| 制造商 | 部件名 | 数据表 | 功能描述 |
 National Semiconductor ... |
MM54HC190
|
202Kb / 8P |
MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control
|
|
MM54HC190J
|
202Kb / 8P |
MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control
|
|
MM54HC191
|
202Kb / 8P |
MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control
|
|
MM54HC191J
|
202Kb / 8P |
MM54HC190/MM74HC190 Synchronous Decade Up/Down Counters with Mode Control MM54HC191/MM74HC191 Synchronous Binary Up/Down Counters with Mode Control
|
|
MM54HC192
|
180Kb / 8P |
Synchronous Decade Up/Down Counters Synchronous Binary Up/Down Counters
|