PIC12F509-I/P Microchip Technology Inc., PIC12F509-I/P Datasheet - Page 42

• Manufacturer Part Number: PIC12F509-I/P
• Description: 8 PIN, 1.5 KB FLASH, 41 RAM, 6 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC12F509-I/P

• Cpu Speed: 1 MIPS
• Eeprom Memory: 0 Bytes
• Frequency: 4 MHz
• Input Output: 6
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 8-pin PDIP
• Programmable Memory: 1.5K Bytes
• Ram Size: 41 Bytes
• Speed: 4 MHz
• Timers: 1-8-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC12F508/509/16F505
REGISTER 7-2:
DS41236B-page 40
bit 11
bit 11-6 Unimplemented: Read as ‘0’
bit 5
bit 4
bit 3
bit 2-0
—
MCLRE: RB3/MCLR Pin Function Select bit
1 = RB3/MCLR pin function is MCLR
0 = RB3/MCLR pin function is digital I/O, MCLR internally tied to V
CP: Code Protection bit
1 = Code protection off
0 = Code protection on
WDTE: Watchdog Timer Enable bit
1 = WDT enabled
0 = WDT disabled
FOSC<1:0>: Oscillator Selection bits
111 = External RC oscillator/CLKOUT function on RB4/OSC2/CLKOUT pin
110 = External RC oscillator/RB4 function on RB4/OSC2/CLKOUT pin
101 = Internal RC oscillator/CLKOUT function on RB4/OSC2/CLKOUT pin
100 = Internal RC oscillator/RB4 function on RB4/OSC2/CLKOUT pin
011 = EC oscillator/RB4 function on RB4/OSC2/CLKOUT pin
010 = HS oscillator
001 = XT oscillator
000 = LP oscillator
Legend:
R = Readable bit
-n = Value at POR
Note 1: Refer to the “PIC16F505 Memory Programming Specifications” (DS41226) to determine how to
—
access the Configuration Word. The Configuration Word is not user addressable during device
operation.
CONFIGURATION WORD FOR PIC16F505
—
—
W = Writable bit
‘1’ = bit is set
—
Preliminary
—
MCLRE
U = Unimplemented bit, read as ‘0’
‘0’ = bit is cleared
CP
(1)
DD
WDTE
© 2005 Microchip Technology Inc.
FOSC2
x = bit is unknown
FOSC1
FOSC0
bit 0