LMS202ECM/NOPB National Semiconductor, LMS202ECM/NOPB Datasheet - Page 2

• Manufacturer Part Number: LMS202ECM/NOPB
• Description: TXRX DUAL 5V TIA/EIA-232 16-SOIC
• Manufacturer: National Semiconductor
• Type: Transceiverr

Specifications of LMS202ECM/NOPB

• Number Of Drivers/receivers: 2/2
• Protocol: RS232
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LMS202ECM

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Pin Number
1, 3
2
4, 5
6
7, 14
8,13
9, 12
10, 11
15
16
Pin Descriptions
Ordering Information
16-Pin Wide SOIC
16-Pin SOIC
Package
Pin Name
C1+, C1−
V+
C2+, C2−
V−
T1out, T2out
R1in, R2in
R1out and R2out Receiver output pins are TTL/CMOS compatible
Tin1, Tin2
GND
V
S
LMS202CMWX
LMS202IMWX
LMS202CMW
LMS202CMX
Part Number
LMS202IMW
LMS202IMX
LMS202CM
LMS202IM
Pin Function
External capacitor connection pins. Recommended external capacitor C1 = 0.1μF (6.3V)
Positive supply for TIA/EIA-232E drivers. Recommended external capacitor C4 = 0.1μF (6.3V)
External capacitor connection pins. Recommended external capacitor C2 = 0.1μF (16V)
Negative supply for TIA/EIA-232E drivers. Recommended external capacitor C3 = 0.1μF (16V)
Transmitter output pins conform to TIA/EIA-232E levels. The typical transmitter output swing is ±8V
when loaded 3kΩ load to ground. The open-circuit output voltage swings from (V+ − 0.6V) to V−
Receiver inputs accept TIA/EIA-232
Transmitter input pins are TTL/CMOS compatible. Inputs of transmitter do not have pull-up
resistors. Connect all unused transmitter inputs to ground
Ground pin
Power supply pin for the device, +5V (±10%)
200629 Version 5 Revision 2
Package Marking
LMS202CMW
LMS202IMW
LMS202CM
LMS202IM
Print Date/Time: 2010/07/12 17:35:02
2
2.5k Units Tape and Reel
2.5k Units Tape and Reel
1.0k Units Tape and Reel
1.0k Units Tape and Reel
Transport Media
48 Units/Rail
48 Units/Rail
45 Units/Rail
45 Units/Rail
NSC Drawing
M16A
M16B