参数资料
型号: 71M6521FE-IGT/F
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, QFP64
封装: LEAD FREE, LQFP-64
文件页数: 68/103页
文件大小: 1691K
代理商: 71M6521FE-IGT/F
71M6521DE/71M6521FE
Energy Meter IC
DATA SHEET
OCTOBER 2010
v1.1
2005-2010 Teridian Semiconductor Corporation
Page: 67 of 103
A Maxim Integrated Products Brand
19-5370; 10/10
Connecting Three-Wire EEPROMs
Wire EEPROMs and other compatible devices should be connected to the DIO pins DIO4 and DIO5, as shown in Figure 34.
DIO5 connects to both the DI and DO pins of the three-wire device. The CS pin must be connected to a vacant DIO pin of the
71M6521DE/FE. A pull-up resistor of roughly 10k
to V3P3D (to ensure operation in BROWNOUT mode) should be used for
the DI/DO signals, and the CS pin should be pulled down with a resistor to prevent that the three-wire device is selected on
power-up, before the 71M6521DE/FE can establish a stable signal for CS. The DIO_EEX register in I/O RAM must be set to 10
in order to convert the DIO pins DIO4 and DIO5 to uWire pins. The pull-up resistor for DIO5 may not be necessary.
DIO4
DIO5
71M6521
EEPROM
SCLK
DI
V3P3D
10k
Ω
CS
DIOn
DO
10k
Ω
DIO4
DIO5
71M6521
EEPROM
SCLK
DI
V3P3D
10k
Ω
CS
DIOn
DO
10k
Ω
Figure 34: Three-Wire EEPROM Connection
UART0 (TX/RX)
The RX pin should be pulled down by a 10k
resistor and additionally protected by a 100pF ceramic capacitor, as shown in
TX
RX
71M6521E
10k
Ω
100pF
RX
TX
RX
71M6521E
10k
Ω
100pF
RX
TX
Figure 35: Connections for the RX Pin
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相关代理商/技术参数
参数描述
71M6521FE-IGTR 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC
71M6521FE-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
71M6521FE-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
71M6521FE-IM 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC
71M6521FE-IM/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