TCA6424ARGJR
Active24-BIT TRANSLATING 1.65- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT, RESET & CONFIG REGISTERS
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TCA6424ARGJR
Active24-BIT TRANSLATING 1.65- TO 5.5-V I2C/SMBUS I/O EXPANDER WITH INTERRUPT, RESET & CONFIG REGISTERS
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Technical Specifications
Parameters and characteristics for this part
| Specification | TCA6424ARGJR |
|---|---|
| Clock Frequency | 400 kHz |
| Current - Output Source/Sink [custom] | 10 mA |
| Current - Output Source/Sink [custom] | 25 mA |
| Features | POR |
| Interface | I2C, SMBus |
| Interrupt Output | True |
| Mounting Type | Surface Mount |
| Number of I/O | 24 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | Push-Pull |
| Package / Case | 32-UFQFN Exposed Pad |
| Supplier Device Package | 32-UQFN (5x5) |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 1.65 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.13 | |
| 10 | $ 1.91 | |||
| 25 | $ 1.81 | |||
| 100 | $ 1.54 | |||
| 250 | $ 1.44 | |||
| 500 | $ 1.26 | |||
| 1000 | $ 1.05 | |||
| Digi-Reel® | 1 | $ 2.13 | ||
| 10 | $ 1.91 | |||
| 25 | $ 1.81 | |||
| 100 | $ 1.54 | |||
| 250 | $ 1.44 | |||
| 500 | $ 1.26 | |||
| 1000 | $ 1.05 | |||
| Tape & Reel (TR) | 3000 | $ 0.97 | ||
| 6000 | $ 0.94 | |||
| Texas Instruments | LARGE T&R | 1 | $ 1.60 | |
| 100 | $ 1.32 | |||
| 250 | $ 0.95 | |||
| 1000 | $ 0.71 | |||
Description
General part information
TCA6424A Series
This 24-bit I/O expander for the two-line bidirectional bus (I2C) is designed to provide general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL) and serial data (SDA)].
The major benefit of this device is its wide VCCrange. It can operate from 1.65 V to 5.5 V on the P-port side and on the SDA/SCL side. This allows the TCA6424 to interface with next-generation microprocessors and microcontrollers on the SDA/SCL side, where supply levels are dropping down to conserve power. In contrast to the dropping power supplies of microprocessors and microcontrollers, some PCB components, such as LEDs, remain at a 5-V power supply.
The bidirectional voltage level translation in the TCA6424 is provided through VCCI. VCCIshould be connected to the VCCof the external SCL/SDA lines. This indicates the VCClevel of the I2C bus to the TCA6424. The voltage level on the P-port of the TCA6424 is determined by the VCCP.
Documents
Technical documentation and resources
