PIC16C71 → PIC16C710/711 Migration 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. Note: This device has been designed to perform to the parameters of its data sheet. It has been tested to an electrical specification designed to determine its conformance with these parameters. Due to process differences in the manufacture of this device, this device may have different performance characteristics than its earlier version. These differences may cause this device to perform differently in your application than the earlier version of this device. Table 1 shows the considerations that must be taken into account when migrating from the PIC16C71 to the PIC16C710/711. TABLE 1: PIC16C71 → PIC16C710/711 DIFFERENCES Functional Differences No. Difference H/W S/W Prog. 1 Programming algorithm change — — ✔ 2 PIC16C710/711 has BOR circuit ✔ — ✔ Note: TABLE 2: 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. PROGRAM AND DATA MEMORY DIFFERENCES PIC16C71 PIC16C710 PIC16C711 Program Memory 1024 512 1024 Data Memory 36 36 68 2001 Microchip Technology Inc. DS40032B-page 1 TABLE 3: ELECTRICAL SPECIFICATION DIFFERENCES PIC16C71 Data Sheet Parm. No. Sym. VDD IDD IPD PIC16C710/711 Data Sheet Characteristic Supply Voltage XT, RC, LP Options XT, RC Opt. Extended Min Typ Max Min Typ Max 3.0 — — — 6.0 — 2.5 3.0 — — 6.0 6.0 Units Conditions V V LC versions LC version Supply Current XT and RC options HS option — — 1.8 4.8 3.3 10 — — 1.8 4.5 2.4 16 mA mA XT and RC options LP option — — 1.4 15 2.5 32 — — 2.0 22.5 3.8 48 mA µΑ Power Down Current PIC16C71/710/ 711 Note 1 Note 2 PIC16LC71/ 710/711 Note 3 Note 4 PIC16C71/710/ 711 VDD = 4.0 WDT Disabled WDT enabled WDT disabled WDT disabled PIC16LC71/ 710/711 VDD = 3.0 WDT disabled WDT enabled WDT disabled WDT disabled — — — — 1.0 7 1.0 — 14 28.0 16 — — — — — 1.5 10.5 1.5 1.5 21 41 24 30 µΑ µΑ µΑ µΑ — — — — 0.6 5 0.6 — 9.0 20 12 — — — — — 0.9 7.5 0.9 0.9 5 30 5.0 10 µΑ Input High Voltage I/O Ports with Schmitt Trigger buffer 0.85VDD — VDD 0.8VDD — VDD V MCLR, RB0/INT 0.85VDD — VDD 0.8VDD — VDD V 1 1 DC — — — 4 20 200 4 — 5 — — — 20 — 200 MHz MHz kHz HS osc mode HS osc mode LP osc mode MCLR Pulse Width (low) 0.2 — — 2 — — µs Note 5 TIOZ I/O HIgh Impedance from MCLR Low — — 0.1 — — 1.1 µs EABS Absolute Error (AD converter) — — < ±2 — — < ±1 LSb LC versions EIL Integral linearity error (AD converter) — — < ±2 — — < ±1 LSb LC versions EDL Differential linearity error (AD converter) — — < ±2 — — < ±1 LSb LC versions EFS Full Scale Error (AD converter) — — < ±2 — — < ±1 LSb LC versions EOFF Offset Error (AD converter) — — < ±2 — — < ±1 LSb LC versions Commercial Industrial Extended Commercial Industrial Extended VIH FOSC TmLC Oscillator Frequency Note 1: FOSC = 4.0MHz, VDD = 5.5V. 2: FOSC = 20MHz, V DD = 5.5V. 3: FOSC = 4MHz, VDD = 3.0V. 4: FOSC = 32kHz, V DD = 3.0V, WDT disabled. 5: For PIC16C71: VDD = 5.0V, -40°C to +85°C; For PIC16C710/711: VDD = 5.0V, -40°C to +125°C. DS40032B-page 2 For all V DD 2001 Microchip Technology Inc. TABLE 4: ABSOLUTE MAXIMUM SPECIFICATION DIFFERENCES Description PIC16C71 Data Sheet PIC16C710/711 Data Sheet Units Total Power Dissipation 0.8 1 W Maximum Current out of V SS Pin 150 300 mA Maximum Current into VDD Pin 100 250 mA Maximum Current Sourced by any I/O Pin 20 25 mA Maximum Current Sunk by PORTA 80 200 mA Maximum Current Sourced by PORTA 50 200 mA Maximum Current Sunk by PORTB 150 200 mA Maximum Current Sourced by PORTB 100 200 mA 2001 Microchip Technology Inc. DS40032B-page 3 FIGURE 1: — CONFIGURATION WORD FOR PIC16C71 — — — — — — — — CP0 PWRTE WDTE FOSC1 FOSC0 bit13 bit0 Register: Address CONFIG 2007h Register: Address CONFIG 2007h bit 13-5: Unimplemented: Read as '1' bit 4: CP0: Code Protection bit 1 = Code protection off 0 = All memory is code protected, but 00h - 3Fh is writable bit 3: PWRTE: Power-up Timer Enable bit 1 = Power-up Timer enabled 0 = Power-up Timer disabled bit 2: WDTE: Watchdog Timer Enable bit 1 = WDT enabled 0 = WDT disabled bit 1-0: FOSC<1:0>: Oscillator Selection bits 11 = RC oscillator 10 = HS oscillator 01 = XT oscillator 00 = LP oscillator FIGURE 2: CP0 CP0 CONFIGURATION WORD FOR PIC16C710/711 CP0 CP0 CP0 CP0 CP0 BODEN CP0 CP0 bit13 bit 13-7 5-4: bit 6: PWRTE WDTE FOSC1 FOSC0 bit0 CP0: Code Protection bits (2) 1 = Code protection off 0 = All memory is code protected, but 00h - 3Fh is writable BODEN: Brown-out Reset Enable bit (1) 1 = BOR enabled 0 = BOR disabled bit 3: PWRTE: Power-up Timer Enable bit (1) 1 = PWRT disabled 0 = PWRT enabled bit 2: WDTE: Watchdog Timer Enable bit 1 = WDT enabled 0 = WDT disabled bit 1-0: FOSC<1:0>: Oscillator Selection bits 11 = RC oscillator 10 = HS oscillator 01 = XT oscillator 00 = LP oscillator Note 1: Enabling Brown-out Reset automatically enables Power-up Timer (PWRT) regardless of the value of bit PWRTE. Ensure the Power-up Timer is enabled any time Brown-out Reset is enabled. 2: All of the CP0 bits have to be given the same value to enable the code protection scheme listed. Note: The Power-up Timer enable bit has a reverse polarity on the PIC16C71 and PIC16C710/711. DS40032B-page 4 2001 Microchip Technology Inc. TABLE 5: TAD vs. DEVICE OPERATING FREQUENCIES, PIC16C71 AD Clock Source (TAD) Operation ADCS<1:0> Device Frequency 20 MHz 16 MHz 2TOSC 00 100 ns 125 ns 8TOSC 01 400 ns(2) 32TOSC 10 µs(2) 500 ns(2) 2.0 µs (2) 1.6 (2) 4 MHz 1 MHz 333.33 kHz 2.0 µs 6 µs 8.0 µs 24 µs(3) 32.0 µs 96 µs(3) (2) 500 ns 2.0 µs 8.0 µs (3) 2 - 6 µs(1,4) 2 - 6 µs(1,4) 2 - 6 µs(1) 2 - 6 µs(1) 2 - 6 µs(1,4) Shaded cells are outside of recommended range. The RC source has a typical TAD time of 4 µs. These values violate the minimum required TAD time. For faster conversion times, the selection of another clock source is recommended. When device frequency is greater than 1 MHz, the RC A/D conversion clock source is recommended for SLEEP operation only. 5: For extended voltage devices (LC), please refer to Electrical Specifications section. RC(5) Legend: Note 1: 2: 3: 4: TABLE 6: 11 TAD vs. DEVICE OPERATING FREQUENCIES, PIC16C710/711 AD Clock Source (TAD) Operation ADCS<1:0> Device Frequency 20 MHz 2TOSC 00 100 8TOSC 01 400 ns(2) 1.6 µs 32TOSC 10 ns(2) 5 MHz ns(2) 400 1.6 µs 6.4 µs 1.25 MHz 333.33 kHz 1.6 µs 6 µs 6.4 µs 24 µs(3) 25.6 µs 96 µs(3) (3) 2 - 6 µs(1,4) 2 - 6 µs(1,4) 2 - 6 µs(1) 2 - 6 µs(1,4) Shaded cells are outside of recommended range. The RC source has a typical TAD time of 4 µs. These values violate the minimum required TAD time. For faster conversion times, the selection of another clock source is recommended. When device frequency is greater than 1 MHz, the RC A/D conversion clock source is recommended for SLEEP operation only. 5: For extended voltage devices (LC), please refer to Electrical Specifications section. RC(5) Legend: Note 1: 2: 3: 4: 11 2001 Microchip Technology Inc. DS40032B-page 5 NOTES: DS40032B-page 6 2001 Microchip Technology Inc. Note the following details of the code protection feature on PICmicro ® MCUs. • • • • • • The PICmicro family meets the specifications contained in the Microchip Data Sheet. Microchip believes that its family of PICmicro microcontrollers is one of the most secure products 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 PICmicro microcontroller in a manner outside the operating specifications contained in the data sheet. The person doing so may be engaged in theft of intellectual property. Microchip is willing to work with the customer who is concerned about the integrity of their code. Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not mean that we are guaranteeing the product as “unbreakable”. Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our product. If you have any further questions about this matter, please contact the local sales office nearest to you. 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 or use of such information, or infringement of patents or other intellectual property rights arising from such use or otherwise. Use of Microchip’s products as critical components in life support systems is not authorized except with express written approval by Microchip. No licenses are conveyed, implicitly or otherwise, under any intellectual property rights. Trademarks The Microchip name and logo, the Microchip logo, PIC, PICmicro, PICMASTER, PICSTART, PRO MATE, KEELOQ, SEEVAL, MPLAB and The Embedded Control Solutions Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. Total Endurance, ICSP, In-Circuit Serial Programming, FilterLab, MXDEV, microID, FlexROM, fuzzyLAB, MPASM, MPLINK, MPLIB, PICC, PICDEM, PICDEM.net, ICEPIC, Migratable Memory, FanSense, ECONOMONITOR, Select Mode, dsPIC, rfPIC and microPort are trademarks of Microchip Technology Incorporated in the U.S.A. Serialized Quick Term Programming (SQTP) is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies. © 2001, Microchip Technology Incorporated, Printed in the U.S.A., All Rights Reserved. Printed on recycled paper. Microchip received QS-9000 quality system certification for its worldwide headquarters, design and wafer fabrication facilities in Chandler and Tempe, Arizona in July 1999. The Company’s quality system processes and procedures are QS-9000 compliant for its PICmicro ® 8-bit MCUs, KEELOQ® code hopping devices, Serial EEPROMs and microperipheral products. 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