PIC12F509T-I/MC Microchip Technology, PIC12F509T-I/MC Datasheet - Page 26

• Manufacturer Part Number: PIC12F509T-I/MC
• Description: 1.5 KB Flash, 41 RAM, 6 I/O 8 DFN 2X3mm T/R
• Manufacturer: Microchip Technology
• Series: PIC® 12Fr

Specifications of PIC12F509T-I/MC

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 1.5KB (1K x 12)
• Program Memory Type: FLASH
• Ram Size: 41 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164334 - MODULE SOCKET FOR 8L 2X3MM DFNAC162059 - HEADER INTRFC MPLAB ICD2 8/14PINDVA12XP080 - ADAPTER DEVICE FOR MPLAB-ICE
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC12F508/509/16F505
4.6
The Oscillator Calibration (OSCCAL) register is used to
calibrate the internal precision 4 MHz oscillator. It
contains seven bits for calibration
REGISTER 4-5:
DS41236E-page 26
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-1
bit 0
Note:
R/W-1
CAL6
OSCCAL Register
Erasing the device will also erase the pre-
programmed internal calibration value for
the internal oscillator. The calibration
value must be read prior to erasing the
part so it can be reprogrammed correctly
later.
CAL<6:0>: Oscillator Calibration bits
0111111 = Maximum frequency
•
•
•
0000001
0000000 = Center frequency
1111111
•
•
•
1000000 = Minimum frequency
Unimplemented: Read as ‘0’
R/W-1
CAL5
OSCCAL REGISTER (ADDRESS: 05h)
W = Writable bit
‘1’ = Bit is set
.
R/W-1
CAL4
R/W-1
CAL3
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
CAL2
After you move in the calibration constant, do not
change the value. See Section 7.2.5 “Internal 4 MHz
RC Oscillator”.
R/W-1
CAL1
© 2009 Microchip Technology Inc.
x = Bit is unknown
R/W-1
CAL0
R/W-0
—
bit 0