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Número de pieza | M54HC74 | |
Descripción | DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR | |
Fabricantes | ST Microelectronics | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de M54HC74 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
No Preview Available ! M54HC74
M74HC74
DUAL D TYPE FLIP FLOP WITH PRESET AND CLEAR
. HIGH SPEED
fMAX = 71 MHz (TYP.) AT VCC = 5 V
. LOW POWER DISSIPATION
ICC = 2 µA (MAX.) AT TA = 25 °C
. HIGH NOISE IMMUNITY
VNIH = VNIL = 28 % VCC (MIN.)
. OUTPUT DRIVE CAPABILITY
10 LSTTL LOADS
. SYMMETRICAL OUTPUT IMPEDANCE
IOH = IOL = 4 mA (MIN.)
. BALANCED PROPAGATION DELAYS
tPLH = tPHL
. WIDE OPERATING VOLTAGE RANGE
VCC (OPR) = 2 V TO 6 V
. PIN AND FUNCTION COMPATIBLE
WITH 54/74LS74
B1R
(Plastic Package)
F1R
(Ceramic Package)
M 1R
(Micro Package)
C1R
(Chip Carrier)
ORDER CODES :
M54HC74F1R
M 74H C7 4M 1R
M 74HC 74 B1 R
M 74H C7 4C 1R
DESCRIPTION
The M54/74HC74 is a high speed CMOS DUAL D
TYPE FLOP WITH PRESET AND CLEAR fabri-
cated in silicon gate C2MOS technology. It has the
same high speed performance of LSTTL combined
with true CMOS low power consumption. A signal on
the D INPUT is transferred to the Q OUTPUT during
the positive going transition of the clock pulse.
CLEAR and PRESET are independent of the clock
and accomplished by a low on the appropriate input.
All inputs are equipped with protection circuits
against static discharge and transient excess volt-
age.
PIN CONNECTIONS (top view)
INPUT AND OUTPUT EQUIVALENT CIRCUIT
October 1992
NC =
No Internal
Connection
1/11
1 page M54/M74HC74
AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6 ns)
Symbol
Parameter
Test Conditions
VCC
(V)
TA = 25 oC
54HC and 74HC
Min. Typ. Max.
Value
-40 to 85 oC
74HC
Min. Max.
-55 to 125 oC
54HC
Min. Max.
Unit
tTLH Output Transition 2.0
tTHL Time
4.5
30 75
8 15
95 110
19 22 ns
6.0 7 13 16 19
tPLH Propagation
tPHL Delay Time
(CLOCK - Q)
2.0
4.5
6.0
48 150 190 225
16 30 38 45 ns
13 26 32 38
tPLH Propagation
tPHL Delay Time
(CL, PR - Q)
2.0
4.5
6.0
51 150 190 225
17 30 38 45 ns
15 26 32 38
fMAX Maximum Clock 2.0
Frequency
4.5
6.2 21 5 4.2
31 63 25 21 MHz
6.0 37 67 30 25
tW(H)
tW(L)
Minimum Pulse
Width
(CLOCK)
2.0
4.5
6.0
18 75
6 15
6 13
95 110
19 22 ns
16 19
tW(L) Minimum Pulse
Width
(CL, PR)
2.0
4.5
6.0
21 75
7 15
6 13
95 110
19 22 ns
16 19
ts Minimum Set-up 2.0
Time
4.5
15 75
4 15
95 110
19 22 ns
6.0 3 13 16 19
th Minimum Hold 2.0
Time
4.5
000
0 0 0 ns
6.0 0 0 0
tREM Minimum
Removal Time
(CL, PR)
2.0
4.5
6.0
0 25 30 35
0 5 6 7 ns
04 5 6
CIN Input Capacitance
5 10 10 10 pF
CPD (*) Power Dissipation
Capacitance
34
pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load.
(Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD •VCC •fIN + ICC/2 (per FLIP/FLOP)
5/11
5 Page M54/M74HC74
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No
license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned
in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied.
SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express
written approval of SGS-THOMSON Microelectonics.
© 1994 SGS-THOMSON Microelectronics - All Rights Reserved
SGS-THOMSON Microelectronics GROUP OF COMPANIES
Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands -
Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A
11/11
11 Page |
Páginas | Total 11 Páginas | |
PDF Descargar | [ Datasheet M54HC74.PDF ] |
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