M74HC670 Datasheet, PDF (5/11 Pages) STMicroelectronics – 4 WORD x 4 BIT REGISTER FILE (3 STATE)

M74HC670
AC ELECTRICAL CHARACTERISTICS (C_L = 50 pF, Input t_r = t_f = 6ns)
Test Condition
Value
Symbol
Parameter
V_CC
(V)
t_TLH t_THL Output Transition 2.0
Time
4.5
6.0
t_PLH t_PHL Propagation Delay 2.0
Time
4.5
(RA, RB - Qn)
6.0
t_PLH t_PHL Propagation Delay 2.0
Time
4.5
(WE - Qn)
6.0
t_PLH t_PHL Propagation Delay 2.0
Time
4.5
(Dn - Qn)
6.0
t_PZL t_PZH High Impedance
2.0
Output Enable
4.5
Time
6.0
t_PLZ t_PHZ High Impedance
2.0
Output Disable
4.5
Time
6.0
t_W(L) Minimum Pulse
2.0
Width (WE)
4.5
6.0
t_s
Minimum Set-up
2.0
Time (Dn -WE)
4.5
(WA, WB - WE)
6.0
t_h Minimum Hold
2.0
Time (Dn - WE)
4.5
6.0
t_h Minimum Hold
2.0
Time
4.5
(WA, WB - WE)
6.0
t_latch Minimum Latch
2.0
Time
4.5
(WE - RA, RB)
6.0
R_L = 1 KΩ
R_L = 1 KΩ
T_A = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
30 75
95
110
8 15
19
22 ns
7 13
16
19
96 185
230
280
24 37
46
56 ns
20 31
39
48
108 220
275
330
27 44
55
66 ns
23 37
47
56
104 185
230
280
26 37
46
56 ns
22 31
39
48
42 110
140
165
13 22
28
33 ns
11 19
24
28
25 95
120
145
13 19
24
29 ns
11 16
20
25
16 75
95
110
4 15
19
22 ns
3 13
16
19
12 50
65
75
3 10
13
15 ns
3
9
11
13
0
0
0
0
0
0 ns
0
0
0
5
5
5
5
5
5 ns
5
5
5
5
5
5
5
5
5 ns
5
5
5
CAPACITIVE CHARACTERISTICS
Test Condition
Value
Symbol
Parameter
V_CC
(V)
T_A = 25°C
-40 to 85°C -55 to 125°C Unit
Min. Typ. Max. Min. Max. Min. Max.
C_IN Input Capacitance 5.0
5 10
10
10 pF
C_PD Power Dissipation
Capacitance (note 5.0
96
pF
1)
1) C_PD 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. I_CC(opr) = C_PD x V_CC x f_IN + I_CC
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