MAX3082 MAXIM [Maxim Integrated Products], MAX3082 Datasheet - Page 10

• Manufacturer Part Number: MAX3082
• Description: Fail-Safe, High-Speed 10Mbps, Slew-Rate-Limited RS-485/RS-422 Transceivers
• Manufacturer: MAXIM [Maxim Integrated Products]

Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
10
MAX3080
MAX3083
MAX3086
FULL-DUPLEX
6, 7
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—
—
—
10
—
11
—
—
2
3
4
5
9
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DEVICES
MAX3081
MAX3084
MAX3087
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—
—
—
—
—
—
—
—
2
3
4
5
6
7
MAX3082
MAX3085
MAX3088
DEVICES
DUPLEX
HALF-
PIN
PIN
—
—
—
—
—
—
—
—
—
1
2
3
4
5
7
DUPLEX
MODE
FULL-
10
11
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—
—
—
1
2
3
4
5
6
7
8
9
MAX3089
DUPLEX
MODE
HALF-
—
—
10
—
11
—
1
2
3
4
5
6
7
8
9
NAME
GND
SRL
TXP
H/F
RO
RE
DE
DI
Y
Y
Z
Z
B
B
B
Half/Full-Duplex Selector Pin. Connect H/F to V
mode; connect to GND or leave unconnected for full-duplex mode.
Receiver Output. When RE is low and if A - B ≥ -50mV, RO will be
high; if A - B ≤ -200mV, RO will be low.
Receiver Output Enable. Drive RE low to enable RO; RO is high
impedance when RE is high. Drive RE high and DE low to enter
low-power shutdown mode.
Driver Output Enable. Drive DE high to enable driver outputs. These
outputs are high impedance when DE is low. Drive RE high and DE
low to enter low-power shutdown mode.
Driver Input. With DE high, a low on DI forces noninverting output
low and inverting output high. Similarly, a high on DI forces non-
inverting output high and inverting output low.
Slew-Rate-Limit Selector Pin. Connect SRL to GND for 10Mbps
communication rate; connect to V
rate. Leave unconnected for 115kbps communication rate.
Ground
Transmitter Phase. Connect TXP to GND, or leave floating for normal
transmitter phase/polarity. Connect to V
phase/polarity.
Noninverting Driver Output
Noninverting Receiver Input and Noninverting Driver Output*
Inverting Driver Output
Inverting Receiver Input and Inverting Driver Output*
Inverting Receiver Input
Receiver Input Resistors*
Inverting Receiver Input and Inverting Driver Output
FUNCTION
CC
for 500kbps communication
CC
Pin Description
to invert the transmitter
CC
for half-duplex