LTC1544 - Software-Selectable Multiprotocol Transceiver
Features
- Software-Selectable Transceiver Supports:
RS232, RS449, EIA530, EIA530-A, V.35, V.36, X.21 - TUV/Detecon Inc. Certified NET1 and NET2
Compliant (Test Report No. NET2/102201/97) - TBR2 Compliant (Test Report No. CTR2/022701/98)
- Software-Selectable Cable Termination Using
the LTC1344A - Complete DTE or DCE Port with LTC1543, LTC1344A
or LTC1546 with Integrated Termination - Operates from Single 5V Supply with LTC1543
Typical Application
Description
The LTC®1544 is a 4-driver/4-receiver multiprotocol transceiver. The LTC1544 and LTC1543 form the core of a complete software-selectable DTE or DCE interface port that supports the RS232, RS449, EIA530, EIA530-A, V.35, V.36 or X.21 protocols. Cable termination for the LTC1543 may be implemented using the LTC1344A software-selectable cable termination chip or by using existing discrete designs. The LTC1546 includes software-selectable cable termination on-chip. The LTC1544 runs from a 5V supply and the charge pump on the LTC1543 or LTC1546. The part is available in a 28-lead SSOP surface mount package.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 |
|---|---|---|---|---|---|
| LTC1544CG#PBF | SSOP-28 | G | C | 05-08-1640 (G28) | Yes |
| LTC1544CG#TRPBF | SSOP-28 | G | C | 05-08-1640 (G28) | Yes |
| LTC1544IG#PBF | SSOP-28 | G | I | 05-08-1640 (G28) | Yes |
| LTC1544IG#TRPBF | SSOP-28 | G | I | 05-08-1640 (G28) | 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 | |
|---|---|---|---|---|---|---|
| LTC1544CG#PBF | SSOP-28 | C | $7.00 | $5.75 | Yes | |
| LTC1544CG#TRPBF | SSOP-28 | C | $5.83 | Yes | ||
| LTC1544IG#PBF | SSOP-28 | I | $8.20 | $6.90 | Yes | |
| LTC1544IG#TRPBF | SSOP-28 | I | $6.98 | 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.| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC196A-A | LTC1543CG LTC1544CG LTC1344A | Software-Selectable Multiprotocol Transceiver | $50.00 | |
| DC196A-B | LTC1546CG LTC1544CG | Software-Selectable Multiprotocol Transceiver | $50.00 | |
| Buy Now | |||
Applications
- Data Networking
- CSU and DSU
- Data Routers
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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:
- LTspice - A powerful SPICE simulator, schematic capture and waveform viewer with enhancements and models for easing the simulation of switching regulators
- LTpowerCAD - A complete power supply selection, synthesis and design tool
- LTpowerPlay - A development environment supporting Linear Technology's Digital Power System Management (PSM) products
- PScope & QuikEval - USB-based product demonstration and data acquisition system for use with our ADCs, DACs, and more
- Linduino - Arduino compatible system for developing and distributing firmware libraries and example code
- LinearLab Tools - A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards
- And More!
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.
