MSP430F677X_16 Datasheet, PDF (3/162 Pages) Texas Instruments – Polyphase Metering SoCs

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ECCN 5E002 TSPA - Technology / Software Publicly Available
MSP430F677x, MSP430F676x, MSP430F674x
SLAS768D – SEPTEMBER 2012 – REVISED DECEMBER 2013
TOTAL
kWh
Load
Phase A
Neutral
CT
Phase C
Phase B
CT
CT
CT
Neutral
Phase B
VCC
RST
VSS
IA
Sx, COMx
MSP430F677x
R33
+
ΣΔ Modulator
–
Px.x
+
IB
ΣΔ Modulator
–
Px.y
+
IC
ΣΔ Modulator
–
Ineutral
+
ΣΔ Modulator
–
VA AFE
+
ΣΔ Modulator
–
VB
+
ΣΔ Modulator
–
VC
+
VN
ΣΔ Modulator
–
Vref
XIN
XOUT
USCIA0
USCIA1
USCIA2
USCIA3
USCIB0
USCIB1
LCDCAP
STATUS LEDs
PULSE LEDs
32,768Hz
UART or SPI
UART or SPI
UART or SPI
UART or SPI
I2C or SPI
I2C or SPI
Phase A
Source From Utility
Phase C
Figure 1. 3-Phase 4-Wire Star Connection Using MSP430F677x
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