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74HCT74D Datasheet(数据表) 4 Page - NXP Semiconductors

部件型号  74HCT74D
说明  Dual D-type flip-flop with set and reset; positive edge-trigger
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制造商  PHILIPS [NXP Semiconductors]
网页  http://www.nxp.com
标志 

 
 4 page
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74HC_HCT74
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 4 — 27 August 2012
4 of 21
NXP Semiconductors
74HC74; 74HCT74
Dual D-type flip-flop with set and reset; positive edge-trigger
6.
Functional description
[1]
H = HIGH voltage level; L = LOW voltage level; X = don’t care.
[1]
H = HIGH voltage level; L = LOW voltage level;
 = LOW-to-HIGH transition; Q
n+1 = state after the next LOW-to-HIGH CP transition;
X = don’t care.
7.
Limiting values
[1]
For DIP14 package: Ptot derates linearly with 12 mW/K above 70 C.
For SO14 package: Ptot derates linearly with 8 mW/K above 70 C.
For (T)SSOP14 packages: Ptot derates linearly with 5.5 mW/K above 60 C.
For DHVQFN14 packages: Ptot derates linearly with 4.5 mW/K above 60 C.
Table 3.
Function table[1]
Input
Output
nSD
nRD
nCP
nD
nQ
nQ
L
H
XXH
L
H
L
XXL
H
L
L
XXH
H
Table 4.
Function table[1]
Input
Output
nSD
nRD
nCP
nD
nQn+1
nQn+1
HH
LLH
HH
HHL
Table 5.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
Parameter
Conditions
Min
Max
Unit
VCC
supply voltage
0.5
+7
V
IIK
input clamping current
VI < 0.5 V or VI >VCC +0.5 V
-
20
mA
IOK
output clamping current
VO < 0.5 V or VO >VCC +0.5 V
-
20
mA
IO
output current
VO = 0.5 V to (VCC +0.5 V)
-
25
mA
ICC
supply current
-
+100
mA
IGND
ground current
100
-
mA
Tstg
storage temperature
65
+150
C
Ptot
total power dissipation
DIP14 package
[1] -
750
mW
SO14, (T)SSOP14 and DHVQFN14
packages
[1] -
500
mW




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