参数资料
型号: 71M6531D-IMR/F
厂商: Maxim Integrated
文件页数: 99/121页
文件大小: 0K
描述: IC ENERGY METER 128KB 68-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: *
FDS 6531/6532 005
Data Sheet 71M6531D/F-71M6532D/F
5.2
Recommended External Components
Table 68: Recommended External Components
Name
C1
From
V3P3A
To
AGND
Function
Bypass capacitor for 3.3 V supply
Value
≥ 0.1 ± 20%
?
Unit
μ F
C2
V3P3D
GNDD
Bypass capacitor for 3.3 V output
0.1 ± 20%
?
μ F
CSYS
C2P5
XTAL
CXS
V3P3SYS
V2P5
XIN
XIN
GNDD
GNDD
XOUT
AGND
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).
≥ 1.0 ± 30%
0.1 ± 20%
32.768
33 ± 10%
μ F
μ F
kHz
pF
CXL
XOUT
AGND
Load capacitor for crystal (depends on
crystal specs and board parasitics).
7 ± 10%
??
pF
For accuracy and EMI rejection, C1 + C2 should be 470 μF or higher.
10, 12, or 15 pF may be used if 7 pF is not available, with limited range for RTCA_ADJ .
Notes:
1. AGND and GNDD should be connected together.
2. V3P3SYS and V3P3A should be connected together.
?
??
5.3
Recommended Operating Conditions
Table 69: Recommended Operating Conditions
Parameter
V3P3SYS, V3P3A : 3.3 V Supply Voltage
V3P3A and V3P3SYS must be at the
same voltage
Condition
Normal Operation
Battery Backup
Min
3.0
0
Typ
3.3
Max
3.6
3.6
Unit
V
V
No Battery
Externally Connect to V3P3SYS
VBAT
Operating Temperature
Battery Backup:
BRN and LCD modes
SLEEP mode
3.0
2.0
-40
3.8
3.8
+85
V
V
oC
Rev 2
99
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