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参数资料
| 型号： | 71M6521BE-IGT/F |
| 厂商： | Maxim Integrated |
| 文件页数： | 56/97页 |
| 文件大小： | 0K |
| 描述： | IC ENERGY METER 8K FLASH 64-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 160 |
| 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-LQFP |
| 供应商设备封装： | 64-LQFP（10x10） |
| 包装： | 托盘 |
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71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
VBAT
Battery
Current
MPU Mode
MPU Clock
Source
WAKE
PLL_OK
Internal
RESETZ
Xtal
14.5 CK32
cycles
1024 CK32
cycles
BROWNOUT
VBAT_OK
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 module continues 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 2.5V 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 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 71M6521BE 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 BROWNOUT 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 auto-
matically 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 MPU RAM must be re-initialized.
The hardware watchdog timer will become active when the part enters MISSION mode.
Page: 56 of 97
? 2005-2008 TERIDIAN Semiconductor Corporation
V1.0
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6521BE-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 |
| 71M6521BE-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 |
| 71M6521DE | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC |
| 71M6521DE-DB | 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 71M6521DE Demo Brd |
| 71M6521DE-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 |
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