PIC12CE673 datasheet(3/116 Pages) MICROCHIP

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Preliminary

DS40181B-page 3

PIC12CE67X

1.0

GENERAL DESCRIPTION

The PIC12CE67X devices are low-cost, high-perfor-

mance, CMOS, fully-static, 8-bit microcontroller with

integrated

analog-to-digital

(A/D)

converter

and

EEPROM data memory in the PIC12CEXXX Micro-

controller family.

All PICmicro™ microcontrollers employ an advanced

RISC architecture. The PIC12C67X microcontrollers

have enhanced core features, eight-level deep stack,

and multiple internal and external interrupt sources.

The separate instruction and data buses of the Harvard

architecture allow a 14-bit wide instruction word with

the separate 8-bit wide data. The two stage instruction

pipeline allows all instructions to execute in a single

cycle, except for program branches which require two

cycles. A total of 35 instructions (reduced instruction

set) are available. Additionally, a large register set gives

some of the architectural innovations used to achieve a

very high performance.

PIC12C67X microcontrollers typically achieve a 2:1

code compression and a 4:1 speed improvement over

other 8-bit microcontrollers in their class.

The PIC12CE67X devices have 128 bytes of RAM, 16

bytes of EEPROM data memory, 5 I/O pins and 1 input

pin. In addition a timer/counter is available. Also a 4-

channel high-speed 8-bit A/D is provided. The 8-bit res-

olution is ideally suited for applications requiring low-

cost analog interface, e.g. thermostat control, pressure

sensing, etc.

The PIC12CE67X device has special features to

reduce external components, thus reducing cost,

enhancing system reliability and reducing power con-

sumption. The Power-On Reset (POR), Power-up

Timer (PWRT), and Oscillator Start-up Timer (OST)

eliminate the need for external reset circuitry. There are

five oscillator conﬁgurations to choose from, including

INTRC precision internal oscillator mode and the

power-saving LP (Low Power) oscillator mode. Power

saving SLEEP mode, Watchdog Timer and code

protection features improve system cost, power and

reliability.The SLEEP (power-down) feature provides a

power saving mode. The user can wake up the chip

from SLEEP through several external and internal

interrupts and resets.

A highly reliable Watchdog Timer with its own on-chip

RC oscillator provides protection against software lock-

up.

A UV erasable windowed package version is ideal for

code development while the cost-effective One-Time-

Programmable (OTP) version is 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 PIC12CE67X device ﬁts perfectly in applications

ranging from security and remote sensors to appliance

control and automotive. The EPROM technology

makes customization of application programs (trans-

mitter codes, motor speeds, receiver frequencies, etc.)

extremely fast and convenient. The small footprint

packages make this microcontroller series perfect for

all applications with space limitations. Low cost, low

power, high performance, ease of use and I/O ﬂexibility

make the PIC12CE67X very versatile even in areas

where no microcontroller use has been considered

before (e.g. timer functions, communications and

coprocessor applications).

1.1

Family and Upward Compatibility

The PIC12CE67X products are compatible with other

members of the 14-Bit, PIC12C67X and PIC16CXXX

families.

1.2

Development Support

The PIC12CE67X device is supported by a full-fea-

tured macro assembler, a software simulator, an in-cir-

cuit emulator, a low-cost development programmer and

a full-featured programmer. A “C” compiler and fuzzy

logic support tools are also available.

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