74ACT273 - STMicroelectronics

74ACT273 OCTAL D-TYPE FLIP-FLOP

The ACT273 is a high-speed CMOS OCTAL D-TYPE FLIP FLOP WITH CLEAR fabricated with sub-micron silicon gate and double-layer metal wiring C2MOS technology. It is ideal for low power applications mantaining high speed operation similar to equivalent Bipolar Schottky TTL. Information signals applied to D inputs are transfered to the Q output on the positive goi.

Features

of the clock pulse. When the CLEAR input is held low, the Q outputs are held low independentely of the other inputs . The device is designed to interface directly High Speed CMOS systems with TTL, NMOS and CMOS output voltage levels. All inputs and outputs are equipped with protection circuits against static discharge, giving them 2KV ESD immunity and transient excess voltage. PIN CONNECTION AND IEC LOGIC SYMBOLS May 1999 1/11 74ACT273 INPUT AND OUTPUT EQUIVALENT CIRCUIT PIN DESCRIPTION PIN No 1 2, 5, 6, 9, 12, 15, 16, 19 3, 4, 7, 8, 13, 14, 17, 18 11 SYMBOL CLEAR Q0 to Q7 D0 to D7 CLOCK N.