DS14C238WM National Semiconductor, DS14C238WM Datasheet

DS14C238WM

Manufacturer Part Number
DS14C238WM
Description
Manufacturer
National Semiconductor
Datasheet

Specifications of DS14C238WM

Data Rate
120Kbps
Interface Circuit Standard 1
EIA/TIA-232-E/V.28
Number Of Receivers
4
Number Of Transmitters
4
Number Of Transceivers
1
Data Transmission Topology
Point-to-Point
Receiver Signal Type
Single-Ended
Transmitter Signal Type
Single-Ended
Single Supply Voltage (typ)
5V
Single Supply Voltage (min)
4.5V
Single Supply Voltage (max)
5.5V
Dual Supply Voltage (typ)
Not RequiredV
Dual Supply Voltage (min)
Not RequiredV
Dual Supply Voltage (max)
Not RequiredV
Supply Current
10mA
Power Supply Requirement
Single
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
24
Package Type
SOIC W
Lead Free Status / Rohs Status
Not Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DS14C238WM
Manufacturer:
NS
Quantity:
169
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DS14C238WM
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
DS14C238WMX
Manufacturer:
MAXIM
Quantity:
1 995
Part Number:
DS14C238WMX
Manufacturer:
NS
Quantity:
2 882
Part Number:
DS14C238WMX
Manufacturer:
NS/国半
Quantity:
20 000
Part Number:
DS14C238WMX/NOPB
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NS
Quantity:
7 804
© 2002 National Semiconductor Corporation
DS14C238
Single Supply TIA/EIA-232 4 x 4 Driver/Receiver
General Description
The DS14C238 is a four driver, four receiver device which
conforms to the TIA/EIA-232-E standard and CCITT V.28
recommendations. This device eliminates
employing an internal DC-DC converter to generate the nec-
essary output levels from a single +5V supply. Driver slew
rate control and receiver noise filtering have also been inter-
nalized to eliminate the need for external slew rate control
and noise filtering capacitors.
Connection Diagram
Order Number DS14C238WM, DS14C238WMX
See NS Package Number M24B
DS011282
01128201
±
12V supplies by
Features
n Conforms to TIA/EIA-232-E and CCITT V.28
n Internal DC-DC converter
n Operates with single +5V supply
n Low power requirement — I
n Internal driver slew rate control
n Receiver noise filtering
n Operates above 120 kbits/sec
n Direct replacement for MAX238
Functional Diagram
CC
10 mA max
www.national.com
01128202
July 2002

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DS14C238WM Summary of contents

Page 1

... Connection Diagram Order Number DS14C238WM, DS14C238WMX See NS Package Number M24B © 2002 National Semiconductor Corporation Features n Conforms to TIA/EIA-232-E and CCITT V.28 n Internal DC-DC converter ± ...

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 ( Pin V− Pin Driver Input Voltage Driver Output Voltage Receiver Input Voltage Receiver Output Voltage Junction Temperature Maximum Package Power Dissipation ...

Page 3

Switching Characteristics Over recommended operating conditions, unless otherwise specified. Symbol Parameter DRIVER CHARACTERISTICS t Propagation Delay LOW to HIGH PLH t Propagation Delay HIGH to LOW PHL t Skew |t – PLH PHL SR1 Output Slew Rate SR2 ...

Page 4

Parameter Measurement Information FIGURE 4. Receiver Propagation Delays and Noise Rejection Pin Descriptions V (pin 9) — Power supply pin for the device, CC ± +5V ( 10%). V+ (pin 11) — Positive supply for TIA/EIA-232-E drivers. Recommended external capacitor: ...

Page 5

... 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) unless otherwise noted Order Number DS14C238WM, DS14C238WMX NS Package Number M24B 2 ...

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