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18-bit 1.65- to 3.6-V 1MHz I2C/SMBus keypad scanner with interrupt, reset & 80 key support 24-WQFN -40 to 85
Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.
TCA8418RTWR by Texas Instruments is an Other Telecom IC.
Other Telecom ICs are under the broader part category of Telecommunication Circuits.
A telecommunications circuit transmits and receives information between points. Key components include transmitters, receivers, amplifiers, and multiplexers. Read more about Telecommunication Circuits on our Telecommunication Circuits part category page.
Part # | Manufacturer | Description | Datasheet |
---|---|---|---|
TCA8418RTWR | Texas Instruments | I2C Controlled Keypad Scan IC With Integrated ESD Protection 24-WQFN -40 to 85 |
Part # | Distributor | Description | Stock | Price | Buy | |
---|---|---|---|---|---|---|
DISTI #
3009542
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Farnell | INTERFACE, I2C, 3.6V, QFN-24 RoHS: Compliant Min Qty: 1 Lead time: 53 Weeks, 2 Days Container: Cut Tape | 616 |
|
$0.7911 / $1.6459 | Buy Now |
DISTI #
3009542RL
|
Farnell | INTERFACE, I2C, 3.6V, QFN-24 RoHS: Compliant Min Qty: 100 Lead time: 53 Weeks, 2 Days Container: Reel | 616 |
|
$0.7911 / $1.1879 | Buy Now |
DISTI #
296-25223-1-ND
|
DigiKey | IC INTERFACE SPECIALIZED 24WQFN Min Qty: 1 Lead time: 6 Weeks Container: Cut Tape (CT), Digi-Reel®, Tape & Reel (TR) |
3275 In Stock |
|
$0.6941 / $1.4700 | Buy Now |
DISTI #
595-TCA8418RTWR
|
Mouser Electronics | Interface - Specialized Low-Vltg 16B I2C & S MBus I/O Expander RoHS: Compliant | 4722 |
|
$0.6810 / $1.3100 | Buy Now |
DISTI #
V72:2272_07367432
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Arrow Electronics | I2C Controlled Keypad Scan IC 24-Pin WQFN EP T/R RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 6 Weeks Date Code: 2228 Container: Cut Strips | Americas - 4 |
|
$0.6659 | Buy Now |
|
Bristol Electronics | 9 |
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RFQ | ||
DISTI #
TCA8418RTWR
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TME | IC: interface, I/O expander, 1.65÷3.6VDC, I2C,SMBus, SMD, WQFN24 Min Qty: 1 | 0 |
|
$0.7600 / $1.5100 | RFQ |
DISTI #
SMC-TCA8418RTWR
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Sensible Micro Corporation | AS6081 Certified Vendor, 1 Yr Warranty RoHS: Not Compliant Min Qty: 25 Lead time: 2 Weeks, 0 Days | 262 |
|
RFQ | |
|
Cytech Systems Limited | IC INTERFACE SPECIALIZED 24WQFN | 15000 |
|
RFQ | |
|
Greenchips | Date Code: 1952/CN | 489 |
|
$0.4130 / $0.5140 | Buy Now |
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TCA8418RTWR
Texas Instruments
Buy Now
Datasheet
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Compare Parts:
TCA8418RTWR
Texas Instruments
18-bit 1.65- to 3.6-V 1MHz I2C/SMBus keypad scanner with interrupt, reset & 80 key support 24-WQFN -40 to 85
|
Pbfree Code | Yes | |
Rohs Code | Yes | |
Part Life Cycle Code | Active | |
Ihs Manufacturer | TEXAS INSTRUMENTS INC | |
Part Package Code | QFN | |
Package Description | QFN-24 | |
Pin Count | 24 | |
Reach Compliance Code | compliant | |
ECCN Code | EAR99 | |
HTS Code | 8542.39.00.01 | |
Samacsys Manufacturer | Texas Instruments | |
JESD-609 Code | e4 | |
Moisture Sensitivity Level | 2 | |
Peak Reflow Temperature (Cel) | 260 | |
Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | |
Time@Peak Reflow Temperature-Max (s) | 30 |
Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the traces as short as possible. It's also recommended to use a common mode filter and to decouple the power supply with a 10uF capacitor.
The TCA8418RTWR has built-in ESD protection, but it's still recommended to follow proper ESD handling procedures during assembly and testing. Additionally, consider adding external ESD protection devices if the device will be exposed to harsh environments.
The TCA8418RTWR is rated for operation from -40°C to 85°C, but it's recommended to derate the device for high-temperature operation to ensure reliability.
Use a logic analyzer or oscilloscope to monitor the device's signals, and check for proper power supply and decoupling. Also, review the device's datasheet and application notes for common pitfalls and troubleshooting tips.
The TCA8418RTWR is a robust device, but it's still recommended to follow proper PCB design and assembly practices to ensure reliability in high-vibration environments. Consider adding mechanical stress relief and using a rigid PCB material.