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is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.74VHC112 Dual J-K Flip-Flops with Preset and Clear
May 2007
74VHC112
tm
Dual J-K Flip-Flops with Preset and Clear
Features General Description
High speed: f = 200MHz (Typ.) at V = 5.0V The VHC112 is an advanced high speed CMOS device
MAX CC
fabricated with silicon gate CMOS technology. It
Low power dissipation: I = 2A (Max.) at T = 25C
CC A
achieves the high-speed operation similar to equivalent
High noise immunity: V = V = 28% V (Min.)
NIH NIL CC
Bipolar Schottky TTL while maintaining the CMOS low
Power down protection is provided on all inputs
power dissipation.
Pin and function compatible with 74HC112
The VHC112 contains two independent, high-speed JK
flip-flops with Direct Set and Clear inputs. Synchronous
state changes are initiated by the falling edge of the
clock. Triggering occurs at a voltage level of the clock
and is not directly related to transition time. The J and K
inputs can change when the clock is in either state with-
out affecting the flip-flop, provided that they are in the
desired state during the recommended setup and hold
times relative to the falling edge of the clock. The LOW
signal on PR or CLR prevents clocking and forces Q and
Q HIGH, respectively. Simultaneous LOW signals on PR
and CLR force both Q and Q HIGH.
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
backup. This circuit prevents device destruction due to
mismatched supply and input voltages.
Ordering Information
Package
Order Number Number Package Description
74VHC112M M16A 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
74VHC112SJ M16D 16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74VHC112MTC MTC16 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter X to the
ordering number.
1995 Fairchild Semiconductor Corporation www.fairchildsemi.com
74VHC112 Rev. 1.2