NXP Semiconductors PCAL6524超低电压输入/输出扩展器
NXP PCAL6524超低电压输入/输出扩展器通过快速模式Plus (Fm+) I2C总线接口为大部分微控制器提供远程输入/输出扩展。 PCAL6524 24位通用输入/输出扩展器配有一个超低电压接口，用于直接连接到微控制器。 当需要额外输入/输出同时又要将互连要求降至最低时， NXP输入/输出扩展器就是一个简易的解决方案。这对电池供电移动应用特别有用，可用于连接传感器、按钮和按键。
特性
- I2C-bus to parallel port expanders
- Operating power supply voltage range of 0.8V to 3.6V on the I2C-bus side
- Allows bidirectional voltage-level translation and GPIO expansion between 0.8V to 3.6V SCL/SDA and 1.8V, 2.5V, 3.3V, 5.5V Port P
- Low standby current consumption, 2.0µA typical at 3.3V VDD(P)
- Schmitt trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs
- Vhys = 0.05V (typical) at 0.8V
- Vhys = 0.18V (typical) at 1.8V
- Vhys = 0.33V (typical) at 3.3V
- 1MHz Fast-mode Plus I2C-bus
- 5.5V tolerant I/O ports and 3.6V tolerant I2C-bus pins
- Active LOW reset input (RESET)
- Open-drain active LOW interrupt output (INT)
- Internal power-on reset
- Noise filter on SCL/SDA inputs
- Latched outputs with 25mA drive maximum capability for directly driving LEDs
- Latch-up performance exceeds 100mA per JESD 78, Class II
- ESD protection exceeds JESD 22
- 2000V Human-Body Model (A114-A)
- 1000V Charged-Device Model (C101)
- TSSOP32 and HUQFN32 packages offered
视频
Additional Resources
Development Tools
NXP Semiconductors PCAL6524EV 24-Bit GPIO Arduino扩展板
用于PCAL6524超低电压I/O扩展器的演示和开发平台。
NXP Semiconductors MCIMX93-QSB开发板
用于评估采用9mm x 9mm封装的i.MX 93应用处理器的平台。
NXP Semiconductors FRDM-IMX93 开发板
由i.MX 93应用处理器提供支持，具有NXP Wi-Fi ® 和蓝牙® 功能。
Related Products
NXP Semiconductors PCAL6534 34位通用I/O扩展器
通过快速模式+ (Fm+) I2C总线接口为大多数MCU提供远程GPIO扩展，具有敏捷I/O特性。
NXP Semiconductors I2C General Purpose I/O Expanders
GPIO expansion for most microprocessor families, saving microprocessor GPIOs for critical functions.
Block Diagram
发布日期: 2016-02-10
| 更新日期: 2024-11-21