MC14520B: Dual BCD Up Counter

The MC14520B dual BCD counter and the MC14520B dual binarycounter are constructed with MOS P-channel and N-channel enhancement mode devices in a single monolithic structure. Each consists of two identical, independent, internally synchronous 4-stage counters. The counter stages are type D flip-flops, with interchangeable Clock and Enable lines for incrementing on either the positive-going or negative-going transition as required when cascading multiple stages. Each counter can be cleared by applying a high level on the Reset line. In addition, the MC14520B will count out of all undefined states within two clock periods. These complementary MOS up counters find primary use in multi-stage synchronous or ripple counting applications requiring low power dissipation and/or high noise immunity.

技术特性
  • Diode Protection on All Inputs
  • Supply Voltage Range = 3.0 Vdc to 18 Vdc
  • Internally Synchronous for High Internal and External Speeds
  • Logic Edge-Clocked Design Incremented on Positive Transition of Clock or Negative Transition on Enable
  • Capable of Driving Two Low-power TTL Loads or One Low-power Schottky TTL Load Over the Rated Temperature Range
封装图 MARKING DIAGRAM

MC14520B 封装图

订购信息 Ordering Information
产品 状况 Compliance 具体说明 封装 MSL* 容器 预算价格 (1千个数量的单价)
类型 外形 类型 数量
MC14520BCPG Lifetime
Pb-free
Halide free
Dual BCD Up Counter PDIP-16 648-08 Tube 500 $0.3928
MC14520BDWG Active
Pb-free
Halide free
Dual BCD Up Counter SOIC-16W 751G-03 3 Tube 47 $0.3467
MC14520BDWR2G Active
Pb-free
Halide free
Dual BCD Up Counter SOIC-16W 751G-03 3 Tape and Reel 1000 $0.3467
数据资料DataSheet下载
概述 文档编号/大小 版本
Dual BCD Up Counter MC14520B-D(417.0kB) 1