MC74HCT374A_14 Datasheet, PDF (4/7 Pages) ON Semiconductor – Octal 3-State Noninverting D Flip-Flop with LSTTL-Compatible Inputs

MC74HCT374A
TIMING REQUIREMENTS (V_CC = 5.0 V ± 10%, Input t_r = t_f = 6.0 ns)
Symbol
Parameter
t_su Minimum Setup Time, Data to Clock
(Figure 3)
t_h
Minimum Hold Time, Clock to Data
(Figure 3)
t_w
Minimum Pulse Width, Clock
(Figure 1)
t_r, t_f Maximum Input Rise and Fall Times
(Figure 1)
Guaranteed Limit
−55 to 25_C ≤ 85_C ≤ 125_C Unit
12
15
18
ns
5.0
5.0
5.0
ns
12
15
18
ns
500
500
500
ns
CLOCK
Q
t_r
2.7 V
1.3 V
0.3 V
t_w
1/f_max
t_PLH
90%
1.3 V
10%
t_TLH
t_f
t_PHL
t_THL
Figure 1.
SWITCHING WAVEFORMS
V_CC
OUTPUT
1.3 V
ENABLE
GND
t_PZL t_PLZ
Q
1.3 V
t_PZH t_PHZ
Q
1.3 V
Figure 2.
3V
GND
HIGH
IMPEDANCE
10% _VOL
90% ^VOH
HIGH
IMPEDANCE
VALID
DATA
3V
1.3 V
GND
t_su
t_h
CLOCK
3V
1.3 V
GND
Figure 3.
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
C_L*
TEST CIRCUITS
DEVICE
UNDER
TEST
TEST POINT
OUTPUT
1 kW
C_L*
CONNECT TO V_CC WHEN
TESTING t_PLZ AND t_PZL
CONNECT TO GND WHEN
TESTING t_PHZ AND t_PZH
*Includes all probe and jig capacitance
Figure 4.
*Includes all probe and jig capacitance
Figure 5.
http://onsemi.com
4