SN74S257N 供应商
SN74S257N 属性参数
- 标准包装：25
- 类别：集成电路 (IC)
- 家庭：逻辑 - 信号开关，多路复用器，解码器
- 系列：74S
- 类型：数据选择器/多路复用器
- 电路：4 x 2:1
- 独立电路：1
- 输出电流高，低：6.5mA，20mA
- 电压电源：单电源
- 电源电压：4.75 V ~ 5.25 V
- 工作温度：0°C ~ 70°C
- 安装类型：通孔
- 封装/外壳：16-DIP（0.300"，7.62mm）
- 供应商设备封装：16-PDIP
- 包装：管件
产品特性
- Three-State Outputs Interface Directly with System Bus
- 'LS257B and 'LS258B Offer Three Times the Sink-Current Capability of the Original 'LS257 and 'LS258
- Same Pin Assignments as SN54LS157, SN74LS157, SN54S157, SN74S157, and SN54LS158, SN74LS158, SN54S158, SN74S158
- Provides Bus Interface from Multiple Sources in High-Performance Systems
产品概述
These devices are designed to multiplex signals from four-bit data sources
to four-output data lines in bus-organized systems. The 3-state outputs will
not load the data lines when the output control pin (G\) is at a
high-logic level.
Series 54LS and 54S are characterized for operation over the full military
temperature range of -55°C to 125°C; Series 74LS and 74S are characterized
for operation from 0°C to 70°C.
SN74S257N