74VHCT74A Dual D-Type Flip-Flop with Preset and Clear
July 1997
Revised February 2005
74VHCT74A
Dual D-Type Flip-Flop with Preset and Clear
General Description
The VHCT74A is an advanced high speed CMOS Dual
D-Type Flip-Flop fabricated with silicon gate CMOS tech-
nology. It achieves the high speed operation similar to
equivalent Bipolar Schottky TTL while maintaining the
CMOS low power dissipation. The signal level applied to
the D INPUT is transferred to the Q OUTPUT during the
positive going transition of the CK pulse. CLR and PR are
independent of the CK and are accomplished by setting 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
CC
0V. These circuits prevent
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.
Features
s
High speed: f
MAX
160 MHz (typ) at T
A
2.0V, V
IL
25
q
C
s
High noise immunity: V
IH
0.8V
s
Power down protection is provided on all inputs and
outputs
s
Low power dissipation:
I
CC
2
P
A (max) at T
A
25
q
C
s
Pin and function compatible with 74HCT74
Ordering Code:
Order Number
74VHCT74AM
74VHCT74AMX_NL
(Note 1)
74VHCT74ASJ
74VHCT74AMTC
74VHCT74AMTCX_NL
(Note 1)
74VHCT74AN
Package
Number
M14A
M14A
M14D
MTC14
MTC14
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Pb-Free 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
Pb-Free 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
Pb-Free 14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
14-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 鈥淴鈥?to the ordering code.
Pb-Free package per JEDEC J-STD-020B.
Note 1:
鈥淿NL鈥?indicates Pb-Free package (per JEDEC J-STD-020B). Device available in Tape and Reel only.
漏 2005 Fairchild Semiconductor Corporation
DS500026
www.fairchildsemi.com
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