CD74HCT574QPWREP屬于集成電路（IC）的觸發(fā)器。由美國德州儀器公司制造生產(chǎn)的CD74HCT574QPWREP觸發(fā)器觸發(fā)器是能夠存儲單個邏輯狀態(tài)或信息“位”的基本數(shù)字存儲器件。這些器件至少有兩個輸入；一個或多個用于傳遞要存儲的數(shù)據(jù)，另一個用于指示存儲該數(shù)據(jù)的時間點。不同的觸發(fā)器類型，例如 D（延遲）、SR（置位復位）和 JK，對提供給其輸入的信號有不同的響應(yīng)，可用于實現(xiàn)不同的邏輯功能。這些器件與鎖存器的不同之處在于它們是邊緣敏感器件，其保持的邏輯狀態(tài)僅在接收到有效時鐘信號時才會改變。

Controlled Baseline

? One Assembly/Test Site, One Fabrication

Site

Extended Temperature Performance of

?40°C to 125°C

Enhanced Diminishing Manufacturing

Sources (DMS) Support

Enhanced Product Change Notification

Qualification Pedigree?

Buffered Inputs

Common 3-State Output-Enable Control

3-State Outputs

Bus-Line Driving Capability

Typical Propagation Delay (Clock to Q):

15 ns at VCC = 5 V, CL = 15 pF, TA = 25
C

Fanout (Over Temperature Range)

? Standard Outputs . . . 10 LSTTL Loads

? Bus Driver Outputs . . . 15 LSTTL Loads

Balanced Propagation Delay and Transition

Times

Significant Power Reduction Compared to

LSTTL Logic ICs

VCC Voltage = 4.5 V to 5.5 V

Direct LSTTL Input Logic Compatibility,

VIL = 0.8 V (Max), VIH = 2 V (Min)

CMOS Input Compatibility, Il
1
A at VOL,

VOH