High-speed
CAN
Transceiver
ATA6660
Rev. 4582B–BCD–03/03
Features
• Usable for Automotive 12 V/24 V and Industrial Applications
Maximum High-speed Data Transmissions up to 1 MBaud
Fully Compatible with ISO 11898
Controlled Slew Rate
Standby Mode
TXD Input Compatible to 3.3 V
Short-circuit Protection
Overtemperature Protection
High Voltage Bus Lines Protection, -40 V to +40 V
High Speed Differential Receiver Stage with a Wide Common Mode Range,
-10 V to +10 V, for High Electromagnetic Immunity (EMI)
Fully Controlled Bus Lines, CANH and CANL to Minimize
Electromagnetic Emissions (EME)
High ESD Protection at CANH, CANL HBM 8 kV, MM 300 V
Description
The ATA6660 is a monolithic circuit based on the Atmel’s Smart Power BCD60-III
technology. It is especially designed for high speed CAN-Controller (CAN-C) differen-
tial mode data transmission between CAN-Controllers and the physical differential bus
lines.
Figure 1. Block Diagram
4 RXD
5 VREF
7 CANH
6 CANL
8 RS
2 GND
3 VCC
1 TXD
TXD input stage
Constant slope/
standby
Overtemperature
and Short circuit
protection
Driver
Reference
Voltage
0.5*VCC
Receiver
1