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參數資料
型號： 71M6543G-IGTR/F
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 模擬信號調理
英文描述： SPECIALTY ANALOG CIRCUIT, PQFP100
封裝： LEAD FREE, LQFP-100
文件頁數： 142/157頁
文件大小： 2178K
代理商： 71M6543G-IGTR/F
71M6543F/H and 71M6543G/GH Data Sheet
v1.2
2008–2011 Teridian Semiconductor Corporation
85
active power (Wh), reactive power (VARh), A
2h, and V2h for four-quadrant metering. These measurements
are then accessed by the MPU, processed further and output using the peripheral devices available to the
MPU.
Both the CE and multiplexer are controlled by the MPU via shared registers in the I/O RAM and in RAM.
The CE outputs a total of six discrete signals to the MPU. These consist of four pulses and two interrupts:
CE_BUSY
XFER_BUSY
WPULSE, VPULSE (pulses for active and reactive energy)
XPULSE, YPULSE (auxiliary pulses)
These interrupts are connected to the MPU interrupt service inputs as external interrupts. CE_BUSY
indicates that the CE is actively processing data. This signal occurs once every multiplexer cycle (typically
396 s), and indicates that the CE has updated status information in its CESTATUS register (CE RAM 0x80).
XFER_BUSY indicates that the CE is updating data to the output region of the RAM. This update occurs
whenever the CE has finished generating a sum by completing an accumulation interval determined by
SUM_SAMPS[12:0], I/O RAM 0x2107[4:0], 2108[7:0], (typically every 1000 ms). Interrupts to the MPU occur
on the falling edges of the XFER_BUSY and CE_BUSY signals.
WPULSE and VPULSE are typically used to signal energy accumulation of real (Wh) and reactive (VARh)
energy. Tying WPULSE and VPULSE into the MPU interrupt system can support pulse counting.
XPULSE and YPULSE can be used to signal events such as sags and zero crossings of the mains voltage
to the MPU. Tying these outputs into the MPU interrupt system relieves the MPU from having to read the
CESTATUS register at every occurrence of the CE_BUSY interrupt in order to detect sag or zero crossing
events.
Refer to 5.4 CE Interface Description on page 120 for additional information on setting up the device
using the MPU firmware.
Figure 26: MPU/CE Data Flow
MPU
CE
I/O RAM (Configuration RAM)
Pulses
Samples
WPULSE
VPULSE
XPULSE
YPULSE
Control
Processed
Metering
Data
MUX
Control
Interrupts
CECONFIG
CESTATUS
XRAM
CE_BUSY
XFER_BUSY
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相關代理商/技術參數
參數描述
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71M6543H 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation
71M6543H-IGT/F 功能描述:IC ENERGY METER 100-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包裝:托盤 零件狀態:停產 輸入阻抗:- 測量誤差:0.1% 電壓 - I/O 高:2V 電壓 - I/O 低:0.8V 電流 - 電源:- 電壓 - 電源:3 V ~ 3.6 V 表計類型:3 相 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-LQFP 供應商器件封裝:100-LQFP（14x14） 標準包裝:90
71M6543H-IGTR/F 功能描述:IC ENERGY METER 100-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包裝:帶卷（TR） 零件狀態:停產 輸入阻抗:- 測量誤差:0.1% 電壓 - I/O 高:2V 電壓 - I/O 低:0.8V 電流 - 電源:- 電壓 - 電源:3 V ~ 3.6 V 表計類型:3 相 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-LQFP 供應商器件封裝:100-LQFP（14x14） 標準包裝:1,000
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