PIC32MX440F256H-80I Datasheet, PDF (32/646 Pages) Microchip Technology – 64/100-Pin General Purpose and USB 32-Bit Flash Microcontrollers

PIC32MX3XX/4XX
TABLE 1-5: PIC32MX3XX/4XX PINOUT DESCRIPTIONS – USB (CONTINUED)
Function
Pin Number
64-pin 100-pin
I/O
Input
Buffer
Description
RG0
—
90
I/O
ST PORTG Digital I/O
RG1
—
89
I/O
ST
RG2
RG3
RG6
37
57
I/O
ST
Note: On specific 100-pin devices, the instruction TRACE port
is multiplexed with PORTA pins RA6, RA7; PORTG pins
36
56
I/O
ST
RG12, RG13 and RG14. At Power-on Reset, these pins
4
10
I/O
ST
are general purpose I/O pins. To maintain these pins as
RG7
RG8
RG9
5
11
I/O
ST
6
12
I/O
ST
8
14
I/O
ST
general purpose I/O pins, the user’s application code
must maintain TROEN (DDPCON<2>) bit = 0. To use
these pins as instruction TRACE pins, TROEN must be
set = 1.
RG12
—
96
I/O
ST
RG13
—
97
I/O
ST
RG14
—
95
I/O
ST
RG15
—
1
I/O
ST
RTCC
42
68
O
— Real-Time Clock Alarm Output
SCK1
—
70
O
—
SCK2
4
10
I/O
ST SPI2 Serial Clock Output
SCL1
44
66
I/O
I²C I2C1 Synchronous Serial Clock Input/Output
SCL2
32
58
I/O
I²C I2C2 Synchronous Serial Clock Input/Output
SDA1
43
67
I/O
I²C I2C1 Data Input/Output
SDA2
31
59
I/O
I²C I2C2 Data Input/Output
SDI1
—
9
I
ST
SDI2
5
11
I
ST SPI2 Serial Data Input
SDO1
—
72
O
—
SDO2
6
12
O
— SPI2 Serial Data Output
SOSCI
47
73
I
ANA Secondary Oscillator/Timer1 External Clock Input
SOSCO
48
74
O
ANA Secondary Oscillator/Timer1 External Clock Output
SS1
—
69
I/O
ST Slave Select Input/Frame Select Output (SPI1)
SS2
8
14
I/O
ST Slave Select Input/Frame Select Output (SPI2)
T1CK
48
74
I
ST Timer1 External Clock Input
T2CK
—
6
I
ST Timer2 External Clock Input
T3CK
—
7
I
ST Timer3 External Clock Input
T4CK
—
8
I
ST Timer4 External Clock Input
T5CK
—
9
I
ST Timer5 External Clock Input
TCK
27
38
I
ST JTAG Test Clock/Programming Clock Input
TDI
28
60
I
ST JTAG Test Data/Programming Data Input
TDO
24
61
O
— JTAG Test Data Output
TMS
23
17
I
ST JTAG Test Mode Select Input
TRCLK
—
91
O
— Trace Clock
TRD0
—
97
O
— Trace Data Bit 0
TRD1
—
96
O
— Trace Data Bit 1
TRD2
—
95
O
— Trace Data Bit 2
TRD3
—
92
O
— Trace Data Bit 3
Legend:
Note:
TTL = TTL input buffer
ANA = Analog level input/output
ST = Schmitt Trigger input buffer
I²C™ = I²C/SMBus input buffer
In some cases, I/O pins are multiplexed with more than one peripheral. In general, the dominant output control of a
multiplexed I/O pin can be determined by the order of the peripheral output names assigned to a pin (read from left to
right). Multiplexed peripheral inputs have no priority.
DS61143E-page 30
Preliminary
© 2008 Microchip Technology Inc.