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数量 | 价钱 (含税) |
---|---|
1+ | CNY7.470 (CNY8.4411) |
10+ | CNY7.430 (CNY8.3959) |
50+ | CNY7.380 (CNY8.3394) |
100+ | CNY7.330 (CNY8.2829) |
250+ | CNY7.290 (CNY8.2377) |
500+ | CNY7.240 (CNY8.1812) |
1000+ | CNY7.190 (CNY8.1247) |
2500+ | CNY7.130 (CNY8.0569) |
产品信息
产品概述
The SN74LS161AN is a 4-bit Synchronous Binary Counter features an internal carry look-ahead for application in high-speed counting designs. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincident with each other when so instructed by the count-enable inputs and internal gating. This mode of operation eliminates the output counting spikes that are normally associated with asynchronous (ripple clock) counters, however counting spikes may occur on the (RCO) ripple carry output. A buffered clock input triggers the four flip-flops on the rising edge of the clock input waveform. This counter is fully programmable, that is, the outputs may be preset to either level. As presetting is synchronous, setting up a low level at the load input disables the counter and causes the outputs to agree with the setup data after the next clock pulse regardless of the levels of the enable inputs.
- Internal look-ahead for fast counting
- Carry output for n-bit cascading
- Synchronous counting
- Synchronously programmable
- Load control line
- Diode-clamped inputs
技术规格
74LS161
32MHz
DIP
16引脚
5.25V
74161
70°C
-
二进制
15
DIP
4.75V
74LS
0°C
-
No SVHC (27-Jun-2018)
法律与环境
进行最后一道重要生产流程所在的地区原产地:Malaysia
进行最后一道重要生产流程所在的地区
RoHS
RoHS
产品合规证书