SN74LS590NSR 供应商
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SN74LS590NSR
品牌：TI 封装/批号：原厂原装/22+ -
SN74LS590NSR
品牌：TI(德州仪器) 封装/批号：SO-16/2022+
SN74LS590NSR 属性参数
- 标准包装：1
- 类别：集成电路 (IC)
- 家庭：逻辑 -计数器，除法器
- 系列：74LS
- 逻辑类型：二进制计数器
- 方向：上
- 元件数：1
- 每个元件的位元数：8
- 复位：异步
- 计时：-
- 计数速率：35MHz
- 触发器类型：正边沿
- 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：16-SOIC（0.209"，5.30mm 宽）
- 供应商设备封装：16-SO
- 包装：®
- 其它名称：296-29929-6
产品特性
- 8-Bit Counter with Register
- Parallel Register Outputs
- Choice of 3-State ('LS590) or Open-Collector ('LS591) Register Outputs
- Guaranteed Counter Frequency:DC to 20 MHz
产品概述
These devices each contain an 8-bit binary counter that feeds an 8-bit
storage register. The storage register has parallel outputs. Separate clocks
are provided for both the binary counter and storage register. The binary
counter features a direct clear input CCLR\ and a count enable input CCKEN\. For cascading, a ripple carry output RCO\ is provided.
Expansion is easily accomplished for two stages by connecting RCO of the first stage to CCKEN\ of the second stage. Cascading for
larger count chains can be accomplished by connecting RCO\ of each
stage to CCK of the following stage.
Both the counter and register clocks are positive-edge triggered. If the
user wishes to connect both clocks together, the counter state will always
be one count ahead of the register. Internal circuitry prevents clocking from
the clock enable.
SN74LS590NSR