12F508 Microchip Technology, 12F508 Datasheet - Page 15

• Manufacturer Part Number: 12F508
• Description: Search -----> PIC12F508
• Manufacturer: Microchip Technology

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TABLE 3-3:
© 2005 Microchip Technology Inc.
RB0/ICSPDAT
RB1/ICSPCLK
RB2
RB3/MCLR/V
RB4/OSC2/CLKOUT
RB5/OSC1/CLKIN
RC0
RC1
RC2
RC3
RC4
RC5/T0CKI
V
V
Legend: I = Input, O = Output, I/O = Input/Output, P = Power, — = Not used, TTL = TTL input,
DD
SS
Name
ST = Schmitt Trigger input
PP
PIC16F505 PINOUT DESCRIPTION
ICSPDAT
ICSPCLK
Function
CLKOUT
CLKIN
MCLR
OSC2
OSC1
T0CKI
RC0
RC1
RC2
RC3
RC4
RC5
RB0
RB1
RB2
RB3
RB4
RB5
V
V
V
DD
PP
SS
Input
XTAL
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
ST
ST
ST
—
—
—
—
—
Output
CMOS Bidirectional I/O pin. Can be software programmed for internal
CMOS In-Circuit Serial Programming™ data pin.
CMOS Bidirectional I/O pin. Can be software programmed for internal
CMOS In-Circuit Serial Programming clock pin.
CMOS Bidirectional I/O pin.
CMOS Bidirectional I/O pin. Can be software programmed for internal
CMOS In EXTRC and INTRC modes, the pin output can be
CMOS Bidirectional I/O pin.
CMOS Bidirectional I/O pin.
CMOS Bidirectional I/O pin.
CMOS Bidirectional I/O pin.
CMOS Bidirectional I/O pin.
CMOS Bidirectional I/O pin.
CMOS Bidirectional I/O pin.
XTAL
Type
—
—
—
—
—
—
P
P
Preliminary
weak pull-up and wake-up from Sleep on pin change.
weak pull-up and wake-up from Sleep on pin change.
Input port. Can be software programmed for internal weak
pull-up and wake-up from Sleep on pin change.
Master Clear (Reset). When configured as MCLR, this pin is
an active-low Reset to the device. Voltage on MCLR/V
not exceed V
will enter Programming mode. Weak pull-up always on if
configured as MCLR.
Programming voltage input.
weak pull-up and wake-up from Sleep on pin change.
Oscillator crystal output. Connections to crystal or resonator in
Crystal Oscillator mode (XT, HS and LP modes only).
configured for CLKOUT, which has 1/4 the frequency of OSC1
and denotes the instruction cycle rate.
External clock source input.
Clock input to TMR0.
Positive supply for logic and I/O pins.
Ground reference for logic and I/O pins.
Crystal input.
PIC12F508/509/16F505
DD
during normal device operation or the device
Description
DS41236B-page 13
PP
must