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参数资料
| 型号： | 71M6521FE-IMR/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 58/107页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 32K FLASH 68-QFN |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 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-VFQFN 裸露焊盘 |
| 供应商设备封装： | 64-QFN（7.5x7.5） |
| 包装： | 带卷 (TR) |
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71M6521DE/DH/FE Data Sheet
Wake on PB
If the part is in SLEEP or LCD mode, it can be awakened by a rising edge on the PB pin. This pin is normally pulled to
GND and can be pulled high by a push button depression. Before the PB signal rises, the MPU is in reset due to the
internal signal WAKE being low. When PB rises, WAKE rises and within three crystal cycles, the MPU begins to
execute. The MPU can determine whether the PB signal woke it up by checking the IE_PB flag.
For debouncing, the PB pin is monitored by a state machine operating from a 32Hz clock. This circuit will reject
between 31ms and 62ms of noise. Detection hardware will ignore all transitions after the initial rising edge. This will
continue until the MPU clears the IE_PB bit.
System
Power
(V3P3SYS)
PB or wake-
up timer
WAKE
15 CK32
cycles
MPU Mode
PLL_OK
LCD
BROWNOUT
time
Figure 25: Wake Up Timing
Wake on Timer
If the part is in SLEEP or LCD mode, it can be awakened by the wake-up timer. Until this timer times out, the MPU is
in reset due to WAKE being low. When the wake-up timer times out, the WAKE signal rises and within three crystal
cycles, the MPU begins to execute. The MPU can determine whether the timer woke it by checking the AUTOWAKE
interrupt flag ( IE_WAKE ).
The wake-up timer begins timing when the part enters LCD or SLEEP mode. Its duration is controlled by
WAKE_PRD[2:0] and WAKE_RES . WAKE_RES selects a timer LSB of either 1 minute ( WAKE_RES =1) or 2.5 seconds
( WAKE_RES =0). WAKE_PRD[2:0] selects a duration of from 1 to 7 LSBs.
The timer is armed by WAKE_ARM =1. It must be armed at least three RTC cycles before SLEEP or LCD_ONLY is
initiated. Setting WAKE_ARM presets the timer with the values in WAKE_RES and WAKE_PRD and readies the timer
to start when the MPU writes to SLEEP or LCD_ONLY . The timer is reset and disarmed whenever the MPU is awake.
Thus, if it is desired to wake the MPU periodically (every 5 seconds, for example) the timer must be rearmed every
time the MPU is awakened.
Page: 58 of 107
Rev 3
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 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 |
| 71M6523-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 |
| 71M6523-IMR | 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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