LT1039 - RS232 Driver/Receiver with Shutdown
Features
- Operates from ±5V to ±15V Supplies
- Fully Protected Against Overload
- Outputs can be Driven ±30V without Damage
- Three-State Outputs; Outputs Open when Off
- Bipolar Circuit-No Latch Up
- ±30V Input Range
- Triple Driver/Receiver
- No Supply Current in Shutdown
- 30k ohms Input Impedance
- Meets All RS232 Specifications
- 16 Pin Version-Pin Compatible with MC145406
- Available in SO Package
- 15kV ESD: LT1039A
Typical Application
Description
The LT™1039 is a triple RS232 driver/receiver that includes shutdown. Each receiver will accept up to ±30V input and can drive either TTL or CMOS logic. The RS232 drivers accept TTL logic inputs and output RS232 voltage levels. The outputs are fully protected against overload and can be shorted to ground or up to ±30V without damage to the drivers. Additionally, when the system is shut down or power is off, the outputs are in a high impedance state allowing data line sharing. Bipolar circuitry makes this driver/receiver exceptionally rugged against overloads and immune to latchup.
A BIAS pin allows one receiver to be kept on while the rest of the part is shut down.
The LT1039 is also available in the 16-pin version, without shutdown or BIAS pin functions.
For applications requiring operation from a single 5V supply, see the LT1080/LT1081, LT1180A/LT1181A and LT1130A data sheets. For applications requiring 15kV ESD, see the LT1039A.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LT1039CN#PBF | N-18 | N | C | 05-08-1510 (N18) | Yes |
| LT1039CN16#PBF | N-16 | N | C | 05-08-1510 (N16) | Yes |
| LT1039CSW#PBF | SW-18 | SW | C | 05-08-1620 (SW18) | Yes |
| LT1039CSW#TRPBF | SW-18 | SW | C | 05-08-1620 (SW18) | Yes |
| LT1039CSW16#PBF | SW-16 | SW | C | 05-08-1620 (SW16) | Yes |
| LT1039IN#PBF | N-18 | N | I | 05-08-1510 (N18) | Yes |
| LT1039ISW#PBF | SW-18 | SW | I | 05-08-1620 (SW18) | Yes |
| LT1039ISW#TRPBF | SW-18 | SW | I | 05-08-1620 (SW18) | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LT1039CN#PBF | N-18 | C | $2.92 | $2.35 | Yes | |
| LT1039CN16#PBF | N-16 | C | $2.75 | $2.00 | Yes | |
| LT1039CSW#PBF | SW-18 | C | $3.50 | $2.85 | Yes | |
| LT1039CSW#TRPBF | SW-18 | C | $2.95 | Yes | ||
| LT1039CSW16#PBF | SW-16 | C | $3.50 | $2.85 | Yes | |
| LT1039IN#PBF | N-18 | I | $3.92 | $3.20 | Yes | |
| LT1039ISW#PBF | SW-18 | I | $4.42 | $3.60 | Yes | |
| LT1039ISW#TRPBF | SW-18 | I | $3.70 | Yes | ||
| Buy Now • Request Samples | ||||||
Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.Click here to view our complete list of demo boards
Applications
- RS232 Interface
- Terminals
- Modems
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Design Tools
Linear Technology provides a variety of custom design simulation tools and device models to allow even novice designers to quickly and easily evaluate circuits using high performance switching regulators, amplifiers, data converters, filters and more. Please visit our Design Tools page to view and download:
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- Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
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Technical Support
- For immediate technical assistance, contact your local sales office or distributor or call 1-800-4-LINEAR (US customers only) or 408-432-1900.
- For less urgent requests, please complete our Technical Support Request Form. Please allow 2-3 business days for reply.
