HCT/SC373

This HCTSC373HCT/SC533/SC363 family of 8-bit latcheslflip flops feature 3-state operation and are designed for use in high speed, bus oriented systems. The octal latches are transparent D-type latches, meaning-that while the enable is high, the outputs will follow the data D-inputs. When the enable is taken law, the outputs will be latched at the level of the data that was setup. The octal flip flips are edge-triggered D-type flip flops. On the positive transition of the clock, the outputs will be set to the last state that was setup at the D-inputs. Schmidtt Trigger buffered inputs at the enable/clock lines simplify system design through improved noise rejection capability of thehysteresis. A buffered output control input can be used to place the outputs in either an active state or in a high impedance state. While in the high impedance state, the outputs neither load nor drive the bus lines.

The features of HCTSC373HCT/SC533/SC363 can be summarized as (1)Pin and function compatible to 54/74 LS equivalent circuits; (2)typical operating supply current: 10A; (3)MIL STD 883b soreening/leadless chip carrier available; (4)fast propagation delay times; (5)fan out of 30 LSTTL loads; (6)fully TTL and CMOS compatible; (7)-40°C to +85°C operating temperature range; (8)capable of operating over 3-volt to 6-volt range; (9)high speed silicon-gate CMOS technology.

The absolute maximum ratings of HCTSC373HCT/SC533/SC363 are (1)supply voitage, VCC:-0.5V to +70V; (2)input voltage, Vi: -0.3V to Vgg +0.3V; (3)short circuit output current, (not more than 1 output for more than 1 second): ±100mA; (4)operating temperature range, TA 74HCT, 74SC (commercial) -40°C to 85°C/54HCT (military):-55°C to +125°C; (5)storage temperature, Ts -65°C to +150°C; (6)power dissipation, PD: 500mW.