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74VHC74 — Dual D-Type Flip-Flop with Preset and Clear
February 2014
74VHC74
Dual D-Type Flip-Flop with Preset and Clear
Features
■
High Speed: f
MAX
=
170MHz (typ.) at T
A
=
25°C
■
High noise immunity: V
NIH
=
V
NIL
=
28% V
CC
(min.)
■
Power down protection is provided on all inputs
■
Low power dissipation: I
CC
=
2µA (max.) at T
A
=
25°C
■
Pin and function compatible with 74HC74
General Description
The VHC74 is an advanced high speed CMOS Dual
D-Type Flip-Flop 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. The signal level applied to
the D input is transferred to the Q output during the posi-
tive going transition of the CK pulse. CLR and PR are
independent of the CK and are accomplished by setting
the appropriate input LOW.
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
Order Number
74VHC74M
74VHC74SJ
74VHC74MTC
74VHC74N
Package
Number
M14A
M14D
MTC14
N14A
Package Description
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150"
Narrow
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
14-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,
For healthcare professionals, accurate diagnosis and treatment are crucial for a clear picture of a person's health. However, healthcare professionals often rely on tests at medical facilities, cli...[详细]
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