71M6521BE
Energy Meter IC
DATA SHEET
JANUARY 2008
SUPPLY CURRENT
PARAMETER
CONDITION
Normal Operation,
MIN
TYP
MAX
UNIT
V3P3A + V3P3SYS current
VBAT current
6.1
7.7
mA
V3P3A=V3P3SYS=3.3V
MPU_DIV = 3 (614kHz), CKOUT_E =
0, CE_EN = 1, RTM_E = 0, ECK_DIS =
1, ADC_E = 1, ICE_E = 0
-300
+300
nA
V3P3A + V3P3SYS current vs.
MPU clock frequency
mA/
MHz
Same conditions as above
0.5
9.1
Normal Operation as above, except
write Flash at maximum rate, CE_E=0,
ADC_E=0
V3P3A + V3P3SYS current,
Write Flash
10
mA
VBAT=3.6V
BROWNOUT mode, <25°C
BROWNOUT mode, >25°C
48
65
120
150
µA
µA
µA
µA
VBAT current
LCD Mode, 25°C
LCD mode, over temperature
5.7
2.9
8.5
15
SLEEP Mode, 25°C
Sleep mode, over temperature
5.0
10
µA
µA
†Current into V3P3A and V3P3SYS pins is not zero if voltage is applied at these pins in brownout, LCD or sleep modes.
V3P3D SWITCH
PARAMETER
On resistance – V3P3SYS to V3P3D
On resistance – VBAT to V3P3D
CONDITION
| IV3P3D | ≤ 1mA
| IV3P3D | ≤ 1mA
MIN
TYP
TYP
MAX
10
40
UNIT
Ω
Ω
2.5V VOLTAGE REGULATOR
Unless otherwise specified, load = 5mA
PARAMETER
CONDITION
Reduce V3P3 until V2P5
drops 200mV
MIN
MAX
440
+3
UNIT
mV
Voltage overhead V3P3-V2P5
PSSR ΔV2P5/ΔV3P3
RESET=0, iload=0
-3
mV/V
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