1999 Microchip Technology Inc.
DS40139E-page 1
Devices included in this Data Sheet:
PIC12C508
PIC12C508A
PIC12CE518
PIC12C509
PIC12C509A
PIC12CE519
PIC12CR509A
Note:
Throughout this data sheet PIC12C5XX
refers to the PIC12C508, PIC12C509,
PIC12C508A, PIC12C509A,
PIC12CR509A, PIC12CE518 and
PIC12CE519. PIC12CE5XX refers to
PIC12CE518 and PIC12CE519.
High-Performance RISC CPU:
Only 33 single word instructions to learn
All instructions are single cycle (1
s) except for
program branches which are two-cycle
Operating speed: DC - 4 MHz clock input
DC - 1
s instruction cycle
12-bit wide instructions
8-bit wide data path
Seven special function hardware registers
Two-level deep hardware stack
Direct, indirect and relative addressing modes for
data and instructions
Internal 4 MHz RC oscillator with programmable
calibration
In-circuit serial programming
Device
Memory
EPROM
Program
ROM
Program
RAM
Data
EEPROM
Data
PIC12C508
512 x 12
25
PIC12C508A
512 x 12
25
PIC12C509
1024 x 12
41
PIC12C509A
1024 x 12
41
PIC12CE518
512 x 12
25
16
PIC12CE519
1024 x 12
41
16
PIC12CR509A
1024 x 12
41
Peripheral Features:
8-bit real time clock/counter (TMR0) with 8-bit
programmable prescaler
Power-On Reset (POR)
Device Reset Timer (DRT)
Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
Programmable code-protection
1,000,000 erase/write cycle EEPROM data
memory
EEPROM data retention > 40 years
Power saving SLEEP mode
Wake-up from SLEEP on pin change
Internal weak pull-ups on I/O pins
Internal pull-up on MCLR pin
Selectable oscillator options:
- INTRC: Internal 4 MHz RC oscillator
- EXTRC: External low-cost RC oscillator
- XT:
Standard crystal/resonator
- LP:
Power saving, low frequency crystal
CMOS Technology:
Low power, high speed CMOS EPROM/ROM
technology
Fully static design
Wide operating voltage range
Wide temperature range:
- Commercial: 0C to +70C
- Industrial: -40C to +85C
- Extended: -40C to +125C
Low power consumption
- < 2 mA @ 5V, 4 MHz
- 15
A typical @ 3V, 32 KHz
- < 1
A typical standby current
PIC12C5XX
8-Pin, 8-Bit CMOS Microcontrollers
PIC12C5XX
DS40139E-page 2
1999 Microchip Technology Inc.
Pin Diagram - PIC12C508/509
Pin Diagram - PIC12C508A/509A,
PIC12CE518/519
Pin Diagram - PIC12CR509A
PDIP, 208 mil SOIC, Windowed Ceramic Side Brazed
8
7
6
5
1
2
3
4
V
SS
GP0
GP1
GP2/T0CKI
GP5/OSC1/CLKIN
GP4/OSC2
GP3/MCLR/V
PP
V
DD
PI
C1
2C
508
PI
C1
2C
509
PDIP, 150 & 208 mil SOIC, Windowed CERDIP
8
7
6
5
1
2
3
4
PI
C
1
2C
E51
8
V
SS
GP0
GP1
GP2/T0CKI
PI
C
1
2C
E51
9
GP5/OSC1/CLKIN
GP4/OSC2
GP3/MCLR/V
PP
V
DD
PI
C1
2C
508
A
PI
C
12C
509A
PDIP, 150 & 208 mil SOIC
8
7
6
5
1
2
3
4
V
SS
GP0
GP1
GP2/T0CKI
PI
C1
2C
R5
09
A
GP5/OSC1/CLKIN
GP4/OSC2
GP3/MCLR/V
PP
V
DD
Device Differences
Note 1: If you change from the PIC12C50X to the PIC12C50XA or to the PIC12CR50XA, please verify
oscillator characteristics in your application.
Note 2: See Section 7.2.5 for OSCCAL implementation differences.
Device
Voltage
Range
Oscillator
Oscillator
Calibration
2
(Bits)
Process
Technology
(Microns)
PIC12C508A
3.0-5.5
See Note 1
6
0.7
PIC12LC508A
2.5-5.5
See Note 1
6
0.7
PIC12C508
2.5-5.5
See Note 1
4
0.9
PIC12C509A
3.0-5.5
See Note 1
6
0.7
PIC12LC509A
2.5-5.5
See Note 1
6
0.7
PIC12C509
2.5-5.5
See Note 1
4
0.9
PIC12CR509A
2.5-5.5
See Note 1
6
0.7
PIC12CE518
3.0-5.5
-
6
0.7
PIC12LCE518
2.5-5.5
-
6
0.7
PIC12CE519
3.0-5.5
-
6
0.7
PIC12LCE519
2.5-5.5
-
6
0.7
1999 Microchip Technology Inc.
DS40139E-page 3
PIC12C5XX
TABLE OF CONTENTS
1.0
General Description............................................................................................................................................... 4
2.0
PIC12C5XX Device Varieties ................................................................................................................................ 7
3.0
Architectural Overview........................................................................................................................................... 9
4.0
Memory Organization .......................................................................................................................................... 13
5.0
I/O Port ................................................................................................................................................................ 21
6.0
Timer0 Module and TMR0 Register .................................................................................................................... 25
7.0
EEPROM Peripheral Operation ........................................................................................................................... 29
8.0
Special Features of the CPU ............................................................................................................................... 35
9.0
Instruction Set Summary ..................................................................................................................................... 47
10.0 Development Support.......................................................................................................................................... 59
11.0 Electrical Characteristics - PIC12C508/PIC12C509 ............................................................................................ 65
12.0 DC and AC Characteristics - PIC12C508/PIC12C509 ........................................................................................ 75
13.0 Electrical Characteristics PIC12C508A/PIC12C509A/PIC12LC508A/PIC12LC509A/PIC12CR509A/
PIC12CE518/PIC12CE519/
PIC12LCE518/PIC12LCE519/PIC12LCR509A ................................................................................................... 79
14.0 DC and AC Characteristics
PIC12C508A/PIC12C509A/PIC12LC508A/PIC12LC509A/PIC12CE518/PIC12CE519/PIC12CR509A/
PIC12LCE518/PIC12LCE519/ PIC12LCR509A .................................................................................................. 93
15.0 Packaging Information......................................................................................................................................... 99
Index ........................................................................................................................................................................... 105
PIC12C5XX Product Identification System ................................................................................................................ 109
Sales and Support: ..................................................................................................................................................... 109
To Our Valued Customers
Most Current Data Sheet
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You can determine the version of a data sheet by examining its literature number found on the bottom outside corner
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ument DS30000.
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An errata sheet may exist for current devices, describing minor operational differences (from the data sheet) and rec-
ommended workarounds. As device/documentation issues become known to us, we will publish an errata sheet. The
errata will specify the revision of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
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Corrections to this Data Sheet
We constantly strive to improve the quality of all our products and documentation. We have spent a great deal of time
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We appreciate your assistance in making this a better document.
PIC12C5XX
DS40139E-page 4
1999 Microchip Technology Inc.
1.0
GENERAL DESCRIPTION
The PIC12C5XX from Microchip Technology is a fam-
ily of low-cost, high performance, 8-bit, fully static,
EEPROM/EPROM/ROM-based CMOS microcontrol-
lers. It employs a RISC architecture with only 33 sin-
gle word/single cycle instructions. All instructions are
single cycle (1
s) except for program branches
which take two cycles. The PIC12C5XX delivers per-
formance an order of magnitude higher than its com-
petitors in the same price category. The 12-bit wide
instructions are highly symmetrical resulting in 2:1
code compression over other 8-bit microcontrollers in
its class. The easy to use and easy to remember
instruction set reduces development time signifi-
cantly.
The PIC12C5XX products are equipped with special
features that reduce system cost and power require-
ments. The Power-On Reset (POR) and Device Reset
Timer (DRT) eliminate the need for external reset cir-
cuitry. There are four oscillator configurations to choose
from, including INTRC internal oscillator mode and the
power-saving LP (Low Power) oscillator mode. Power
saving SLEEP mode, Watchdog Timer and code
protection features also improve system cost, power
and reliability.
The PIC12C5XX are available in the cost-effective
One-Time-Programmable (OTP) versions which are
suitable for production in any volume. The customer
can take full advantage of Microchip's price leadership
in OTP microcontrollers while benefiting from the OTP's
flexibility.
The PIC12C5XX products are supported by a full-fea-
tured macro assembler, a software simulator, an in-cir-
cuit emulator, a `C' compiler, fuzzy logic support tools,
a low-cost development programmer, and a full fea-
tured programmer. All the tools are supported on IBM
PC and compatible machines.
1.1
Applications
The PIC12C5XX series fits perfectly in applications
ranging from personal care appliances and security
systems to low-power remote transmitters/receivers.
The EPROM technology makes customizing applica-
tion programs (transmitter codes, appliance settings,
receiver frequencies, etc.) extremely fast and conve-
nient, while the EEPROM data memory technology
allows for the changing of calibration factors and secu-
rity codes. The small footprint packages, for through
hole or surface mounting, make this microcontroller
series perfect for applications with space limitations.
Low-cost, low-power, high performance, ease of use
and I/O flexibility make the PIC12C5XX series very ver-
satile even in areas where no microcontroller use has
been considered before (e.g., timer functions, replace-
ment of "glue" logic and PLD's in larger systems, copro-
cessor applications).
1999 Microchip Technology Inc.
DS40139E-page 5
PIC12C5XX
TABLE 1-1:
PIC12CXXX & PIC12CEXXX FAMILY OF DEVICES
PIC12C508(A) PIC12C509(A) PIC12CR509A PIC12CE518 PIC12CE519 PIC12C671 PIC12C672 PIC12CE673 PIC12CE674
Clock
Maximum
Frequency
of Operation
(MHz)
4
4
4
4
4
10
10
10
10
Memory
EPROM
Program
Memory
512 x 12
1024 x 12
1024 x 12
(ROM)
512 x 12
1024 x 12
1024 x 14
2048 x 14
1024 x 14
2048 x 14
RAM Data
Memory
(bytes)
25
41
41
25
41
128
128
128
128
Peripherals
EEPROM
Data Memory
(bytes)
--
--
--
16
16
--
--
16
16
Timer
Module(s)
TMR0
TMR0
TMR0
TMR0
TMR0
TMR0
TMR0
TMR0
TMR0
A/D Con-
verter (8-bit)
Channels
--
--
--
--
--
4
4
4
4
Features
Wake-up
from SLEEP
on pin
change
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Interrupt
Sources
--
--
--
4
4
4
4
I/O Pins
5
5
5
5
5
5
5
5
5
Input Pins
1
1
1
1
1
1
1
1
1
Internal
Pull-ups
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
In-Circuit
Serial
Programming
Yes
Yes
--
Yes
Yes
Yes
Yes
Yes
Yes
Number of
Instructions
33
33
33
33
33
35
35
35
35
Packages
8-pin DIP,
JW, SOIC
8-pin DIP,
JW, SOIC
8-pin DIP,
SOIC
8-pin DIP,
JW, SOIC
8-pin DIP,
JW, SOIC
8-pin DIP,
JW, SOIC
8-pin DIP,
JW, SOIC
8-pin DIP,
JW
8-pin DIP,
JW
All PIC12CXXX & PIC12CEXXX devices have Power-on Reset, selectable Watchdog Timer, selectable code protect and high I/O
current capability.
All PIC12CXXX & PIC12CEXXX devices use serial programming with data pin GP0 and clock pin GP1.
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