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