74VHC574 Datasheet | Fairchild Semiconductor

Description The VHC574 is an advanced high speed CMOS octal flipflop with 3-STATE output fabricated with silicon gate CMOS technology. It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. This 8-bit D-type flip-flop is controlled by a clock input (CP) and an output enable input (OE). When the OE input is HIGH, the eight outputs are in a high impedance state. An input protection circuit ensures that 0V to 7V can be applied to the input pins without regard to the supply voltage. This device can be used to interface 5V to 3V systems and two supply systems such as battery back up. This cir- cuit prevents device destruction due to mismatched supply and input voltages. Features s High Speed: t PD 5.6 ns (typ) at VCC 5V s High Noise Immunity: VNIH VNIL 28% VCC (Min) s Power Down Protection is provided on all inputs s Low Noise: VOLP 0.6V (typ) s Low Power Dissipation: ICC 4 PA (Max) @ TA 25q C s Pin and Function patible with 74HC574 Ordering Code: Order Number Package Number Package Description 74VHC574M M20B 20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300" Wide 74VHC574SJ M20D Pb-Free 20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74VHC574MTC MTC20 20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide 74VHC574N N20A 20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the ordering code. Pb-Free package per JEDEC J-STD-020B. Logic Symbol Connection Diagram IEEE/IEC Pin Descriptions Pin Names Description D0- D7 CP Data Inputs Clock Pulse Input 3-STATE Output Enable Input O0- O7 3-STATE Outputs © 2005 Fairchild Semiconductor Corporation DS011565 .fairchildsemi. Functional Description Truth Table The VHC574 consists of eight edge-triggered flip-flops with individual D-type...