MC74HC374A集成電路（IC）的觸發(fā)器規(guī)格書(shū)PDF中文資料

MC74HC374A屬于集成電路（IC）的觸發(fā)器。由安森美半導(dǎo)體公司制造生產(chǎn)的MC74HC374A觸發(fā)器觸發(fā)器是能夠存儲(chǔ)單個(gè)邏輯狀態(tài)或信息“位”的基本數(shù)字存儲(chǔ)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(chǔ)的數(shù)據(jù)，另一個(gè)用于指示存儲(chǔ)該數(shù)據(jù)的時(shí)間點(diǎn)。不同的觸發(fā)器類(lèi)型，例如 D（延遲）、SR（置位復(fù)位）和 JK，對(duì)提供給其輸入的信號(hào)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(hào)時(shí)才會(huì)改變。

Octal 3-State Non-Inverting D Flip-Flop

High?Performance Silicon?Gate CMOS

The MC74HC374A is identical in pinout to the LS374. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs.

Data meeting the setup time is clocked to the outputs with the rising edge of the clock. The Output Enable input does not affect the states of the flip?flops, but when Output Enable is high, the outputs are forced to the high?impedance state; thus, data may be stored even when the outputs are not enabled.

The HC374A is identical in function to the HC574A which has the input pins on the opposite side of the package from the output. This device is similar in function to the HC534A which has inverting outputs.

Features

? Output Drive Capability: 15 LSTTL Loads

? Outputs Directly Interface to CMOS, NMOS, and TTL

? Operating Voltage Range: 2.0 to 6.0 V

? Low Input Current: 1.0 μA

? High Noise Immunity Characteristic of CMOS Devices

? In Compliance with the Requirements Defined by JEDEC Standard No. 7 A

? Chip Complexity: 266 FETs or 66.5 Equivalent Gates

? NLV Prefix for Automotive and Other Applications Requiring Unique Site and Control Change Requirements; AEC?Q100 Qualified and PPAP Capable

? These Devices are Pb?Free and are RoHS Compliant