PIC18F2458 Datasheet, PDF (20/46 Pages) Microchip Technology – 28/40/44-Pin High-Performance, Enhanced Flash, USB Microcontrollers with 12-Bit A/D and nanoWatt Technology

PIC18F2458/2553/4458/4553
TABLE 1-3: PIC18F4458/4553 PINOUT I/O DESCRIPTIONS (CONTINUED)
Pin Name
Pin Number
Pin Buffer
PDIP QFN TQFP ^{Type Type}
Description
PORTE is a bidirectional I/O port.
RE0/AN5/CK1SPP
RE0
AN5
CK1SPP
8 25 25
I/O ST
Digital I/O.
I Analog Analog input 5.
O—
SPP clock 1 output.
RE1/AN6/CK2SPP
RE1
AN6
CK2SPP
9 26 26
I/O ST
Digital I/O.
I Analog Analog input 6.
O—
SPP clock 2 output.
RE2/AN7/OESPP
RE2
AN7
OESPP
10 27 27
I/O ST
Digital I/O.
I Analog Analog input 7.
O—
SPP output enable output.
RE3
— — — — — See MCLR/VPP/RE3 pin.
VSS
12, 6, 30, 6, 29 P — Ground reference for logic and I/O pins.
31 31
VDD
11, 32 7, 8, 7, 28 P — Positive supply for logic and I/O pins.
28, 29
VUSB
NC/ICCK/ICPGC⁽³⁾
ICCK
ICPGC
NC/ICDT/ICPGD⁽³⁾
ICDT
ICPGD
NC/ICRST/ICVPP⁽³⁾
ICRST
ICVPP
NC/ICPORTS⁽³⁾
ICPORTS
18 37 37
Internal USB transceiver power supply.
O—
When the internal USB regulator is enabled, VUSB is
the regulator output.
P—
When the internal USB regulator is disabled, VUSB
is the power input for the USB transceiver.
— — 12
No Connect or dedicated ICD/ICSP™ port clock.
I/O ST
In-Circuit Debugger clock.
I/O ST
ICSP programming clock.
— — 13
No Connect or dedicated ICD/ICSP port clock.
I/O ST
In-Circuit Debugger data.
I/O ST
ICSP programming data.
— — 33
I
P
No Connect or dedicated ICD/ICSP port Reset.
—
Master Clear (Reset) input.
—
Programming voltage input.
— — 34 P
— No Connect or 28-pin device emulation.
Enable 28-pin device emulation when connected
to VSS.
NC
— 13 — — — No Connect.
Legend:
Note 1:
2:
3:
TTL = TTL compatible input
ST = Schmitt Trigger input with CMOS levels
O = Output
CMOS = CMOS compatible input or output
I
= Input
P
= Power
Alternate assignment for CCP2 when CCP2MX Configuration bit is cleared.
Default assignment for CCP2 when CCP2MX Configuration bit is set.
These pins are No Connect unless the ICPRT Configuration bit is set. For NC/ICPORTS, the pin is No
Connect unless ICPRT is set and the DEBUG Configuration bit is cleared.
DS39887B-page 18
Preliminary
© 2007 Microchip Technology Inc.