SN75186
QUADRUPLE DRIVER/RECEIVER WITH LOOPBACK
SLLS068C – FEBRUARY 1990 – REVISED MAY 1995
DW PACKAGE
(TOP VIEW)
Meets or Exceeds the Requirements of
ANSI EIA/TIA-232-E and ITU
Recommendation V.28
3A
3Z
2LB
2Z
1
24
23
22
21
20
Four Independent Drivers and Receivers
2
Loopback Mode Functionally Self-Tests
Drivers and Receivers Without
Disconnection From Line
3LB
4A
2A
3
1LB
1Z
4
4Z
5
Driver Slew Rate Limited to 30 V/µs Max
Built-In Receiver 1-µs Noise Filter
Internal Thermal Overload Protection
4LB
6
19 1A
7
18
17
16
15
14
13
V
V
V
EE
CC2
CC1
8
GND
4B
9
1Y
1B
2Y
2B
EIA/TIA-232-E Inputs and Outputs
Withstand ±30 V
10
11
12
4Y
3B
Low Supply Current . . . 2.5 mA Typ
3Y
ESD Protection Exceeds 4000 V Per
MIL-STD-833C Method 3015
FN PACKAGE
(TOP VIEW)
description
The SN75186 is a low-power bipolar device
containing four driver/receiver pairs designed to
interface data terminal equipment (DTE) with data
circuit-terminating equipment (DCE). Additionally,
the SN75186 has a loopback mode that can be
used by a data communication system to perform
a functional self-test on each driver/receiver pair,
removing the need to locally disconnect cables
and install a loopback connector. Flexibility of
control is ensured by each driver/receiver pair
having its own loopback control input. The
SN75186 is designed to conform to standards
ANSI EIA/TIA-232-E and ITU Recommendation
V.28.
4
5
3
2
1
28 27 26
25
1LB
2A
2Z
2LB
3A
3Z
1Y
1B
2Y
6
24
23
7
8
22 2B
3Y
9
21
10
11
20 3B
19 4Y
3LB
12 13 14 15 16 17 18
NC – No internal connection
The maximum slew rate is limited to 30 V/µs at
the driver outputs, and the SN75186 drives a capacitive load of 2500 pF at 20 kBaud. The receivers have input
filters that disregard input noise pulses shorter than 1 µs. The SN75186 is a robust device capable of
withstanding ±30 V at driver outputs and at receiver inputs whether powered or unpowered. This device has
an internal ESD protection rated at 4 kV to prevent functional failures.
The SN75186 is characterized for operation from 0°C to 70°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 1995, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265