TCA6424ARGJR vs SX1508IULTRT Comparison
Detailed side-by-side comparison of TCA6424ARGJR by Texas Instruments and SX1508IULTRT by Semtech Corporation. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Texas Instruments
TCA6424ARGJR - 24-bit I2C/SMBus I/O Expander | Texas Instruments
TCA6424ARGJR ✓ ActiveSemtech Corporation
SX1508IULTRT - 8-bit I2C GPIO Expander with LED Driver | Semtech
SX1508IULTRT ✓ ActiveSpecification Comparison
| Parameter | TCA6424ARGJR | SX1508IULTRT |
|---|---|---|
| Brand | Texas Instruments | Semtech Corporation |
| Category | Interface ICs | Interface ICs |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $1.55 | $0.95 |
| Number of I/O Bits | 24 | — |
| Interface | I2C, SMBus | — |
| I2C Clock Frequency | up to 400 kHz | 400 kHz |
| Operating Supply Voltage (VCCI) | 1.65 V to 5.5 V | — |
| P-port Voltage (VCCP) | 1.65 V to 5.5 V | — |
| Number of Ports | 3 x 8-bit (P0, P1, P2) | — |
| Hardware Address Pins | A0, A1, A2 (3 pins, up to 8 devices on bus) | — |
| Interrupt Output | Yes (open-drain INT, active-low) | Active-low INT with masking |
| Reset Pin | Yes (RESET, active-low) | — |
| Configuration Registers | Yes (separate input/output/polarity/configuration) | — |
| Package | UQFN-32 (RGJ) 5x5 mm with EP | 20-QFN-UT (3x3 mm) Exposed Pad |
| Operating Temperature Range | -40C to +85C (industrial) | — |
| ESD Rating | [DATA_NEEDED: HBM/CDM ESD rating] | — |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | Compliant | Compliant |
| Interface Type | — | I2C (Standard / Fast / High-Speed) |
| Number of I/O | — | 8 |
| Supply Voltage (VCC) | — | 1.2 V to 3.6 V |
| I/O Voltage Tolerance | — | Up to 5.5 V |
| Output Drive | — | 8 mA per pin (sink/source) |
| LED PWM Frequency | — | 2 Hz to 2 kHz |
| LED PWM Resolution | — | 4 to 124 duty steps |
| Keypad Engine | — | Up to 8x8 matrix, auto-scan |
| Programmable Pull-ups | — | Yes (internal, per pin) |
| Selectable I2C Addresses | — | 4 (via ADDR0/ADDR1 pins) |
| Operating Temperature | — | -40 C to +85 C |
| Packaging | — | Tape & Reel (TR) |