PIC16CE62X datasheet(3/108 Pages) MICROCHIP

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Preliminary

DS40182A-page 3

PIC16CE62X

1.0

GENERAL DESCRIPTION

The PIC16CE62X are 18 and 20 Pin EPROM-based

members of the versatile PICmicro™ family of low-cost,

high-performance,

CMOS,

fully-static,

8-bit

microcontrollers with EEPROM data memory.

All PICmicro™ microcontrollers employ an advanced

RISC architecture. The PIC16CE62X have enhanced

core features, eight-level deep stack, and multiple inter-

nal 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.

PIC16CE62X microcontrollers typically achieve a 2:1

code compression and a 4:1 speed improvement over

other 8-bit microcontrollers in their class.

The PIC16CE623 and PIC16CE624 have 96 bytes of

RAM. The PIC16CE625 has 128 bytes of RAM. Each

microcontroller contains a 128x8 EEPROM memory

array for storing non-volatile information such as cali-

bration data or security codes. This memory has an

endurance of 1,000,000 erase/write cycles and a reten-

tion of 40 plus years.

Each device has 13 I/O pins and an 8-bit timer/counter

with an 8-bit programmable prescaler. In addition, the

PIC16CE62X adds two analog comparators with a

programmable on-chip voltage reference module. The

comparator module is ideally suited for applications

requiring a low-cost analog interface (e.g., battery

chargers,

threshold

detectors,

white

goods

controllers, etc).

PIC16CE62X devices have special features to reduce

external components, thus reducing system cost,

enhancing system reliability and reducing power con-

sumption. There are four oscillator options, of which the

single pin RC oscillator provides a low-cost solution,

the LP oscillator minimizes power consumption, XT is a

standard crystal, and the HS is for High Speed crystals.

The SLEEP (power-down) mode offers power savings.

The user can wake up the chip from SLEEP through

several external and internal interrupts and reset.

A highly reliable Watchdog Timer with its own on-chip

RC oscillator provides protection against software

lock- up.

A UV-erasable CERDIP-packaged version is ideal for

code development while the cost-effective One-Time

Programmable (OTP) version is suitable for production

in any volume.

Table 1-1 shows the features of the PIC16CE62X

mid-range microcontroller families.

A simpliﬁed block diagram of the PIC16CE62X is

shown in Figure 3-1.

The PIC16CE62X series ﬁt perfectly in applications

ranging

from

multi-pocket

battery

chargers

low-power remote sensors. The EPROM technology

makes customization of application programs (detec-

tion levels, pulse generation, timers, etc.) extremely

fast and convenient. The small footprint packages

make this microcontroller series perfect for all applica-

tions with space limitations. Low-cost, low-power,

high-performance, ease of use and I/O ﬂexibility make

the PIC16CE62X very versatile.

1.1

Development Support

The PIC16CE62X family is supported by a full-featured

macro assembler, a software simulator, an in-circuit

emulator, a low-cost development programmer and a

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

logic support tools are also available.

62X.bk Page 3 Tuesday, March 10, 1998 3:40 PM

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