PCA9306 二路双向 I2C 总线和 SM 总线电压位准转换器
This dual bidirectional I2C and SMBus voltage-level translator, with an enable (EN) input, is operational from 1.2-V to 3.3-V VREF1 and 1.8-V to 5.5-V VREF2.
The PCA9306 allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin. The low ON-state resistance (ron) of the switch allows connections to be made with minimal propagation delay. When EN is high, the translator switch is ON, and the SCL1 and SDA1 I/O are connected to the SCL2 and SDA2 I/O, respectively, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports.
In I2C applications, the bus capacitance limit of 400 pF restricts the number of devices and bus length
| PCA9306 | |
| No. of Outputs | 2 |
| tpd max(ns) | 1.5 |
| Operating Temperature Range(°C) | -40 to 85 |
| Rating | Catalog |
| fSCLK(Max)(MHz) | 400 |
| Pin/Package | 8DSBGA, 8SM8, 8US8, 8X2SON |
| Max Frequency(kHz) | 400 |
| Function | Voltage Translator |
| Vcc range(V) | 0 to 5.5 |
| Enable Pin | Yes |
| Open–Drain I/O Type | Yes |
| 5V Tolerant I/O | Yes |
PCA9306 特性
- 2-Bit Bidirectional Translator for SDA and SCL Lines in Mixed-Mode I2C Applications
- I2C and SMBus Compatible
- Less Than 1.5-ns Maximum Propagation Delay to Accommodate Standard-Mode and Fast-Mode I2C Devices and Multiple Masters
- Allows Voltage-Level Translator Between
- 1.2-V VREF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V VREF2
- 1.8-V VREF1 and 2.5-V, 3.3-V, or 5-V VREF2
- 2.5-V VREF1 and 3.3-V or 5-V VREF2
- 3.3-V VREF1 and 5-V VREF2
- Provides Bidirectional Voltage Translation With No Direction Pin
- Low 3.5-
ON-State Connection Between Input and Output Ports
Provides Less Signal Distortion
- Open-Drain I2C I/O Ports (SCL1, SDA1, SCL2, and SDA2)
- 5-V Tolerant I2C I/O Ports to Support Mixed-Mode Signal Operation
- High-Impedance SCL1, SDA1, SCL2, and SDA2 Pins for EN = Low
- Lock-Up-Free Operation for Isolation When EN = Low
- Flow-Through Pinout for Ease of Printed Circuit Board Trace Routing
- 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)
PCA9306 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 |
| PCA9306DCTR | ACTIVE | -40 to 85 | 0.26 | 1ku | SM8 (DCT) | 8 | 3000 | LARGE T&R | |
| PCA9306DCTRE4 | ACTIVE | -40 to 85 | 0.26 | 1ku | SM8 (DCT) | 8 | 3000 | LARGE T&R | |
| PCA9306DCTRG4 | ACTIVE | -40 to 85 | 0.26 | 1ku | SM8 (DCT) | 8 | 3000 | LARGE T&R | |
| PCA9306DCTT | ACTIVE | -40 to 85 | 0.55 | 1ku | SM8 (DCT) | 8 | 250 | SMALL T&R | |
| PCA9306DCTTE4 | ACTIVE | -40 to 85 | 0.55 | 1ku | SM8 (DCT) | 8 | 250 | SMALL T&R | |
| PCA9306DCTTG4 | ACTIVE | -40 to 85 | 0.55 | 1ku | SM8 (DCT) | 8 | 250 | SMALL T&R | |
| PCA9306DCUR | ACTIVE | -40 to 85 | 0.26 | 1ku | US8 (DCU) | 8 | 3000 | LARGE T&R | |
| PCA9306DCURE4 | ACTIVE | -40 to 85 | 0.26 | 1ku | US8 (DCU) | 8 | 3000 | LARGE T&R | |
| PCA9306DCURG4 | ACTIVE | -40 to 85 | 0.26 | 1ku | US8 (DCU) | 8 | 3000 | LARGE T&R | |
| PCA9306DCUT | ACTIVE | -40 to 85 | 0.55 | 1ku | US8 (DCU) | 8 | 250 | SMALL T&R | |
| PCA9306DCUTE4 | ACTIVE | -40 to 85 | 0.55 | 1ku | US8 (DCU) | 8 | 250 | SMALL T&R | |
| PCA9306DCUTG4 | ACTIVE | -40 to 85 | 0.55 | 1ku | US8 (DCU) | 8 | 250 | SMALL T&R | |
| PCA9306DQER | ACTIVE | -40 to 85 | 0.26 | 1ku | X2SON (DQE) | 8 | 5000 | LARGE T&R | |
| PCA9306YZTR | ACTIVE | -40 to 85 | 0.26 | 1ku | DSBGA (YZD) | 8 | 3000 | LARGE T&R |
PCA9306 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 |
| PCA9306DCTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCTR | PCA9306DCTR |
| PCA9306DCTRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCTRE4 | PCA9306DCTRE4 |
| PCA9306DCTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCTRG4 | PCA9306DCTRG4 |
| PCA9306DCTT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCTT | PCA9306DCTT |
| PCA9306DCTTE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCTTE4 | PCA9306DCTTE4 |
| PCA9306DCTTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCTTG4 | PCA9306DCTTG4 |
| PCA9306DCUR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCUR | PCA9306DCUR |
| PCA9306DCURE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCURE4 | PCA9306DCURE4 |
| PCA9306DCURG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCURG4 | PCA9306DCURG4 |
| PCA9306DCUT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCUT | PCA9306DCUT |
| PCA9306DCUTE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCUTE4 | PCA9306DCUTE4 |
| PCA9306DCUTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | PCA9306DCUTG4 | PCA9306DCUTG4 |
| PCA9306DQER | Green (RoHS & no Sb/Br) | NIPDAU | Level-1-260C-UNLIM | PCA9306DQER | PCA9306DQER |
| PCA9306YZTR | TBD | SNAGCU | Level-1-260C-UNLIM | PCA9306YZTR | PCA9306YZTR |
PCA9306 应用技术支持与电子电路设计开发资源下载
- PCA9306 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)