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参数资料
| 型号： | 71M6521FE-IM/F |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, QCC68 |
| 封装： | LEAD FREE, LQFN-68 |
| 文件页数： | 103/103页 |
| 文件大小： | 1691K |
| 代理商： | 71M6521FE-IM/F |
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71M6521DE/71M6521FE
Energy Meter IC
DATA SHEET
OCTOBER 2010
v1.1
2005-2010 Teridian Semiconductor Corporation
Page: 99 of 103
A Maxim Integrated Products Brand
19-5370; 10/10
PIN DESCRIPTIONS
Power/Ground Pins:
Name
Type
Circuit
Description
GNDA
P
--
Analog ground: This pin should be connected directly to the ground plane.
GNDD
P
--
Digital ground: This pin should be connected directly to the ground plane.
V3P3A
P
--
Analog power supply: A 3.3V power supply should be connected to this pin, must be the
same voltage as V3P3SYS.
V3P3SYS
P
--
System 3.3V supply. This pin should be connected to a 3.3V power supply.
V3P3D
O
13
Auxiliary voltage output of the chip, controlled by the internal 3.3V selection switch. In
mission mode, this pin is internally connected to V3P3SYS. In BROWNOUT mode, it is
internally connected to VBAT. This pin is floating in LCD and sleep mode.
VBAT
P
12
Battery backup power supply. A battery or super-capacitor is to be connected between
VBAT and GNDD. If no battery is used, connect VBAT to V3P3SYS.
V2P5
O
10
Output of the internal 2.5V regulator. A 0.1F capacitor to GNDA should be connected to
this pin.
Analog Pins:
Name
Type
Circuit
Description
IA, IB
I
6
Line Current Sense Inputs: These pins are voltage inputs to the internal A/D converter.
Typically, they are connected to the outputs of current sensors. Unused pins must be
connected to V3P3A.
VA, VB
I
6
Line Voltage Sense Inputs: These pins are voltage inputs to the internal A/D converter.
Typically, they are connected to the outputs of resistor dividers. Unused pins must be
connected to V3P3A or tied to the voltage sense input that is in use.
V1
I
7
Comparator Input: This pin is a voltage input to the internal power-fail comparator. The
input voltage is compared to the internal BIAS voltage (1.6V). If the input voltage is above
VBIAS, the comparator output will be high (1). If the comparator output is lower, a voltage
fault will occur and the chip will be forced to battery mode.
VREF
O
9
Voltage Reference for the ADC. This pin is normally disabled by setting the VREF_CAL bit
in the I/O RAM and can then be left unconnected. If enabled, a 0.1F capacitor to GNDA
should be connected.
XIN
XOUT
I
8
Crystal Inputs: A 32kHz crystal should be connected across these pins. Typically, a 27pF
capacitor is also connected from each pin to GNDA. It is important to minimize the
capacitance between these pins. See the crystal manufacturer datasheet for details.
Pin types: P = Power, O = Output, I = Input, I/O = Input/Output
The circuit number denotes the equivalent circuit, as specified under “I/O Equivalent Circuits”.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6521FE-IMR | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC |
| 71M6521FE-IMR/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 |
| 71M6521-TGP1-68M | 制造商:Maxim Integrated Products 功能描述:Programmer Accessories Gang Programmer Base w/6521 Socket Brd |
| 71M6523-DB | 功能描述:开发板和工具包 - 8051 71M6521D Demo Brd RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| 71M6523-IM | 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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