CF745 データシートの表示（PDF） - Microchip Technology

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CF745

EPROM/ROM-Based 8-Bit CMOS Microcontroller Series

Microchip Technology 

PIC16C5X

TABLE 3-1:

PINOUT DESCRIPTION - PIC16C52, PIC16C54s, PIC16CR54s, PIC16C56s,

PIC16CR56s, PIC16C58s, PIC16CR58s

Name

DIP, SOIC SSOP I/O/P Input

No.

No. Type Levels

Description

RA0

RA1

RA2

RA3

RB0

RB1

RB2

RB3

RB4

RB5

RB6

RB7

T0CKI

MCLR/VPP

17

19 I/O TTL

18

20 I/O TTL

1

1 I/O TTL

2

2 I/O TTL

6

7 I/O TTL

7

8 I/O TTL

8

9 I/O TTL

9

10 I/O TTL

10

11 I/O TTL

11

12 I/O TTL

12

13 I/O TTL

13

14 I/O TTL

3

3

I

ST

4

4

I

ST

OSC1/CLKIN

16

OSC2/CLKOUT

15

18

I

ST

17 O

—

VDD

14

15,16 P

—

VSS

5

5,6 P

—

Legend: I = input, O = output, I/O = input/output,

P = power, — = Not Used, TTL = TTL input,

ST = Schmitt Trigger input

Bi-directional I/O port

Bi-directional I/O port

Clock input to Timer0. Must be tied to VSS or VDD, if not in

use, to reduce current consumption.

Master clear (reset) input/programming voltage input. This

pin is an active low reset to the device. Voltage on the

MCLR/VPP pin must not exceed VDD to avoid unintended

entering of programming mode.

Oscillator crystal input/external clock source input.

Oscillator crystal output. Connects to crystal or resonator 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.

Positive supply for logic and I/O pins.

Ground reference for logic and I/O pins.

© 1998 Microchip Technology Inc.

Preliminary

DS30453B-page 11

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