12CE518 Datasheet PDF - Microchip Technology

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12CE518
Microchip Technology

Part Number 12CE518
Description 8-Bit CMOS Microcontroller
Page 30 Pages


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PIC12CE5XX
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8-Pin, 8-Bit CMOS Microcontroller with
EEPROM Data Memory
Devices:
PIC12CE518 and PIC12CE519 are 8-bit microcontrol-
lers packaged in 8-lead packages. They are based on
the Enhanced PIC16C5X family.
High-Performance RISC CPU:
• Only 33 single word instructions to learn
• All instructions are single cycle (1 µs) except for
program branches which are two-cycle
• Operating speed: DC - 4 MHz clock input
DC - 1 µs instruction cycle
Device
EPROM
Program
Memory
RAM
Data
EEPROM
Data
PIC12CE518 512 x 12 25 x 8
16 x 8
PIC12CE519 1024 x 12 41 x 8
16 x 8
• 12-bit wide instructions
• 8-bit wide data path
• Special function hardware registers
• Two-level deep hardware stack
• Direct, indirect and relative addressing modes for
data and instructions
Peripheral Features:
• 8-bit real-time clock/counter (TMR0) with 8-bit
programmable prescaler
• 1,000,000 erase/write cycle EEPROM data
memory
• EEPROM data retention > 40 years
Pin Diagram:
PDIP, SOIC, Windowed CERDIP
VDD
GP5/OSC1/CLKIN
GP4/OSC2
GP3/MCLR/VPP
1
2
3
4
8
7
6
5
VSS
GP0
GP1
GP2/T0CKI
Special Microcontroller Features:
• In-Circuit Serial Programming (ICSP™) of pro-
gram memory (via two pins)
• Internal 4 MHz RC oscillator with programmable
calibration
• Power-on Reset (POR)
• Device Reset Timer (DRT)
• Watchdog Timer (WDT) with its own on-chip RC
oscillator for reliable operation
• Programmable code-protection
• 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/
EEPROM technology
• Fully static design
• Wide temperature range:
- Commercial: 0°C to +70°C
- Industrial: -40°C to +85°C
- Extended: -40°C to +125°C
• Wide operating voltage range:
-Commercial: 3.0V to 5.5V
-Industrial: 3.0V to 5.5V
-Extended: 4.5V to 5.5V
• Low power consumption
- < 2 mA typical @ 5V, 4 MHz
- 15 µA typical @ 3V, 32 kHz
- < 1 µA typical standby current
© 1997 Microchip Technology Inc.
Preliminary
DS40172A-page 1



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PIC12CE5XX
TABLE OF CONTENTS
1.0 General Description..................................................................................................................................................................... 3
2.0 PIC12CE5XX Device Varieties.................................................................................................................................................... 5
3.0 Architectural Overview ................................................................................................................................................................ 7
4.w0 wwM.DemaotarySOhregeant4izUat.iconom................................................................................................................................................................ 11
5.0 PIC12CE518I/O Port ................................................................................................................................................................. 19
6.0 EEPROM Peripheral Operation................................................................................................................................................. 21
7.0 Timer0 Module and TMR0 Register .......................................................................................................................................... 25
8.0 Special Features of the CPU..................................................................................................................................................... 29
9.0 Instruction Set Summary ........................................................................................................................................................... 41
10.0 Development Support................................................................................................................................................................ 53
11.0 Electrical Characteristics - PIC12CE5XX .................................................................................................................................. 57
12.0 DC and AC Characteristics - PIC12CE5XX .............................................................................................................................. 69
13.0 Packaging Information............................................................................................................................................................... 73
14.0 Appendix A ................................................................................................................................................................................ 77
Index .................................................................................................................................................................................................... 83
PIC12CE5XX Product Identification System........................................................................................................................................ 87
To Our Valued Customers
We constantly strive to improve the quality of all our products and documentation. We have spent an exceptional
amount of time to ensure that these documents are correct. However, we realize that we may have missed a few
things. If you find any information that is missing or appears in error, please use the reader response form in the
back of this data sheet to inform us. We appreciate your assistance in making this a better document.
DS40172A-page 2
Preliminary
© 1997 Microchip Technology Inc.



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1.0 GENERAL DESCRIPTION
The 8-pin PIC12CE5XX from Microchip Technology is
a family of low-cost, high performance, 8-bit, fully static,
wwEwP.DRaOtMaS/EhEePeRt4OUM.c-boamsed CMOS microcontrollers. It
employs a RISC architecture with only 33 single word/
single cycle instructions. All instructions are single
cycle (1 µs) except for program branches which take
two cycles. The PIC12CE5XX delivers performance an
order of magnitude higher than its competitors 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 significantly.
The PIC12CE5XX 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. Power saving
SLEEP mode, Watchdog Timer and code protection
features improve system cost, power and reliability.
The PIC12CE5XX 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 PIC12CE5XX 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.
PIC12CE5XX
1.1 Applications
The PIC12CE5XX series fits perfectly in applications
ranging from sensory systems, gas detectors and
security systems to low-power remote transmitters/
receivers. The EPROM programming technology
makes customizing application programs (transmitter
codes, appliance settings, receiver frequencies, etc.)
extremely fast and convenient. While the EEPROM
data memory technology allows for the changing of cal-
ibrations factors and security codes, the small footprint
8-pin packages, for through hole or surface mounting,
make this microcontroller series perfect for applications
with space limitations. Low-cost, low-power, high per-
formance, ease of use and I/O flexibility make the
PIC12CE5XX series very versatile even in areas where
no microcontroller use has been considered before
(e.g., timer functions, replacement of “glue” logic and
PLD’s in larger systems, coprocessor applications).
© 1997 Microchip Technology Inc.
Preliminary
DS40172A-page 3



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PIC12CE5XX
TABLE 1-1: PIC12CXXX FAMILY OF DEVICES
PIC12C508(A) PIC12C509(A) PIC12CE518 PIC12CE519 PIC12C671 PIC12C672
Cwlowcwk .DataShMoefeaOxt4ipmeUura.mctiooFnmre(qMuHezn)cy 4
EPROM Program 512 x 12
Memory
Memory
RAM Data Memory 25
(bytes)
4
1024 x 12
41
4
512 x 12
25
4 10 10
1024 x 12 1024 x 14 2048 x 14
41 128 128
EEPROM Data Mem-
ory (bytes)
16 16
Peripherals Timer Module(s)
TMR0
TMR0
TMR0
TMR0
TMR0
TMR0
A/D Converter (8-bit) —
——4
4
Channels
Wake-up from
Yes
Yes
Yes Yes Yes Yes
SLEEP on
pin change
Interrupt Sources —
44
Features
I/O Pins
5
5
5555
Input Pins
1
1
1111
Internal Pull-ups
Yes
Yes
Yes Yes Yes Yes
In-Circuit Serial Pro- Yes Yes Yes Yes Yes Yes
gramming
Number of Instruc- 33 33 33 33 35 35
tions
Packages
8-pin DIP,
JW, 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, SOIC
All PIC12CE5XX devices have Power-on Reset, selectable Watchdog Timer, selectable code protect and high I/O current capability.
All PIC12CE5XX devices use serial programming with data pin GP0 and clock pin GP1.
DS40172A-page 4
Preliminary
© 1997 Microchip Technology Inc.



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