SN74LS90N, Decade / Binary Counter, LS Family, 42 MHz, 4.75 V to 5.25 V, DIP-14

PartNumber: SN74LS90N
Ном. номер: 8041987204
Производитель: Texas Instruments
SN74LS90N, Decade / Binary Counter ...
Доступно на заказ 261 шт. Отгрузка со склада в Москве 6 недель.
190 × = 190
от 10 шт. — 160 руб.
от 100 шт. — 126 руб.

Описание

The SN74LS90N is a Decade Counter contains four master-slave flip-flops and additional gating to provide a divide-by-two counter and a three-stage binary counter for which the count cycle length is divide-by-five for the '90A and 'LS90, divide-by-six for the '92A and 'LS92 and the divide-by eight for the '93A and 'LS93. All of these counters have a gated zero reset and the '90A and 'LS90 also have gated set-to-nine inputs for use in BCD nine's complement applications. To use their maximum count length (decade, divide-by-twelve or four-bit binary) of these counters, the CKB input is connected to the QA output. The input count pulses are applied to CKA input and the outputs are as described in the appropriate function table. A symmetrical divide-by-ten count can be obtained from the '90A or 'LS90 counters by connecting the QD output to the CKA input and applying the input count to the CKB input which gives a divide-by-ten square wave at output QA.

• TTL input compatible
• CMOS output

Полупроводники - Микросхемы\Логические\Счетчики
Код: 1470790

Технические параметры

Тип Счетчика
Десятичный
Тактовая Частота
42МГц
Максимальный Счет
9
Стиль Корпуса Микросхемы Логики
DIP
Количество Выводов
14вывод(-ов)
Минимальное Напряжение Питания
4.75В
Максимальное Напряжение Питания
5.25В
Минимальная Рабочая Температура
0°C
Максимальная Рабочая Температура
70°C
Упаковка
Поштучно