FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
5.2
Recommended External Components
Table 68: Recommended External Components
To
Function
Value
Unit
µF
µF
µF
µF
Name
From
V3P3A
V3P3D
V3P3SYS
V2P5
≥0.1 ±20% †
≥0.1 ±20% †
≥1.0 ±30%
0.1 ±20%
C1
C2
AGND
GNDD
GNDD
GNDD
Bypass capacitor for 3.3 V supply
Bypass capacitor for 3.3 V output
Bypass capacitor for V3P3SYS
Bypass capacitor for V2P5
CSYS
C2P5
32.768 kHz crystal – electrically similar to
ECS .327-12.5-17X or Vishay XT26T,
load capacitance 12.5 pF
XTAL
XIN
XOUT
32.768
kHz
Load capacitor for crystal (depends on
crystal specs and board parasitics).
CXS
CXL
XIN
AGND
AGND
pF
pF
33 ±10%
15 ±10%
Load capacitor for crystal (depends on
crystal specs and board parasitics).
XOUT
Notes:
1. AGND and GNDD 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 69: Recommended Operating Conditions
Parameter
Condition
Min
Typ
3.3
Max
Unit
V3P3SYS, V3P3A: 3.3 V Supply Voltage Normal Operation
3.0
3.6
V
V3P3A and V3P3SYS must be at the
same voltage
Battery Backup
0
3.6
V
No Battery
Externally Connect to V3P3SYS
Battery Backup:
VBAT
3.0
2.0
3.8
3.8
V
V
BRN and LCD modes
SLEEP mode
Operating Temperature
-40
+85
ºC
v1.3
© 2005-2010 TERIDIAN Semiconductor Corporation
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