MCP25055-I/P Microchip Technology, MCP25055-I/P Datasheet - Page 12

IC I/O EXPANDER CAN 8B 14DIP

MCP25055-I/P

Manufacturer Part Number
MCP25055-I/P
Description
IC I/O EXPANDER CAN 8B 14DIP
Manufacturer
Microchip Technology
Datasheets

Specifications of MCP25055-I/P

Mounting Type
Through Hole
Interface
1-Wire, CAN
Number Of I /o
8
Interrupt Output
No
Frequency - Clock
4MHz
Voltage - Supply
2.7 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Package / Case
14-DIP (0.300", 7.62mm)
Includes
ADC, Memory, PWM
Bus Frequency
4MHz
No. Of I/o's
8
Supply Voltage Range
2.7V To 5.5V
Digital Ic Case Style
DIP
No. Of Pins
14
Operating Temperature Range
-40°C To +85°C
Data Rate Max
1Mbps
Leaded Process Compatible
Yes
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DV250501 - KIT DEV CAN MCP250XX
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
MCP25055I/P

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MCP25055-I/P
Manufacturer:
MICROCHIP
Quantity:
12 000
MCP2502X/5X
2.7
The acceptance mask is used to define which bits in the
CAN ID are to be compared against the programmable
filters. Individual bits within the mask correspond to bits
in the CAN ID that, in turn, correspond to bits in the
acceptance filters. Any bit in the mask that is set to a ‘1’
will cause the corresponding CAN ID bit to be
compared against the associated filter bit. Any bit in the
mask that is set to a ‘0’ is not compared and effectively
sets the associated CAN ID bit to ‘don’t care’.
2.7.1
To insure proper operation of the information request
and input messages, some mask bits (as configured in
the mask registers) may be ignored as explained:
Message with a standard ID - the three least
significant
(RXMSIDL.SID2:SID0) are ‘don’t care’ for the mask
registers and effectively become ‘0’.
REGISTER 2-6:
DS21664D-page 12
Acceptance Mask
bit 7-0
MASKS AND STANDARD/
EXTENDED IDS
bits
of
TXIDNSIDH - TRANSMIT IDENTIFIER N STANDARD IDENTIFIER HIGH
SID10:SID3: Standard Identifier bits
Legend:
R = Readable bit
- n = Value at POR
bit 7
R/W-x
SID10
a
standard
R/W-x
SID9
identifier
R/W-x
SID8
W = Writable bit
‘1’ = Bit is set
R/W-x
SID7
Message with an extended ID - the three least
significant
(RXMSIDL.SID2:SID0) are configurable and the three
least significant bits of the extended identifier
(RXMEID0.EID2:EID0) are always ‘don’t cares’ and
effectively becomes ‘0’.
2.8
There are two separate acceptance filters defined for
the MCP2502X/5X: RXF0 and RXF1. RXF0 is used for
Information Request messages and RXF1 is used for
input messages (see Table 4-2 and Table 4-3). Each bit
in the filters corresponds to a bit in the CAN ID. Every
bit in the CAN ID, for which the corresponding Mask bit
is set, must match the associated filter bit in order for
the message to be accepted. Messages that fail to
meet the mask/fIlter criteria are ignored.
Note:
Acceptance Filters
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-x
SID6
The EXIDE bit in the Mask register
(RXMSIDL) can be used to mask the IDE
bit in the corresponding Receive buffer
register (RXBnSIDL).
bits
of
R/W-x
SID5
© 2007 Microchip Technology Inc.
the
x = Bit is unknown
standard
R/W-x
SID4
R/W-x
identifier
SID3
bit 0

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