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71M6543F/71M6543G Data Sheet
corresponding sensor circuit (i.e., the CT and burden resistor for current channels or the resistor divider
network for the voltage channels).
In the 71M6543F and 71M6543G, the required VREF compensation coefficients PPMC and PPMC2 are
calculated from readable on-chip non-volatile fuses (see 4.5.2Temperature Coefficients for the
71M6543F ). These coefficients are designed to achieve ±40 ppm/°C for VREF.
4.6
Connecting I 2 C EEPROMs
I C EEPROMs or other I C compatible devices should be connected to the DIO pins SEGDIO2 and
the DIO pins SEGDIO2 and SEGDIO3 to I C pins SCL and SDATA.
2 2
SEGDIO3, as shown in Figure 33 .
Pullup resistors of roughly 10 k ? to V3P3D (to ensure operation in BRN mode) should be used for both
SDCK and SDATA signals. The DIO_EEX ( I/O RAM 0x2456[7:6] ) field must be set to 01 in order to convert
2
10 k Ω
DIO2
DIO3
V3P3D
10 k Ω
EEPROM
SDCK
SDATA
Figure 33: I C EEPROM Connection
71M6543
2
4.7
Connecting Three-Wire EEPROMs
μWire EEPROMs and other compatible devices should be connected to the DIO pins SEGDIO2 and
SEGDIO3, as described in 2.5.11 EEPROM Interface on page 65 .
4.8
UART0 (TX/RX)
The UART0 RX pin should be pulled down by a 10 k ? resistor and additionally protected by a 100 pF
ceramic capacitor, as shown in Figure 34 .
71M6543
RX
TX
100 pF 10 k Ω
RX
TX
Figure 34: Connections for UART0
92
v2
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相关代理商/技术参数
71M6543F-IGTR/F 功能描述:计量片上系统 - SoC Precision 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
71M6543FT-IGT/F 制造商:Maxim Integrated Products 功能描述:ENERGY METER ICS - Rail/Tube
71M6543FT-IGTR/F 制造商:Maxim Integrated Products 功能描述:3-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel
71M6543G 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation
71M6543GH 制造商:未知厂家 制造商全称:未知厂家 功能描述:电表IC
71M6543GHT-IGT/F 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KB, PRES TEMP SENSOR, HI PREC - Bulk
71M6543GHT-IGTR/F 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KB, PRES TEMP SENSOR, HI PREC - Tape and Reel
71M6543G-IGT/F 功能描述:计量片上系统 - SoC Precision 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