SN74LS174NSR.A中文资料德州仪器数据手册PDF规格书

“174, 'LS174, ‘S174 Contain Six Flip-Flops

with Single-Rail Outputs

‘175, 'L.S175, ‘S175 Contain Four Flip-Flops

with Double-Rail Outputs

Three Performance Ranges Offered: See

Table Lower Right

Buffered Clock and Direct Clear Inputs

Individual Data Input to Each Flip-Flop

Applications include:

Buffer/Storage Registers

Shift Registers

Pattern Generators

description

These monolithic, positive-edge-triggered flip-flops

utilize TTL circuitry to implement D-type flip-flop logic.

All have a direct clear input, and the ‘175, ‘LS175, and

$175 feature complementary outputs from each flip-

flop.

Information at the D inputs meeting the setup time

requirements is transferred to the Q outputs on the

positive-going edge of the clock pulse. Clock triggering

occurs at a particular voltage level and is not directly

related to the transition time of the positive-going pulse.

When the clock input is at either the high or low level,

the D input signal has no effect at the output.

These circuits are fully compatible for use with most

TTL circuits.