SN74LVC2T45 具有可配置电压转换和 3 态输出的双位双电源收发器
This dual-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes.
The SN74LVC2T45 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input activate either the B-port outputs or the A-port outputs. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated. The input circuitry on both A and B ports always is active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.
The SN74LVC2T45 is designed so that the DIR input circuit is supplied by VCCA.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down.
The VCC isolation feature ensures that if either VCC input is at GND, both ports are in the high-impedance state.
NanoFree™ package technology is a major breakthrough in IC packaging concepts, using the die as the package
| SN74LVC2T45 | |
| Voltage Nodes(V) | 5 |
| Vcc range(V) | 1.65 to 5.5 |
| Logic | True |
| No. of Bits | 2 |
| Bus Drive(ma) | -32/32 |
| Output Drive(mA) | -24/24 |
| Static Current | 0.004 |
| tpd max(ns) | 3.9 |
| Technology Family | LVC |
| Pin/Package | 8DSBGA, 8SM8, 8US8 |
| Operating Temperature Range(°C) | -40 to 85 |
| Approx. Price (US$) | 0.40 | 1ku |
| Rating | Catalog |
SN74LVC2T45 特性
- Available in the Texas Instruments NanoFree™ Package
- Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65-V to 5.5-V Power-Supply Range
- VCC Isolation Feature — If Either VCC Input Is at GND, Both Ports Are in the High-Impedance State
- DIR Input Circuit Referenced to VCCA
- Low Power Consumption, 10-µA Max ICC
- ±24-mA Output Drive at 3.3 V
- Ioff Supports Partial-Power-Down Mode Operation
- Max Data Rates
- 420 Mbps (3.3-V to 5-V Translation)
- 210 Mbps (Translate to 3.3 V)
- 140 Mbps (Translate to 2.5 V)
- 75 Mbps (Translate to 1.8 V)
- Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
- ESD Protection Exceeds JESD 22
- 4000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
- 1000-V Charged-Device Model (C101)
SN74LVC2T45 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 |
| SN74LVC2T45DCTR | ACTIVE | -40 to 85 | 0.40 | 1ku | SM8 (DCT) | 8 | 3000 | LARGE T&R | |
| SN74LVC2T45DCTRE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SM8 (DCT) | 8 | 3000 | LARGE T&R | |
| SN74LVC2T45DCTRG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | SM8 (DCT) | 8 | 3000 | LARGE T&R | |
| SN74LVC2T45DCTT | ACTIVE | -40 to 85 | 0.75 | 1ku | SM8 (DCT) | 8 | 250 | SMALL T&R | |
| SN74LVC2T45DCTTE4 | ACTIVE | -40 to 85 | 0.75 | 1ku | SM8 (DCT) | 8 | 250 | SMALL T&R | |
| SN74LVC2T45DCTTG4 | ACTIVE | -40 to 85 | 0.75 | 1ku | SM8 (DCT) | 8 | 250 | SMALL T&R | |
| SN74LVC2T45DCUR | ACTIVE | -40 to 85 | 0.40 | 1ku | US8 (DCU) | 8 | 3000 | LARGE T&R | |
| SN74LVC2T45DCURE4 | ACTIVE | -40 to 85 | 0.40 | 1ku | US8 (DCU) | 8 | 3000 | LARGE T&R | |
| SN74LVC2T45DCURG4 | ACTIVE | -40 to 85 | 0.40 | 1ku | US8 (DCU) | 8 | 3000 | LARGE T&R | |
| SN74LVC2T45DCUT | ACTIVE | -40 to 85 | 0.75 | 1ku | US8 (DCU) | 8 | 250 | SMALL T&R | |
| SN74LVC2T45DCUTE4 | ACTIVE | -40 to 85 | 0.75 | 1ku | US8 (DCU) | 8 | 250 | SMALL T&R | |
| SN74LVC2T45DCUTG4 | ACTIVE | -40 to 85 | 0.75 | 1ku | US8 (DCU) | 8 | 250 | SMALL T&R | |
| SN74LVC2T45YZPR | ACTIVE | -40 to 85 | 0.40 | 1ku | DSBGA (YZP) | 8 | 3000 | LARGE T&R |
SN74LVC2T45 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 |
| SN74LVC2T45DCTR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCTR | SN74LVC2T45DCTR |
| SN74LVC2T45DCTRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCTRE4 | SN74LVC2T45DCTRE4 |
| SN74LVC2T45DCTRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCTRG4 | SN74LVC2T45DCTRG4 |
| SN74LVC2T45DCTT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCTT | SN74LVC2T45DCTT |
| SN74LVC2T45DCTTE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCTTE4 | SN74LVC2T45DCTTE4 |
| SN74LVC2T45DCTTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCTTG4 | SN74LVC2T45DCTTG4 |
| SN74LVC2T45DCUR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCUR | SN74LVC2T45DCUR |
| SN74LVC2T45DCURE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCURE4 | SN74LVC2T45DCURE4 |
| SN74LVC2T45DCURG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCURG4 | SN74LVC2T45DCURG4 |
| SN74LVC2T45DCUT | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCUT | SN74LVC2T45DCUT |
| SN74LVC2T45DCUTE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCUTE4 | SN74LVC2T45DCUTE4 |
| SN74LVC2T45DCUTG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVC2T45DCUTG4 | SN74LVC2T45DCUTG4 |
| SN74LVC2T45YZPR | Green (RoHS & no Sb/Br) | SNAGCU | Level-1-260C-UNLIM | SN74LVC2T45YZPR | SN74LVC2T45YZPR |
SN74LVC2T45 应用技术支持与电子电路设计开发资源下载
- SN74LVC2T45 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
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- Understanding and Interpreting Standard-Logic Data Sheets (PDF 857 KB)
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- CMOS Power Consumption and CPD Calculation (PDF 89 KB)
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- HiRel Unitrode Power Management Brochure (PDF 206 KB)
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- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)
