SN74HC240集成電路（IC）的緩沖器驅(qū)動器接收器收發(fā)器規(guī)格書PDF中文資料

SN74HC240屬于集成電路（IC）的緩沖器驅(qū)動器接收器收發(fā)器。由德州儀器制造生產(chǎn)的SN74HC240緩沖器，驅(qū)動器，接收器，收發(fā)器邏輯緩沖器、驅(qū)動器、接收器和收發(fā)器允許隔離對某個電路的邏輯信號的訪問，以用于另一電路。緩沖器將其輸入信號（不變或反相）傳遞到其輸出，并可能用于清除弱信號或驅(qū)動負(fù)載。在布爾邏輯仿真器中，緩沖器主要用于增加傳播延遲。邏輯接收器和收發(fā)器允許在數(shù)據(jù)總線之間進(jìn)行隔離通信。

1 Features

? Wide operating voltage range of 2V to 6V

? High-current outputs drive up to 15

LSTTL loads

? Low power consumption, 80μA max ICC

? Typical tpd = 9ns

? ±6mA output drive at 5V

? Low input current of 1μA max

? 3-state outputs drive bus lines or buffer memory

address registers

2 Description

These octal buffers and line drivers are designed

specifically to improve both the performance and

density of 3-state memory address drivers, clock

drivers, and bus-oriented receivers and transmitters.

The ’HC240 devices are organized as two 4-bit

buffers/drivers with separate output-enable (OE)

inputs. When OE is low, the device passes inverted

data from the A inputs to the Y outputs. When OE is

high, the outputs are in the high-impedance state.