SX1508IULTRT vs TCA6424ARGJR 对比
详细并排对比 SX1508IULTRT 出自 Semtech Corporation 和 TCA6424ARGJR 出自 Texas Instruments。对比关键规格、电气参数、封装、生命周期状态、价格和供货情况，以确定最适合您设计需求的元器件。
Semtech Corporation
SX1508IULTRT - 8-bit I2C GPIO Expander with LED Driver | Semtech
SX1508IULTRT ✓ 量产中Texas Instruments
TCA6424ARGJR - 24-bit I2C/SMBus I/O Expander | Texas Instruments
TCA6424ARGJR ✓ 量产中规格对比
| 参数 | SX1508IULTRT | TCA6424ARGJR |
|---|---|---|
| 品牌 | Semtech Corporation | Texas Instruments |
| 分类 | Interface ICs | Interface ICs |
| 生命周期状态 | 有效 | 有效 |
| 库存状态 | 有库存 | 有库存 |
| 单价（USD） | $0.95 | $1.55 |
| 接口类型 | I2C (Standard / Fast / High-Speed) | — |
| Number of I/O | 8 | — |
| I2C Clock Frequency | 400 kHz | up to 400 kHz |
| 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 | — |
| Interrupt Output | Active-low INT with masking | Yes (open-drain INT, active-low) |
| Programmable Pull-ups | Yes (internal, per pin) | — |
| Selectable I2C Addresses | 4 (via ADDR0/ADDR1 pins) | — |
| 工作温度 | -40 C to +85 C | — |
| 封装 | 20-QFN-UT (3x3 mm) Exposed Pad | UQFN-32 (RGJ) 5x5 mm with EP |
| Packaging | Tape & Reel (TR) | — |
| 安装类型 | Surface Mount | Surface Mount |
| RoHS 状态 | Compliant | Compliant |
| Number of I/O Bits | — | 24 |
| 接口 | — | I2C, SMBus |
| 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) |
| Reset Pin | — | Yes (RESET, active-low) |
| Configuration Registers | — | Yes (separate input/output/polarity/configuration) |
| 工作温度范围 | — | -40C to +85C (industrial) |
| ESD Rating | — | [DATA_NEEDED: HBM/CDM ESD rating] |