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PIC18F2331T-E/SOG 其他数据使用手册 - Microchip（微芯）
制造商:
Microchip（微芯）
分类:
微控制器
封装:
SOIC-28
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PIC18F2331T-E/SOG数据手册
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© 2005 Microchip Technology Inc. DS80180C-page 1
PIC18F2331/2431/4331/4431
The PIC18F2331/2431/4331/4431 parts you have
received conform functionally to the Device Data Sheet
(DS39616), except for the anomalies described below.
Any Data Sheet Clarification issues related to the
PIC18F2331/2431/4331/4431 will be reported in a
separate Data Sheet errata. Please check the
Microchip web site for any existing issues.
All the issues listed here will be addressed in future
revisions of the PIC18F2331/2431/4331/4431 silicon.
The following silicon errata apply only to
PIC18F2331/2431/4331/4431 devices with these
Device/Revision IDs:
1. Module: Timer5
In Debug mode (using the MPLAB
®
ICD 2), if
“Freeze on Halt” is selected (an option in the
MPLAB ICD 2 settings under the Program tab),
TMR5L will not increment properly when single
stepping if the prescaler is not set to 1:1.
Work around
None. Use in Debug mode only with the 1:1
prescaler.
Date Codes that pertain to this issue:
All engineering and production devices.
2. Module: In-Circuit Serial Programming™
(ICSP™)
A small number of parts may be difficult to program
successfully at certain voltages using the MPLAB
®
ICD 2.
Work around
If such a part is encountered, attempt to program
several times. If unsuccessful, adjust V
DD up or
down slightly, within the operating range of the
device. If this is not possible, then try another part.
Date Codes that pertain to this issue:
All engineering and production devices.
3. Module: PCPWM
When the PCPWM is operated in Complementary
mode with a non-zero dead-time value and the
duty cycle results in an active-low time of less than
1T
CY, the PWM generator will miss the rising edge
for a new PWM period and the PWM output will
alternate between one PWM period high and one
PWM period low.
Work around
When in Complementary mode with a non-zero
dead-time value, ensure that the active-low time
will always be greater than 1TCY. In other words,
when dead-time is not equal to zero, ensure that:
PDCH:PDCL < (4 * PTPERH:PTPERL)
or
PDCH:PDCL > (4 * (PTPERH:PTPERL + 1))
Date Codes that pertain to this issue:
All engineering and production devices.
Part Number Device ID Revision ID
PIC18F2331 00 1000 111 00001
PIC18F2431 00 1000 110 00001
PIC18F4331 00 1000 101 00001
PIC18F4431 00 1000 100 00001
The Device IDs (DEVID1 and DEVID2) are located at
addresses 3FFFFEh:3FFFFFh in the device’s
configuration space. They are shown in hexadecimal
in the format “DEVID2 DEVID1”.
PIC18F2331/2431/4331/4431 Rev. A2 Silicon Errata
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