TEXAS INSTRUMENTS PCA9555PWR 芯片, 输入/输出扩展器, TSSOP24
Description
This 16-bit I/O expander for the two-line bidirectional bus I2C is designed for 2.3-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock SCL, serial data SDA].
The PCA9555 consists of two 8-bit Configuration input or output selection, Input Port, Output Port, and Polarity Inversion active high or active low operation registers. At power on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.
Features
• Low Standby-Current Consumption of 1 μA Max
• I2C to Parallel Port Expander
• Open-Drain Active-Low Interrupt Output
• 5-V Tolerant I/O Ports
• Compatible With Most Microcontrollers
• 400-kHz Fast I2C Bus
• Address by Three Hardware Address Pins for Use of up to Eight Devices
• Polarity Inversion Register
• 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
– 200-V Machine Model A115-A
– 1000-V Charged-Device Model C101
电源电压DC 2.30V ~ 5.50V
输出接口数 2
针脚数 24
时钟频率 400 kHz
电压波节 2.70 V, 3.30 V, 3.60 V, 5.00 V
输入/输出数 16 Input
工作温度Max 85 ℃
工作温度Min -40 ℃
电源电压 2.3V ~ 5.5V
电源电压Max 5.5 V
电源电压Min 2.3 V
安装方式 Surface Mount
引脚数 24
封装 TSSOP-24
封装 TSSOP-24
工作温度 -40℃ ~ 85℃
产品生命周期 Not Recommended for New Designs
包装方式 Tape & Reel TR
RoHS标准 RoHS Compliant
含铅标准 Lead Free
REACH SVHC版本 2015/06/15
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
PCA9555PWR TI 德州仪器 | 当前型号 | 当前型号 |
PCA9555DBR 德州仪器 | 完全替代 | PCA9555PWR和PCA9555DBR的区别 |
PCA9535DWR 德州仪器 | 完全替代 | PCA9555PWR和PCA9535DWR的区别 |
PCA9535PWR 德州仪器 | 完全替代 | PCA9555PWR和PCA9535PWR的区别 |