TCA9406 双路双向 1MHz I2C 总线和 SMBus 电压电平转换器
The TCA9406 is a dual bidirectional I2C-Bus and SMBus Voltage-Level translator with enable (OE) Input. It is operational from 1.65 V to 3.6 V on A-Port and 2.3 V to 5.5 V on B-port. Enable (OE) input is referenced to VCCA with a maximum input voltage tolerance of 4.6 V.
The TCA9406 can operate up to 24Mbps in push pull mode and 2Mbps with open drain mod. Its compatible with a standard I2C bus 100 kHz, 400 kHz and 1 MHz at both sides of A-Port and B-Port.
With the standard I2C bus system, it needs pull-up resistors to provide logic HIGH levels on the translator bus. The TCA9406 is an open-drain bus level configuration of the I2C-bus. The value of pullup resistors depends on the system, but each side of the translator must have pull-up resistors and TCA9406 already has 10 k
pullup resistors on each side and it allows to add additional external pull-up resistors
| TCA9406 | |
| No. of Outputs | 2 |
| Operating Temperature Range(°C) | -40 to 85 |
| Rating | Catalog |
| VCC(Min)(V) | -0.5 |
| VCC(Max)(V) | 4.6 |
| Pin/Package | 8DSBGA, 8SM8, 8US8 |
| Max Frequency(kHz) | 1000 |
| Function | I2C Voltage Level Translator |
| Vcc range(V) | 1.65 to 3.6 |
| Enable Pin | Yes |
| Open–Drain I/O Type | Yes |
| 5V Tolerant I/O | Yes |
| Push–Pull I/O Type | Yes |
TCA9406 特性
- 2-Bit Bidirectional Translator for SDA and SCL Lines in Mixed-Mode I2C Applications
- Lock-Up Free for Bus Isolation when OE Control Pin referring to VCCA with 5-V Input Tolerant
- Level Translation Range
- 1.8 V to 2.5 V/3.3 V/5 V
- 2.5 V to 2.5 V/3.3 V/5 V
- 3.3 V to 3.3 V/5 V
- Internal10-k Pullup Resistor on Each Port and Option to Add
External Pullup Resistor if Required
- Provides Bidirectional Voltage Translation With No Direction Pin
- Ioff Support Partial Power Down (VCC= 0 V) With 2 mA
- High-Impedance Output SCL1, SDA1, SCL2, and SDA2 Pins When OE = Low or VCC= 0 V
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
- ESD Protection Exceeds JESD 22
- A Port
- 2500-V Human-Body Model (A114-B)
- 250-V Machine Model (A115-A)
- 1500-V Charged-Device Model (C101)
- B Port
- 8-kV Human-Body Model (A114-B)
- 250-V Machine Model (A115-A)
- 1500-V Charged-Device Model (C101)
- A Port
TCA9406 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 |
| TCA9406DCTR | ACTIVE | -40 to 85 | 0.38 | 1ku | SM8 (DCT) | 8 | 3000 | LARGE T&R | |
| TCA9406DCUR | ACTIVE | -40 to 85 | 0.38 | 1ku | US8 (DCU) | 8 | 3000 | LARGE T&R | |
| TCA9406YZPR | PREVIEW | -40 to 85 | DSBGA (YZD) | 8 | 3000 |
TCA9406 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 |
| TCA9406DCTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | TCA9406DCTR | TCA9406DCTR |
| TCA9406DCUR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | TCA9406DCUR | TCA9406DCUR |
TCA9406 应用技术支持与电子电路设计开发资源下载
- TCA9406 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)
