MAX13235EEUP+T Maxim Integrated Products, MAX13235EEUP+T Datasheet - Page 12

TXRX RS-232 3MBPS 2X2 20TSSOP

MAX13235EEUP+T

Manufacturer Part Number
MAX13235EEUP+T
Description
TXRX RS-232 3MBPS 2X2 20TSSOP
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet

Specifications of MAX13235EEUP+T

Number Of Drivers/receivers
2/2
Protocol
RS232
Voltage - Supply
3 V ~ 5.5 V
Mounting Type
Surface Mount
Package / Case
20-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
3Mbps RS-232 Transceivers with
Low-Voltage Interface
ESD-protection structures are incorporated on all pins
to protect against electrostatic discharges encountered
during handling and assembly. The driver outputs and
receiver inputs of the MAX13234E–MAX13237E have
extra protection against static electricity. Maxim’s engi-
neers have developed state-of-the-art structures to pro-
tect these pins against ESD of ±15kV without damage.
The ESD structures withstand high ESD in all states:
normal operation, shutdown, and powered down. After
Figure 8a. Human Body ESD Test Model
Figure 8b. Human Body Current Waveform
12
AMPERES
VOLTAGE
SOURCE
HIGH-
______________________________________________________________________________________
DC
I
P
36.8%
100%
90%
10%
CHARGE-CURRENT
0
LIMIT RESISTOR
0
1MΩ
t
RL
R
100pF
C
C s
STORAGE
CAPACITOR
CURRENT WAVEFORM
TIME
RESISTANCE
DISCHARGE
1500Ω
±15kV ESD Protection
R
D
t
DL
I r
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
DEVICE
UNDER
TEST
an ESD event, Maxim’s E versions keep working without
latchup. ESD protection can be tested in various ways;
the transmitter outputs and receiver inputs of this prod-
uct family are characterized for protection to the follow-
ing limits:
1) ±15V Using the Human Body Model
2) ±15kV Using IEC 61000-4-2 Air-Gap Method
3) ±8kV Using IEC 61000-4-2 Contact-Discharge
Figure 9a. IEC61000-4-2 ESD Test Model
Figure 9b. IEC61000-4-2 ESD Generator Current Waveform
VOLTAGE
Method
SOURCE
HIGH-
t r = 0.7ns to 1ns
DC
CHARGE-CURRENT
LIMIT RESISTOR
100%
50MΩ to 100MΩ
90%
10%
I
R
150pF
C
C s
30ns
STORAGE
CAPACITOR
RESISTANCE
DISCHARGE
330Ω
R
D
60ns
DEVICE
UNDER
TEST
t

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