71M6521DE Datasheet, PDF (88/101 Pages) Teridian Semiconductor Corporation – Energy Meter IC

71M6521DE/71M6521FE
Energy Meter IC
DATASHEET
JANUARY 2008
PERFORMANCE SPECIFICATIONS
INPUT LOGIC LEVELS
PARAMETER
Digital high-level input voltage^†, V_IH
Digital low-level input voltage^†, V_IL
Input pull-up current, IIL
CONDITION
VIN=0V, ICE_E=1
MIN
TYP
MAX
2
0.8
E_RXTX,
10
100
E_RST, CKTEST
10
100
Other digital inputs
-1
0
1
Input pull down current, IIH
VIN=V3P3D
ICE_E
10
100
PB
-1
0
1
Other digital inputs
-1
0
1
†_{In battery powered modes, digital inputs should be below 0.3V or above 2.5V to minimize battery current.}
UNIT
V
V
µA
µA
µA
µA
µA
µA
OUTPUT LOGIC LEVELS
PARAMETER
Digital high-level output voltage V_OH
Digital low-level output voltage V_OL
OPT_TX VOH (V3P3D-OPT_TX)
OPT_TX VOL
CONDITION
I_LOAD = 1mA
I_LOAD = 15mA
I_LOAD = 1mA
I_LOAD = 15mA
ISOURCE=1mA
ISINK=20mA
POWER-FAULT COMPARATOR
PARAMETER
Offset Voltage
V1-VBIAS
Hysteresis Current
V1
Response Time
V1
WDT Disable Threshold (V1-V3P3A)
BATTERY MONITOR
BME=1
PARAMETER
Load Resistor
LSB Value - does not include the 9-bit left
shift at CE input.
Offset Error
CONDITION
Vin = VBIAS - 100mV
+100mV overdrive
CONDITION
FIR_LEN=0
FIR_LEN=1
MIN
TYP
V3P3D
–0.4
V3P3D-
0.6
0
MAX
0.4
0.8
0.4
0.7
UNIT
V
V
V
V
V
V
MIN
TYP
MAX UNIT
-20
+15
mV
0.8
2
5
-400
1.2
μA
10
μs
-10
mV
MIN
TYP
MAX UNIT
27
45
63
kΩ
-6.0
-5.4
-4.9
μV
-2.6
-2.3
-2.0
μV
-200
-72
+100
mV
Page: 88 of 101
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