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M74HC670 Datasheet(PDF) 5 Page - STMicroelectronics

Part # M74HC670
Description  4 WORD x 4 BIT REGISTER FILE (3 STATE)
PDF  11 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M74HC670 Datasheet(HTML) 5 Page - STMicroelectronics

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AC ELECTRICAL CHARACTERISTICS (CL = 50 pF, Input tr = tf = 6ns)
CAPACITIVE CHARACTERISTICS
1) 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 operating current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
tTLH tTHL Output Transition
Time
2.0
30
75
95
110
ns
4.5
8
151922
6.0
7
131619
tPLH tPHL Propagation Delay
Time
(RA, RB - Qn)
2.0
96
185
230
280
ns
4.5
24
37
46
56
6.0
20
31
39
48
tPLH tPHL Propagation Delay
Time
(WE - Qn)
2.0
108
220
275
330
ns
4.5
27
44
55
66
6.0
23
37
47
56
tPLH tPHL Propagation Delay
Time
(Dn - Qn)
2.0
104
185
230
280
ns
4.5
26
37
46
56
6.0
22
31
39
48
tPZL tPZH High Impedance
Output Enable
Time
2.0
RL = 1 KΩ
42
110
140
165
ns
4.5
13
22
28
33
6.0
11
19
24
28
tPLZ tPHZ High Impedance
Output Disable
Time
2.0
RL = 1 KΩ
25
95
120
145
ns
4.5
13
19
24
29
6.0
11
16
20
25
tW(L)
Minimum Pulse
Width (WE)
2.0
16
75
95
110
ns
4.5
4
151922
6.0
3
131619
ts
Minimum Set-up
Time (Dn -WE)
(WA, WB - WE)
2.0
12
50
65
75
ns
4.5
3
101315
6.0
3
9
11
13
th
Minimum Hold
Time (Dn - WE)
2.0
0
0
0
ns
4.5
0
0
0
6.0
0
0
0
th
Minimum Hold
Time
(WA, WB - WE)
2.0
5
5
5
ns
4.5
5
5
5
6.0
5
5
5
tlatch
Minimum Latch
Time
(WE - RA, RB)
2.0
5
5
5
ns
4.5
5
5
5
6.0
5
5
5
Symbol
Parameter
Test Condition
Value
Unit
VCC
(V)
TA = 25°C
-40 to 85°C
-55 to 125°C
Min.
Typ.
Max.
Min.
Max.
Min.
Max.
CIN
Input Capacitance
5.0
5
101010
pF
CPD
Power Dissipation
Capacitance (note
1)
5.0
96
pF



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