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PDF SN74LS74A Data sheet ( Hoja de datos )
| Número de pieza | SN74LS74A | |
| Descripción | LOW POWER SCHOTTKY | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SN74LS74A (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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SN74LS74A
Dual D-Type Positive
Edge-Triggered Flip-Flop
The SN74LS74A dual edge-triggered flip-flop utilizes Schottky
TTL circuitry to produce high speed D-type flip-flops. Each flip-flop
has individual clear and set inputs, and also complementary Q and Q
outputs.
Information at input D is transferred to the Q output on the
positive-going edge of the clock pulse. Clock triggering occurs at a
voltage level of the clock pulse and is not directly related to the
transition time of the positive-going pulse. When the clock input is at
either the HIGH or the LOW level, the D input signal has no effect.
MODE SELECT – TRUTH TABLE
OPERATING MODE
INPUTS
SD SD
D
OUTPUTS
QQ
Set
Reset (Clear)
*Undetermined
Load “1” (Set)
Load “0” (Reset)
LHXHL
HLXLH
L L XHH
HH h H L
HH l LH
* Both outputs will be HIGH while both SD and CD are LOW, but the output
states are unpredictable if SD and CD go HIGH simultaneously. If the levels
at the set and clear are near VIL maximum then we cannot guarantee to meet
the minimum level for VOH.
H, h = HIGH Voltage Level
L, I = LOW Voltage Level
X = Don’t Care
l, h (q) = Lower case letters indicate the state of the referenced input
i, h (q) = (or output) one set-up time prior to the HIGH to LOW clock transition.
http://onsemi.com
LOW
POWER
SCHOTTKY
14
1
PLASTIC
N SUFFIX
CASE 646
14
1
SOIC
D SUFFIX
CASE 751A
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min Typ Max Unit
VCC Supply Voltage
TA Operating Ambient
Temperature Range
4.75 5.0 5.25
V
0 25 70 °C
IOH Output Current – High
IOL Output Current – Low
– 0.4
8.0
mA
mA
ORDERING INFORMATION
Device
Package
Shipping
SN74LS74AN 14 Pin DIP 2000 Units/Box
SN74LS74AD
14 Pin
2500/Tape & Reel
© Semiconductor Components Industries, LLC, 1999
December, 1999 – Rev. 6
1
Publication Order Number:
SN74LS74A/D
1 page  
14
1
N
–T–
SEATING
PLANE
H
A
F
G
SN74LS74A
PACKAGE DIMENSIONS
N SUFFIX
PLASTIC PACKAGE
CASE 646–06
ISSUE M
8
B
7
C
K
D 14 PL
0.13 (0.005) M
J
L
M
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
3. DIMENSION L TO CENTER OF LEADS WHEN
FORMED PARALLEL.
4. DIMENSION B DOES NOT INCLUDE MOLD FLASH.
5. ROUNDED CORNERS OPTIONAL.
INCHES
MILLIMETERS
DIM MIN MAX MIN MAX
A 0.715 0.770 18.16 18.80
B 0.240 0.260 6.10 6.60
C 0.145 0.185 3.69 4.69
D 0.015 0.021 0.38 0.53
F 0.040 0.070 1.02 1.78
G 0.100 BSC
2.54 BSC
H 0.052 0.095 1.32 2.41
J 0.008 0.015 0.20 0.38
K 0.115 0.135 2.92 3.43
L 0.290 0.310 7.37
M ––– 10_ –––
7.87
10_
N 0.015 0.039 0.38 1.01
http://onsemi.com
5
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| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet SN74LS74A.PDF ] | |
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