PIC18F8490 Datasheet, PDF (1/10 Pages) Microchip Technology – PIC18F6390/6490/8390/8490 Rev.B3 SILICON ERRATA

PIC18F6390/6490/8390/8490
PIC18F6390/6490/8390/8490 Rev. B3 Silicon Errata
The PIC18F6390/6490/8390/8490 Rev. B3 parts you
have received conform functionally to the Device Data
Sheet (DS39629), except for the anomalies described
below. Any Data Sheet Clarification issues related to
the PIC18F6390/6490/8390/8490 will be reported in a
separate Data Sheet errata. Please check the
Microchip web site for any existing issues.
All of the issues listed here will be addressed in future
revisions of the PIC18F6390/6490/8390/8490 silicon.
The following silicon errata apply only to
PIC18F6390/6490/8390/8490 devices with these
Device/Revision IDs:
Part Number
Device ID
Revision ID
PIC18F6390 00 1011 101
00011
PIC18F6490 00 0110 101
00011
PIC18F8390 00 1101 100
00011
PIC18F8490 00 0110 100
00011
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”.
1. Module: MSSP
In its current implementation, the I²C™ Master
mode operates as follows:
a) The Baud Rate Generator for I²C in Master
mode is slower than the rates specified in
Table 15-3 of the Device Data Sheet.
For this revision of silicon, use the values
shown in Table 1 in place of those shown in
Table 15-3 of the Device Data Sheet. The
differences are shown in bold text.
b) Use the following formula in place of the one
shown in Register 15-4 (SSPCON1) of the
Device Data Sheet for bit description
SSPM3:SSPM0 = 1000.
SSPADD = INT((FCY/FSCL) – (FCY/1.111 MHz)) – 1
Date Codes that pertain to this issue:
All engineering and production devices.
TABLE 1: I²C™ CLOCK RATE w/BRG
FOSC
FCY
FCY * 2
BRG Value
FSCL
(2 Rollovers of BRG)
40 MHz
10 MHz
20 MHz
0Eh
400 kHz⁽¹⁾
40 MHz
10 MHz
20 MHz
15h
312.5 kHz
40 MHz
16 MHz
10 MHz
4 MHz
20 MHz
8 MHz
59h
100 kHz
05h
400 kHz⁽¹⁾
16 MHz
4 MHz
8 MHz
08h
308 kHz
16 MHz
4 MHz
4 MHz
1 MHz
8 MHz
2 MHz
23h
100 kHz
01h
333 kHz⁽¹⁾
4 MHz
1 MHz
2 MHz
08h
100 kHz
4 MHz
1 MHz
2 MHz
00h
1 MHz⁽¹⁾
Note 1: The I²C™ interface does not conform to the 400 kHz I²C specification (which applies to rates greater than
100 kHz) in all details, but may be used with care where higher rates are required by the application.
© 2005 Microchip Technology Inc.
DS80207B-page 1