m74hc294 STMicroelectronics, m74hc294 Datasheet - Page 6

• Manufacturer Part Number: m74hc294
• Description: Programmable Divider/timer
• Manufacturer: STMicroelectronics

M74HC294
AC ELECTRICAL CHARACTERISTICS (C
CAPACITIVE CHARACTERISTICS
1) C
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
6/11
t
t
t
Symbol
Symbol
TLH
TLH
PLH
t
t
f
t
t
t
C
PD
MAX
W(L)
W(H)
W(L)
REM
C
PHL
PD
IN
t
t
t
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
THL
THL
PHL
Output Transition
Time (Q)
Output Transition
Time (TP)
Propagation Delay
Time
(CLK - Q)
Propagation Delay
Time
(CLR - Q)
Maximum Clock
Frequency
Minimum Pulse
Width (CLK)
Minimum Pulse
Width (CLR)
Minimum Removal
Time
Input Capacitance
Power Dissipation
Capacitance (note
1)
Parameter
Parameter
V
V
(V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
(V)
5.0
5.0
CC
CC
Test Condition
Test Condition
L
= 50 pF, Input t
Min.
Min.
6.0
32
38
T
T
A
A
r
Typ.
Typ.
= 25°C
116
145
110
= 25°C
30
29
25
43
37
34
29
20
64
75
40
40
10
23
= t
8
7
8
7
9
5
f
= 6ns)
Max.
Max.
225
330
260
100
75
15
13
45
38
66
56
52
44
75
15
13
20
17
10
0
0
0
Value
Value
-40 to 85°C
Min.
-40 to 85°C
Min.
CC(opr)
26
31
5
= C
Max.
Max.
280
415
325
125
95
19
16
56
48
83
71
65
55
95
19
16
25
21
10
0
0
0
PD
x V
-55 to 125°C
-55 to 125°C
Min.
Min.
CC
21
25
4
x f
IN
Max.
Max.
+ I
340
390
150
110
110
22
19
68
57
15
84
78
66
22
20
30
26
10
0
0
0
CC
MHz
Unit
Unit
pF
pF
ns
ns
ns
ns
ns
ns
ns