19-0426; Rev 0; 8/95
±15kV ESD-Protected, Quad,
Low-Power RS-232 Line Receiver
_______________General Description
The MAX1489E quad, low-power line receiver is
designed for EIA/TIA-232, EIA/TIA-562, and CCITT V.28
communications in harsh environments. Each receiver
input is protected against ±15kV electrostatic dis-
charge (ESD) shocks. These inputs have a ±25V range
and feature hysteresis and time-domain filtering. The
outputs are TTL and CMOS compatible. The MAX1489E
has a 120kbps guaranteed data rate. Supply current is
typically 350µA.
The MAX1489E is pin compatible with the MC1489,
MC14C89, SN75189, SN75C189, DS1489, and
DS14C89. It is available in 14-pin plastic DIP and SO
packages.
____________________________Features
o
Enhanced ESD Protection:
±15kV—Human Body Model
±8kV—IEC1000-4-2, Contact Discharge
±15kV—IEC1000-4-2, Air-Gap Discharge
o
Latchup Free During an ESD Event
o
Low 350µA Supply Current
o
Input Hysteresis and Time-Domain Filtering
Eliminate the Need for External Filtering
o
Stable Input Thresholds
o
Pin Compatible with MC1489, MC14C89, SN75189,
SN75C189, DS1489, and DS14C89
MAX1489E
________________________Applications
PC Motherboards
Modems
Interfacing Data Terminal Equipment (DTE) with
Data Circuit-Terminating Equipment (DCE)
Equipment Meeting IEC1000-4-2 (formerly
IEC801-2) or ±15kV ESD Protection
______________Ordering Information
PART
MAX1489ECPD
MAX1489ECSD
MAX1489EC/D
MAX1489EEPD
MAX1489EESD
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
14 Plastic DIP
14 SO
Dice*
14 Plastic DIP
14 SO
* Dice are specified at T
A
= +25°C.
__________Typical Operating Circuit
__________________Pin Configuration
1
⁄
4
MAX1488E
1
⁄
4
MAX1489E
TOP VIEW
INPUT A 1
TTL/CMOS
LOGIC
INTERCONNECTING
CABLE
TTL/CMOS
LOGIC
N.C. 2
OUTPUT A 3
INPUT B 4
N.C. 5
MAX1489E
14 V
CC
13 INPUT D
12 N.C.
11 OUTPUT D
10 INPUT C
9
8
N.C.
OUTPUT C
1
⁄
4
MAX1489E
SIGNAL GROUND
PC
MOTHERBOARD
(DTE)
1
⁄
4
MAX1488E
OUTPUT B 6
GND 7
MODEM
(DCE)
DIP/SO
________________________________________________________________
Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.
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