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PIC16F87XA

The PIC16F87XA Rev. B7 parts you have received

conform functionally to the Device Data Sheet

(DS39582B), except for the anomalies described

below.

All the issues listed here will be addressed in future

revisions of the PIC16F87XA silicon.

The following silicon errata apply only to

PIC16F87XA devices with these Device/Revision

IDs:

1. Module: A/D (Operation)

The ADC is disabled when ADCON1<3:0> = 011x

(all inputs digital) and CMCON<2:0> = 111

(comparators are off). This is a special case that

conflicts with the second sentence of Note 1 on

page 131 of the device data sheet: “Pins

configured as digital inputs will convert an analog

input.”

Work around

For the ADC module to be enabled, it is necessary

to either:

1. Enable the comparators (CMCON<2:0> ≠ 111);

2. Configure at least one ADC channel as an

analog input (ADCON1<3:0> ≠ 011x).

Clarifications/Corrections to the Data

Sheet:

In the Device Data Sheet (DS39582B), the following

clarifications and corrections should be noted.

1. Document Cover

In the printed version of the device data sheet, the

cover lists the following as included devices:

•PIC16F873A

•PIC16F874A

•PIC18F876A

•PIC18F877A

In fact, this data sheet only describes PIC16F mid-

range devices. The list should read (corrections in

bold):

•PIC16F873A

•PIC16F874A

•PIC16F876A

•PIC16F877A

2. Module: Instruction Set

In compositing the data sheet for publication, one

page of Section 15.2 “Instruction Descriptions”

was omitted. The content of this page is identical to

that of page 162 of the original version of the data

sheet (DS39582A). The syntax of the 6 instructions

on this page is included and correctly summarized

in Table 15-2 (PIC16F87XA Instruction Set).

The content of the omitted page (without the

header and footer of the original document) is

reproduced on the following page. This should be

regarded as an insert between the existing pages

163 and 164 of DS39582B.

Part Number Device ID Revision ID

PIC16F873A 00 1110 010 01000

PIC16F874A 00 1110 011 01000

PIC16F876A 00 1110 000 01000

PIC16F877A 00 1110 001 01000

PIC16F87XA Rev. B7 Silicon/Data Sheet Errata

Summary of content (6 pages)

PAGE 1
PIC16F87XA PIC16F87XA Rev. B7 Silicon/Data Sheet Errata The PIC16F87XA Rev. B7 parts you have received conform functionally to the Device Data Sheet (DS39582B), except for the anomalies described below. All the issues listed here will be addressed in future revisions of the PIC16F87XA silicon.
PAGE 2
PIC16F87XA MOVF Move f Syntax: [ label ] Operands: 0 ≤ f ≤ 127 d ∈ [0,1] Operation: No operation Operation: (f) → (destination) Status Affected: None Status Affected: Z Description: No operation. Description: The contents of register ‘f’ are moved to a destination dependant upon the status of ‘d’. If d = 0, destination is W register. If d = 1, the destination is file register ‘f’ itself. d = 1 is useful to test a file register, since status flag Z is affected.
PAGE 3
PIC16F87XA 3. Module: Product Identification System In Example C of the Product Identification System, 10 MHz should read 20 MHz as shown in bold. c) PIC16F877A-I/P = Industrial temp., PDIP package, 20 MHz, normal VDD limits. © 2006 Microchip Technology Inc. REVISION HISTORY Rev A Document (5/2006) Original version of this document. Includes silicon issue 1 (A/D, Operation) and data sheet clarifications 1, 2 and 3 (Document Cover, Instruction Set and Product ID System).
PAGE 5
Note the following details of the code protection feature on Microchip devices: • Microchip products meet the specification contained in their particular Microchip Data Sheet. • Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the intended manner and under normal conditions. • There are dishonest and possibly illegal methods used to breach the code protection feature.
PAGE 6
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