Datasheet

Page: 2 of 60 © 2005−2011 Teridian Semiconductor Corporation 1.6
∆Σ ADC
CONVERTER
+
-
VREF
IA
VA
IB
VB
MUX
VREF
RESETZ
VFLT
64 PINS -- 64 TQFP
UART
TX
RX
VX
FAULT DETECT
GNDD
V3P3A
V3P3D
VBAT
VOLT
REG
2.5V to logic
V2P5
TMUXOUT
TEST
GNDA
IC
TEMP
March 3, 2008
CK_GEN
VREF
VC
VX
GNDA
GNDD
V3P3A
GNDD
V3P3
XIN
XOUT
OSC
(32KHz)
CKTEST
SYSTEM CLOCKS
RTC
DATA
RAM
BATTERY BACKUP
D6
D7
SSCLK
SSDATA
SFR
SRDY
SSI INTERFACE
MUXSYNC
CALCULATIONS
OUTPUT VALUES:
ALARMS:
Whr (A, B, C)
VARhr (A, B, C)
VAhr (A, B, C)
Vrms (A, B, C)
Irms (A, B, C)
Iphase (A, B, C)
Frequency (Selected Phase)
Temperature
Voltage Sag (A, B, C)
Zero Cross (Selected Phase)
Over-Voltage (All)
Over-Current (All)
D0-D7 State Change
CONTROL
D0
D1
D2
D3
D4
PULSEW PULSER
VBIAS
(1.5V)
VBIAS
(1.5V)
D5
RESERVED
IRQZ
21
I/O CONTROL
Change of State
(D0...D7)
GNDD
PULSE4
PULSE3
PULSE_INIT
BAUDRATE
MISC
Figure 2: IC Functional Block Diagram
ELECTRICAL SPECIFICATIONS