PIC12F508-I/P Microchip Technology, PIC12F508-I/P Datasheet - Page 18

• Manufacturer Part Number: PIC12F508-I/P
• Description: IC MCU FLASH 512X12 8DIP
• Manufacturer: Microchip Technology
• Series: PIC® 12Fr

Specifications of PIC12F508-I/P

• Program Memory Type: FLASH
• Program Memory Size: 768B (512 x 12)
• Package / Case: 8-DIP (0.300", 7.62mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Ram Size: 25 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC12F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 25 B
• Interface Type: RS- 232/USB
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 1
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, DV164101, DM163014, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• Package: 8PDIP
• Device Core: PIC
• Family Name: PIC12
• Maximum Speed: 4 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162059 - HEADER INTRFC MPLAB ICD2 8/14PINDM163029 - BOARD PICDEM FOR MECHATRONICSDVA12XP080 - ADAPTER DEVICE FOR MPLAB-ICEAC124001 - MODULE SKT PROMATEII 8DIP/SOIC
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC12F508/509/16F505
4.2
The PIC16F505 device has a 11-bit Program Counter
(PC) capable of addressing a 2K x 12 program memory
space.
The 1K x 12 (0000h-03FFh) for the PIC16F505 are
physically
Accessing a location above this boundary will cause a
wrap-around within the first 1K x 12 space. The
effective Reset vector is at 0000h (see Figure 4-2).
Location 03FFh contains the internal oscillator
calibration value. This value should never be
overwritten.
FIGURE 4-2:
DS41236E-page 18
Note 1:
CALL, RETLW
Program Memory Organization
For The PIC16F505
implemented.
Address 0000h becomes the
effective Reset vector. Location
03FFh contains the MOVLW XX
internal oscillator calibration value.
On-chip Program
Reset Vector
Stack Level 1
Stack Level 2
PROGRAM MEMORY MAP
AND STACK FOR THE
PIC16F505
PC<11:0>
Memory
1024 Words
Refer
(1)
12
to
7FFh
0000h
01FFh
0200h
03FFh
0400h
Figure 4-2.
4.3
Data memory is composed of registers or bytes of
RAM. Therefore, data memory for a device is specified
by its register file. The register file is divided into two
functional groups: Special Function Registers (SFR)
and General Purpose Registers (GPR).
The Special Function Registers include the TMR0
register, the Program Counter (PCL), the STATUS
register, the I/O registers (ports) and the File Select
Register (FSR). In addition, Special Function Registers
are used to control the I/O port configuration and
prescaler options.
The General Purpose Registers are used for data and
control information under command of the instructions.
For the PIC12F508/509, the register file is composed of
7 Special Function Registers, 9 General Purpose
Registers and 16 or 32 General Purpose Registers
accessed by banking (see Figure 4-3 and Figure 4-4).
For the PIC16F505, the register file is composed of 8
Special Function Registers, 8 General Purpose
Registers and 64 General Purpose Registers accessed
by banking (Figure 4-5).
4.3.1
The General Purpose Register file is accessed, either
directly or indirectly, through the File Select Register
(FSR). See Section 4.9 “Indirect Data Addressing:
INDF and FSR Registers”.
Data Memory Organization
GENERAL PURPOSE REGISTER
FILE
© 2009 Microchip Technology Inc.