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This literature is subject to all applicable copyright laws and is not for resale in any manner.74VHCT74A Dual D-Type Flip-Flop with Preset and Clear May 2008 74VHCT74A Dual D-Type Flip-Flop with Preset and Clear Features General Description n High speed: f = 160MHz (Typ.) at T = 25C The VHCT74A is an advanced high speed CMOS Dual MAX A D-Type Flip-Flop fabricated with silicon gate CMOS tech- n High noise immunity: V = 2.0V, V = 0.8V IH IL nology. It achieves the high speed operation similar to n Power down protection is provided on all inputs and equivalent Bipolar Schottky TTL while maintaining the outputs CMOS low power dissipation. The signal level applied to n Low power dissipation: I = 2A (Max.) at T = 25C CC A the D INPUT is transferred to the Q OUTPUT during the n Pin and function compatible with 74HCT74 positive going transition of the CK pulse. CLR and PR are independent of the CK and are accomplished by set- ting the appropriate input LOW. Protection circuits ensure that 0V to 7V can be applied to the input pins without regard to the supply voltage and to the output pins with V = 0V. These circuits prevent CC device destruction due to mismatched supply and input/ output voltages. This device can be used to interface 3V to 5V systems and two supply systems such as battery backup. Ordering Information Package Order Number Number Package Description 74VHCT74AM M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150 Narrow 74VHCT74ASJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide 74VHCT74AMTC MTC14 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide Device also available in Tape and Reel. Specify by appending suffix letter X to the ordering number. All packages are lead free per JEDEC: J-STD-020B standard. 2008 Fairchild Semiconductor Corporation www.fairchildsemi.com 74VHCT74A Rev. 1.4.0