12位异步二进制计数器 12-BIT ASYNCHRONOUS BINARY COUNTERS
The LV4040A devices are 12-bit asynchronous binary counters with the outputs of all stages available externally. A high level at the clear CLR input asynchronously clears the counter and resets all outputs low. The count is advanced on a high-to-low transition at the clock CLK input. Applications include time-delay circuits, counter controls, and frequency-dividing circuits.
These devices are fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the devices when they are powered down.
型号/品牌 | 代替类型 | 替代型号对比 |
---|---|---|
SN74LV4040ADR TI 德州仪器 | 当前型号 | 当前型号 |
SN74LV4040AD 德州仪器 | 完全替代 | SN74LV4040ADR和SN74LV4040AD的区别 |
SN74LV4040ADG4 德州仪器 | 完全替代 | SN74LV4040ADR和SN74LV4040ADG4的区别 |
SN74LV4040ADRG4 德州仪器 | 完全替代 | SN74LV4040ADR和SN74LV4040ADRG4的区别 |