MAX13430E_09 Datasheet, PDF (12/20 Pages) Maxim Integrated Products – RS-485 Transceivers with Low-Voltage Logic Interface

RS-485 Transceivers with Low-Voltage
Logic Interface
PIN
MAX13432E/MAX13433E
SO
TDFN
1
1
2
2
3
3
4
5
6
7, 13
8
9
10
11
12
14
—
4
5
6
7, 13
8
9
10
11
12
14
—
Pin Description (continued)
NAME
FUNCTION
V_L
RO
DE
RE
DI
GND
N.C.
GND
Y
Z
B
A
V_CC
EP
V_L Input Logic Supply Voltage. Bypass V_L with a 0.1µF ceramic capacitor located as
close as possible to the input.
Receiver Output. When RE is low and if (A - B) ≥ -50mV, RO is high; if (A - B) ≤ -200mV,
RO is low.
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. DE is a hot-swap input (see the Hot-Swap Capability section for details.)
Active-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. RE is a
hot-swap input (see the Hot-Swap Capability section for details.)
Driver Input. With DE high, a low on DI forces noninverting output low and inverting output
high. Similarly, a high on DI forces noninverting output high and inverting output low.
Ground
No Connection. Not internally connected. N.C. can be connected to GND.
Ground
Noninverting Driver Output
Inverting Driver Output
Inverting Receiver Input
Noninverting Receiver Input
V_CC Input Supply Voltage. Bypass V_CC with a 1µF ceramic capacitor located as close
as possible to the input for full ESD protection. If full ESD protection is not required,
bypass V_CC with a 0.1µF ceramic capacitor.
Exposed Pad (TDFN Only). Connect EP to GND.
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