PIC16LC620-04SLASHSS datasheet(5/108 Pages) MICROCHIP

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Preliminary

DS30235G-page 5

PIC16C62X

1.0

GENERAL DESCRIPTION

The

PIC16C62X

are

and

ROM/EPROM-based members of the versatile PICmi-

cro™ family of low-cost, high-performance, CMOS,

fully-static, 8-bit microcontrollers.

All PICmicro™ microcontrollers employ an advanced

RISC architecture. The PIC16C62X 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.

PIC16C62X microcontrollers typically achieve a 2:1

code compression and a 4:1 speed improvement over

other 8-bit microcontrollers in their class.

The PIC16C620A, PIC16C621A and PIC16CR620A

have 96 bytes of RAM. The PIC16C622(A) has 128

bytes of RAM. Each device has 13 I/O pins and an 8-bit

timer/counter with an 8-bit programmable prescaler. In

addition, the PIC16C62X adds two analog comparators

with a programmable on-chip voltage reference mod-

ule. The comparator module is ideally suited for appli-

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

battery chargers, threshold detectors, white goods

controllers, etc).

PIC16C62X 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 PIC16C62X

mid-range microcontroller families.

A simpliﬁed block diagram of the PIC16C62X is shown

in Figure 3-1.

The PIC16C62X series ﬁt perfectly in applications

ranging from battery chargers to low-power remote

sensors. The EPROM technology makes customization

of application programs (detection levels, pulse gener-

ation, timers, 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 PIC16C62X very versatile.

1.1

Family and Upward Compatibility

Those users familiar with the PIC16C5X family of

microcontrollers will realize that this is an enhanced

version of the PIC16C5X architecture. Please refer to

Appendix A for a detailed list of enhancements. Code

written for the PIC16C5X can be easily ported to

PIC16C62X family of devices (Appendix B).

The

PIC16C62X family ﬁlls the niche for users wanting to

migrate up from the PIC16C5X family and not needing

various peripheral features of other members of the

PIC16XX mid-range microcontroller family.

1.2

Development Support

The PIC16C62X 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.

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