PIC17C44 datasheet(7/241 Pages) MICROCHIP

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DS30412C-page 7

PIC17C4X

2.0

PIC17C4X DEVICE VARIETIES

A variety of frequency ranges and packaging options

are available. Depending on application and production

requirements, the proper device option can be selected

using the information in the PIC17C4X Product Selec-

tion System section at the end of this data sheet. When

placing orders, please use the “PIC17C4X Product

Identiﬁcation System” at the back of this data sheet to

specify the correct part number.

For the PIC17C4X family of devices, there are four

device “types” as indicated in the device number:

C, as in PIC17C42. These devices have

EPROM type memory and operate over the

standard voltage range.

LC, as in PIC17LC42. These devices have

EPROM

type

memory,

operate

over

extended voltage range, and reduced frequency

range.

CR, as in PIC17CR42. These devices have

ROM type memory and operate over the stan-

dard voltage range.

LCR, as in PIC17LCR42. These devices have

ROM type memory, operate over an extended

voltage range, and reduced frequency range.

2.1

UV Erasable Devices

The UV erasable version, offered in CERDIP package,

is optimal for prototype development and pilot pro-

grams.

The UV erasable version can be erased and repro-

grammed

any

the

conﬁguration

modes.

Microchip's PRO MATE

™ programmer supports pro-

gramming of the PIC17C4X. Third party programmers

also are available; refer to the

Third Party Guide for a

list of sources.

2.2

One-Time-Programmable (OTP)

Devices

The availability of OTP devices is especially useful for

customers expecting frequent code changes and

updates.

The OTP devices, packaged in plastic packages, per-

mit the user to program them once. In addition to the

program memory, the conﬁguration bits must also be

programmed.

2.3

Quick-Turnaround-Production (QTP)

Devices

Microchip offers a QTP Programming Service for fac-

tory production orders. This service is made available

for users who choose not to program a medium to high

quantity of units and whose code patterns have stabi-

lized. The devices are identical to the OTP devices but

with all EPROM locations and conﬁguration options

already programmed by the factory. Certain code and

prototype veriﬁcation procedures apply before produc-

tion shipments are available. Please contact your local

Microchip Technology sales ofﬁce for more details.

2.4

Serialized Quick-Turnaround

Production (SQTP

SM) Devices

Microchip offers a unique programming service where

a few user-deﬁned locations in each device are pro-

grammed with different serial numbers. The serial num-

bers may be random, pseudo-random or sequential.

Serial programming allows each device to have a

unique number which can serve as an entry-code,

password or ID number.

ROM devices do not allow serialization information in

the program memory space.

For information on submitting ROM code, please con-

tact your regional sales ofﬁce.

2.5

Read Only Memory (ROM) Devices

Microchip offers masked ROM versions of several of

the highest volume parts, thus giving customers a low

cost option for high volume, mature products.

For information on submitting ROM code, please con-

tact your regional sales ofﬁce.

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