参数资料
| 型号： | 71M6521FE-DB |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 102/107页 |
| 文件大小： | 0K |
| 描述： | BOARD DEMO FOR 71M6521FE |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表/功率表 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | 71M6521 |
| 已供物品： | 2 个板，线缆，CD，电源 |
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71M6521DE/DH/FE Data Sheet
PIN DESCRIPTIONS
Power/Ground Pins:
Name
GNDA
GNDD
V3P3A
V3P3SYS
V3P3D
VBAT
V2P5
Type
P
P
P
P
O
P
O
Circuit
--
--
--
--
13
12
10
Description
Analog ground: This pin should be connected directly to the ground plane.
Digital ground: This pin should be connected directly to the ground plane.
Analog power supply: A 3.3V power supply should be connected to this pin, must
be the same voltage as V3P3SYS.
System 3.3V supply. This pin should be connected to a 3.3V power supply.
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 high impedance in LCD and
sleep mode.
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.
Output of the internal 2.5 V regulator. A 0.1μF capacitor to GNDA should be
connected to this pin.
Analog Pins:
Name
IA, IB
VA, VB
V1
VREF
XIN
XOUT
Type
I
I
I
O
I
Circuit
6
6
7
9
8
Description
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.
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.
Comparator Input: This pin is a voltage input to the internal power-fail comparator.
The input voltage is compared to the internal BIAS voltage (1.6 V). 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.
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
0.1μF capacitor to GNDA should be connected.
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”.
Page: 102 of 107
Rev 3
相关PDF资料 |
PDF描述 |
|---|---|
| 71M6531F-DB | BOARD DEMO 71M6531F |
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| 71M6541F-DB | DEMO BOARD 71M6541F |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6521FE-IGT | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC |
| 71M6521FE-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 |
| 71M6521FE-IGT/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-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 |
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