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產品規格表
TCA9539
- I2C to Parallel Port Expander
- Low Standby-Current Consumption
- Open-Drain Active-Low Interrupt Output
- Active-Low Reset Input
- 5-V Tolerant I/O Ports
- Compatible With Most Microcontrollers
- 400-kHz Fast I2C Bus
- Input and Output Configuration Register
- Polarity Inversion Register
- Internal Power-on Reset
- No Glitch on Power Up
- Noise Filter on SCL and SDA Inputs
- Address by Two Hardware Address Pins for Use
of up to Four Devices - Latched Outputs With High-Current Drive
Capability for Directly Driving LEDs - Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II - ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 1000-V Charged-Device Model (C101)
The TCA9539 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol). The device can operate with a power supply voltage (VCC) range from 1.65 V to 5.5 V. The device supports 100-kHz (I2C Standard mode) and 400-kHz (I2C Fast mode) clock frequencies. I/O expanders such as the TCA9539 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and other similar devices.
The features of the TCA9539 include an interrupt that is generated on the INT pin whenever an input port changes state. The A0 and A1 hardware selectable address pins allow up to four TCA9539 devices on the same I2C bus. The device can be reset to its default state by cycling the power supply and causing a power-on-reset. Also, the TCA9539 has a hardware RESET pin that can be used to reset the device to its default state.
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設計工具
I2C-DESIGNER — I2C 設計工具
Use the I2C Designer tool to quickly resolve conflicts in addressing, voltage level and frequency in I2C based designs. Enter master and slave inputs to automatically generate an I2C tree or easily build a custom solution. This tool will help designers save time and comply with the I2C standard (...)
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
模擬工具
TINA-TI — 基於 SPICE 的類比模擬程式
TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
參考設計
TIDEP-01008 — Jacinto™ ADAS 處理器上的多感測器平臺參考設計
The multi-sensor platform reference design for Advanced Driver Assistance Systems (ADAS) from D3 Engineering provides qualified developers with a fully functioning evaluation platform for testing and development of ADAS applications, for use primarily in the automotive industry. D3 also (...)
參考設計
TIDA-00403 — 使用 TLV320AIC3268 miniDSP 轉碼器的超音波距離量測參考設計
The TIDA-00403 reference design uses off-the-shelf EVMs for ultrasonic distance measurement solutions using algorithms within the TLV320AIC3268 miniDSP. In conjunction with TI’s PurePath Studio design suite, a robust and user configurable ultrasonic distance measurement system can be designed (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| TSSOP (PW) | 24 | Ultra Librarian |
| VQFN (RGE) | 24 | Ultra Librarian |
| WQFN (RTW) | 24 | Ultra Librarian |
訂購與品質
內含資訊：
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
內含資訊：
- 晶圓廠位置
- 組裝地點
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。