71M6533 Maxim, 71M6533 Datasheet - Page 60

• Manufacturer Part Number: 71M6533
• Description: The Teridian™ 71M6533 and 71M6534 are third-generation polyphase metering systems-on-chips (SoCs) with a 10MHz 8051-compatible MPU core, low-power RTC, flash, and LCD driver
• Manufacturer: Maxim

60
Figure 22: Transition from BROWNOUT to MISSION Mode when System Power Returns
Figure 23: Power-Up Timing with V3P3SYS and VBAT Tied Together
(V3P3SYS)
MPU Clock
MPU Clock
MPU Mode
MPU Mode
and VBAT
V3P3SYS
RESETZ
PLL_OK
PLL_OK
System
V1_OK
Current
Internal
Current
Battery
Source
V1_OK
Battery
WAKE
Source
WAKE
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
(4.2 MHz/MUX_DIV)
PLL
(4.2 MHz)
300 nA
300 nA
PLL
time
Power
Rev 2