SN65HVD230
SN65HVD231
SN65HVD232
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SLOS346H–MARCH 2001–REVISED JULY 2006
APPLICATION INFORMATION (continued)
Electronic Control Unit (ECU)
TMS320Lx2403/6/7
CAN-Controller
CANTX/IOPC6
CANRX/IOPC7
D
R
SN65HVD230
CANH
CANL
CAN Bus Line
Figure 32. Details of a Typical CAN Node
ECU
1
ECU
2
ECU
n
CANH
CAN Bus Line
120 Ω
120 Ω
CANL
Figure 33. Typical CAN Network
The SN65HVD230/231/232 3.3-V CAN transceivers provide the interface between the 3.3-V TMS320Lx2403/6/7
CAN DSPs and the differential bus line, and are designed to transmit data at signaling rates up to 1 Mbps as
defined by the ISO 11898 standard.
FEATURES of the SN65HVD230, SN65HVD231, and SN65HVD232
The SN65HVD230/231/232 are pin-compatible (but not functionally identical) with one another and, depending
upon the application, may be used with identical circuit boards.
These transceivers feature 3.3-V operation and standard compatibility with signaling rates up to 1 Mbps, and
also offer 16-kV HBM ESD protection on the bus pins, thermal shutdown protection, bus fault protection, and
open-circuit receiver failsafe. The fail-safe design of the receiver assures a logic high at the receiver output if the
bus wires become open circuited. If a high ambient operating environment temperature or excessive output
current result in thermal shutdown, the bus pins become high impedance, while the D and R pins default to a
logic high.
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