DS14185WM National Semiconductor, DS14185WM Datasheet

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DS14185WM

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

Specifications of DS14185WM

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
Contains lead / RoHS non-compliant
Other names
*DS14185WM

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© 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

DS14185WM Summary of contents

Page 1

... Features n Replaces one 1488 and two 1489s n Conforms to EIA/TIA-232 drivers and 5 receivers 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 ...

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

... National does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications. inches (millimeters) Small Outline Package Order Number DS14185WM NS Package M20B 2. A critical component is any component of a life ...

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