PCA9655E: I/O Port Expander, I2C, 16-bit, Remote Low Voltage w/Interrupt
The PCA9655E provides 16 bits of General Purpose parallel Input and Output (GPIO) expansion through the I2C-bus and SMBus. The PCA9655E consists of two 8-bit Configuration (Input or Output selection); Input, Output and Polarity Inversion (active-HIGH) or active-LOW operation) registers. At power on, all IOs default to inputs. Each IO may be configured as either input or output by writing to its corresponding IO configuration bit. The data for each Input or Output is kept in its corresponding Input or Output register. The Polarity Inversion register may be used to invert the Polarity if the read register. All registers can be read by the system master. The PCA9655E provides an open-drain interrupt output which is activated when any input state differs from its corresponding input port register state. The interrupt output is used to indicate to the system master that an input state has changed. The power-on reste sets the registers to their default values and initializes the device state machine. Three hardware pins (AD0, AD1, AD2) are used to configure the I2C-bus slave address of the device. Up to 64 devices are allowed to share the same I2C-bus and SMBus.
特性- VCC Operating Range: 1.65 V to 5.5 V
- SDA Sink Capability: 30 mA
- 5.5 V Tolerant I/Os
- Polarity Inversion Register
- Active LOW Interrupt Output
- Low Standby Current
- Noise Filter on SCL/SDA Inputs
- No Glitch on Powerup
- Internal Poweron Reset
- 64 Programmable Slave Addresses Using Three Address Pins
- 16 I/O Pins Which Default to 16 Inputs
- I2C SCL Clock Frequencies Supported:Standard Mode: 100 kHz/Fast Mode: 400 kHz/Fast Mode +: 1 MHz
- ESD Performance: 2000 V Human Body Model,200 V Machine Model
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应用- Input/output Port Expansion for Extended Addressing Capability
| 终端产品 |
封装
应用注释 (1)
封装图纸 (3)
数据表 (1)
产品订购型号
| 产品 | 状况 | Compliance | 封装 | MSL* | 容器 | 预算价格 (1千个数量的单价） |
|---|
| PCA9655EDTR2G | Active | Pb-free
Halide free | TSSOP-24 | 948H-01 | 1 | Tape and Reel | 2500 | $0.7 |
| PCA9655EDWR2G | Active | Pb-free
Halide free | SOIC-24 | 751E-04 | 3 | Tape and Reel | 1000 | $0.7 |
| PCA9655EMTTXG | Active | Pb-free
Halide free | QFN-24 | 485BG | 1 | Tape and Reel | 3000 | $0.7 |
订购产品技术参数
| Product | I/O | Cascadable | VCC Min (V) | VCC Max (V) | Interrupt Output | I/O Pullups | LED Blink/PWM | IO Min (mA) |
|---|
| PCA9655EDTR2G | 16 | 8 Slave ID Addresses | 5.5 | 1.65 | Yes | Yes | No | 25 |
| PCA9655EDWR2G | 16 | 8 Slave ID Addresses | 5.5 | 1.65 | Yes | Yes | No | 25 |
| PCA9655EMTTXG | 16 | 8 Slave ID Addresses | 5.5 | 1.65 | Yes | Yes | No | 25 |
