Datasheet

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