参数资料
型号: 71M6542F-IGT/F
厂商: Maxim Integrated
文件页数: 113/166页
文件大小: 0K
描述: IC ENERGY METERING
标准包装: 90
系列: *
71M6541D/F/G and 71M6542F/G Data Sheet
Name
Location
Rst Wk
Dir
Description
DIO_PV
DIO_PW
DIO_PX
DIO_PY
EEDATA[7:0]
2457[6]
2457[7]
2458[7]
2458[6]
SFR 9E
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
Causes VARPULSE to be output on pin SEGDIO1, if LCD_MAP[1] = 0.
Causes WPULSE to be output on pin SEGDIO0, if LCD_MAP[0] = 0.
Causes XPULSE to be output on pin SEGDIO6 , if LCD_MAP[6] = 0.
Causes YPULSE to be output on pin SEGDIO7 , if LCD_MAP[7] = 0.
Serial EEPROM interface data.
Serial EEPROM interface control.
Status
Bit
Name
Read/
Write
Reset
State
Polarity Description
EECTRL[7:0]
SFR 9F
0
0
R/W
7
ERROR
R
0
Positive
1 when an illegal command
is received.
6
BUSY
R
0
Positive 1 when serial data bus is
busy.
5
RX_ACK
R
1
Positive
1 indicates that the
EEPROM sent an ACK bit.
Specifies the power equation.
Inputs Used for Energy/Current
EQU
Watt & VAR Formula
( WSUM/VARSUM )
W0SUM/
VAR0SUM
Calculation
W1SUM/
VAR1SUM
I0SQ
SUM
I1SQ
SUM
EQU[2:0]
2106[7:5]
0
0
R/W
0
1
VA*IA
1 element, 2W 1 φ
VA*(IA-IB)/2
1 element, 3W 1 φ
VA*IA
VA*(IA-IB)/2
VA*IB 1
IA
IA-IB
IB 1
IB
2 ?
VA*IA + VB*IB
2 element, 3W 3 φ Delta
VA*IA
VB*IB
IA
IB
Note:
1. Optionally, IB may be used to measure neutral current.
Rev 4
?
71M6542F/G only
113
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