12F508 Microchip Technology, 12F508 Datasheet - Page 13

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

www.DataSheet.in
TABLE 3-2:
© 2005 Microchip Technology Inc.
GP0/ICSPDAT
GP1\ICSPCLK
GP2/T0CKI
GP3/MCLR/V
GP4/OSC2
GP5/OSC1/CLKIN
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
PIC12F508/509 PINOUT DESCRIPTION
ICSPDAT
ICSPCLK
Function
CLKIN
T0CKI
MCLR
OSC2
OSC1
GP0
GP1
GP2
GP3
GP4
GP5
V
V
V
DD
PP
SS
Input
XTAL
Type
TTL
TTL
TTL
TTL
TTL
TTL
HV
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.
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.
Clock input to TMR0.
Input pin. 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.
Oscillator crystal output. Connections to crystal or resonator in
Crystal Oscillator mode (XT and LP modes only, GPIO in other
modes).
Oscillator crystal input.
External clock source input.
Positive supply for logic and I/O pins.
Ground reference for logic and I/O pins.
PIC12F508/509/16F505
DD
during normal device operation or the device
Description
DS41236B-page 11
PP
must