MCP2551 Microchip Technology, MCP2551 Datasheet - Page 4

• Manufacturer Part Number: MCP2551
• Description: High-Speed CAN Transceiver
• Manufacturer: Microchip Technology

MCP2551
TABLE 1-1:
TABLE 1-2:
FIGURE 1-1:
DS21667C-page 4
Standby
Slope-Control
High-Speed
Note 1: If another bus node is transmitting a dominant bit on the CAN bus, then RXD is a logic 0.
V
4.5V
POR
0 < V
(See Note 3)
2: X = “don’t care”.
3: Device drivers will function, although outputs are not guaranteed to meet the ISO-11898 specification.
Mode
< V
DD
V
V
DD
DD
DD
< V
< 4.5V
POR
5.5V
MODES OF OPERATION
TRANSCEIVER TRUTH TABLE
SLEW RATE VS. SLOPE-CONTROL RESISTANCE VALUE
V
V
V
V
10 µA < -I
RS
RS
RS
RS
25
20
15
10
Current at R
5
0
< 0.75V
> 0.75V
< 0.75V
> 0.75V
-I
10 20 30 40 49 60 70 76 90 100 110 120
V
-I
RS
X
RS
RS
< 610 µA
< 10 µA
RS
DD
DD
DD
DD
< 200 µA
s
Pin
1 or floating
1 or floating
TXD
X
X
X
0
0
Preliminary
Resistance (k )
0.4V
V
0 < V
RS
Not Driven/
DD
Not Driven
Not Driven
Not Driven
Not Driven
> 0.75V
No Load
RS
CANH
HIGH
HIGH
< V
< 0.3V
RS
DD
< 0.6V
DD
Resulting Voltage at R
DD
Not Driven/
Not Driven
Not Driven
Not Driven
Not Driven
No Load
CANL
LOW
LOW
2002 Microchip Technology Inc.
High Impedance
Bus State
Recessive
Recessive
Recessive
Recessive
Dominant
Dominant
S
Pin
( 1)
R
XD
0
1
1
0
1
1
X
( 1)