SN74LS251N (TEXAS INSTRUMENTS)
Data Selector / Multiplexer, 3-State Outputs, LS Family, 1 Channels, 8:1, 4.75 V to 5.25 V, DIP-16
The SN74LS251N is a 8-to-1 Data Selector/Multiplexer with 3-state outputs. It contains full on-chip binary decoding to select one-of-eight data sources and feature a strobe-controlled three-state output. The strobe must be at a low logic level to enable these devices. The three-state outputs permit a number of outputs to be connected to a common bus. When the strobe input is high, both outputs are in a high-impedance state in which both the upper and lower transistors of each totem-pole output are off and the output neither drives nor loads the bus significantly. When the strobe is low, the outputs are activated and operate as standard TTL totem-pole outputs. To minimize the possibility that two outputs will attempt to take a common bus to opposite logic levels, the output control circuitry is designed so that the average OD time is shorter than the average output enable time.
- Three state outputs interface directly with system bus
- Perform parallel-to-serial conversion
- Permit multiplexing from N-lines to one line
- Complementary outputs provide true and inverted data
- Fully compatible with most TTL circuits
Области применения
Промышленное, Связь и Сеть
Базовый Номер / Семейство Логики:
74LS251
Базовый Номер Микросхемы Логики:
74251
Количество Выводов:
16вывод(-ов)
Количество Каналов:
1канал(-ов)
Конфигурация Линии:
8:1
Линейка Продукции:
-
Максимальная Рабочая Температура:
70°C
Максимальное Напряжение Питания:
5.25В
Минимальная Рабочая Температура:
0°C
Минимальное Напряжение Питания:
4.75В
Семейство Логической Микросхемы:
74LS
Соответствует Фталатам RoHS:
Да
Стандарты Автомобильной Промышленности:
-
Стиль Корпуса Микросхемы Логики:
DIP
Тип Логики:
Селектор Данных / Мультиплексор
SVHC (Особо Опасные Вещества):
No SVHC (27-Jun-2018)
RoHS статус:
Да