PIC16F57 Microchip Technology Inc., PIC16F57 Datasheet - Page 11

• Manufacturer Part Number: PIC16F57
• Description: Flash-based, 8-bit Cmos Microcontroller Series
• Manufacturer: Microchip Technology Inc.

TABLE 2-1:
© 2007 Microchip Technology Inc.
RA0
RA1
RA2
RA3
RB0
RB1
RB2
RB3
RB4
RB5
RB6/ICSPCLK
RB7/ICSPDAT
T0CKI
MCLR/V
OSC1/CLKIN
OSC2/CLKOUT
V
V
Legend: I
DD
SS
Name
PP
O
ST
= input
= output
= Schmitt Trigger input
PIC16F54 PINOUT DESCRIPTION
Function
ICSPCLK
ICSPDAT
CLKOUT
T0CKI
MCLR
CLKIN
OSC1
OSC2
RA0
RA1
RA2
RA3
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
V
V
V
PP
DD
SS
Power
Power
Input
XTAL
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
ST
ST
HV
ST
—
—
Output
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
CMOS
XTAL
Type
—
—
—
—
—
—
—
—
I/O
—
TTL = TTL input
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Bidirectional I/O pin
Serial Programming Clock
Bidirectional I/O pin
Serial Programming I/O
Clock input to Timer0. Must be tied to V
reduce current consumption.
Active-low Reset to device. Voltage on the MCLR/V
not exceed V
mode.
Programming voltage input
Oscillator crystal input
External clock source input
Crystal Oscillator mode.
In RC mode, OSC2 pin can output CLKOUT, which has 1/4 the
frequency of OSC1.
Positive supply for logic and I/O pins
Ground reference for logic and I/O pins
Oscillator crystal output. Connects to crystal or resonator in
= input/output
= Not Used
DD
to avoid unintended entering of Programming
CMOS = CMOS output
XTAL
HV
Description
= Crystal input/output
= High Voltage
SS
PIC16F5X
or V
DD,
DS41213D-page 9
if not in use, to
PP
pin must