SN74LS645NSR 供应商
-
SN74LS645NSR
品牌：TI 封装/批号：原厂原装/22+
SN74LS645NSR 属性参数
- 标准包装：2,000
- 类别：集成电路 (IC)
- 家庭：逻辑 - 缓冲器，驱动器，接收器，收发器
- 系列：74LS
- 逻辑类型：收发器，非反相
- 元件数：1
- 每个元件的位元数：8
- 输出电流高，低：15mA，24mA
- 电源电压：4.75 V ~ 5.25 V
- 工作温度：0°C ~ 70°C
- 安装类型：表面贴装
- 封装/外壳：20-SOIC（0.209"，5.30mm 宽）
- 供应商设备封装：20-SO
- 包装：带卷 (TR)
产品特性
- SN74LS64X-1 Versions Rated at IOL of 48 mA
- Bi-directional Bus Transceivers in High-Density 20-Pin Packages
- Hysteresis at Bus Inputs Improves Noise Margins
- Choice of True or Inverting Logic
- Choice of 3-State or Open-collector Outputs
产品概述
These octal bus transceivers are designed for asynchronous two-way communication between data buses. The devices transmit data from the A bus to the B bus or from the B bus to the A bus depending upon the level at the direction control (DIR) input. The enable input (G) can be used to disable the device so the buses are effectively isolated.The -1 versions of the SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are identical to the standard versions except that the recommended maximum IOL is increased to 48 milliamperes. There are no -1 versions of the SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645.The SN54LS640 thru SN54LS642, SN54LS644, and SN54LS645 are characterized for operation over the full military tempearture range of –55°C to 125°C. The SN74LS640 thru SN74LS642, SN74LS644, and SN74LS645 are characterized for operation from 0°C to 70°C.