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74VHC374 Datasheet

  • 74VHC374

  • Octal D-Type Flip-Flop with 3-STATE Outputs

  • 7頁(yè)

  • FAIRCHILD

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74VHC374 Octal D-Type Flip-Flop with 3-STATE Outputs
November 1992
Revised April 1999
74VHC374
Octal D-Type Flip-Flop with 3-STATE Outputs
General Description
The VHC374 is an advanced high speed CMOS octal flip-
flop 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 volt-
age. 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
=
5.4 ns (typ) at V
CC
=
5V
s
High noise immunity: V
NIH
=
V
NIL
=
28% V
CC
(Min)
s
Power down protection is provided on all inputs
s
Low power dissipation: I
CC
=
4
碌A(chǔ)
(Max) @ T
A
=
25擄C
s
Pin and function compatible with 74HC374
Ordering Code:
Order Number
74VHC374M
74VHC374SJ
74VHC374MTC
74VHC374N
Package Number
M20B
M20D
MTC20
N20A
Package Description
20-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300鈥?Wide
20-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
20-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide
20-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300鈥?Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter 鈥淴鈥?to the ordering code.
Logic Symbol
IEEE/IEC
Connection Diagram
Pin Descriptions
Pin Names
D
0
鈥揇
7
CP
OE
O
0
鈥揙
7
Description
Data Inputs
Clock Pulse Input
3-STATE Output Enable Input
3-STATE Outputs
漏 1999 Fairchild Semiconductor Corporation
DS011538.prf
www.fairchildsemi.com

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