PIC16C641 datasheet(13/136 Pages) MICROCHIP

13 / 136 page

Preliminary

DS30559A-page 13

PIC16C64X & PIC16C66X

TABLE 3-2:

PIC16C661/662 PINOUT DESCRIPTION

Name

DIP

Pin #

QFP

Pin #

PLCC

Pin #

I/O/P

Type

Buffer

Type

Description

OSC1/CLKIN

ST/CMOS Oscillator crystal input or external clock source

input.

OSC2/CLKOUT

—

Oscillator crystal output. Connects to crystal or reso-

nator in crystal oscillator mode. In RC mode, OSC2

pin outputs CLKOUT which has 1/4 the frequency of

OSC1, and denotes the instruction cycle rate.

MCLR/VPP

I/P

Master clear (reset) input or programming voltage

input. This pin is an active low reset to the device.

PORTA is a bi-directional I/O port.

RA0/AN0

I/O

Analog comparator input.

RA1/AN1

I/O

Analog comparator input.

RA2/AN2/VREF

I/O

Analog comparator input or VREF output.

RA3/AN3

I/O

Analog comparator input or comparator output.

RA4/T0CKI

I/O

Can be selected to be the clock input to the

Timer0 timer/counter or a comparator output.

Output is open drain type.

RA5

I/O

PORTB is a bi-directional I/O port. PORTB can be

software programmed for internal weak pull-ups on

all inputs.

RB0/INT

I/O

TTL/ST(1)

RB0 can also be selected as an external

interrupt pin.

RB1

I/O

TTL

RB2

I/O

TTL

RB3

I/O

TTL

RB4

I/O

TTL

Interrupt on change pin.

RB5

I/O

TTL

Interrupt on change pin.

RB6

I/O

TTL/ST(2)

Interrupt on change pin. Serial programming

clock.

RB7

I/O

TTL/ST(2)

Interrupt on change pin. Serial programming

data.

PORTC is a bi-directional I/O port.

RC0

I/O

RC1

I/O

RC2

I/O

RC3

I/O

RC4

I/O

RC5

I/O

RC6

I/O

RC7

I/O

Legend:

O = output

I/O = input/output

P = power

I = input

— = not used

ST = Schmitt Trigger input

TTL = TTL input

Note 1: This buffer is a Schmitt Trigger input when conﬁgured as the external interrupt.

2: This buffer is a Schmitt Trigger input when used in serial programming mode.

3: This buffer is a Schmitt Trigger input when conﬁgured as a general purpose I/O and a TTL input when used

in the Parallel Slave Port Mode (for interfacing to a microprocessor port).

PIC16C641 Folha de dados(PDF) 13 Page - Microchip Technology

PIC16C641 Folha de dados(HTML) 13 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

Folha de dados Download

Ligação URL