MAX14782E_14 Datasheet, PDF (11/17 Pages) Maxim Integrated Products – 500Kbps 3.3V to 5V RS-485/RS-422 Transceiver with ±35kV HBM ESD Protection

MAX14782E
500Kbps 3.3V to 5V RS-485/RS-422 Transceiver
with ±35kV HBM ESD Protection
Pin Configuration
V_CC B
87
A GND
65
MAX14782E
+
*EP
1 234
RO RE DE DI
TDFN-EP
*CONNECT EXPOSED PAD (EP) TO GND
TOP VIEW
RO 1 ⁺
RE 2
DE 3
MAX14782E
DI 4
µMAX/SO
8 V_CC
7B
6A
5 GND
Pin Description
PIN
NAME
1
RO
2
RE
3
DE
4
DI
5
GND
6
A
7
B
8
V_CC
—
EP
Receiver Output. See Function Tables.
FUNCTION
Receiver Output Enable. Drive RE low to enable RO. Drive RE high to disable the receiver. RO is high
impedance when RE is high. Drive RE high and pull DE low to enter low-power shutdown mode.
Driver Output Enable. Drive DE high to enable the driver. Drive DE low to disable the driver. Driver
outputs are high-impedance when the driver is disabled. Drive RE high and pull DE low to enter low-
power shutdown mode.
Driver Input. With DE high, a low on DI forces the A output low and the B output high. Similarly, a high
on DI forces the A output high and B output low.
Ground
Noninverting RS-485/RS-422 Receiver Input and Driver Output
Inverting RS-485/RS-422 Receiver Input and Driver Output
Positive Supply Voltage Input. Bypass V_CC with a 0.1µF ceramic capacitor to ground.
Exposed Pad (TDFN only). Connect EP to GND.
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