PIC16C71 datasheet(17/337 Pages) MICROCHIP

17 / 337 page

DS30234D-page 17

PIC16C6X

PORTD can be a bi-directional I/O port or parallel slave port

for interfacing to a microprocessor bus.

RD0/PSP0

I/O

ST/TTL(6)

RD1/PSP1

I/O

ST/TTL(6)

RD2/PSP2

I/O

ST/TTL(6)

RD3/PSP3

I/O

ST/TTL(6)

RD4/PSP4

I/O

ST/TTL(6)

RD5/PSP5

I/O

ST/TTL(6)

RD6/PSP6

I/O

ST/TTL(6)

RD7/PSP7

I/O

ST/TTL(6)

PORTE is a bi-directional I/O port.

RE0/RD

I/O

ST/TTL(6)

RE0 can also be read control for the parallel slave port.

RE1/WR

I/O

ST/TTL(6)

RE1 can also be write control for the parallel slave port.

RE2/CS

I/O

ST/TTL(6)

RE2 can also be select control for the parallel slave port.

VSS

12,31

13,34

6,29

—

Ground reference for logic and I/O pins.

VDD

11,32

12,35

7,28

—

Positive supply for logic and I/O pins.

—

1,17,

28,40

12,13,

33,34

—

These pins are not internally connected. These pins should

be left unconnected.

TABLE 3-3:

PIC16C64/64A/R64/65/65A/R65/67 PINOUT DESCRIPTION (Cont.’d)

Pin Name

DIP

Pin#

PLCC

Pin#

TQFP

MQFP

Pin#

Type

Buffer

Type

Description

Legend: I = input

O = output

I/O = input/output

P = power

— = Not used

TTL = TTL input

ST = Schmitt Trigger input

Note 1:

Pin functions T1OSO and T1OSI are reversed on the PIC16C64.

CCP2 and the USART are not available on the PIC16C64/64A/R64.

This buffer is a Schmitt Trigger input when conﬁgured in RC oscillator mode and a CMOS input otherwise.

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

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

This buffer is a Schmitt Trigger input when conﬁgured as general purpose I/O and a TTL input when used in the Parallel Slave

Port mode (for interfacing to a microprocessor bus).

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