CD74FCT821A Datasheet, PDF (4/7 Pages) Texas Instruments – BiCMOS FCT Interface Logic, 10- Bit D-Type Flip-Flops, Three-State

CD74FCT821A, CD74FCT822A
Switching Specifications Over Operating Range FCT Series t_r, t_f = 2.5ns, C_L = 50pF, R_L (See Figures)
25^oC
0^oC TO 70^oC
PARAMETER
Propagation Delays (Note 6)
Clock to Q
CD74FCT821A
Clock to Q
CD74FCT822A
Output Enable to Q
CD74FCT821A
Output Disable to Q
CD74FCT821A
Output Enable to Q
CD74FCT822A
Output Disable to Q
CD74FCT822A
Power Dissipation Capacitance (Note 7)
Minimum (Valley) V_OH During Switching of Other Outputs
(Output Under Test Not Switching)
Maximum (Peak) V_OL During Switching of Other Outputs
(Output Under Test Not Switching)
SYMBOL V_CC (V) TYP
MIN
MAX
t_PLH, t_PHL
5
t_PLH, t_PHL
5
t_PZL, t_PZH
5
t_PLZ, t_PHZ
5
t_PZL, t_PZH
5
t_PLZ, t_PHZ
5
C_PD
−
V_OHV
5
V_OLP
5
7.5
1.5
10
7.5
1.5
10
9
1.5
12
6
1.5
8
9
1.5
12
6
1.5
8
0.5 Typical at 25^oC
1 Typical at 25^oC
Input Capacitance
C_I
-
-
Three-State Output Capacitance
C_O
-
-
NOTES:
6. 5V: Minimum is at 5.25V for 0^oC to 70^oC, Maximum is at 4.75 for 0^oc t0 70^oC, Typical is at 5V.
7.
C_PD, measured per
P_D (per package) =
flip-flop, is
V_CC I_CC +
used to determine the
Σ (V_CC2 f_I C_PD + V_O2
dynamic power consumption.
f_OC_L + V_CC ∆I_CC D) where:
V_CC = supply voltage
∆I_CC = flow through current x unit load
C_L = output load capacitance
D = duty cycle of input high
f_O = output frequency
f_I = input frequency
-
10
-
15
UNITS
ns
ns
ns
ns
ns
ns
pF
V
V
pF
pF
Prerequisite for Switching
PARAMETER
SYMBOL
Maximum Frequency (Note 8)
f_MAX
Data to Clock Setup Time
t_SU
Data to Clock Hold Time
t_H
Clock Pulse Width
t_W
NOTE:
8. 5V: Minimum is at 4.75V for 0^oC to 70^oC, Typical is at 5V.
V_CC (V)
5
5
5
5
25^oC
TYP
-
-
-
-
0^oC TO 70^oC
MIN
MAX
70
-
4
-
2
-
7
-
UNITS
MHz
ns
ns
ns
8-4