The HC374, HCT374, HC574, and HCT574 are octal D-type flip-flops with 3-state outputs and the capability to drive 15 LSTTL loads. The eight edge-triggered flip-flops enter data into their registers on the LOW to HIGH transition of clock (CP). The output enable (OE) controls the 3-state outputs and is independent of the register operation. When OE is HIGH\, the outputs are in the high-impedance state. The 374 and 574 are identical in function and differ only in their pinout arrangements.
Data sheet acquired from Harris Semiconductor
|Part number||Order||Technology Family||VCC (Min) (V)||VCC (Max) (V)||Bits (#)||Voltage (Nom) (V)||F @ nom voltage (Max) (MHz)||ICC @ nom voltage (Max) (mA)||tpd @ nom Voltage (Max) (ns)||IOL (Max) (mA)||IOH (Max) (mA)||3-state output||Rating||Operating temperature range (C)|
||HCT||4.5||5.5||8||5||25||0.08||41||6||-6||Yes||Catalog||-55 to 125|
|CD54HCT574||Samples not available||HCT||4.5||5.5||8||5||25||0.08||41||6||-6||Yes||Military||-55 to 125|
|CD74HCT574-EP||Samples not available||HCT||4.5||5.5||8||5||25||0.08||41||6||-6||Yes||HiRel Enhanced Product||-40 to 125|
|CD74HCT574-Q1||Samples not available||HCT||4.5||5.5||8||5||25||0.08||41||6||-6||Yes||Automotive||-40 to 125|