7

Maxim Integrated

MAX13051

±80V Fault-Protected Can Transceiver

with Autobaud

Typical Operating Characteristics (continued)

DRIVER PROPAGATION DELAY,

MAX13051 toc11

200ns/div

TXD

(2V/div)

(1V/div)

LOOPBACK PROPAGATION DELAY

Ω)

180

160

140

120

100

80

60

40

20

0.2

0.4

0.6

0.8

1.0

1.2

1.4

0

0

200

RECESSIVE

DOMINANT

PIN

NAME

FUNCTION

1

TXD

Transmit Data Input. TXD is a CMOS/TTL-compatible input from a CAN controller.

2

GND

Ground

4

RXD

Receive Data Output. RXD is a CMOS/TTL-compatible output from the physical bus lines CANH and CANL.

5

AUTOBAUD

Autobaud Input. Drive AUTOBAUD low for normal operation. Drive AUTOBAUD high for autobaud

operation. When operating in autobaud mode, TXD is looped back to RXD without applying a differential

signal at CANH and CANL.

6

CANL

CAN Bus Line Low

7

CANH

CAN Bus Line High

8RS

Mode-Select Input. Drive RS low or connect to GND for high-speed operation. Connect a resistor between

RS and GND to control output slope. Drive RS high to put into standby mode.

Pin Description