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71M6531D Datasheet(PDF) 96 Page - Teridian Semiconductor Corporation

Part No. 71M6531D
Description  Energy Meter IC
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Maker  TERIDIAN [Teridian Semiconductor Corporation]
Homepage  http://www.teridian.com
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71M6531D Datasheet(HTML) 96 Page - Teridian Semiconductor Corporation

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Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
96
© 2005-2009 TERIDIAN Semiconductor Corporation
v1.2
5.2
Recommended External Components
Table 62: Recommended External Components
Name
From
To
Function
Value
Unit
C1
V3P3A
AGND
Bypass capacitor for 3.3 V supply
≥0.1 ±20%
µF
C2
V3P3D
DGND
Bypass capacitor for 3.3 V output
≥0.1 ±20%
µF
CSYS
V3P3SYS
DGND
Bypass capacitor for V3P3SYS
≥1.0 ±30%
µF
C2P5
V2P5
DGND
Bypass capacitor for V2P5
0.1
±20%
µF
XTAL
XIN
XOUT
32.768 kHz crystal – electrically similar to
ECS .327-12.5-17X or Vishay XT26T,
load capacitance 12.5 pF
32.768
kHz
CXS
XIN
AGND
Load capacitor for crystal (depends on
crystal specs and board parasitics).
33
±10%
pF
CXL
XOUT
AGND
Load capacitor for crystal (depends on
crystal specs and board parasitics).
15
±10%
pF
Notes:
1.
AGND and DGND should be connected together.
2.
V3P3SYS and V3P3A should be connected together.
For accuracy and EMI rejection, C1 + C2 should be 470 µF or higher.
5.3
Recommended Operating Conditions
Table 63: Recommended Operating Conditions
Parameter
Condition
Min
Typ
Max
Unit
V3P3SYS, V3P3A: 3.3 V Supply Voltage
V3P3A and V3P3SYS must be at the
same voltage
Normal Operation
3.0
3.3
3.6
V
Battery Backup
0
3.6
V
VBAT
No Battery
Externally Connect to V3P3SYS
Battery Backup:
BRN and LCD modes
SLEEP mode
3.0
2.0
3.8
3.8
V
V
Operating Temperature
-40
+85
ºC


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