PIC12F508-E/SN Microchip Technology, PIC12F508-E/SN Datasheet - Page 18
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PIC12F508-E/SN
Manufacturer Part Number
PIC12F508-E/SN
Description
IC MCU FLASH 512X12 8SOIC
Manufacturer
Microchip Technology
Series
PIC® 12Fr
Datasheets
1.PIC12F509T-ISN.pdf
(110 pages)
2.PIC12F509T-ISN.pdf
(4 pages)
3.PIC12F509T-ISN.pdf
(20 pages)
Specifications of PIC12F508-E/SN
Core Size
8-Bit
Program Memory Size
768B (512 x 12)
Core Processor
PIC
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
5
Program Memory Type
FLASH
Ram Size
25 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
8-SOIC (3.9mm Width)
Controller Family/series
PIC12
No. Of I/o's
6
Ram Memory Size
25Byte
Cpu Speed
4MHz
No. Of Timers
1
Digital Ic Case Style
SOIC
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
+ 125 C
Mounting Style
SMD/SMT
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
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC162059 - HEADER INTRFC MPLAB ICD2 8/14PIN
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Details
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.