DS_6618_005
78M6618 Data Sheet
5 I/O Equivalent Circuits
V3P3D
V3P3D
110K
Digital
Input
Pin
GNDD
LCD Output Equivalent Circuit
Type 5:
LCD SEG or
pin configured as LCD SEG
V3P3A
V3P3D
V3P3D
VREF Equivalent Circuit
Type 9:
VREF
CMOS
Input
LCD SEG
Output
Pin
GNDD
from
internal
reference
GNDA
VREF
Pin
V3P3A
LCD
Driver
Digital Input Equivalent Circuit
Type 1:
Standard Digital Input or
pin configured as DIO Input
with Internal Pull-Up
Digital
Input
Pin
110K
GNDD
GNDD
CMOS
Input
Analog
Input
Pin
GNDA
To
MUX
from
internal
reference
V2P5
Pin
GNDD
V2P5 Equivalent Circuit
Type 10:
V2P5
Analog Input Equivalent Circuit
Type 6
:
ADC Input
Digital Input
Type 2:
Pin configured as DIO Input
with Internal Pull-Down
V3P3D
Comparator
Input
Pin
V3P3A
To
Comparator
GNDA
VLCD
Pin
LCD
Drivers
Digital
Input
Pin
GNDD
GNDD
VLCD Equivalent Circuit
Type 11:
VLCD Power
CMOS
Input
Comparator Input Equivalent
Circuit Type 7:
Comparator Input
Digital Input Type 3:
Standard Digital Input or
pin configured as DIO Input
Oscillator
Pin
To
Oscillator
VBAT
Pin
Power
Down
Circuits
GNDD
VBAT Equivalent Circuit
Type 12:
VBAT Power
GNDD
V3P3D
V3P3D
Oscillator Equivalent Circuit
Type 8:
Oscillator I/O
10
CMOS
Output
Digital
Output
Pin
GNDD
GNDD
Digital Output Equivalent Circuit
Type 4:
Standard Digital Output or
pin configured as DIO Output
from
VBAT
V3P3D Equivalent Circuit
Type 13:
V3P3D
from
V3P3SYS
V3P3D
Pin
40
Figure 9: I/O Equivalent Circuits
Rev. 1.4
29
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
