Datasheet
Table Of Contents
- Features
- Package Types
- Block Diagram
- 1.0 Device Overview
- 2.0 Electrical Characteristics
- 2.1 Terms and Definitions
- 2.1.1 Bus Voltage
- 2.1.2 Common Mode Bus Voltage Range
- 2.1.3 Differential Internal Capacitance, Cdiff (of a CAN node)
- 2.1.4 Differential Internal Resistance, Rdiff (of a CAN node)
- 2.1.5 Differential Voltage, Vdiff (of CAN bus)
- 2.1.6 Internal Capacitance, Cin (of a CAN node)
- 2.1.7 Internal Resistance, Rin (of a CAN node)
- FIGURE 2-1: Physical Layer Definitions
- Absolute Maximum Ratings†
- 2.2 DC Characteristics
- 2.3 AC Characteristics
- 2.4 Timing Diagrams and Specifications
- 2.1 Terms and Definitions
- 3.0 Packaging Information
- Product Identification System
- Appendix A: Revision History
- Worldwide Sales and Service
© 2007 Microchip Technology Inc. DS21667E-page 11
MCP2551
FIGURE 2-2: TEST CIRCUIT FOR AUTOMOTIVE TRANSIENTS
FIGURE 2-3: HYSTERESIS OF THE RECEIVER
RS
Rext
GND
RXD
V
REF
TXD
60Ω
500 pF
500 pF
Note: RS may be connected to VDD or
GND via a load resistor depending
on desired operating mode as
described in Section 1.7.8, “Slope
Resistor Input (Rs)”
CANH
CANL
CAN
Transceiver
Schaffner
Generator
The wave forms of the applied transients shall be in accordance with “ISO-7637, Part 1”, test pulses 1, 2, 3a and 3b.
VOH
VOL
0.5 0.9
hysteresis
D19
Vdiff (V)
RXD (receive data
output voltage)
VDIFF (r)(i)
VDIFF (d)(i)