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PDF SN74LS273 Data sheet ( Hoja de datos )
| Número de pieza | SN74LS273 | |
| Descripción | OCTAL D FLIP-FLOP | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SN74LS273 (archivo pdf) en la parte inferior de esta página. Total 5 Páginas | ||
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OCTAL D FLIP-FLOP WITH CLEAR
The SN54 / 74LS273 is a high-speed 8-Bit Register. The register consists of
eight D-Type Flip-Flops with a Common Clock and an asynchronous active
LOW Master Reset. This device is supplied in a 20-pin package featuring 0.3
inch lead spacing.
• 8-Bit High Speed Register
• Parallel Register
• Common Clock and Master Reset
• Input Clamp Diodes Limit High-Speed Termination Effects
CONNECTION DIAGRAM DIP (TOP VIEW)
VCC Q7 D7 D6 Q6 Q5 D5 D4 Q4 CP
20 19 18 17 16 15 14 13 12 11
SN54/74LS273
OCTAL D FLIP-FLOP
WITH CLEAR
LOW POWER SCHOTTKY
20
1
J SUFFIX
CERAMIC
CASE 732-03
1 2 3 4 5 6 7 8 9 10
MR Q0 D0 D1 Q1 Q2 D2 D3 Q3 GND
PIN NAMES
LOADING (Note a)
HIGH
LOW
CP
Clock (Active HIGH Going Edge) Input
0.5 U.L.
0.25 U.L.
D0 – D7
MR
Data Inputs
Master Reset (Active LOW) Input
0.5 U.L.
0.5 U.L.
0.25 U.L.
0.25 U.L.
Q0 – Q7 Register Outputs (Note b)
10 U.L. 5 (2.5) U.L.
NOTES:
a) 1 TTL Unit Load (U.L.) = 40 µA HIGH/1.6 mA LOW.
b) The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial
(74) Temperature Ranges.
TRUTH TABLE
MR CP Dx Qx
LXX
HH
HL
L
H
L
H = HIGH Logic Level
L = LOW Logic Level
X = Immaterial
LOGIC DIAGRAM
3
4
7
8
13
11 D0 D1 D2 D3 D4
CP
20
1
20
1
N SUFFIX
PLASTIC
CASE 738-03
DW SUFFIX
SOIC
CASE 751D-03
ORDERING INFORMATION
SN54LSXXXJ Ceramic
SN74LSXXXN Plastic
SN74LSXXXDW SOIC
14 17 18
D5 D6 D7
CP D
CP D
CP D
CP D
CP D
CP D
CP D
CP D
1
CD Q
CD Q
CD Q
CD Q
CD Q
CD Q
CD Q
CD Q
MR
VCC = PIN 20
GND = PIN 10
= PIN NUMBERS
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
2
5
6
9
12
15 16
19
FAST AND LS TTL DATA
5-447
1 page  
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
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systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of
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unintended or unauthorized application, Buyer shall indemnify and hold Motorola and its officers, employees, subsidiaries, affiliates, and distributors harmless
against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death
associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
Motorola and are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal Opportunity/Affirmative Action Employer.
Literature Distribution Centers:
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USA: Motorola Literature
EUROPE: Motorola Ltd.;
Distribution; P.O. Box 20912; Phoenix, Arizona
European Literature Centre; 88 Tanners Drive,
85036.
Blakelands,
Milton
Keynes,
MK14
5tBPPZ, HEngland.
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JAPAN: Nippon Motorola Ltd.; 4-32-1, Nishi-Gotanda, Shinagawa-ku, Tokyo 141, Japan.
tPZL
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ASIA PACIFIC: Motorola Semiconductors H.K. Ltd.; Silicon Harbour Center, No. 2 Dai King Street, Tai Po Industrial Estate, Tai Po, N.T., Hong Kong.
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◊ FAST AND LS TTL DATA
5-451
5 Page | ||
| Páginas | Total 5 Páginas | |
| PDF Descargar | [ Datasheet SN74LS273.PDF ] | |
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