DS14185WM/NOPB National Semiconductor, DS14185WM/NOPB Datasheet

IC DVR/RCVR EIA/TIA-232 20-SOIC

DS14185WM/NOPB

Manufacturer Part Number
DS14185WM/NOPB
Description
IC DVR/RCVR EIA/TIA-232 20-SOIC
Manufacturer
National Semiconductor
Type
Transceiverr
Datasheet

Specifications of DS14185WM/NOPB

Number Of Drivers/receivers
3/5
Protocol
RS232
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
*DS14185WM/NOPB
© 2004 National Semiconductor Corporation
DS14185
EIA/TIA-232 3 Driver x 5 Receiver
General Description
The DS14185 is a three driver, five receiver device which
conforms to the EIA/TIA-232-E standard.
The flow-through pinout facilitates simple non-crossover
board layout. The DS14185 provides a one-chip solution for
the common 9-pin serial RS-232 interface between data
terminal and data communications equipment.
Features
n Replaces one 1488 and two 1489s
n Conforms to EIA/TIA-232-E
n 3 drivers and 5 receivers
Connection Diagram
LapLink
®
is a registered trademark of Travelling Software.
Order Number DS14185WM
See NS Package M20B
SOIC
DS011938
01193801
n Flow through pinout
n Failsafe receiver outputs
n 20-pin SOIC package
n LapLink
Functional Diagram
®
compatible −200 kbps data rate
01193802
www.national.com
April 1999

Related parts for DS14185WM/NOPB

DS14185WM/NOPB Summary of contents

Page 1

... Connection Diagram SOIC Order Number DS14185WM See NS Package M20B LapLink ® registered trademark of Travelling Software. © 2004 National Semiconductor Corporation n Flow through pinout n Failsafe receiver outputs n 20-pin SOIC package n LapLink ® compatible −200 kbps data rate Functional Diagram ...

Page 2

... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage ( Supply Voltage (V ) − Supply Voltage (V ) Driver Input Voltage Driver Output Voltage (Power Off) Receiver Input Voltage Receiver Output Voltage ...

Page 3

Electrical Characteristics Over recommended supply voltage and operating temperature ranges, unless otherwise specified. Symbol Parameter DRIVER CHARACTERISTICS R Output Resistance O RECEIVER CHARACTERISTICS V Input High Threshold TH (Recognized as a High Signal) V Input Low Threshold TL (Recognized as ...

Page 4

Parameter Measurement Information FIGURE 1. Driver Propagation Delay and Transition Time Test Circuit (Note 5) FIGURE 2. Driver Propagation Delay and Transition Time Waveforms Slew Rate (SR) = 6V/(t FIGURE 3. Receiver Propagation Delay and Transition Time Test Circuit (Note ...

Page 5

Pin Descriptions Pin # 13, 15 12, 14, 17, 18 Applications Information In a typical Data Terminal Equipment (DTE) to Data Circuit- Terminating Equipment (DCE) 9-pin ...

Page 6

Typical Performance Characteristics The above input waveforms were used to generate all Typical AC Characteristics. Driver Output Slew Rate between +3V and −3V vs Load Capacitance Conditions 5V kΩ ...

Page 7

Typical Performance Characteristics Supply Current vs Frequency (Continued) Driver Output Current vs Output Voltage 01193818 7 01193819 www.national.com ...

Page 8

... BANNED SUBSTANCE COMPLIANCE National Semiconductor certifies that the products and packing materials meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

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