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Texas Instruments TCA6408ARSVR
TCA6408ARSVR Supplier & Distributor
TCA6408ARSVR is an electronic component from Texas Instruments. TomatoElec is an in-stock independent distributor supporting original component sourcing, inventory checks and BOM purchasing needs.
We support RFQ handling, component availability confirmation and sourcing coordination for OEM, EMS, repair and electronic trading companies.
- Original component sourcing support
- In-stock inventory checking
- RFQ and availability confirmation
- BOM sourcing and bulk order support
- Part No.:
- TCA6408ARSVR
- Manufacturer:
- Texas Instruments
- Category:
- I/O Expanders
- Package:
- 16-UFQFN
- Datasheet:
-
TCA6408ARSVR.pdf
- Description:
- IC XPNDR 400KHZ I2C SMBUS 16UQFN
- Quantity:
Unit Price:$0
Ext Price:$0
- Payment:
- Shipping:
Inventory:19
Send us your inquiry,we will respond immediately.
About TCA6408ARSVR
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Contact us now for quotation and availability of TCA6408ARSVR.
Product Details
TCA6408ARSVR – Texas Instruments 8-Bit Translating I2C / SMBus I/O Expander
TCA6408ARSVR is a Texas Instruments 8-bit I2C and SMBus I/O expander designed to add general-purpose digital input and output ports to microcontrollers, processors and embedded systems. With 8 GPIO ports, 1.65V to 5.5V supply operation, bidirectional voltage-level translation, 400kHz Fast-mode I2C support, interrupt output, reset input and UQFN-16 / RSV package, it is suitable for space-constrained control boards, sensor modules, button interfaces, LED control, fan control, industrial panels and consumer electronics.
Engineering note: Confirm I2C address, pull-up resistor values, VCCI/VCCP levels, interrupt handling, reset timing, GPIO direction settings and the latest Texas Instruments datasheet before production approval.
Component Overview
TCA6408ARSVR belongs to the Texas Instruments TCA6408A family of low-voltage 8-bit I2C and SMBus I/O expanders. It provides additional GPIO resources through a two-wire serial interface and allows the I2C bus side and the P-port side to operate at different supply levels. This makes it useful when a host processor has limited pins or when different logic-voltage domains must be connected through a compact GPIO expander.
Circuit Function & Design Role
Adds 8 general-purpose input/output ports through a two-wire I2C or SMBus interface.
Supports different VCCI and VCCP supply levels for mixed-voltage microcontroller and peripheral designs.
Provides an open-drain interrupt output to notify the host when input-port status changes.
UQFN-16 package helps reduce PCB area in portable, embedded and high-density control boards.
Key Electrical & Package Information
| Manufacturer | Texas Instruments |
|---|---|
| Part Number | TCA6408ARSVR |
| Series | TCA6408A Series |
| Device Type | 8-bit I2C / SMBus I/O expander |
| Number of I/O Ports | 8 |
| Interface | I2C / SMBus |
| Maximum I2C Frequency | 400kHz Fast-mode |
| Supply Voltage Range | 1.65V to 5.5V on VCCI and VCCP |
| Voltage Translation | Bidirectional voltage-level translation between bus and P-ports |
| Interrupt Output | Open-drain active-low INT output |
| Reset Input | Active-low RESET input |
| Address Options | Hardware address pin allows two devices on the same bus |
| Standby Current | 1µA low standby current reference value |
| I/O Tolerance | 5V-tolerant I/O ports |
| Registers | Input, output, configuration and polarity inversion registers |
| Power-On Behavior | Power up with all channels configured as inputs |
| Package / Case | UQFN-16 / RSV, 2.6mm × 1.8mm |
| Mounting Type | Surface Mount / SMD |
| Operating Temperature | -40°C to +85°C |
| Packaging | Large tape and reel |
| Package Quantity | 3,000 pcs |
| Product Status | Active |
Application Scenarios
Embedded Control Boards
Used to add GPIO ports for MCUs, processors, sensors, switches, LEDs and control signals.
Consumer Electronics
Suitable for button scanning, LED control, fan control and compact user-interface circuits.
Industrial & Automation Modules
Applicable to control panels, monitoring modules, sensor hubs and mixed-voltage I/O expansion boards.
Portable & Space-Limited Designs
Useful where a BOM requires an 8-bit I2C GPIO expander in a small UQFN-16 package.
TomatoElec Quality & Supply Notes
As an in-stock independent distributor and electronic components supplier, TomatoElec supports TCA6408ARSVR sourcing for engineering samples, production replenishment, urgent replacement and BOM purchasing. For interface ICs, correct manufacturer, package code, reel suffix, date code, moisture handling and original sourcing are important because the device affects bus communication, GPIO behavior and long-term system reliability.
- Original component sourcing: support sourcing of original Texas Instruments interface and GPIO expander products.
- Inventory support: help confirm available stock, package condition, date code and shipment schedule.
- Package verification: confirm RSV / UQFN-16 package and tape-and-reel ordering information before shipment.
- BOM matching: verify I/O count, supply voltage range, I2C frequency, address option, package and temperature range before approving any substitute.
Replacement & BOM Matching Guidance
TCA6408ARSVR should not be replaced only by matching "8-bit I2C I/O expander." Engineers should compare pinout, package size, I2C address, VCCI/VCCP range, reset behavior, interrupt behavior, power-on default state, register map and software compatibility.
FAQ
What is TCA6408ARSVR used for?
Does TCA6408ARSVR support voltage-level translation?
What package is TCA6408ARSVR?
Can TomatoElec support TCA6408ARSVR sourcing?
Final Selection Summary
TCA6408ARSVR is a Texas Instruments 8-bit translating I2C / SMBus I/O expander in UQFN-16 package for GPIO expansion, mixed-voltage interface support, interrupt-based input monitoring and compact embedded control designs.
TCA6408ARSVR Specifications
- Specifications
- FAQ
- The Posts
- Attributes
- Property Value
- Manufacturer
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-UFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Number of I/O:
- 8
- Interface:
- I2C, SMBus
- Interrupt Output:
- Yes
- Features:
- POR
- Output Type:
- Push-Pull
- Current - Output Source/Sink:
- 10mA, 25mA
- Clock Frequency:
- 400 kHz
- Voltage - Supply:
- 1.65V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-UQFN (2.6x1.8)
- Category:
- I/O Expanders
1. How to order TCA6408ARSVR from Hong Kong Tomato Electronics Co., Limited?
You can submit an RFQ for TCA6408ARSVR directly on our website. After receiving your request, our sales team will contact you with price, availability, lead time and order details. Once you confirm the quotation, we will help you complete the order process.
2. How does Hong Kong Tomato Electronics Co., Limited ensure that TCA6408ARSVR is original and reliable?
Hong Kong Tomato Electronics Co., Limited works with qualified supply channels and applies strict quality control procedures for electronic components including TCA6408ARSVR. We pay close attention to supplier screening, product verification and delivery quality to help customers source with confidence.
3. Are the price and inventory of TCA6408ARSVR accurate?
The price and inventory of TCA6408ARSVR may change due to market conditions and stock movement. We update information as frequently as possible, but final quotation and availability should be confirmed by our sales team. In most cases, quotations are valid for 3 to 5 days.
4. What payment methods are accepted?
We usually accept Wire Transfer, PayPal, Alipay, WeChat Pay, Credit Card, Western Union and other agreed payment methods, depending on the order and customer location.
Please note that some payment methods may involve additional handling charges.
5. How is the shipping arranged?
Customers can choose major international carriers such as DHL, UPS, FedEx and other available shipping methods. Shipping options depend on package size, destination and delivery urgency.
After shipment, our team will send you the shipping status and tracking number by email.
Please note that tracking information may take some time to become active after dispatch.
6. What is the return or replacement policy for TCA6408ARSVR?
All shipments are checked before dispatch. If there is a confirmed issue related to the delivered TCA6408ARSVR, such as incorrect quantity, wrong item or verified product problem, please contact us as soon as possible.
Return or replacement requests are usually accepted only when the part remains unused and in its original packaging, and when the issue is reported within the agreed time after delivery.
Please contact our team first before returning any goods so that we can confirm the issue and provide return instructions.
7. How can I get technical support, such as the datasheet or specifications for TCA6408ARSVR?
If you need technical support for TCA6408ARSVR, including datasheets, specifications or general product information, please contact our sales team. We will do our best to help you obtain the relevant information.
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- Comparison
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| Images |  |
| Part No. | TCA6408ARSVR |
| Manufacturer | Texas Instruments |
| Series | - |
| Package/Case | 16-UFQFN |
| Packaging | Tape & Reel (TR) |
| Product Status | Active |
| Programmable | Not Verified |
| Number of I/O | 8 |
| Interface | I2C, SMBus |
| Interrupt Output | Yes |
| Features | POR |
| Output Type | Push-Pull |
| Current - Output Source/Sink | 10mA, 25mA |
| Clock Frequency | 400 kHz |
| Voltage - Supply | 1.65V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Supplier Device Package | 16-UQFN (2.6x1.8) |
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