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参数资料
| 型号： | 71M6521FE-IMR/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 57/107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
VBAT
Battery
Current
MPU Mode
MPU Clock
Source
WAKE
PLL_OK
Internal
RESETZ
VBAT_OK
Xtal
14.5 CK32
cycles
1024 CK32
cycles
BROWNOUT
time
Figure 24: Power-Up Timing with VBAT only
Fault and Reset Behavior
Reset Mode: When the RESET pin is pulled high all digital activity stops. The oscillator and RTC module continue to
run. Additionally, all I/O RAM bits are set to their default states. As long as V1, the input voltage at the power fault
block, is greater than VBIAS, the internal 2.5 V regulator will continue to provide power to the digital section.
Once initiated, the reset mode will persist until the reset timer times out, signified by the internal signal WAKE rising.
This will occur in 4100 cycles of the real time clock after RESET goes low, at which time the MPU will begin executing
its preboot and boot sequences from address 00. See the security section for more description of preboot and boot.
If system power is not present, the reset timer duration will be 2 cycles of the crystal clock, at which time the MPU will
begin executing in BROWNOUT mode, starting at address 00.
Power Fault Circuit: The 71M6521DE/DH/FE includes a comparator to monitor system power fault conditions. When
the output of the comparator falls (V1<VBIAS), the I/P RAM bits PLL_OK is zeroed and the part switches to BROWN-
OUT mode if a battery is present. Once, system power returns, the MPU remains in reset and does not start Mission
Mode until 4100 oscillator clocks later, when PLL_OK rises. If a battery is not present, indicated by BAT_OK=0,
WAKE will fall and the part will enter SLEEP mode.
There are several conditions the part could be in as system power returns. If the part is in BROWNOUT mode, it will
automatically switch to mission mode when PLL_OK rises. It will receive an interrupt indicating this. No configuration
bits will be reset or reconfigured during this transition.
If the part is in LCD or SLEEP mode when system power returns, it will also switch to mission mode when PLL_OK
rises. In this case, all configuration bits will be in the reset state due to WAKE having been zero. The RTC clock will
not be disturbed, but the MPU RAM must be re-initialized. The hardware watchdog timer will become active when the
part enters MISSION mode.
If there is no battery when system power returns, the part will switch to mission mode when PLL_OK rises. All
configuration bits will be in reset state, and RTC and MPU RAM data will be unknown and must be initialized by the
MPU.
Wake Up Behavior
As described above, the part will always wake up in mission mode when system power is restored. Additionally, the
part will wake up in BROWNOUT mode when PB rises (push button pressed) or when a timeout of the wake-up timer
occurs.
Rev 3
Page: 57 of 107
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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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