PIC18FXX20
TABLE 1-2:
Pin Name
PIC18FXX20 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Number
Pin
Buffer
Type
Description
Type
PIC18F6X20 PIC18F8X20
PORTD is a bi-directional I/O port. These
pins have TTL input buffers when external
memory is enabled.
RD0/PSP0/AD0
RD0
58
55
54
53
52
51
50
49
72
69
68
67
66
65
64
63
I/O
I/O
I/O
ST
Digital I/O.
PSP0
TTL
TTL
Parallel Slave Port data.
External memory address/data 0.
AD0(3)
RD1/PSP1/AD1
RD1
I/O
I/O
I/O
ST
TTL
TTL
Digital I/O.
Parallel Slave Port data.
External memory address/data 1.
PSP1
AD1(3)
RD2/PSP2/AD2
RD2
I/O
I/O
I/O
ST
TTL
TTL
Digital I/O.
Parallel Slave Port data.
External memory address/data 2.
PSP2
AD2(3)
RD3/PSP3/AD3
RD3
I/O
I/O
I/O
ST
TTL
TTL
Digital I/O.
Parallel Slave Port data.
External memory address/data 3.
PSP3
AD3(3)
RD4/PSP4/AD4
RD4
I/O
I/O
I/O
ST
TTL
TTL
Digital I/O.
Parallel Slave Port data.
External memory address/data 4.
PSP4
AD4(3)
RD5/PSP5/AD5
RD5
I/O
I/O
I/O
ST
TTL
TTL
Digital I/O.
Parallel Slave Port data.
External memory address/data 5.
PSP5
AD5(3)
RD6/PSP6/AD6
RD6
I/O
I/O
I/O
ST
TTL
TTL
Digital I/O.
Parallel Slave Port data.
External memory address/data 6.
PSP6
AD6(3)
RD7/PSP7/AD7
RD7
I/O
I/O
I/O
ST
Digital I/O.
PSP7
TTL
Parallel Slave Port data.
AD7(3)
TTL
External memory address/data 7.
Legend: TTL = TTL compatible input
CMOS = CMOS compatible input or output
Analog = Analog input
ST = Schmitt Trigger input with CMOS levels
I
= Input
= Power
O
= Output
P
OD
= Open Drain (no P diode to VDD)
Note 1: Alternate assignment for CCP2 when CCP2MX is not selected (all Operating modes except
Microcontroller).
2: Default assignment when CCP2MX is set.
3: External memory interface functions are only available on PIC18F8X20 devices.
4: CCP2 is multiplexed with this pin by default when configured in Microcontroller mode. Otherwise, it is
multiplexed with either RB3 or RC1.
5: PORTH and PORTJ are only available on PIC18F8X20 (80-pin) devices.
6: AVDD must be connected to a positive supply and AVSS must be connected to a ground reference for proper
operation of the part in User or ICSP modes. See parameter D001A for details.
2003 Microchip Technology Inc.
Advance Information
DS39609A-page 15
MICROCHIP [ MICROCHIP ]
