参数资料
型号: PCA9557D/DG,118
厂商: NXP Semiconductors
文件页数: 1/30页
文件大小: 0K
描述: IC I/O PORT I2C/SMBUS 16-SOIC
标准包装: 2,500
接口: I²C,SM 总线
输入/输出数: 8
中断输出:
频率 - 时钟: 400kHz
电源电压: 2.3 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 16-SOIC(0.154",3.90mm 宽)
供应商设备封装: 16-SO
包装: 带卷 (TR)
包括: POR
其它名称: 935285892118
1.
General description
The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for
SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register,
8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption
and a high-impedance open-drain output pin, IO0.
The system master can enable the PCA9557’s I/O as either input or output by writing to
the configuration register. The system master can also invert the PCA9557 inputs by
writing to the active HIGH polarity inversion register. Finally, the system master can reset
the PCA9557 in the event of a time-out by asserting a LOW in the reset input.
The power-on reset puts the registers in their default state and initializes the
I2C-bus/SMBus state machine. The RESET pin causes the same reset/initialization to
occur without de-powering the part.
2.
Features and benefits
Lower voltage, higher performance migration path for the PCA9556
8 general purpose input/output expander/collector
Input/output configuration register
Active HIGH polarity inversion register
I2C-bus and SMBus interface logic
Internal power-on reset
Noise filter on SCL/SDA inputs
Active LOW reset input
3 address pins allowing up to 8 devices on the I2C-bus/SMBus
High-impedance open-drain on IO0
No glitch on power-up
Power-up with all channels configured as inputs
Low standby current
Operating power supply voltage range of 2.3 V to 5.5 V
5 V tolerant inputs/outputs
0 kHz to 400 kHz clock frequency
ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per
JESD22-C101
Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA
Three packages offered: SO16, TSSOP16, HVQFN16
PCA9557
8-bit I2C-bus and SMBus I/O port with reset
Rev. 7 — 10 December 2013
Product data sheet
相关PDF资料
PDF描述
PCA9574HR,115 IC I/O EXPANDER I2C 8B 16HXQFN
PCA9575PW1,118 IC I/O EXPANDER I2C 16B 24TSSOP
PCA9621PW,118 IC BUS PORT 8BIT 65MA 16TSSOP
PCA9655EDWR2G IC I/O EXPANDER I2C 16B SOIC-24
PCA9670D,512 IC I/O EXPANDER I2C 8B 16SOIC
相关代理商/技术参数
参数描述
PCA9557DG4 功能描述:接口-I/O扩展器 Rem 8B I2C & SMBus Low-Pwr I/O Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
PCA9557DGVR 功能描述:接口-I/O扩展器 Remote 8B I2C & SMBus Lo-Pwr I/O Exp RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
PCA9557DGVRG4G4 功能描述:接口-I/O扩展器 Rem 8B I2C & SMBus Low-Pwr I/O Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
PCA9557DR 功能描述:接口-I/O扩展器 Remote 8B I2C & SMBus Lo-Pwr I/O Exp RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
PCA9557DRG4 功能描述:接口-I/O扩展器 Rem 8B I2C & SMBus Low-Pwr I/O Expander RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel