SN74LVTH240 具有三态输出的 3.3V ABT 八路缓冲器/驱动器
SN74LVTH240 描述
These octal buffers and line drivers are designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to provide a TTL interface to a 5-V system environment.
These devices are organized as two 4-bit buffer/line drivers with separate output-enable (OE)\ inputs. When OE\ is low, the devices pass data from the A inputs to the Y outputs. When OE\ is high, the outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE\ should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state
| SN74LVTH240 | |
| Voltage Nodes(V) | 3.3, 2.7 |
| Vcc range(V) | 2.7 to 3.6 |
| Input Level | TTL/CMOS |
| Output Level | LVTTL |
| No. of Outputs | 8 |
| Output Drive(mA) | -32/64 |
| tpd max(ns) | 3.8 |
| Static Current | 5 |
| Logic | Inv |
| Technology Family | LVT |
| Rating | Catalog |
SN74LVTH240 特性
- Support Mixed-Mode Signal Operation (5-V Input and Output Voltages With 3.3-V VCC)
- Support Unregulated Battery Operation Down to 2.7 V
- Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
- Ioff and Power-Up 3-State Support Hot Insertion
- Bus Hold on Data Inputs Eliminates the Need for External Pullup/Pulldown Resistors
- Latch-Up Performance Exceeds 500 mA Per JESD 17
- ESD Protection Exceeds JESD 22
- 2000-V Human-Body Model (A114-A)
- 200-V Machine Model (A115-A)
SN74LVTH240 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 |
| SN74LVTH240DBR | ACTIVE | -40 to 85 | 0.65 | 1ku | SSOP (DB) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240DBRE4 | ACTIVE | -40 to 85 | 0.65 | 1ku | SSOP (DB) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240DBRG4 | ACTIVE | -40 to 85 | 0.65 | 1ku | SSOP (DB) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240DW | ACTIVE | -40 to 85 | 0.75 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LVTH240DWE4 | ACTIVE | -40 to 85 | 0.75 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LVTH240DWG4 | ACTIVE | -40 to 85 | 0.75 | 1ku | SOIC (DW) | 20 | 25 | TUBE | |
| SN74LVTH240DWR | ACTIVE | -40 to 85 | 0.60 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240DWRE4 | ACTIVE | -40 to 85 | 0.60 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240DWRG4 | ACTIVE | -40 to 85 | 0.60 | 1ku | SOIC (DW) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240NSR | ACTIVE | -40 to 85 | 0.65 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240NSRE4 | ACTIVE | -40 to 85 | 0.65 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240NSRG4 | ACTIVE | -40 to 85 | 0.65 | 1ku | SO (NS) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240PW | ACTIVE | -40 to 85 | 0.75 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74LVTH240PWE4 | ACTIVE | -40 to 85 | 0.75 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74LVTH240PWG4 | ACTIVE | -40 to 85 | 0.75 | 1ku | TSSOP (PW) | 20 | 70 | TUBE | |
| SN74LVTH240PWR | ACTIVE | -40 to 85 | 0.60 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240PWRE4 | ACTIVE | -40 to 85 | 0.60 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R | |
| SN74LVTH240PWRG4 | ACTIVE | -40 to 85 | 0.60 | 1ku | TSSOP (PW) | 20 | 2000 | LARGE T&R |
SN74LVTH240 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 |
| SN74LVTH240DBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DBR | SN74LVTH240DBR |
| SN74LVTH240DBRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DBRE4 | SN74LVTH240DBRE4 |
| SN74LVTH240DBRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DBRG4 | SN74LVTH240DBRG4 |
| SN74LVTH240DW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DW | SN74LVTH240DW |
| SN74LVTH240DWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DWE4 | SN74LVTH240DWE4 |
| SN74LVTH240DWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DWG4 | SN74LVTH240DWG4 |
| SN74LVTH240DWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DWR | SN74LVTH240DWR |
| SN74LVTH240DWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DWRE4 | SN74LVTH240DWRE4 |
| SN74LVTH240DWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240DWRG4 | SN74LVTH240DWRG4 |
| SN74LVTH240NSR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240NSR | SN74LVTH240NSR |
| SN74LVTH240NSRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240NSRE4 | SN74LVTH240NSRE4 |
| SN74LVTH240NSRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240NSRG4 | SN74LVTH240NSRG4 |
| SN74LVTH240PW | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240PW | SN74LVTH240PW |
| SN74LVTH240PWE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240PWE4 | SN74LVTH240PWE4 |
| SN74LVTH240PWG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240PWG4 | SN74LVTH240PWG4 |
| SN74LVTH240PWR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240PWR | SN74LVTH240PWR |
| SN74LVTH240PWRE4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240PWRE4 | SN74LVTH240PWRE4 |
| SN74LVTH240PWRG4 | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-1-260C-UNLIM | SN74LVTH240PWRG4 | SN74LVTH240PWRG4 |
SN74LVTH240 应用技术支持与电子电路设计开发资源下载
- SN74LVTH240 数据资料 dataSheet 下载.PDF
- TI 德州仪器缓冲器、驱动器/收发器产品选型与价格 . xls
- CMOS 非缓冲反向器在振荡器电路中的使用 (PDF 951 KB)
- Semiconductor Packing Methodology (PDF 3005 KB)
- 逻辑产品选择指南 2006/2007 （修订版 Z）(4462KB)
- 标准线性和逻辑产品 5 分钟指南 (786KB)
- 了解和解释标准逻辑数据表
- LOGIC Pocket Data Book (PDF 6001 KB)
- HiRel Unitrode Power Management Brochure (PDF 206 KB)
- Logic Cross-Reference (PDF 2938 KB)