DataSheetWiki


7474 fiches techniques PDF

Fairchild - Dual Positive-Edge-Triggered D-Type Flip-Flops

Numéro de référence 7474
Description Dual Positive-Edge-Triggered D-Type Flip-Flops
Fabricant Fairchild 
Logo Fairchild 





1 Page

No Preview Available !





7474 fiche technique
September 1986
Revised July 2001
DM7474
Dual Positive-Edge-Triggered D-Type Flip-Flops
with Preset, Clear and Complementary Outputs
General Description
This device contains two independent positive-edge-trig-
gered D-type flip-flops with complementary outputs. The
information on the D input is accepted by the flip-flops on
the positive going edge of the clock pulse. The triggering
occurs at a voltage level and is not directly related to the
transition time of the rising edge of the clock. The data on
the D input may be changed while the clock is LOW or
HIGH without affecting the outputs as long as the data
setup and hold times are not violated. A LOW logic level on
the preset or clear inputs will set or reset the outputs
regardless of the logic levels of the other inputs.
Ordering Code:
Order Number Package Number
Package Description
DM7474M
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
DM7474N
N14A
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300" Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Inputs
Outputs
PR CLR CLK
D
Q
Q
LHXXHL
HLXXLH
L L XXHH
(Note 1) (Note 1)
HH HH L
HHL LH
H H L X Q0 Q0
H = HIGH Logic Level
X = Either LOW or HIGH Logic Level
L = LOW Logic Level
↑ = Positive-going transition of the clock.
Q0 = The output logic level of Q before the indicated input conditions were
established.
Note 1: This configuration is nonstable; that is, it will not persist when either
the preset and/or clear inputs return to their inactive (HIGH) level.
© 2001 Fairchild Semiconductor Corporation DS006526
www.fairchildsemi.com

PagesPages 5
Télécharger [ 7474 ]


Fiche technique recommandé

No Description détaillée Fabricant
7473 Dual Master-Slave J-K F-F Fairchild Semiconductor
Fairchild Semiconductor
7474 Dual Positive-Edge-Triggered D-Type Flip-Flops Fairchild
Fairchild
7475 On-screen Display Controller for PAL-format Video Sanyo Semicon Device
Sanyo Semicon Device
7476 Dual Master-Slave J-K Flip-Flops Fairchild
Fairchild

US18650VTC5A

Lithium-Ion Battery

Sony
Sony
TSPC106

PCI Bus Bridge Memory Controller

ATMEL
ATMEL
TP9380

NPN SILICON RF POWER TRANSISTOR

Advanced Semiconductor
Advanced Semiconductor


www.DataSheetWiki.com    |   2020   |   Contactez-nous  |   Recherche