同步4位十年和二进制计数器 SYNCHRONOUS 4-BIT DECADE AND BINARY COUNTERS
description
These synchronous, presettable, 4-bit decade and binary counters feature an internal carry look-ahead circuitry for application in high-speed counting designs. The SN54ALS162B is a 4-bit decade counter. The ’ALS161B, ’ALS163B, ’AS161, and ’AS163 devices are 4-bit binary counters. Synchronous operation is provided by having all flip-flops clocked simultaneously so that the outputs change coincidentally with each other when instructed by the count-enable ENP, ENT inputs and internal gating. This mode of operation eliminates the output counting spikes normally associated with asynchronous ripple-clock counters. A buffered clock CLK input triggers the four flip-flops on the rising positive-going edge of the clock input waveform.
• Internal Look-Ahead Circuitry for Fast Counting
• Carry Output for n-Bit Cascading
• Synchronous Counting
• Synchronously Programmable
• Package Options Include Plastic
Small-Outline D and Shrink Small-Outline
DB Packages, Ceramic Chip Carriers FK,
Standard Plastic N and Ceramic J DIPs
型号 | 品牌 | 下载 |
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SNJ54ALS161BFK | TI 德州仪器 | 下载 |
SNJ54CBT16209WD | TI 德州仪器 | 下载 |
SNJ54CBT16212AWD | TI 德州仪器 | 下载 |
SNJ54CBT3383W | TI 德州仪器 | 下载 |
SNJ54CBT3383JT | TI 德州仪器 | 下载 |
SNJ54S181W | TI 德州仪器 | 下载 |
SNJ54S182FK | TI 德州仪器 | 下载 |
SNJ54S182J | TI 德州仪器 | 下载 |
SNJ54LS181J | TI 德州仪器 | 下载 |
SNJ54S181J | TI 德州仪器 | 下载 |
SNJ54LS138J | TI 德州仪器 | 下载 |