CD74HC297 Datasheet, PDF (6/15 Pages) Texas Instruments – High-Speed CMOS Logic Digital Phase-Locked-Loop

CD54HC297, CD74HC297, CD74HCT297
Switching Specifications Input t_r, t_f = 6ns (Continued)
PARAMETER
Propagation Delay,
φA₁, φB to XORPD_OUT
Propagation Delay,
φB, φA₂ to ECPD_OUT
Output Transition Time
XORPD_OUT
ECPD_OUT
Output Transition Time
I/D_OUT
Input Capacitance
HCT TYPES
Propagation Delay,
I/D_CP to I/D_OUT
Propagation Delay,
φA₁, φB to XORPD_OUT
Propagation Delay,
φB, φA₂ to ECPD_OUT
Output Transition Time
XORPD_OUT
Output Transition Time
ECPD_OUT
Input Capacitance
TEST
SYMBOL CONDITIONS V_CC (V)
t_PLH, t_PHL C_L = 50pF
2
4.5
6
t_PHL, t_PHL C_L = 50pF
2
4.5
6
t_TLH
C_L = 50pF
2
4.5
6
t_TLH
C_L = 50pF
2
4.5
6
C_I
-
-
t_PLH, t_PHL C_L = 50pF
4.5
t_PLH, t_PHL C_L = 50pF
4.5
t_PHL, t_PHL C_L = 50pF
4.5
t_TLH
C_L = 50pF
4.5
t_TLH
C_L = 50pF
4.5
C_I
-
-
25^oC
TYP MAX
-
150
-
30
-
26
-
200
-
40
-
34
-
75
-
15
-
13
-
60
-
12
-
10
-
10
-
35
-
30
-
40
-
15
-
12
-
10
-40^oC TO 85^oC -55^oC TO 125^oC
MAX
MAX
UNITS
190
225
ns
38
45
ns
33
38
ns
250
300
ns
50
60
ns
43
51
ns
95
110
ns
19
22
ns
16
19
ns
75
90
ns
15
18
ns
13
15
ns
10
10
pF
44
53
ns
38
45
ns
50
60
ns
19
22
ns
15
18
ns
10
10
pF
6