Microchip Technology MCU PIC PIC18F87K22-I/PTRSL TQFP-80 MCP PIC18F87K22-I/PTRSL Scheda Tecnica
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Codici prodotto
PIC18F87K22-I/PTRSL
PIC18F87K22 FAMILY
DS39960D-page 36
2009-2011 Microchip Technology Inc.
PORTJ is a bidirectional I/O port.
RJ0/ALE
RJ0
ALE
ALE
62
I/O
O
ST
—
Digital I/O.
External memory address latch enable.
External memory address latch enable.
RJ1/OE
RJ1
OE
OE
61
I/O
O
ST
—
Digital I/O.
External memory output enable.
External memory output enable.
RJ2/WRL
RJ2
WRL
WRL
60
I/O
O
ST
—
Digital I/O.
External memory write low control.
External memory write low control.
RJ3/WRH
RJ3
WRH
WRH
59
I/O
O
ST
—
Digital I/O.
External memory high control.
External memory high control.
RJ4/BA0
RJ4
BA0
BA0
39
I/O
O
ST
—
Digital I/O.
External Memory Byte Address 0 control
External Memory Byte Address 0 control
RJ5/CE
RJ5
CE
CE
40
I/O
O
ST
—
Digital I/O
External memory chip enable control.
External memory chip enable control.
RJ6/LB
RJ6
LB
LB
41
I/O
O
ST
—
Digital I/O.
External memory low byte control.
External memory low byte control.
RJ7/UB
RJ7
UB
UB
42
I/O
O
ST
—
Digital I/O.
External memory high byte control.
External memory high byte control.
V
SS
11, 31, 51, 70
P
—
Ground reference for logic and I/O pins.
V
DD
32, 48, 71
P
—
Positive supply for logic and I/O pins.
AV
SS
26
P
—
Ground reference for analog modules.
AV
DD
25
P
—
Positive supply for analog modules.
ENVREG
24
I
ST
Enable for on-chip voltage regulator.
V
DDCORE
/V
CAP
V
DDCORE
V
CAP
12
P
—
Core logic power or external filter capacitor connection.
External filter capacitor connection (regulator
enabled/disabled).
enabled/disabled).
TABLE 1-4:
PIC18F8XK22 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin
Type
Buffer
Type
Description
TQFP
Legend:
TTL = TTL compatible input
CMOS = CMOS compatible input or output
ST = Schmitt Trigger input with CMOS levels
Analog = Analog input
I
= Input
O
= Output
P
= Power
OD
= Open-Drain (no P diode to V
DD
)
I
2
C = I
2
C™/SMBus
Note 1:
Default assignment for ECCP2 when the CCP2MX Configuration bit is set.
2:
Alternate assignment for ECCP2 when the CCP2MX Configuration bit is cleared.
3:
Not available on PIC18F65K22 and PIC18F85K22 devices.
4:
PSP is available only in Microcontroller mode.
5:
The CC6, CCP7, CCP8 and CCP9 pin placement depends on the setting of the ECCPMX Configuration bit
(CONFIG3H<1>).
(CONFIG3H<1>).