CD74FCT540 Datasheet, PDF (4/7 Pages) Texas Instruments – BiCMOS FCT Interface Logic, Octal Buffers/Line Drivers, Three-State

CD74FCT540, CD74FCT541
Switching Specifications Over Operating Range FCT Series t_r, t_f = 2.5ns, C_L = 50pF, R_L (Figure 3) (Note 6)
25^oC
0^oC TO 70^oC
Propagation Delays
PARAMETER
SYMBOL V_CC (V) TYP
MIN
MAX
(Note 6)
Data to Outputs
CD74FCT540
CD74FCT541
Output Disable to Output
Output Enable to Output
Power Dissipation Capacitance
CD74FCT540
t_PLH, t_PHL
5
6.4
2
8.5
t_PLH, t_PHL
5
6
2
8
t_PLZ, t_PHZ
5
7.1
2
9.5
t_PZL, t_PZH
5
7.5
2
10
C_PD
(Note 7)
-
37
-
-
CD74FCT541
-
40
-
-
Minimum (Valley) V_OHV During Switching of
Other Outputs (Output Under Test Not Switching)
V_OHV
5
0.5
-
-
Maximum (Peak) V_OLP During Switching of
Other Outputs (Output Under Test Not Switching)
V_OLP
5
1
-
-
Input Capacitance
C_I
-
-
-
10
Three-State Output Capacitance
C_O
-
-
-
15
NOTES:
6. 5V: Min is at 5.25V for 0^oC to 70^oC, Max is at 4.75V for 0^oC to 70^oC, Typ is at 5V.
7. C_PD, measured per flip-flop, is used to determine the dynamic power consumption.
P_D (per package) = V_CC I_CC + Σ(V_CC2 f_I C_PD + V_O2 f_O C_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
UNITS
ns
ns
ns
ns
pF
pF
V
V
pF
pF
8-4