NM232DDC Murata Power Solutions Inc, NM232DDC Datasheet

NM232DDC

Manufacturer Part Number

NM232DDC

Description

ISOLATED INTERFACE DL EIA-232-D

Manufacturer

Murata Power Solutions Inc

Type

Transceiverr

Datasheet

1.NM232DDC.pdf (5 pages)

Specifications of NM232DDC

Package / Case

24-DIP (0.667", 16.95mm)

Number Of Drivers/receivers

2/2

Protocol

RS232

Voltage - Supply

4.5 V ~ 5.5 V

Mounting Type

Through Hole

Data Rate

9.6Kbps

Supply Voltage Range

4.5V To 5.5V

Logic Case Style

DIP

No. Of Pins

Operating Temperature Range

0Â°C To +70Â°C

Svhc

No SVHC (18-Jun-2010)

Base

RoHS Compliant

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Other names

811-1444-5

Available stocks

Company

Part Number

Manufacturer

Quantity

Price

Company:

Bonase Electronics (HK) Co., Limited

Part Number:

NM232DDC

Manufacturer:

YEONHO

Quantity:

2 300

Company:

Meier Automation Equipment Co., Limited

Part Number:

NM232DDC

Manufacturer:

MURATA

Quantity:

20 000

Current page: 1 of 5
Download datasheet (165Kb)

FEATURES

DESCRIPTION

The NM232DDC is an electrically isolated dual

transmitter and receiver designed to inter-

face data terminal equipment (DTE) with data

communications equipment (DCE). The device

provides two data receive channels and two data

transmit channels. Each channel is EIA-232-D,

EIA-232-E and CCITT V.28 compatible at the

interface boundary and TTL/CMOS compatible at

the logic connections. No external components

are needed and a single 5V input supply powers

all functions either side of the isolation boundary.

A low-power shutdown mode and high impedance

state for receiver outputs is effected via two pins,

SHUTDOWN and ENABLE. The device is supplied

in a low proﬁle 24 pin DIL package.

www.murata-ps.com

RoHS compliant

Single 5V supply

50μW low power shutdown

TTL/CMOS Logic compatible

EIA-232-D/E and CCITT V.28 compatible

Dual transmitters and receivers

1.5kVrms Isolation

www.murata-ps.com/rohs

For full details go to

1. Calulated using MIL-HDBK-217F.

All data taken at T

ELECTRICAL CHARACTERISTICS

Parameter

High threshold input logic, V

Low threshold input logic, V

Input Hysteresis, ΔV

Leakage Current, I

Input capacitance, C

Low level output voltage, V

High level output voltage, V

Input pull up current

±V

ELECTRICAL CHARACTERISTICS - EIA-232-D

Parameter

Positive going threshold, V

Negative going threshold, V

Input Hysteresis, ΔV

Input resistance

Output voltage, V

Output leakage current, I

Output slew rate, S

Propagation delay, T

Transmission rate

Supply voltage, V

Supply current, I

Shutdown current I

ENABLE input current, I

Shutdown input current, I

MTTF

TEMPERATURE CHARACTERISTICS

Parameter

Operating free-air temperature range

Storage temperature range

ABSOLUTE MAXIMUM RATINGS

Supply voltage V

Input voltage to logic pins 3, 7, 8, & 11 with respect to

pin 10

Voltages with respect to ISO GND pin 22

Short circuit on pins 19 & 20

Power dissipation

NM232DDC maximum data rate

Lead case temperature 1.5mm from case for 10 seconds

ISOLATION CHARACTERISTICS

Parameter

Isolation test voltage

REF

Current

=25°C, V

with respect to pin 10

=5V.

SHUTDOWN

T+

T-

Isolated Dual EIA-232-D Transmitter and Receiver

Test conditions

SHUTDOWN=V

Logic to RS232

RS232 to logic

SHUTDOWN=1

ENABLE=OV to V

SHUTDOWN=OV to V

Conditions

Flash tested for 1 second

OUT

=3kΩ, C

=3kΩ, CL=2500pF

OUT

= OV

, SHUTDOWN, ENABLE

= 3.2mA

= -1.0mA

=0.8V, TX

=3.0V, RX

, SHUTDOWN or ENABLE = V

, R

= 3kΩ, RX

=3kΩ to ISO GND

Technical enquiries - email: mk@murata-ps.com, tel:

=2500pF

OUT

=3kΩ,

OUT

=2.2kΩ

, TX

= 2.2kΩ

OUT

EIA-232-D input voltage, pins 17 & 18

EIA-232-D input voltage, pins 19 & 20

Positive input voltage, pins 16 & 21

Negative input voltage, pin 23

=±15V

Min..

1500

±5.0

187

-10

-55

0.8

2.4

0.6

3.0

4.5

KII_NM232DDC.A02 Page 1 of 5

NM232DDC

±7.0

Typ.

1.8

1.3

0.5

5.0

4.0

1.8

1.2

0.6

3.0

1.0

+44 (0)1908 615232

Max.

125

2.4

0.4

3.0

7.0

9.6

5.5

1.0

-30V to +30V

-15V to +15V

-0.3V to +6V

Indeﬁnite

-0.3V to

9.6kbps

700mW

300ºC

+14V

-14V

+0.3V

Units

Vrms

kbps

kHrs

V/μs

kΩ

μA

μs

ºC

Related parts for NM232DDC

NM232DDC Summary of contents

Page 1

... EIA-232-D/E and CCITT V.28 compatible Dual transmitters and receivers 1.5kVrms Isolation DESCRIPTION The NM232DDC is an electrically isolated dual transmitter and receiver designed to inter- face data terminal equipment (DTE) with data communications equipment (DCE). The device provides two data receive channels and two data transmit channels ...

Page 2

... Where to use the NM232DDC The function of the NM232DDC is to provide an isolated signal path between a UART or similar device and the EIA-232-D interface ‘D’ connector, providing two receivers and two transmitters which can be used in a number of handshake modes ...

Page 3

... POWER UP TO TRANSMITTER OUTPUT DELAY TRANSMITTER SLEW RATE VS LOAD CAPACITANCE ENABLE & DISABLE TIMES VS TEMPERATURE www.murata-ps.com Isolated Dual EIA-232-D Transmitter and Receiver SHUTDOWN TO POWER UP DELAY TRANSMITTER SLEW RATE VS TEMPERATURE PROPAGATION DELAY VS TEMPERATURE Technical enquiries - email: mk@murata-ps.com, tel: NM232DDC +44 (0)1908 615232 KII_NM232DDC.A02 Page ...

Page 4

... Isolated Dual EIA-232-D Transmitter and Receiver 0.012 (0.30) 0.008 (0.20) 0.6673 (16.95) MAX RECOMMENDED FOOTPRINT All dimensions are in inches (mm) ±0.01 (0.25) , low-normal operation OUT TUBE OUTLINE DIMENSIONS All dimensions are in inches (mm) ±0.01 (0.25) Technical enquiries - email: mk@murata-ps.com, tel: NM232DDC Tube Quantity : 15 +44 (0)1908 615232 KII_NM232DDC.A02 Page ...

Page 5

... A question commonly asked is, “What is the continuous voltage that can be applied across the part in normal operation?” For a part holding no speciﬁc agency approvals, such as the NM232DDC series, both input and output should normally be maintained within SELV limits i.e. less than 42.4V peak, or 60VDC. The isolation test voltage represents a measure of immunity to transient voltages and the part should never be used as an element of a safety isolation system. The part could be expected to function correctly with several hundred volts offset applied continuously across the isolation barrier ...

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