MAX3042BCWE 查看數據表（PDF） - Maxim Integrated
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MAX3042BCWE Datasheet PDF : 15 Pages
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±10kV ESD-Protected, Quad 5V RS-485/RS-422
Transmitters
Pin Description
PIN
MAX3040/MAX3041/ MAX3043/MAX3044/
MAX3042B
MAX3045B
1
1
2
2
3
3
—
4
4
—
5
5
6
6
7
7
8
8
9
9
10
10
11
11
—
12
12
—
13
13
14
14
15
15
16
16
NAME
T1IN
Y1
Z1
EN
EN12
Z2
Y2
T2IN
GND
T3IN
Y3
Z3
EN
EN34
Z4
Y4
T4IN
VCC
FUNCTION
Transmitter 1 Input
Noninverting Transmitter 1 Output
Inverting Transmitter 1 Output
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.
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.
Inverting Transmitter 2 Output
Noninverting Transmitter 2 Output
Transmitter 2 Input
Ground
Transmitter 3 Input
Noninverting Transmitter 3 Output
Inverting Transmitter 3 Output
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.
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.
Inverting Transmitter 4 Output
Noninverting Transmitter 4 Output
Transmitter 4 Input
Positive Supply. Bypass with a 0.1µF capacitor to GND.
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