WMSIC Electronic Components

XBLW SN74LS192N

ModelSN74LS192N(XBLW)
PackageDIP-16
BrandXBLW
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XBLW SN74LS192N(XBLW)
Type
XBLW
Minimum package
25 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XBLW
Electronic Component
SN74LS192N(XBLW)
Electronic Component
1
Package
DIP-16
Electronic Component
Counter / Divider
Electronic Component
1.501g
Electronic Component
1
Electronic Component
Electronic Component
Electronic Component
1
Features
positions;; Synchronous
Electronic Component
BM0265609065
Reset
Electronic Component
Operating Temperature
20℃~+85℃
Operating Voltage
2V~6V
Electronic Component
40MHz

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SN74LS192N(芯伯乐XBLW)同步可逆十进制计数器产品概述

一、产品核心定位与基本特性

SN74LS192N是芯伯乐(XBLW)推出的同步可逆4位十进制计数器,属于LS系列TTL逻辑器件,采用DIP-16双列直插封装,适配传统电路焊接、调试场景。该器件核心支持向上/向下双向计数,计数逻辑以同步触发为主(仅异步复位例外),可满足数字系统中需可逆计数的需求,如频率累计、时序计数、工业过程计数等。

二、关键电气与性能参数

结合产品规格与应用特性,核心参数如下:

  1. 计数功能:4位十进制(0000~1001循环),同步计数(时钟触发时立即更新输出,无异步毛刺);
  2. 触发与控制:上升沿触发计数时钟(CLK_UP/CLK_DOWN),异步高有效复位(CLR),异步低有效预置(LOAD);
  3. 电气参数:工作电压2V~6V(兼容5V TTL标准,宽电压适应),计数速率40MHz(中等频率场景稳定工作),传播延迟tpd=19ns(级联时延迟可控);
  4. 环境参数:工作温度-20℃~+85℃(工业级温度范围,适配户外/车间环境),单芯片集成(元件数1,简化电路设计)。

三、封装与引脚功能说明

采用DIP-16标准双列直插封装,引脚从1脚顺时针排列定义如下:

  • 1脚:LOAD(预置输入,低电平有效,触发时将D0-D3数据预置到输出Q0-Q3);
  • 2脚:CLK_UP(向上计数时钟,上升沿触发计数增加);
  • 3脚:CLK_DOWN(向下计数时钟,上升沿触发计数减少);
  • 47脚:`D0D3`(预置数据输入,4位二进制编码十进制数);
  • 8脚:GND(电源地);
  • 9脚:CLR(异步清零,高电平有效,直接将输出置为0000);
  • 1013脚:`Q3Q0`(计数输出,Q3为最高位,十进制9对应1001);
  • 14脚:TC_DOWN(向下计数借位输出,低电平有效,计数到0000时触发);
  • 15脚:TC_UP(向上计数进位输出,低电平有效,计数到1001时触发);
  • 16脚:VCC(电源正,建议5V供电)。

四、典型应用场景

  1. 数字频率计计数单元:配合前置分频器,可实现≤40MHz中低频信号的频率累计,十进制输出适配直观显示(如LED数码管);
  2. 工业过程累计计数:如生产线产品数量计数、温度/压力传感器脉冲累计(适配-20~+85℃工业环境);
  3. 简单时序逻辑电路:如脉冲宽度测量的计数模块、定时电路的时间累计(同步计数无毛刺,输出稳定);
  4. 电子秤重量计数:十进制计数适配公斤/克的重量显示,避免二进制转换的额外电路,简化设计。

五、应用注意事项

  1. 优先级逻辑:CLR(高有效)优先级最高,其次是LOAD(低有效),最后是计数时钟(无触发时保持当前值);
  2. 时钟信号要求:CLK_UP/CLK_DOWN需采用上升沿触发,避免过冲(建议串接100Ω电阻限流);
  3. 电源稳定性:工作电压2~6V,需确保VCC与GND之间纹波≤50mV,避免干扰计数;
  4. 级联应用:多片级联时,前级TC_UP(进位)接后级CLK_UP,前级TC_DOWN(借位)接后级CLK_DOWN,总延迟为片数×19ns,需预留时序裕量。

该器件凭借同步计数的稳定性、宽电压范围与工业级温度特性,成为传统数字电路可逆计数场景的常用选择,适配手工焊接与批量生产需求。

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