TI,TI公司,TI代理商
TI(德州仪器)| TI产品型号搜索
专营TI元器件,强大的现货交付能力,解决您的采购难题
全流程提供TI现货供应链服务
当前位置:TI公司 > > TI芯片 >> SN75C189
SN75C189技术文档下载:
SN75C189技术文档产品手册下载
SN75C189 - 产品图解:
SN75C189-四路低功耗线路接收器
承诺原装正品
专营TI,真正优化您的供应链
TI产品 - SN75C189介绍
SN75C189 - 四路低功耗线路接收器

SN75C189是TI公司的一款无产品,SN75C189是四路低功耗线路接收器,本页介绍了SN75C189的产品说明、应用、特性等,并给出了与SN75C189相关的TI元器件型号供参考。

SN75C189 - 四路低功耗线路接收器 - 无 - RS-232收发器 - TI公司(Texas Instruments,德州仪器)

产品描述

The SN75C189 and SN75C189A are low-power, bipolar, quadruple line receivers that are used to interface data terminal equipment (DTE) with data circuit-terminating equipment (DCE). These devices have been designed to conform to TIA/EIA-232-F.

The SN75C189 has a 0.33-V typical hysteresis, compared with 0.97 V for the SN75C189A. Each receiver has provision for adjustment of the overall input threshold levels. This is achieved by choosing external series resistors and voltages to provide bias levels for the response-control pins. The output is in the high logic state if the input is open circuit or shorted to ground.

These devices have an on-chip filter that rejects input pulses of less than 1-us duration. An external capacitor can be connected from the control pins to ground to provide further input noise filtering for each receiver.

The SN75C189 and SN75C189A have been designed using low-power techniques in a bipolar technology. In most applications, these receivers interface to single inputs of peripheral devices such as UARTs, ACEs, or microprocessors. By using sampling, such peripheral devices usually are insensitive to the transition times of the input signals. If this is not the case, or for other uses, it is recommended that the SN75C189 and SN75C189A outputs be buffered by single Schmitt input gates or single gates of the HCMOS, ALS, or 74F logic families.

The SN75C189 and SN75C189A are characterized for operation from 0°C to 70°C.

产品特性

  • Meet or Exceed the Requirements of TIA/EIA-232-F and ITU Recommendation V.28
  • Low Supply Current...420 uA Typ
  • Preset On-Chip Input Noise Filter
  • Built-in Input Hysteresis
  • Response and Threshold Control Inputs
  • Push-Pull Outputs
  • Functionally Interchangeable and Pin-to-Pin Compatible With Texas Instruments SN75189/SN75189A and Motorola MC1489/MC1489A
  • Package Options Include Plastic Small-Outline (D) and Shrink Small-Outline (DB) Packages, and Standard Plastic (N) DIP

下面可能是您感兴趣的TI公司无元器件
  • TPS2062-Q1 - 汽车类双路 1A 限流配电开关
  • CD54HCT193 - 高速 CMOS 逻辑可预设置的同步 4 位二进制加/减计数器
  • LM330-N - 3 端子正电压稳压器
  • LM317A - LM117/LM317A/LM317 3 端子可调稳压器
  • SN74AC08-EP - 增强型产品四路 2 输入正与门
  • TPA6204A1 - TPA6204A1:1.7W 单声道全差动音频功率放大器
  • DRV8860 - 具有串行接口的八路低侧驱动器
  • SN65LBC174 - 四路低功耗差动线路驱动器
  • BQ27441-G1 - 电池组端 Impedance Track 电量监测计
  • LMT89 - LMT89 - 2.4V、10μA、SC70、DSBGA 温度传感器
  • 节约时间成本,提高采购效率,TI官网授权代理
    TI公司|TI德州仪器|德州仪器TI公司代理商|TI芯片代理商
    TI公司产品现货专家,订购TI公司产品不限最低起订量,TI产品大陆现货即时发货,香港库存3-5天发货,海外库存7-10天发货
    寻找全球TI代理商现货货源 - TI公司(德州仪器)电子元件在线订购