SN74LVC4245A 具有可配置电压转换和 3 态输出的 32 位双电源总线收发器
This 8-bit (octal) noninverting bus transceiver contains two separate supply rails; B port has VCCB, which is set at 3.3 V, and A port has VCCA, which is set at 5 V. This allows for translation from a 3.3-V to a 5-V environment, and vice versa.
The SN74LVC4245A is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE)\ input can be used to disable the device so the buses are effectively isolated. The control circuitry (DIR, OE\) is powered by VCCA.
The SN74LVC4245A pinout allows the designer to switch to a normal all-3.3-V or all-5-V 20-pin ’245 device without board re-layout
| SN74LVC4245A | |
| Voltage Nodes(V) | 5 / 3.3, 2.7 |
| Vcc range(V) | SplitRail |
| Input Level | TTL/CMOS |
| Output Level | LVTTL |
| Logic | True |
| No. of Bits | 8 |
| No. of Outputs | 8 |
| Output Drive(mA) | -24/24 |
| Static Current | 0.08 |
| tpd max(ns) | 6.7 |
| Technology Family | LVC |
| Vmin(V) | 4.5/2.7 |
| Vmax(V) | 5.5/3.6 |
| Pin/Package | 24SOIC, 24SSOP, 24TSSOP |
| Operating Temperature Range(°C) | -40 to 85 |
| Approx. Price (US$) | 0.70 | 1ku |
| Rating | Catalog |
SN74LVC4245A 特性
- Bidirectional Voltage Translator
- 5.5 V on A Port and 2.7 V to 3.6 V on B Port
- Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
- Latch-Up Performance Exceeds 250 mA Per JESD 17
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
SN74LVC4245A 芯片订购指南
| 器件 | 状态 | 温度 | 价格（美元） | 封装 | 引脚 | 封装数量 | 封装载体 | 丝印标记 |
| SN74LVC4245ADW | ACTIVE | -40 to 85 | 0.80 | 1ku | SOIC (DW) | 24 | 25 | TUBE | |
| SN74LVC4245ADWE4 | ACTIVE | -40 to 85 | 0.80 | 1ku | SOIC (DW) | 24 | 25 | TUBE | |
| SN74LVC4245ADWG4 | ACTIVE | -40 to 85 | 0.80 | 1ku | SOIC (DW) | 24 | 25 | TUBE | |
| SN74LVC4245ADWR | ACTIVE | -40 to 85 | 0.70 | 1ku | SOIC (DW) | 24 | 2000 | LARGE T&R | |
| SN74LVC4245ADWRE4 | ACTIVE | -40 to 85 | 0.70 | 1ku | SOIC (DW) | 24 | 2000 | LARGE T&R | |
| SN74LVC4245ADWRG4 | ACTIVE | -40 to 85 | 0.70 | 1ku | SOIC (DW) | 24 | 2000 | LARGE T&R |
SN74LVC4245A 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 |
| SN74LVC4245ADW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC4245ADW | SN74LVC4245ADW |
| SN74LVC4245ADWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC4245ADWE4 | SN74LVC4245ADWE4 |
| SN74LVC4245ADWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC4245ADWG4 | SN74LVC4245ADWG4 |
| SN74LVC4245ADWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC4245ADWR | SN74LVC4245ADWR |
| SN74LVC4245ADWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC4245ADWRE4 | SN74LVC4245ADWRE4 |
| SN74LVC4245ADWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC4245ADWRG4 | SN74LVC4245ADWRG4 |
SN74LVC4245A 应用技术支持与电子电路设计开发资源下载
- SN74LVC4245A 数据资料 dataSheet 下载.PDF
- TI 德州仪器电压电平转换产品选型与价格 . xls
- 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)