PIC18F258-ESLASHPSQTP datasheet(12/402 Pages) MICROCHIP

12 / 402 page

PIC18FXX8

DS41159E-page 10

TABLE 1-2:

PIC18FXX8 PINOUT I/O DESCRIPTIONS

Pin Name

Pin Number

Type

Buffer

Type

Description

PIC18F248/258

PIC18F448/458

SPDIP, SOIC

PDIP

TQFP

PLCC

MCLR/VPP

MCLR

VPP

—

Master Clear (input) or

programming voltage (output).

Master Clear (Reset) input.

This pin is an active low Reset

to the device.

Programming voltage input.

—

12, 13,

33, 34

1, 17,

28, 40

—

These pins should be left

unconnected.

OSC1/CLKI

OSC1

CLKI

133014

CMOS/ST

CMOS

Oscillator crystal or external clock

input.

Oscillator crystal input or

external clock source input. ST

buffer when configured in RC

mode; otherwise, CMOS.

External clock source input.

Always associated with pin

function OSC1 (see OSC1/

CLKI, OSC2/CLKO pins).

OSC2/CLKO/RA6

OSC2

CLKO

RA6

I/O

—

TTL

Oscillator crystal or clock output.

Oscillator crystal output.

Connects to crystal or

resonator in Crystal Oscillator

mode.

In RC mode, OSC2 pin outputs

CLKO, which has 1/4 the

frequency of OSC1 and

denotes the instruction cycle

rate.

General purpose I/O pin.

Legend: TTL = TTL compatible input

CMOS = CMOS compatible input or output

= Schmitt Trigger input with CMOS levels

Analog = Analog input

= Input

= Output

= Power

= Open-Drain (no P diode to VDD)

PIC18F258-E/PSQTP 数据表(PDF) 12 Page - Microchip Technology

PIC18F258-E/PSQTP 数据表(HTML) 12 Page - Microchip Technology

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

数据表下载