M74HCT174TTR集成電路（IC）的觸發(fā)器規(guī)格書PDF中文資料

M74HCT174TTR屬于集成電路（IC）的觸發(fā)器。由意法半導(dǎo)體集團(tuán)制造生產(chǎn)的M74HCT174TTR觸發(fā)器觸發(fā)器是能夠存儲單個(gè)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(gè)輸入；一個(gè)或多個(gè)用于傳遞要存儲的數(shù)據(jù)，另一個(gè)用于指示存儲該數(shù)據(jù)的時(shí)間點(diǎn)。不同的觸發(fā)器類型，例如 D（延遲）、SR（置位復(fù)位）和 JK，對提供給其輸入的信號有不同的響應(yīng)，可用于實(shí)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(shí)鐘信號時(shí)才會改變。

DESCRIPTION

The M74HCT174 is an high speed CMOS HEX D-TYPE FLIP FLOP WITH CLEAR fabricated with silicon gate C2MOS technology.

Information signals applied to D inputs are transferred to the Q output on the positive going edge of the CLOCK (CK) pulse. When the CLEAR (CLR) input is held low, the Q outputs are held low independently of the other inputs.

All inputs are equipped with protection circuits against static discharge and transient excess voltage.

■ HIGH SPEED :

fMAX = 56MHz (TYP.) at VCC = 4.5V

■ LOW POWER DISSIPATION:

ICC =4μA(MAX.) at TA=25°C

■ COMPATIBLE WITH TTL OUTPUTS :

VIH = 2V (MIN.) VIL = 0.8V (MAX)

■ SYMMETRICAL OUTPUT IMPEDANCE:

|IOH| = IOL = 4mA (MIN)

■ BALANCED PROPAGATION DELAYS:

tPLH ? tPHL

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 174