PIC16LC63A-04 Datasheet, PDF(166/184 Page) Microchip Technology – 8-Bit CMOS Microcontrollers with A/D Converter

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PIC16LC63A-04 Datasheet, PDF (166/184 Pages) Microchip Technology – 8-Bit CMOS Microcontrollers with A/D Converter

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PIC16C63A/65B/73B/74B

APPENDIX C: DEVICE MIGRATIONS -

PIC16C63/65A/73A/74A â PIC16C63A/65B/73B/74B

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 C-1 shows functional differences, while Table C-2 shows

electrical and timing 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 appli-

cation. 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.

TABLE C-1: FUNCTIONAL DIFFERENCES

No. Module

Differences from PIC16C63/65A/73A/74A

1 CCP CCP Special Event Trigger clears Timer1.

Compare mode drives pin correctly.

3 Timers Writing to TMR1L does not affect TMR1H.

WDT/TMR0 prescaler assignment changes do not affect TMR0 count.

5 SSP TMR2 SPI clock synchronized to start of SPI Transmission.

Can now transmit multiple words in SPI mode.

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

See SSP module in the PICmicroâ¢ Mid-Range MCU Family Reference Man-

ual (DS33023).

I2C no longer generates ACK pulses when module is enabled.

9 USART Async receive errors due to BRGH setting corrected.

10 A/D VREF = VDD when all inputs are configured as digital.

This allows conversion of digital inputs. (A/D on PIC16C73X/74X only.)

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.

H/W S/W Prog.

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DS30605C-page 166

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