PCA9557 具有复位和配置寄存器的远程 8 位 I2C 和 SMBus 低功率 I/O 扩展器
| PCA9557 | |
| No. of Outputs | 2 |
| Interrupt Output | Yes |
| fSCLK(Max)(MHz) | 400 |
| VCC(Min)(V) | 2.3 |
| VCC(Max)(V) | 5.5 |
| Pin/Package | 24SOIC, 24SSOP, 24SSOP/QSOP, 24TVSOP, 24VQFN |
| Operating Temperature Range(°C) | -40 to 85 |
| Max Frequency(kHz) | 400 |
| I2C Address | 0100 xxx |
| # of I/Os | 16 |
| Vcc range(V) | 2.3 to 5.5 |
| Configuration Registers | Yes |
| 5V Tolerant I/O | Yes |
| Push–Pull I/O Type | Yes |
PCA9557 特性
- Low Standby Current Consumption of 1 µA Max
- I2C to Parallel Port Expander
- Operating Power-Supply Voltage Range of 2.3 V to 5.5 V
- 5-V Tolerant I/O Ports
- 400-kHz Fast I2C Bus
- Three Hardware Address Pins Allow for Use of up to Eight Devices on I2C/SMBus
- Lower-Voltage Higher-Performance Migration Path for PCA9556
- Input/Output Configuration Register
- Polarity Inversion Register
- Active-Low Reset Input
- Internal Power-On Reset
- High-Impedance Open Drain on P0
- Power Up With All Channels Configured as Inputs
- No Glitch on Power Up
- Noise Filter on SCL/SDA Inputs
- Latched Outputs With High Current Drive Maximum 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)
PCA9557 芯片订购指南
| 器件 | 状态 | 温度 | 价格 | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| PCA9557D | ACTIVE | -40 to 85 | 1.10 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| PCA9557DB | ACTIVE | -40 to 85 | 1.10 | 1ku | SSOP (DB) | 16 | 80 | TUBE | |
| PCA9557DBG4 | ACTIVE | -40 to 85 | 1.10 | 1ku | SSOP (DB) | 16 | 80 | TUBE | |
| PCA9557DBR | ACTIVE | -40 to 85 | 0.90 | 1ku | SSOP (DB) | 16 | 2000 | LARGE T&R | |
| PCA9557DBRG4 | ACTIVE | -40 to 85 | 0.90 | 1ku | SSOP (DB) | 16 | 2000 | LARGE T&R | |
| PCA9557DG4 | ACTIVE | -40 to 85 | 1.10 | 1ku | SOIC (D) | 16 | 40 | TUBE | |
| PCA9557DGVR | ACTIVE | -40 to 85 | 0.90 | 1ku | TVSOP (DGV) | 16 | 2000 | LARGE T&R | |
| PCA9557DGVRG4G4 | ACTIVE | -40 to 85 | 0.90 | 1ku | TVSOP (DGV) | 16 | 2000 | LARGE T&R | |
| PCA9557DR | ACTIVE | -40 to 85 | 0.90 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| PCA9557DRG4 | ACTIVE | -40 to 85 | 0.90 | 1ku | SOIC (D) | 16 | 2500 | LARGE T&R | |
| PCA9557DT | ACTIVE | -40 to 85 | 1.05 | 1ku | SOIC (D) | 16 | 250 | SMALL T&R | |
| PCA9557DTG4 | ACTIVE | -40 to 85 | 1.05 | 1ku | SOIC (D) | 16 | 250 | SMALL T&R | |
| PCA9557PW | ACTIVE | -40 to 85 | 1.10 | 1ku | TSSOP (PW) | 16 | 90 | TUBE | |
| PCA9557PWG4 | ACTIVE | -40 to 85 | 1.10 | 1ku | TSSOP (PW) | 16 | 90 | TUBE | |
| PCA9557PWR | ACTIVE | -40 to 85 | 0.90 | 1ku | TSSOP (PW) | 16 | 2000 | LARGE T&R | |
| PCA9557PWRG4 | ACTIVE | -40 to 85 | 0.90 | 1ku | TSSOP (PW) | 16 | 2000 | LARGE T&R | |
| PCA9557PWT | ACTIVE | -40 to 85 | 1.05 | 1ku | TSSOP (PW) | 16 | 250 | SMALL T&R | |
| PCA9557PWTG4 | ACTIVE | -40 to 85 | 1.05 | 1ku | TSSOP (PW) | 16 | 250 | SMALL T&R | |
| PCA9557RGVR | ACTIVE | -40 to 85 | 0.90 | 1ku | VQFN (RGV) | 16 | 2500 | LARGE T&R | |
| PCA9557RGVRG4 | ACTIVE | -40 to 85 | 0.90 | 1ku | VQFN (RGV) | 16 | 2500 | LARGE T&R | |
| PCA9557RGYR | ACTIVE | -40 to 85 | 0.90 | 1ku | VQFN (RGY) | 16 | 3000 | LARGE T&R | |
| PCA9557RGYRG4 | ACTIVE | -40 to 85 | 0.90 | 1ku | VQFN (RGY) | 16 | 3000 | LARGE T&R |
PCA9557 质量与无铅数据
| 器件 | 环保计划* | 铅/焊球涂层 | MSL 等级/回流焊峰 | 环保信息与无铅 (Pb-free) | DPPM / MTBF / FIT 率 |
| PCA9557D | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557D | PCA9557D |
| PCA9557DB | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DB | PCA9557DB |
| PCA9557DBG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DBG4 | PCA9557DBG4 |
| PCA9557DBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DBR | PCA9557DBR |
| PCA9557DBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DBRG4 | PCA9557DBRG4 |
| PCA9557DG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DG4 | PCA9557DG4 |
| PCA9557DGVR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DGVR | PCA9557DGVR |
| PCA9557DGVRG4G4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DGVRG4G4 | PCA9557DGVRG4G4 |
| PCA9557DR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DR | PCA9557DR |
| PCA9557DRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DRG4 | PCA9557DRG4 |
| PCA9557DT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DT | PCA9557DT |
| PCA9557DTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557DTG4 | PCA9557DTG4 |
| PCA9557PW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557PW | PCA9557PW |
| PCA9557PWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557PWG4 | PCA9557PWG4 |
| PCA9557PWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557PWR | PCA9557PWR |
| PCA9557PWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557PWRG4 | PCA9557PWRG4 |
| PCA9557PWT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557PWT | PCA9557PWT |
| PCA9557PWTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9557PWTG4 | PCA9557PWTG4 |
| PCA9557RGVR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | PCA9557RGVR | PCA9557RGVR |
| PCA9557RGVRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | PCA9557RGVRG4 | PCA9557RGVRG4 |
| PCA9557RGYR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | PCA9557RGYR | PCA9557RGYR |
| PCA9557RGYRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | PCA9557RGYRG4 | PCA9557RGYRG4 |
PCA9557 应用技术支持与电子电路设计开发资源下载
- PCA9557 数据资料 dataSheet 下载.PDF
- TI 德州仪器I2C 逻辑器件产品选型与价格 . xls
- Logic Guide 2009 (PDF 4263 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
- Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
- TI IBIS File Creation, Validation, and Distribution Processes (PDF 380 KB)
- Implications of Slow or Floating CMOS Inputs (PDF 101 KB)
- CMOS Power Consumption and CPD Calculation (PDF 89 KB)
- Designing With Logic (PDF 186 KB)
- Live Insertion (PDF 150 KB)
- Input and Output Characteristics of Digital Integrated Circuits (PDF 1708 KB)
- Using High Speed CMOS and Advanced CMOS in Systems With Multiple Vcc (PDF 43 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)
