Document en anglais sur La différence fonctionnelle et Les différences de spécification électriques.

ã 1999 Microchip Technology Inc. DS30472A-page 1

DEVICE MIGRATIONS

This document is intended to describe the functional differences and the electrical specification differences that are

present when migrating from one device to the next. Table 1-1 shows functional differences, while Table 1-2 shows electrical

and timing differences.

TABLE 1: PIC16C72 ® PIC16C72A FUNCTIONAL DIFFERENCES

Note: Even though compatible devices are specified to be tested to the same electrical specification, the device

characteristics may be different from each other (due to process differences). For systems that were

designed to the device specifications, these process differences should not cause any issues in the application.

For systems that did not tightly meet the electrical specifications, the process differences may cause

the device to behave differently in the application.

Note: While there are no functional or electrical changes to the device oscillator specifications, the user should

verify that the device oscillator starts and performs as expected. Adjusting the loading capacitor values and/

or the oscillator mode may be required.

No. Module Differences from PIC16C72 H/W S/W Prog.

7 SSP Supports all four SPI modes. (Now uses SSP vs BSSP module.)

See SSP module in the PICmicro® Mid-Range Reference Manual,

(DS33023A).

— Yes —

Legend: H/W - Issues may exist with regard to the application circuits.

S/W - Issues may exist with regard to the user program.

Prog - Issues may exist when writing the program to the controller.

PIC16C72 ® PIC16C72A Migration

DS30472A-Page 2 Ó 1999 Microchip Technology Inc.

TABLE 2: PIC16C72 ® PIC16C72A SPECIFICATION DIFFERENCES

Param

No.

Symbol Characteristic

PIC16C72 PIC16C72A

Unit

Min Typ† Max Min Typ† Max

Core

D005 VBOR Brown-out Reset Voltage 3.7 4.0 4.3 3.65 — 4.35 V

D022 DIWDT Watchdog Module Differential Current — — — — 6.0 20 mA

D023/

D022A

DIBOR Brown-Out Detect Module Differential

Current

—

—

350

—

425

—

—

—

—

TBD

—

200

mA

mA

D150† VOD Open-Drain High Voltage on RA4 — — 14.0 — — 8.5 V

A/D Converter

130 TAD A/D Clock Period

A/D RC clock mode

PIC16LCXX 2.5 6.0 9.0 3.0 6.0 9.0 mS

131 TCNV Conversion time(2)

(not including S/H time)

— 9.5(3) — 11(4) — 11(4) TAD

SSP in SPI mode

71 TscH SCK input high time

(slave mode)

Continuous TCY

+ 20

— — 1.25TCY

+ 30

— — ns

71A Single Byte 40 — — ns

72 TscL SCK input low time

(slave mode)

Continuous TCY

+ 20

— — 1.25TCY

+ 30

— — ns

72A Single Byte 40 — — ns

73 TdiV2scH,

TdiV2scL

Setup time of SDI data input to SCK

edge

50 — — 100 — — ns

73A(5) TB2B Last clock edge of Byte1 to the 1st

clock edge of Byte2

— — — 1.5TCY

+ 40

— — ns

74 TscH2diL,

TscL2diL

Hold time of SDI data input to SCK

edge

50 — — 100 — — ns

75 TdoR SDO data output rise

time

PIC16CXX — 10 25 — 10 25 ns

PIC16LCXX — 20 45 ns

78 TscR SCK output rise time

(master mode)

PIC16CXX — 10 25 — 10 25 ns

PIC16LCXX — 20 45 ns

80 TscH2doV,

TscL2doV

SDO data output

valid after SCK edge

PIC16CXX — — 50 — — 50 ns

PIC16LCXX

...