19-2403; Rev 0; 8/95
±15kV ESD-Protected, Quad, Low-Power
RS-232 Line Driver
_______________General Description
The MAX1488E quad, low-power line driver is designed
for EIA/TIA-232, EIA/TIA-562, and CCITT V.28 commu-
nications in harsh environments. Each transmitter out-
put is protected against ±15kV electrostatic discharge
(ESD) shocks. The inputs are TTL and CMOS compati-
ble with minimal loading. The outputs feature internally
controlled slew-rate limiting and current limiting. This
device has a guaranteed 120kbps data rate. Power-
supply current is less than 180µA over a ±4.5V to
±13.2V supply voltage range.
The MAX1488E is pin compatible with the MC1488,
MC14C88, SN75188, SN75C188, DS1488, and
DS14C88. It is available in 14-pin plastic DIP and SO
packages.
____________________________Features
o
ESD Protection:
±15kV—Human Body Model
±6kV—IEC801-2, Contact Discharge
±15kV—IEC801-2, Air-Gap Discharge
o
Latchup Free, Even During an ESD Event
o
Low 85µA Supply Current from I
EE
or I
CC
o
Guaranteed 120kbps Data Rate
o
No External Capacitors Required for Slew-Rate
Limiting
o
Pin Compatible with MC1488, MC14C88, SN75188,
SN75C188, DS1488, and DS14C88
MAX1488E
________________________Applications
PC Motherboards
Modems
Interface 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
MAX1488ECPD
MAX1488ECSD
MAX1488EC/D
MAX1488EEPD
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +85°C
PIN-PACKAGE
14 Plastic DIP
14 SO
Dice*
14 Plastic DIP
14 SO
MAX1488EESD
-40°C to +85°C
* Dice are specified at T
A
= +25°C.
__________Typical Operating Circuit
__________________Pin Configuration
1
⁄
4
MAX1488E
1
⁄
4
MAX1489E
TOP VIEW
V
EE
1
TTL/CMOS
LOGIC
INTERCONNECTING
CABLE
TTL/CMOS
LOGIC
INPUT A 2
OUTPUT A 3
INPUT B1 4
14 V
CC
MAX1488E
13 INPUT D1
12 INPUT D2
11 OUTPUT D
10 INPUT C1
9
8
INPUT C2
OUTPUT C
1
⁄
4
MAX1489E
SIGNAL GROUND
1
⁄
4
MAX1488E
INPUT B2 5
OUTPUT B 6
GND 7
PC
MOTHERBOARD
(DTE)
MODEM
(DCE)
DIP/SO
________________________________________________________________
Maxim Integrated Products
1
Call toll free 1-800-998-8800 for free samples or literature.
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