PIC16C65A/PIC16C65B [ETC]
PIC16C65A to PIC16C65B Migration ; PIC16C65A到PIC16C65B迁移\n
| 型号： | PIC16C65A/PIC16C65B |
| 厂家： | 
ETC |
| 描述： | PIC16C65A to PIC16C65B Migration
|
| 文件： | 总4页 (文件大小：84K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
M
PIC16C65A → PIC16C65B 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 elec-
trical specification designed to determine its conformance with these parameters. Due to process differ-
ences 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.
Note: 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 1 shows the considerations that must be taken into account when migrating from the PIC16C65A to the
PIC16C65B.
TABLE 1:
Functional Differences due to Errata or Module Update
No. Module Difference
PIC16C65A → PIC16C65B DIFFERENCES
H/W S/W Prog.
1
2
3
CCP
CCP Special Event Trigger clears Timer1.
—
—
—
—
—
—
Compare mode drives pin correctly.
Timers
Reading or writing TMR1H or TMR1L may affect TMR1H or TMR1L
unexpectedly.
4
5
6
7
WDT/TMR0 prescaler assignment changes do not affect TMR0 count.
TMR2 SPI™ clock synchronized to start of SPI Transmission.
Can now transmit multiple words in SPI mode.
—
—
—
—
—
—
—
—
SSP
Supports all four SPI modes. (Now uses SSP vs BSSP module.)
See SSP module in the PICmicro™ Mid-Range MCU Family Reference
Manual (DS33023).
2
8
9
—
—
I C™ no longer generates ACK pulses when module is enabled.
USART
Async receive errors due to BRGH setting corrected.
—
—
—
—
—
—
10 Oscillator TOST delay may be skipped when waking from SLEEP.
11 RESET
12
Short MCLR pulses may cause improper operation on the PIC16C65B.
Operating voltage and frequency ranges have been redefined.
—
—
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.
2001 Microchip Technology Inc.
DS30322B-page 1
TABLE 2:
ELECTRICAL SPECIFICATION DIFFERENCES
PIC16C65A
PIC16C65B
Param
No.
Symbol
Characteristic
Unit
Min
Typ†
Max
Min
Typ†
Max
Core
VDD
Supply Voltage
D001
D001A
XT, LP and RC mode
HS mode
BOR enabled (Note 1)
4.0
4.5
—
—
—
—
6.0
5.5
—
4.0
4.0
VBOR
—
—
—
5.5
5.5
5.5
V
V
V
D005
D150
VBOR
VOD
Brown-out Reset Voltage
3.7
—
4.0
—
4.3
3.65
—
—
4.35
8.5
V
V
Open Drain High Voltage on
RA4
14.0
—
SSP in SPI mode
71
TscH
SCK input high
time (Slave mode)
Continuous TCY+20
Single Byte
—
—
—
—
1.25TCY + 30
—
—
—
—
—
—
—
—
—
—
ns
ns
ns
ns
ns
71A
72
40
1.25TCY + 30
40
TscL
SCK input low
time (Slave mode)
Continuous TCY+20
Single Byte
72A
73
TdiV2scH Setup time of SDI data input to
TdiV2scL SCK edge
50
—
50
—
—
—
—
10
—
—
—
25
100
73A
(Note 2)
TB2B
Last clock edge of Byte1 to the
1st clock edge of Byte2
1.5TCY + 40
100
—
—
—
—
ns
ns
74
75
TscH2diL Hold time of SDI data input to
TscL2diL SCK edge
TdoR
SDO data output PIC16CXX
rise time
—
—
—
—
10
20
10
20
25
45
25
45
ns
ns
ns
ns
PIC16LCXX
SCK output rise PIC16CXX
78
80
83
TscR
—
—
—
10
—
—
25
50
—
time (Master
mode)
PIC16LCXX
TscH2doV SDO data output PIC16CXX
TscL2doV valid after SCK
edge
—
—
—
—
50
ns
ns
PIC16LCXX
100
TscH2ssH SS ↑ after SCK edge
1.5TCY + 40
—
—
ns
TscL2ssH
† Data in “Typ” column is at 5V, 25°C unless otherwise stated. These parameters are for design guidance only and are
not tested.
Note 1: When BOR is enabled, the device will operate until VDD drops below VBOR.
2: Specification 73A is only required if specifications 71A and 72A are used.
DS30322B-page 2
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 knowl-
edge, 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 com-
ponents in life support systems is not authorized except with
express written approval by Microchip. No licenses are con-
veyed, 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 reg-
istered 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. In addition, Microchip’s quality
system for the design and manufacture of
development systems is ISO 9001 certified.
2001 Microchip Technology Inc.
DS30322B - page 3
M
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08/01/01
DS30322B-page 4
2001 Microchip Technology Inc.
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