计数器由一组触发器组成，这些触发器是在数字逻辑和计算中存储特定事件或过程发生次数的设备。
| 图片 | 型号 | 描述 | 制造商 | 系列 | RFQ |
|---|---|---|---|---|---|
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Mfr.#: DM74LS393M OMO.#: OMO-DM74LS393M |
Counter ICs Dl 4-Bit Dec Counter | ON Semiconductor / Fairchild | None | |
 |
Mfr.#: SN74F163ADBR OMO.#: OMO-SN74F163ADBR |
Counter ICs Synchronous 4-Bit Binary Counter | Texas Instruments | None | |
 |
Mfr.#: 74HCT4040D/AUJ OMO.#: OMO-74HCT4040D-AUJ |
Counter ICs 12-stage binary ripple counter | Nexperia | None | |
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Mfr.#: CD74HC190PWT OMO.#: OMO-CD74HC190PWT |
Counter ICs Hi-Sp CMOS Logic Pre Sync BCD Dec Up/Dwn | Texas Instruments | CD74HC190 |