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© 2008 Microchip Technology Inc. DS80119B-page 1
MCP250XX
The Device# parts you have received conform function-
ally to the Device Data Sheet (DS21664D), except for
the anomalies described below.
These Errata are associated with the following Micro-
chip devices:
- MCP25020
- MCP25025
- MCP25050
- MCP25055
All of the issues listed here will be addressed in future
revisions of the MCP250XX silicon.
1. Module: CAN
The CAN module may send a passive error flag
earlier than expected. This will occur at the transi-
tion point of error active to error passive, TEC
(Transmit Error Count), or REC (Receive Error
Count) ≥ 128.
Work around
None
Date Codes that pertain to this issue:
All engineering and production devices.
2. Module: CAN
The CAN module may not synchronize correctly if
there is a phase error between nodes that is equal
to the Synchronization Jump Width (SJW). As a
result, the module may request retransmission of
messages from the transmitting node (via an Error
Frame).
Work around
Use the longest SJW possible that will work with
the application.
Date Codes that pertain to this issue:
All engineering and production devices.
3. Module: Control Logic
The device may exceed the maximum standby
current specification (IDDS) when it is initially
placed into SLEEP mode (OPTREG2.SLPEN bit is
set).
This condition may peak at
≥ 2 mA for a duration
of ≤ 10 seconds, up to 5 seconds after the SLEEP
mode command is received, with the magnitude
and length of time being dependent on external
conditions, including device voltage and tempera-
ture range.
Work around
None
Date Codes that pertain to this issue:
All engineering and production devices.
4. Module: CAN TX Module
If an error frame occurs on the CAN bus during
message transmission by the MCP250XX, the
internal flags are cleared, however, the internal
byte counter does not clear. This causes the
retransmitted message to become corrupted.
Work around
The CAN node(s) interested in MCP250XX mes-
sages should discard the subsequent MCP250XX
message after an error frame is detected on the
bus.
Date Codes that pertain to this issue:
All engineering and production devices.
CLARIFICATIONS/CORRECTIONS TO
THE DATA SHEET:
In the Device Data Sheet (DS21664D), the following
clarifications and corrections should be noted.
•None
MCP250XX Rev. A2 Silicon Errata

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