PIC16C71-20/P - Microchip Technology

 2003 Microchip Technology Inc. DS80072D-page 1

PIC16C712/716

The PIC16C712/716 parts you have received conform

functionally to the Device Data Sheet (DS41106A),

except for the anomalies described below.

The problem here will be addressed in future revisions

of the PIC16C712/716 silicon.

1. Module: CCP

When using the PIC16C712/716 in the Compare

or PWM mode, the TCCP bit of the TRISCCP

described in Figure 7-2 of the Device Data Sheet.

The TCCP bit of the TRISCCP register has no

effect on the output of pin RB3.

Work around

There is no way to tristate the output on pin RB3 in

the Compare or PWM mode. However, there are

steps you can do in firmware to stop the RB3 pin

from changing and leave it in a known state.

Examples are shown below.

EXAMPLE 1:

(Assumes that the T2CON and CCP1CON values are determined at assembly time and remain fixed.)

Code Example 1A:

;***********************************************************************

; Call these routines to turn the PWM off or on and ensure a Zero output on RB3

; when PWM is off.

;

; PWMreset - Clear T2CON Disabling Timer2 and Clearing Timer 2 Prescaler,

; then fill the TMR2 register with the CCPR1H value. This will cause

; a Reset or Zero value on RB3.

;

; PWMrestart - Restore the T2CON register with the appropriate value for your

; system needs. IT IS THE RESPONSIBILITY OF THE USER TO DETERMINE

; THE CORRECT VALUE FOR T2CON.

Assembly Code To Stop PWM Once Started:

PWMreset

bcf STATUS,RP0 ; Select Bank 0

clrf T2CON ; Clear T2CON, Timer2-Disable & Pre/Post Scalers = 1

movf CCPR1H,W ; Load CCPR1H value in Write register

movwf TMR2 ; Move CCPR1H value into TMR2 to cause Reset of RB3 pin

return

Note: The TCCP bit of the TRISCCP register

functions as described in Figure 7-2 of the

Device Data Sheet, when using the

MPLAB® ICE 2000 in-circuit emulator

Software License Agreement

The software supplied herewith by Microchip Technology Incorporated (the “Company”) is intended and supplied to you, the Com-

pany’s customer, for use solely and exclusively with products manufactured by the Company.

The software is owned by the Company and/or its supplier, and is protected under applicable copyright laws. All rights are reserved.

Any use in violation of the foregoing restrictions may subject the user to criminal sanctions under applicable laws, as well as to civil

liability for the breach of the terms and conditions of this license.

THIS SOFTWARE IS PROVIDED IN AN “AS IS” CONDITION. NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATU-

TORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICU-

LAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR

SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.

PIC16C712/716 Rev. A Silicon/Data Sheet Errata

PIC16C712/716

DS80072D-page 2  2003 Microchip Technology Inc.

Assembly Code To Start PWM Once Stopped:

PWMrestart

bcf STATUS,RP0 ; Select Bank 0

movlw T2CONVAL ; Load T2CON value in ‘w’ register - USER RESPONSIBLE FOR

; SUPPLYING THE CORRECT T2CON VALUE.

movwf T2CON ; Initialize T2CON enabling scalers and Timer2

return

Code Example 1B:

;***********************************************************************

; Call these routines to turn the CCP Mode off or on and ensure RB3 is a known

; Input or Output value when CCP Mode is off.

;

; CCPstop - First sets RB3 to an Input or an Output. If RB3 is an Output then it’s state is made

; either High or Low. The CCP is then Disabled.

;

; CCPstart - Enable CCP Mode. IT IS THE RESPONSIBILITY OF THE USER TO DETERMINE THE CORRECT

; VALUE FOR CCP1CON.

Assembly Code To Stop CCP Mode Once Started:

CCPstop

bsf STATUS,RP0 ; Select Bank 1

bcf TRISB,3 ; RB3 as an Output - set bit TRISB, 3 when RB3

; as an Input is desired.

bcf STATUS,RP0 ; Select Bank 0

bcf PORTB,3 ; RB3 as a Low Level Output - Set bit TRISB,3 for

; RB3 to be a High Level

; Output.

movlw 0x30 ; Load CCP1CON value in Working register

movwf CCP1CON ; Turn Off CCP1CON all Modes

return

Assembly Code To Start CCP Mode Once Stopped:

CCPstart

bcf STATUS,RP0 ; Select Bank 0

movlw CCP1CONVAL ; Load CCP1CON value in Working register.

; THE USER IS RESPONSIBLE FOR SUPPLYING THE CORRECT CCP1CON VALUE.

movwf CCP1CON ; Initialize CCP1CON for desired Mode of operation.

return

 2003 Microchip Technology Inc. DS80072D-page 3

PIC16C712/716

EXAMPLE 2:

(Assumes that the T2CON and CCP1CON values may change during program execution. One SRAM location is used

for temporary storage of T2CON or CCP2CON.)

Code Example 2A:

;***********************************************************************

;Call these routines to turn the PWM off or on and ensure a Zero output on RB3

; when PWM is off.

;

; PWMreset - Saves T2CON value in RAM location. IT IS THE RESPONSIBILITY OF THE USER TO SUPPLY

; RAM MEMORY SPACE TO SAVE THE T2CON VALUE.

; Clears T2CON register Disabling Timer2 and clearing Timer2 Prescaler.

; The TMR2 register is then filled with the CCPR1H value. This causes a Reset

; or Zero value on RB3.

;

; PWMrestart - Enable Timer2

Assembly Code To Stop PWM Once Started:

T2CONSAV equ 0x?? ; USER RESPONSIBLE FOR SUPPLYING RAM MEMORY SPACE

; TO SAVE T2CON VALUE.

PWMreset

bcf STATUS,RP0 ; Select Bank 0

movf T2CON,W ; Move T2CON Value to ‘w’ register

movwf T2CONSAV ; Save T2CON register value

clrf T2CON ; Clear T2CON, Timer2-Disable & Pre/Post Scalers=1

movf CCPR1H,W ; Load CCPR1H value in Write register

movwf TMR2 ; Move CCPR1H value into TMR2 to cause Reset of RB3 pin

return

Assembly Code To Start PWM Once Stopped:

PWMrestart

bcf STATUS,RP0 ; Select Bank 0

movf T2CONSAV,W ; Move T2CONSAV Value to ‘w’ register

movwf T2CON ; Restore T2CON register value

return

PIC16C712/716

DS80072D-page 4  2003 Microchip Technology Inc.

Code Example 2B:

;***********************************************************************

; Call these routines to turn the CCP Mode off or on and ensure RB3 is a known

; Input or Output value when CCP Mode is off.

;

; CCPstop - First sets RB3 to an Input or an Output. If RB3 is an Output then it’s state

; is made either High or Low. The CCP is then Disabled.

;

; CCPstart - Enable CCP Mode. IT IS THE RESPONSIBILITY OF THE USER TO DETERMINE THE CORRECT

; VALUE FOR CCP1CON.

Assembly Code To Stop CCP Mode Once Started:

CCP1CONSAV equ 0X?? ; USER IS RESPONSIBLE FOR SUPPLYING RAM MEMORY SPACE

; TO SAVE CCP2CON VALUE.

CCPstop

bsf STATUS,RP0 ; Select Bank 1

bcf TRISB,3 ; RB3 as an Output - set bit TRISB, 3 when RB3

; as an Input is desired.

bcf STATUS,RP0 ; Select Bank 0

bcf PORTB,3 ; RB3 as a Low Level Output - set bit PORTB,3

; for RB3 to be a High Level

; Output.

movf CCP1CON,W ; Move CCP1CON to ‘W’ register

movwf CCP1CONSAV ; Save CCP1CON register value

movlw 0x30 ; Load CCP1CON value in Working register

movwf CCP1CON ; Turn Off CCP1CON all Modes

return

Assembly Code To Start CCP Mode Once Stopped:

CCPstart

bcf STATUS,RP0 ; Select Bank 0

movf CCP1CONSAV,W ; Move CCP1CONSAV value to ‘W’ register

movwf CCP1CON ; Restore CCP1CON to desired Mode of operation.

return

 2003 Microchip Technology Inc. DS80072D-page 5

PIC16C712/716

2. Module: Timer1

When Timer1 is configured to operate as an

asynchronous counter, care must be taken that

there is no incoming pulse while the module is

being turned off. If an incoming pulse arrives while

Timer1 is being turned off (i.e., TMR1ON transi-

tions from 1 to 0), the value of registers TMR1L

and TMR1H will be unpredictable.

Work around

This solution involves changing Timer1 from

Asynchronous to Synchronous mode before turn-

ing off Timer1. No additional resources are

required for this solution.

Timer1 synchronization will start, effectively stop-

ping Timer1, one Q period after the Synchronous

mode is enabled, or one Q period later than would

have been realized by simply clearing the

TMR1ON bit. One additional count, in excess of

the counts accrued during this extra Q period, may

be accumulated before the TMR1ON bit is eventu-

ally cleared in the next instruction. The occurrence

of this additional count is dependent on the phase

relationship between OSC1, or the internal system

clock, and T1CKI.

Code Example:

**************************************************************************************

;Call this routine to stop Timer1 asynchronous counting

;

;Timer1 is stopped after the timer is changed to synchronous mode

; The captured timer value resides in TMR1H and TMR1L at the completion of this

; routine.

TMR1Capture ; entry point

bcf T1CON,NOT_T1SYNC ; set for synchronous mode

bcf T1CON,TMR1ON ; stop timer

bsf T1CON,NOT_T1SYNC ; restore asynchronous mode

return ; return to calling routine

PIC16C712/716

DS80072D-page 6  2003 Microchip Technology Inc.

Clarifications/Corrections to the Data

Sheet:

In the Device Data Sheet (DS41106A), the following

clarifications and corrections should be noted.

1. The following register and bit names need the

following corrections:

2. Figure 3-4, page 24, of the Device Data Sheet

should show the following block diagram for

RB1/T1OSO/T1CK1:

FIGURE 3-4: BLOCK DIAGRAM OF RB1/T1OSO/T1CKI PIN

Page Where Occurrence Data Sheet Name Correct Name

10 Figure 2-3, Address 0Fh 1 TRM1H TMR1H

10 Figure 2-3, Address 11h 1 TRM2 TMR2

41 Table 7-2, Address 07h, bit 0 1 TT1CK DT1CK

44 Table 7-5, Control Bits column 4 TR1SCCP TRISCCP

TTL Buffer

TRISB<1>

PORTB<1>

TRISCCP<0>

DATACCP<0>

RB1/T1OSO/T1CKI

Data Bus

WR TRISB

T1OSCEN

RD PORTB

TMR1CS

DATACCP

TRISCCP

PORTB

T1CLKIN

Buffer

VDD

Weak

Pull-up

RBPU(1)

T1OSCEN

T1CS

VSS

VDD

Note 1: To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (OPTION_REG<7>).

TMR1CS

 2003 Microchip Technology Inc. DS80072D-page 7

PIC16C712/716

3. Figure 12-1, page 76, of the Device Data Sheet

should show the following valid region of

operation:

FIGURE 12-5: PIC16C712/716 VOLTAGE-FREQUENCY GRAPH, -40°C ≤ TA ≤ +125°C

4. Parameter No. D001, page 77, of the Device

Data Sheet should show the following values:

12.1 DC Characteristics: PIC16C712/716-04 (Commercial, Industrial, Extended)

PIC16C712/716-20 (Commercial, Industrial, Extended)

6.0

2.5

4.0

3.0

3.5

4.5

5.0

5.5

410

Frequency (MHz)

VDD

(Volts)

2.0

Note 1: The shaded region indicates the permissible combinations of voltage and frequency.

DC CHARACTERISTICS

Standard Operating Conditions (unless otherwise stated)

Operating temperature 0°C ≤ TA ≤ +70°C for commercial

-40°C ≤ TA ≤ +85°C for industrial

-40°C ≤ TA ≤ +125°C for extended

Param

No. Sym Characteristic Min Typ† Max Unit

sConditions

D001

D001A

VDD Supply Voltage 4.0

4.5

VBOR*

—

5.5

XT, RC and LP osc mode

HS osc mode

BOR enabled(7)

PIC16C712/716

DS80072D-page 8  2003 Microchip Technology Inc.

5. Module: Packaging

The package information contained in the data

sheet is incorrect. Please refer to the following

tables for correct package data.

18-Lead Plastic Dual In-line (P) – 300 mil (PDIP)

1510515105

Mold Draft Angle Bottom

1510515105

Mold Draft Angle Top

10.929.407.87.430.370.310

Overall Row Spacing §

0.560.460.36.022.018.014BLower Lead Width

1.781.461.14.070.058.045B1Upper Lead Width

0.380.290.20.015.012.008

Lead Thickness

3.433.303.18.135.130.125LTip to Seating Plane

22.9922.8022.61.905.898.890DOverall Length

6.606.356.10.260.250.240E1Molded Package Width

8.267.947.62.325.313.300EShoulder to Shoulder Width

0.38.015A1Base to Seating Plane

3.683.302.92.145.130.115A2Molded Package Thickness

4.323.943.56.170.155.140ATop to Seating Plane

2.54.100

Pitch

1818

Number of Pins

MAXNOMMINMAXNOMMINDimension Limits

MILLIMETERSINCHES*Units

* Controlling Parameter

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed

.010” (0.254mm) per side.

JEDEC Equivalent: MS-001

Drawing No. C04-007

§ Significant Characteristic

 2003 Microchip Technology Inc. DS80072D-page 9

PIC16C712/716

18-Lead Plastic Small Outline (SO) – Wide, 300 mil (SOIC)

Foot Angle φ048048

1512015120

Mold Draft Angle Bottom

1512015120

Mold Draft Angle Top

0.510.420.36.020.017.014BLead Width

0.300.270.23.012.011.009

Lead Thickness

1.270.840.41.050.033.016LFoot Length

0.740.500.25.029.020.010hChamfer Distance

11.7311.5311.33.462.454.446DOverall Length

7.597.497.39.299.295.291E1Molded Package Width

10.6710.3410.01.420.407.394EOverall Width

0.300.200.10.012.008.004A1Standoff §

2.392.312.24.094.091.088

Molded Package Thickness

2.642.502.36.104.099.093AOverall Height

1.27.050

Pitch

1818

Number of Pins

MAXNOMMINMAXNOMMINDimension Limits

MILLIMETERSINCHES*Units

45°

* Controlling Parameter

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed

.010” (0.254mm) per side.

JEDEC Equivalent: MS-013

Drawing No. C04-051

§ Significant Characteristic

PIC16C712/716

DS80072D-page 10  2003 Microchip Technology Inc.

18-Lead Ceramic Dual In-line with Window (JW) – 300 mil (CERDIP)

3.30 3.56 3.81

5.335.084.83.210.200.190

Window Length

.150.140.130W1Window Width

10.809.788.76.425.385.345

Overall Row Spacing §

0.530.470.41.021.019.016BLower Lead Width

1.521.401.27.060.055.050B1Upper Lead Width

0.300.250.20.012.010.008

Lead Thickness

3.813.493.18.150.138.125LTip to Seating Plane

23.3722.8622.35.920.900.880DOverall Length

7.497.377.24.295.290.285E1Ceramic Pkg. Width

8.267.947.62.325.313.300EShoulder to Shoulder Width

0.760.570.38.030.023.015A1Standoff

4.194.063.94.165.160.155

Ceramic Package Height

4.954.644.32.195.183.170ATop to Seating Plane

2.54.100

Pitch

1818

Number of Pins

MAXNOMMINMAXNOMMINDimension Limits

MILLIMETERSINCHES*Units

* Controlling Parameter

§ Significant Characteristic

JEDEC Equivalent: MO-036

Drawing No. C04-010

 2003 Microchip Technology Inc. DS80072D-page 11

PIC16C712/716

20-Lead Plastic Shrink Small Outline (SS) – 209 mil, 5.30 mm (SSOP)

10501050

Mold Draft Angle Bottom

10501050

Mold Draft Angle Top

0.380.320.25.015.013.010BLead Width

203.20101.600.00840

Foot Angle

0.250.180.10.010.007.004

Lead Thickness

0.940.750.56.037.030.022LFoot Length

7.347.207.06.289.284.278DOverall Length

5.385.255.11.212.207.201

Molded Package Width

8.187.857.59.322.309.299EOverall Width

0.250.150.05.010.006.002

Standoff §

1.831.731.63.072.068.064A2Molded Package Thickness

1.981.851.73.078.073.068AOverall Height

0.65.026

Pitch

2020

Number of Pins

MAXNOMMINMAXNOMMINDimension Limits

MILLIMETERSINCHES*Units

* Controlling Parameter

Notes:

Dimensions D and E1 do not include mold flash or protrusions. Mold flash or protrusions shall not exceed

.010” (0.254mm) per side.

JEDEC Equivalent: MO-150

Drawing No. C04-072

§ Significant Characteristic

PIC16C712/716

DS80072D-page 12  2003 Microchip Technology Inc.

APPENDIX A: REVISION HISTORY

Rev. A Document (6/2000)

First revision of this document.

Rev. B Document (4/2001)

Added issue 1 (CCP), page 1, and issue 2 (Timer1),

page 5.

Rev. C Document (1/2002)

Under Clarifications/Corrections to the Data Sheet,

Item 5 (SSOP), on page 8 was added.

Rev. D Document (3/2003)

Under Clarifications/Corrections to the Data Sheet,

Item 5, Packaging: correct package data was added.

 2003 Microchip Technology Inc. DS80072D - page 13

Information contained in this publication regarding device

applications and the like is intended through suggestion only

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications. No

representation or warranty is given and no liability is assumed by

Microchip Technology Incorporated with respect to the accuracy

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and The Embedded Control Solutions Company are registered

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Printed on recycled paper.

Microchip received QS-9000 quality system

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The Company’s quality system processes and

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non-volatile memory and analog products. In

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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. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip's Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

• Microchip is willing to work with the customer who is concerned about the integrity of their code.

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Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

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DS80072D-page 14  2003 Microchip Technology Inc.

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Batiment A - ler Etage

91300 Massy, France

Tel: 33-1-69-53-63-20 Fax: 33-1-69-30-90-79

Germany

Microchip Technology GmbH

Steinheilstrasse 10

D-85737 Ismaning, Germany

Tel: 49-89-627-144-0

Fax: 49-89-627-144-44

Italy

Microchip Technology SRL

Via Quasimodo, 12

20025 Legnano (MI)

Milan, Italy

Tel: 39-0331-742611 Fax: 39-0331-466781

United Kingdom

Microchip Ltd.

505 Eskdale Road

Winnersh Triangle

Wokingham

Berkshire, England RG41 5TU

Tel: 44 118 921 5869 Fax: 44-118 921-5820

03/25/03

WORLDWIDE SALES AND SERVICE