71M6521FE-IGT/F Maxim Integrated Products, 71M6521FE-IGT/F Datasheet - Page 56

• Manufacturer Part Number: 71M6521FE-IGT/F
• Description: IC ENERGY METER 32K FLASH 64LQFP
• Manufacturer: Maxim Integrated Products

Specifications of 71M6521FE-IGT/F

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Page: 56 of 107
Figure 22: Transition from BROWNOUT to MISSION Mode when System Power Returns
(V3P3SYS)
MPU Clock
MPU Mode
MPU Mode
MPU Clock
and VBAT
V3P3SYS
PLL_OK
RESETZ
System
PLL_OK
Battery
Current
Source
V1_OK
V1_OK
WAKE
Current
Internal
Battery
Source
Power
WAKE
Figure 23: Power-Up Timing with V3P3SYS and VBAT tied together
BROWNOUT
Xtal
Transition
13..14 CK
CK32 cycles
2048...4096
cycles
4096 CK32
1024 CK32
cycles
14.5 CK32
BROWN-
cycles
Xtal
cycles
OUT
MISSION
MISSION
(4.2MHz/MUX_DIV)
71M6521DE/DH/FE Data Sheet
PLL
(4.2MHz)
300nA
300nA
PLL
time
time
Rev 2