SN74LVC244A-Q1 具有三态输出的汽车类八路缓冲器/驱动器
SN74LVC244A-Q1 描述
This octal buffer/line driver is operational at 1.5-V to 3.6-V VCC, but is designed specifically for 1.65-V to 3.6-V VCC operation.
The SN74LVC244A is organized as two 4-bit line drivers with separate output-enable (OE) inputs. When OE is low, the device passes data from the A inputs to the Y outputs. When OE is high, the outputs are in the high-impedance state.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of this device as a translator in a mixed 3.3-V/5-V system environment.
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
| SN74LVC244A-Q1 | |
| Voltage Nodes(V) | 3.3,2.7,2.5,1.8 |
| Vcc range(V) | 1.65 to 3.6 |
| Logic | True |
| Input Level | TTL/CMOS |
| Output Level | LVTTL |
| Output Drive(mA) | -24/24 |
| No. of Gates | 8 |
| No. of Outputs | 8 |
| tpd max(ns) | 5.9 |
| Static Current | 0.01 |
| Rating | Automotive |
| Technology Family | LVC |
SN74LVC244A-Q1 特性
- Qualified for Automotive Applications
- Operates From 1.65 V to 3.6 V
- Inputs Accept Voltages to 5.5 V
- Specified From –40°C to 85°C and –40°C to 125°C
- Max tpd of 5.9 ns at 3.3 V
- Typical VOLP (Output Ground Bounce) <0.8 V at VCC = 3.3 V, TA = 25°C
- Typical VOHV (Output VOH Undershoot) >2 V at VCC = 3.3 V, TA = 25°C
- Supports Mixed-Mode Signal Operation on All Ports (5-V Input/Output Voltage With 3.3-V VCC)
- Ioff Supports Partial-Power-Down Mode Operation
- 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)
SN74LVC244A-Q1 应用技术支持与电子电路设计开发资源下载
- SN74LVC244A-Q1 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)
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- 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)
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- Logic Cross-Reference (PDF 2938 KB)
