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This user's guide describes the characteristics, setup and use of the TCA7408EVM/TCA5405EVM
Evaluation Module (EVM). This user's guide includes set-up instructions, a schematic diagram, a bill of
materials, printed-circuit board layout drawings, software instructions, and operation instructions.
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Introduction
The TCA7408-5405EVM is designed to show the used of multiple TI products on a single evaluation
board. It shows how the single-wire 5-bit output expander TCA5405 is used to generate LED blinking
functions. The Single wire interface is implemented using a single GPIO port on the MSP430, and very
simple firmware embedded in the device. The TCA7408 GPIO expander is used to an input handler, that
detects Key presses and notifies the MSP430. The EVM also has the TPL0401 that is used for RGB color
mixing in conjunction with the TLC59108.
SCPU034 - December 2011
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Copyright © 2011, Texas Instruments Incorporated
TCA7408EVM,TCA5405EVM
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User's Guide
SCPU034 - December 2011
TCA7408EVM,TCA5405EVM
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Summary of Contents for Texas Instruments TCA5405EVM
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Page 1: Table Of Contents
SCPU034 – December 2011 TCA7408EVM,TCA5405EVM This user’s guide describes the characteristics, setup and use of the TCA7408EVM/TCA5405EVM Evaluation Module (EVM). This user’s guide includes set-up instructions, a schematic diagram, a bill of materials, printed-circuit board layout drawings, software instructions, and operation instructions. -
Page 2: Features
A LaunchPad can be acquired here (https://estore.ti.com/MSP-EXP430G2-MSP430-LaunchPad-Value-Line-Development-kit-P2031.aspx) NOTE: IMPORTANT: The code to control the TCA7408EVM/TCA5405EVM was written from an MSP430G2553 and will not work with the MSP430 chips that are included with the LaunchPad kit. -
Page 3: Setup
Control jumper to short feedback loop Jumper to control LED or Op-Amp Jumper to control input to Op-Amp SMA/B Footprint for external input Test points for DIN, SDA and SCL SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 4: Hardware Setup
Within the source code for the MSP430 there are two different methods to handle sending data to the TCA5405. This section will explain how the TCA5405 functions and how the MSP430G2xx3 code works. Figure 1. Data Flow for TCA5405 SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... - Page 5 NEXT_BIT_TIME, 5405_Timer_ISR() is called and adjusts the output of the P2.0 accordingly. NOTE: The start flag S0-S3 is hard coded into each of these methods SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated...
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Page 6: Schematics, Layout, And Bill Of Materials
Schematics, Layout, and Bill of Materials www.ti.com Schematics, Layout, and Bill of Materials Schematics Figure 2. TCA5405, TCA7408 Schematic SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 7: Tlc59108 Schematic
Schematics, Layout, and Bill of Materials www.ti.com Figure 3. TLC59108 Schematic SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 8: Tpl0401 Schematic
Schematics, Layout, and Bill of Materials www.ti.com Figure 4. TPL0401 Schematic SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 9: Layout
Schematics, Layout, and Bill of Materials www.ti.com Layout Figure 5. Routing, Assembly and Silkscreen Top SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 10: Layer 2 Power Plane
Schematics, Layout, and Bill of Materials www.ti.com Figure 6. Layer 2 Power Plane SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 11: Layer 3 Ground Plane
Schematics, Layout, and Bill of Materials www.ti.com Figure 7. Layer 3 Ground Plane SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 12: Routing And Assembly Bottom
Schematics, Layout, and Bill of Materials www.ti.com Figure 8. Routing and Assembly Bottom SCPU034 – December 2011 TCA7408EVM,TCA5405EVM Submit Documentation Feedback Copyright © 2011, Texas Instruments Incorporated... -
Page 13: Bill Of Materials
Schematics, Layout, and Bill of Materials www.ti.com Bill of Materials Table 2. TCA7408EVM/TCA5405EVM Bill of Material RefDes Value Description Part Number Notes C1-4 0.1µ Capacitor, Ceramic 10µ Capacitor, Ceramic Capacitor, Ceramic Connector, SMA , Straight, PC 901-144-8RFX mount D1-5 SML-P12PTT86 Diode, LED, GREEN 2.2V... - Page 14 Any exceptions to this are strictly prohibited and unauthorized by Texas Instruments unless user has obtained appropriate experimental/development licenses from local regulatory authorities, which is responsibility of user including its acceptable authorization.
- Page 15 FCC Interference Statement for Class B EVM devices This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
- Page 16 Also, please do not transfer this product, unless you give the same notice above to the transferee. Please note that if you could not follow the instructions above, you will be subject to penalties of Radio Law of Japan. Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan http://www.tij.co.jp...
- Page 17 FDA Class III or similar classification, then you must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2012, Texas Instruments Incorporated...
- Page 18 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue.
- Page 19 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Texas Instruments TCA7408-5405EVM...
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