华端智慧电子
The HD74LS374, 8-bit register features totem-pole three-state outputs designed specifically for driving highlycapacitive or relatively low-impedance loads. The high-impedance third state and increased high-logic-level drive provide this register with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pull-up components. They are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. The eight flip-flops are edge-triggered D-type flipflops. On the positive transition the clock, the Q outputs will be set to the logic states that ware setup at the D inputs.
Ordering Information
Part Name Package Type Package Code (Previous Code) Package Abbreviation Taping Abbreviation (Quantity) HD74LS374P DILP-20 pin PRDP0020AC-B (DP-20NEV) P — HD74LS374FPEL SOP-20 pin (JEITA) PRSP0020DD-B (FP-20DAV) FP EL (2,000 pcs/reel) HD74LS374RPEL SOP-20 pin (JEDEC) PRSP0020DC-A (FP-20DBV) RP EL (1,000 pcs/reel) Pin Arrangement Absolute Maximum Ratings Item Symbol Ratings Unit Supply voltage VCC 7 V Input voltage VIN 7 V Power dissipation PT 400 mW Storage temperature Tstg –65 to +150 °C