MAX14783E Datasheet, PDF (11/18 Pages) Maxim Integrated Products – Encoder Interfaces

MAX14783E
High-Speed 3.3V/5V RS-485/RS-422 Transceiver
with ±35kV HBM ESD Protection
Pin Configuration
V_CC B
87
A GND
65
TOP VIEW
RO 1 ⁺
8 V_CC
MAX14783E
RE 2
MAX14783E
7B
DE 3
6A
+
*EP
1 234
RO RE DE DI
TDFN-EP
*CONNECT EXPOSED PAD (EP) TO GND
Pin Description
DI 4
DRIVER PROPAGATION DELAY
vs. TEMPERATURE _µMAX/SO
30
R_L = 54Ω
C_L = 50pF
25
t_DPHL, V_CC = 3.3V
20
t_DPLH, V_CC = 3.3V
15
5 GND
PIN
NAME
10
FUNCTION
tDPHL, VCC = 5V
1
RO
Receiver Output. See Functi₅on Ta_tDb_PLle_H,s_V._{CC = 5V}
2
RE
Receiver Output Enable. Drive RE low to enable RO. Drive RE high to disable the receiver. RO is high
impedance when RE is high.⁰ Drive RE high and pull DE low to enter low-power shutdown mode.
-40 -25 -10 5 20 35 50 65 80 95 110 125
Driver Output Enable. Drive DE high to eTnEMaPbEleRAtThUeREd(r°iCv)er. Drive DE low to disable the driver. Driver
3
DE
outputs are high-impedance when the driver is disabled. Drive RE high and pull DE low to enter low-
power shutdown mode.
4
DI
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.
5
GND
Ground
6
A
Noninverting RS-485/RS-422 Receiver Input and Driver Output
7
B
Inverting RS-485/RS-422 Receiver Input and Driver Output
8
V_CC
Positive Supply Voltage Input. Bypass V_CC with a 0.1µF ceramic capacitor to ground.
—
EP
Exposed Pad (TDFN only). Connect EP to GND.
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