PIC12F508-I/SN Microchip Technology, PIC12F508-I/SN Datasheet - Page 2

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

Specifications of PIC12F508-I/SN

• Program Memory Type: FLASH
• Program Memory Size: 768B (512 x 12)
• Package / Case: 8-SOIC (3.9mm Width)
• 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: 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: Lead free / RoHS Compliant

PIC12F508/509
2.0
2.1
The user memory space extends from (0x000-0x1FF)
on the PIC12F508 and (0x000-0x3FF) on the
PIC12F509. In Program/Verify mode, the program
memory space extends from (0x000-0x3FF) for the
PIC12F508 and (0x000-0x7FF) for the PIC12F509.
The first half, (0x000-0x1FF) and (0x000-0x3FF),
respectively, is user program memory. The second half,
(0x200-0x3FF) and (0x400-0x7FF), respectively, is
configuration memory. The PC will increment from
(0x000-0x1FF) and (0x000-0x3FF), respectively, then
to 0x200 and 0x400, respectively (not to 0x000).
In the configuration memory space, 0x200-0x23F for
the PIC12F508 and 0x400-0x43F for the PIC12F509
are physically implemented. However, only locations
0x200-0x203 and 0x400-0x403 are available. Other
locations are reserved.
2.2
A user may store identification information (ID) in four
user ID locations. The user ID locations are mapped in
[0x200:0x203] and [0x400:0x403], respectively. It is
recommended that the user use only the four Least
Significant bits (LSb) of each user ID location and
program the upper 8 bits as ‘1’s. The user ID locations
read out normally, even after code protection is
enabled. It is recommended that user ID location is
written as ‘1111 1111 bbbb’ where ‘bbbb’ is user
ID information.
2.3
The Configuration Word is physically located at 0x3FF
and 0x7FF, respectively. It is only available upon
Program mode entry. Once an Increment Address
command is issued, the Configuration Word is no
longer accessible, regardless of the address of the
program counter.
DS41227E-page 2
Note:
MEMORY MAPPING
User Program Memory Map
User ID Locations
Configuration Word
By convention, the Configuration Word is
stored at the logical address location of
0xFFF within the hex file generated for the
PIC12F508/509. This logical address
location may not reflect the actual physical
address for the part itself. It is the respon-
sibility of the programming software to
retrieve the Configuration Word from the
logical address within the hex file and
granulate the address to the proper
physical location when programming.
Preliminary
FIGURE 2-1:
FIGURE 2-2:
2.4
The oscillator Calibration bits are stored at the Reset
vector as the operand of a MOVLW instruction. Program-
ming interfaces must allow users to program the
Calibration bits themselves for custom trimming of the
INTOSC. Capability for programming the Calibration
bits when programming the entire memory array must
also be maintained for backwards compatibility.
2.5
The backup OSCCAL value, 0x204/0x404, is a factory
location where the OSCCAL value is stored during test-
ing of the INTOSC. This location is not erased during a
standard Bulk Erase, but is erased if the PC is moved
into configuration memory prior to invoking a Bulk
Erase. If this value is erased, it is the user’s responsi-
bility to rewrite it back to this location for future use.
Oscillator Calibration Bits
Backup OSCCAL Value
Backup OSCCAL value
Backup OSCCAL value
User ID Locations
Configuration Word
Configuration Word
Program Memory
User ID Locations
Memory (Page 1)
Unimplemented
Unimplemented
On-chip User
Reset Vector
On-chip User
On-chip User
Reset Vector
PIC12F508 PROGRAM
MEMORY MAP
PIC12F509 PROGRAM
MEMORY MAP
Program
Program
Reserved
Reserved
© 2007 Microchip Technology Inc.
000h
0FFh
100h
1FEh
1FFh
200h
203h
204h
205h
23Fh
240h
3FEh
3FFh
400h
403h
404h
405h
43Fh
440h
7FEh
7FFh
000h
1FFh
200h
3FEh
3FFh