Datasheet

MAX3040–MAX3045
±10kV ESD-Protected, Quad 5V RS-485/RS-422
Transmitters
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Pin Description
PIN
MAX3040/MAX3041/
MAX3042B
MAX3043/MAX3044/
MAX3045B
NAME
FUNCTION
1 1 T1IN Transmitter 1 Input
2 2 Y1 Noninverting Transmitter 1 Output
3 3 Z1 Inverting Transmitter 1 Output
— 4EN
Transmitter Enable High Input. Drive EN high to enable all four
transmitters. When EN is low and EN is high, all transmitters are
disabled and the part enters a low-power shutdown state. The
transmitter outputs are high impedance when disabled.
4 — EN12
Transmitter Enable Input to Control Transmitters 1 and 2. Drive EN12
high to enable transmitters 1 and 2. Drive EN12 low to disable
transmitters 1 and 2. The transmitter outputs are high impedance
when disabled. The part enters a low-power shutdown state when
both EN12 and EN34 are low.
5 5 Z2 Inverting Transmitter 2 Output
6 6 Y2 Noninverting Transmitter 2 Output
7 7 T2IN Transmitter 2 Input
8 8 GND Ground
9 9 T3IN Transmitter 3 Input
10 10 Y3 Noninverting Transmitter 3 Output
11 11 Z3 Inverting Transmitter 3 Output
— 12 EN
Transmitter Enable Low Input. Drive EN low to enable all four
transmitters. When EN is low and EN is high, all transmitters are
disabled and the part enters a low-power shutdown state. The
transmitter outputs are high impedance when disabled.
12 — EN34
Transmitter Enable Input to Control Transmitters 3 and 4. Drive EN34
high to enable transmitters 3 and 4. Drive EN34 low to disable
transmitters 3 and 4. The transmitter outputs are high impedance
when disabled. The part enters a low-power shutdown state when
both EN12 and EN34 are low.
13 13 Z4 Inverting Transmitter 4 Output
14 14 Y4 Noninverting Transmitter 4 Output
15 15 T4IN Transmitter 4 Input
16 16 V
CC
Positive Supply. Bypass with a 0.1µF capacitor to GND.