU
Watt Formula
(WSUM)
W0SUM
Element Input Mapping
W1SUM I0SQSUM
I1SQSUM
0
VA IA (1 element, 2W 1 φ )
with tamper detection
VA*IA
VA*IB
IA
IB
CESTATUS
Since the CE_BUSY interrupt occurs at 2520.6Hz, it is desirable to minimize the computation required in the interrupt handler
of the MPU. The MPU can read the CE status word at every CE_BUSY interrupt.
CE
Address
0x11E8
Name
CESTATUS
Description
See description of CE status word below
The CE Status Word is used for generating early warnings to the MPU. It contains sag warnings for VA as well as the F0 bit, a
clock derived from the fundamental input frequency. CESTATUS provides information about the status of voltage and input AC
signal frequency, which are useful for generating early power fail warnings, e.g. to initiate necessary data storage. CESTATUS
represents the status flags for the preceding CE code pass (CE busy interrupt). Sag alarms are not remembered from one
code pass to the next. The CE Status word is refreshed at every CE_BUSY interrupt.
The significance of the bits in CESTATUS is shown in the table below:
CESTATUS
[bit]
31-29
28
27
26
25
24-0
Name
Not Used
F0
CREEP
SAG_B
SAG_A
Not Used
Description
These unused bits will always be zero.
F0 is a square wave at the exact fundamental input frequency.
Mains Signal
F0
Normally zero. Becomes one when creep logic has been applied to either WA or WB.
Normally zero. These bits come one when the voltage in the respective channel remains
below SAG_THR for SAG_CNT samples. Will not return to zero until the voltage rises above
SAG_THR .
These unused bits will always be zero.
V1.0
? 2005-2008 TERIDIAN Semiconductor Corporation
Page: 77 of 97
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6521BE-IGTR/F | 功能描述:计量片上系统 - SoC Residential Energy Meter IC 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 |
| 71M6521BE-IGTR/F1 | 功能描述:计量片上系统 - SoC 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 |
| 71M6521DE | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC |
| 71M6521DE-DB | 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 71M6521DE Demo Brd |
| 71M6521DE-IGT/F | 功能描述:计量片上系统 - SoC Residential Energy Meter IC 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 |
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