MC74VHCT540A_06 Datasheet, PDF (4/7 Pages) ON Semiconductor – Octal Bus Buffer

MC74VHCT540A
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ AC ELECTRICAL CHARACTERISTICS (Input t_r = t_f = 3.0 ns)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _Symbol
Parameter
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tPLH,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tPHL
Maximum Propagation
Delay, A to Y
(Figures 1 and 3)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tPZL,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ^tPZH
Output Enable TIme,
OEn to Y
(Figures 2 and 4)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tPLZ,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ t_PHZ
Output Disable Time,
OEn to Y
(Figures 2 and 4)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{tOSLH, OutputtoOutputSkew}
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tOSHL
Test Conditions
V_CC = 3.3 ± 0.3 V C_L = 15 pF
C_L = 50 pF
V_CC = 5.0 ± 0.5 V C_L = 15 pF
C_L = 50 pF
V_CC = 3.3 ± 0.3 V C_L = 15 pF
R_L = 1.0 kΩ
C_L = 50 pF
V_CC = 5.0 ± 0.5 V C_L = 15 pF
R_L = 1.0 kΩ
C_L = 50 pF
V_CC = 3.3 ± 0.3 V C_L = 50 pF
R_L = 1.0 kΩ
V_CC = 5.0 ± 0.5 V C_L = 50 pF
R_L = 1.0 kΩ
V_CC = 3.3 ± 0.3 V C_L = 50 pF
(Note 3)
V_CC = 5.0 ± 0.5 V C_L = 50 pF
(Note 3)
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Cin MaximumInput
Capacitance
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Cout MaximumThree−State
Output Capacitance (Output
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ^{in High Impedance State)}
T_A = 25°C
Min Typ Max
4.8 7.0
7.3 10.5
3.7 5.0
5.2 7.0
6.8 10.5
9.3 14.0
4.7 7.2
6.2 9.2
11.2 15.4
6.0 8.8
1.5
1.0
4.0 10
6.0
T_A = − 40 to
85°C
Min Max
1.0 8.5
1.0 12.0
1.0 6.0
1.0 8.0
1.0 12.5
1.0 16.0
1.0 8.5
1.0 10.5
1.0 17.5
1.0 10.0
1.5
1.0
10
T_A ≤ 125°C
Min Max Unit
10.5 ns
14.0
8.0
10.0
15.0 ns
19.0
10.5
13.0
20.0 ns
11.5
2.0 ns
1.5 ns
10 pF
pF
Typical @ 25°C, V_CC = 5.0V
C_PD Power Dissipation Capacitance (Note 4)
17
pF
3. Parameter guaranteed by design. t_OSLH = |t_PLHm − t_PLHn|, t_OSHL = |t_PHLm − t_PHLn|.
4. C_PD is defined as the value of the internal equivalent capacitance which is calculated from the operating current consumption without load.
Average operating current can be obtained by the equation: I_CC(OPR) = C_PD  V_CC  f_in + I_CC / 8 (per bit). C_PD is used to determine the no−load
dynamic power consumption; P_D = C_PD  V_CC2  f_in + I_CC  V_CC.
NOISE CHARACTERISTICS (Input t_r = t_f = 3.0 ns, C_L = 50 pF, V_CC = 5.0 V)
Symbol
V_OLP
V_OLV
V_IHD
V_ILD
Parameter
Quiet Output Maximum Dynamic V_OL
Quiet Output Minimum Dynamic V_OL
Minimum High Level Dynamic Input Voltage
Maximum Low Level Dynamic Input Voltage
T_A = 25°C
Typ
Max
Unit
0.9
1.2
V
− 0.9
−1.2
V
3.5
V
1.5
V
http://onsemi.com
4