MC74VHC245_11 Datasheet, PDF (4/8 Pages) ON Semiconductor – Octal Bus Buffer/Line Driver

MC74VHC245
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ DC ELECTRICAL CHARACTERISTICS
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _Symbol
Parameter
V_CC
T_A = 25°C
T_A = − 40 to 85°C
Test Conditions
V
Min
Typ
Max
Min
Max Unit
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ I_OZ
Maximum
V_in = V_IL or V_IH
5.5
Three−State Leakage V_out = V_CC or GND
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _Current
± 0.25
± 2.5
μA
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _ICC
Maximum Quiescent V_in = V_CC or GND
5.5
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ Supply Current
4.0
40.0
μA
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)}
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _Symbol
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tPLH,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tPHL
Parameter
Maximum Propagation Delay,
A to B or B to A
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ tPZL,
t_PZH
Output Enable Time
OE to A or B
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tPLZ,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ t_PHZ
Output Disable Time
OE to A or B
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tOSLH,
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _tOSHL
Output to Output Skew
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _Cin
Maximum Input Capacitance
DIR, OE
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ _{CI/O MaximumThree−State}
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎÎ ^{I/O Capacitance}
Test Conditions
V_CC = 3.3 ± 0.3V C_L = 15pF
C_L = 50pF
V_CC = 5.0 ± 0.5V C_L = 15pF
C_L = 50pF
V_CC = 3.3 ± 0.3V C_L = 15pF
R_L = 1 kΩ
C_L = 50pF
V_CC = 5.0 ± 0.5V C_L = 15pF
R_L = 1 kΩ
C_L = 50pF
V_CC = 3.3 ± 0.3V C_L = 50pF
R_L = 1 kΩ
V_CC = 5.0 ± 0.5V C_L = 50pF
R_L = 1 kΩ
V_CC = 3.3 ± 0.3V C_L = 50pF
(Note 1)
V_CC = 5.0 ± 0.5V C_L = 50pF
(Note 1)
T_A = 25°C
Min
Typ
Max
5.8
8.4
8.3
11.9
4.0
5.5
5.5
7.5
8.5
13.2
11.0
16.7
5.8
8.5
7.3
10.6
11.5
15.8
7.0
9.7
1.5
1.0
4
10
8
T_A = − 40 to 85°C
Min
Max Unit
1.0
10.0 ns
1.0
13.5
1.0
6.5
1.0
8.5
1.0
15.5 ns
1.0
19.0
1.0
10.0
1.0
12.0
1.0
18.0 ns
1.0
11.0
1.5
ns
1.0
ns
10
pF
pF
Typical @ 25°C, V_CC = 5.0V
C_PD Power Dissipation Capacitance (Note 2)
21
pF
1. Parameter guaranteed by design. t_OSLH = |t_PLHm − t_PLHn|, t_OSHL = |t_PHLm − t_PHLn|.
2. 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 = 3.0ns, C_L = 50pF, V_CC = 5.0V)
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
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