71M6545 Datasheet, PDF (131/134 Pages) Maxim Integrated Products – Four-Quadrant Metering, Phase Metrology Processors Flash/RAM Size

PDS_6545_009
Data Sheet 71M6545/H
6.8.4 I/O Equivalent Circuits
V3P3D
V3P3D
Digital
Input
Pin
110K
GND
D
CMOS
Input
Digital Input Equivalent Circuit
Type 1:
Standard Digital Input or
pin configured as DIO Input
with Internal Pull-Up
V3P3D
Digital
Input
Pin
GND
D
110K
GND
D
CMOS
Input
Digital Input
Type 2:
Pin configured as DIO Input
with Internal Pull-Down
V3P3D
Digital
Input
Pin
GND
D
CMOS
Input
Digital Input Type 3:
Standard Digital Input or
pin configured as DIO Input
V3P3D
V3P3D
V3P3A
Analog
Input
Pin
To
MUX
GNDA
Analog Input Equivalent Circuit
Type 6:
ADC Input
V3P3A
from
internal
reference
VREF
Pin
GNDA
VREF Equivalent Circuit
Type 9:
VREF
V3P3A
Comparator
Input
Pin
To
Comparator
GNDA
Comparator Input Equivalent Circuit
Type 7:
Comparator Input
V3P3D
from
internal
reference
V2P5
Pin
GND
D
V2P5 Equivalent Circuit
Type 10:
V2P5
V3P3D
Oscillator
Pin
To
Oscillator
GNDD
Oscillator Equivalent Circuit
Type 8:
Oscillator I/O
VBAT_RTC
Pin
Power Down
Circuits
GNDD
VBAT_RTC Equivalent
Circuit Type 12:
VBAT_RTC Power
from
V3P3SYS
10
V3P3D
Pin
CMOS
Output
Digital
Output
Pin
GND
D
GND
D
Digital Output Equivalent Circuit
Type 4:
Standard Digital Output or
pin configured as DIO Output
Figure 39: I/O Equivalent Circuits
V3P3D Equivalent Circuit
Type 13:
V3P3D
v1.0
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