PIC16LF873A-I/SO - Microchip Technology

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 P IC16F 87XA silicon.

The following silicon errata apply only to

PIC16F87XA devices with these Device/Revision

IDs:

1. Module: A/D (Operation)

The A DC is disa bled wh en 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 m odule to be en abled, it is nec essary

to either:

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

2. Configure at least one ADC channel as an

analog inp ut (ADCO N1< 3:0> ≠ 011x).

Clarifications/Correc ti ons to the Data

Sheet:

In the Device Data Sheet (DS39582B), the following

clarifications and corrections should be noted.

1. Document Cover

In the p r inte d vers io n o f th e d ev ic e d at a sheet, th e

cover lists the following as included devices:

•PIC16F873A

•PIC16F874A

•PIC18F876A

•PIC18F877A

In fact, th is data sheet only desc ribes 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 p age is identical to

that of page 162 of the original version of the data

sheet (DS39582A). The synt ax 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

PIC16F 874 A 00 1110 011 01000

PIC16F876A 00 1110 000 01000

PIC16F877A 00 1110 001 01000

PIC16F87XA Rev. B7 Silicon/Data Sheet Errata

PIC16F87XA

MOVF Move f

Syntax: [ label ] MOVF f,d

Operands: 0 ≤ f ≤ 127

d ∈ [0,1]

Operation: (f) → (destination )

Status Affected: Z

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

affected.

MOVLW Move Literal to W

Syntax: [ label ] MOVLW k

Operands: 0 ≤ k ≤ 255

Operation: k → (W)

Status Affected: None

Description: The eight bit literal ‘k’ is loaded

into W register. The don’t cares

will ass em bl e as 0’s.

MOVWF Move W to f

Syntax: [ label ] MOVWF f

Operands: 0 ≤ f ≤ 127

Operation: (W) → (f)

Status Affected: None

Description: Move data from W register to

NOP No Operation

Syntax: [ label ] NOP

Operands: None

Operation: No operation

Status Affe cte d: None

Description: No operation.

RETFIE Return from Interrupt

Syntax: [ label ] RETFIE

Operands: None

Operation: TOS → PC,

1 → GIE

Status Affe cte d: None

RETLW Return with Literal in W

Syntax: [ label ] RETLW k

Operands: 0 ≤ k ≤ 255

Operation: k → (W);

TOS → PC

Status Affe cte d: None

Description: The W register is loaded with the

eight bit literal ‘k’. The program

counter is loaded from the top of

the stack (the return address).

This is a two-cycle instruction.

PIC16F87XA

3. Module: Product Identification System

In Examp le C of the Pr oduct Ident ification System,

10 MHz should read 20 MHz as shown in bold.

c) PIC16F877A-I/P = Industrial temp., PDIP

package, 20 MHz, normal VDD limits.

REVISION HISTORY

Rev A Document (5/2006)

Origina l version of th is document. Includes silicon issue

1 (A/D, Operation) and data sheet clarifications 1, 2

and 3 (D ocument Cov er , Instructio n Set and Produc t ID

System).

PIC16F87XA

NOTES:

Information contained in this publication regarding device

applications and the like is provided only for your con ve nience

and may be superseded by u pdates. It is y our respo ns i bil it y to

ensure that your application meets with your specifications.

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Printed on recycled paper.

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 it s family of products is one of the most secure families of its kind on the market t oday, when used in t he

intended manner and under normal conditions.

• There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

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