The 74HC244D, 653 is a 8-bit Buffer/Line Driver with non-inverting 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes that enable the use of current limiting resistors to interface inputs to voltages in excess of VCC.
• Input CMOS level
• Octal bus interface
• Complies with JEDEC standard no. 7A
Технические параметры
| Серия | 74HC |
| Технология | cmos |
| Тип | buffer/line driver |
| Полярность | неинвертирующий |
| Число элементов | 2 |
| Количество Бит на Элемент | 4 |
| Тип выхода | push-pull(3-state) |
| Выходной ток высокого уровня, IOH (мА) | -7.8 |
| Выходной ток низкого уровня, IOL (мА) | 7.8 |
| Напряжение питания, В | 2…6 |
| Рабочая температура,C | -40…+125 |
| Корпус | soic-20(0.295 inch) |
| Вес, г | 0.9 |


