SN65HVD230
SN65HVD231
SN65HVD232
SLOS346G – MARCH 2001 – REVISED JUNE 2002
TYPICAL CHARACTERISTICS
REFERENCE VOLTAGE
vs
REFERENCE CURRENT
3
2.5
2
V
CC
= 3.6 V
1.5
V
CC
= 3 V
1
0.5
0
–50
–5
5
50
I
– Reference Current – µA
ref
Figure 26
APPLICATION INFORMATION
This application provides information concerning the implementation of the physical medium attachment layer
in a CAN network according to the ISO 11898 standard. It presents a typical application circuit and test results,
as well as discussions on slope control, total loop delay, and interoperability in 5-V systems.
introduction
ISO 11898 is the international standard for high-speed serial communication using the controller area network
(CAN) bus protocol. It supports multimaster operation, real-time control, programmable data rates up to 1 Mbps,
and powerful redundant error checking procedures that provide reliable data transmission. It is suited for
networking intelligent devices as well as sensors and actuators within the rugged electrical environment of a
machine chassis or factory floor. The SN65HVD230 family of 3.3-V CAN transceivers implement the lowest
layers of the ISO/OSI reference model. This is the interface with the physical signaling output of the CAN
controller of the Texas Instruments TMS320Lx240x 3.3–V DSPs, as illustrated in Figure 27.
18
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