SN54196 - 50/30/100Mhz 可预设十进制或二进制计数器/锁存器

SN54196是TI德州仪器公司的一款计数器/算术/奇偶校验功能产品，SN54196是50/30/100Mhz 可预设十进制或二进制计数器/锁存器，本站介绍了SN54196的封装应用图解、特点和优点、功能等，并给出了与SN54196相关的TI元器件型号供参考。

SN54196 - 50/30/100Mhz 可预设十进制或二进制计数器/锁存器 - 计数器/算术/奇偶校验功能 - 特殊逻辑 - 德州仪器

产品描述

These high-speed monolithic counters consist of four d-c coupled, master-slave flip-flops, which are internally interconnected to provide either a divide-by-two and a divide-by-five counter (’196, ’LS196, ’S196) or a divide-by-two and a divide-by-eight counter (’197, ’LS197, ’S197). These four counters are fully programmable; that is, the outputs may be preset to any state by placing a low on the count/load input and entering the desired data at the data inputs. The outputs will change to agree with the data inputs independent of the state of the clocks.

During the count operation, transfer of information to the outputs occurs on the negative-going edge of the clock pulse. These counters feature a direct clear which when taken low sets all outputs low regardless of the states of the clocks.

These counters may also be used as 4-bit latches by using the count/load input as the strobe and entering data at the data inputs. The outputs will directly follow the data inputs when the count/load is low, but will remain unchanged when the count/load is high and the clock inputs are inactive.

All inputs are diode-clamped to minimize transmission-line effects and simplify system design. These circuits are compatible with most TTL logic families. Series 54, 54LS, and 54S circuits are characterized for operation over the full military temperature range of -55°C to 125°C; Series 74, 74LS, and 74S circuits are characterized for operation from 0°C to 70°C.

产品特性

Performs BCD, Bi-Quinary, or Binary Counting
Fully Programmable
Fully Independent Clear Input
Input Clamping Diodes Simplify System Design
Output QA Maintains Full Fan-out Capability In Addition to Driving Clock-2 Input

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