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MC74LVX374_14 Datasheet, PDF (4/7 Pages) ON Semiconductor – Octal D-Type Flip-Flop with 3-State Outputs | |||
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MC74LVX374
AC ELECTRICAL CHARACTERISTICS (Input tr = tf = 3.0ns)
TA = 25°C
TA = â40 to 85°C
Symbol
Parameter
Test Conditions
Min Typ Max Min
Max
Unit
fmax Maximum Clock Frequency
VCC = 2.7 V
CL = 15 pF
60 115
50
(50% Duty Cycle)
CL = 50 pF
45 60
40
MHz
VCC = 3.3 ± 0.3 V
CL = 15 pF
100 160
85
CL = 50 pF
60 95
55
tPLH,
tPHL
Propagation Delay
CP to O
VCC = 2.7 V
CL = 15 pF
CL = 50 pF
8.5 16.3 1.0
19.5
ns
11.0 19.8 1.0
23.0
VCC = 3.3 ± 0.3 V
CL = 15 pF
CL = 50 pF
6.7 10.6 1.0
12.5
9.2 14.1 1.0
16.0
tPZL,
tPZH
Output Enable Time
OE to O
VCC = 2.7 V
RL = 1 kW
CL = 15 pF
CL = 50 pF
7.6 14.5 1.0
17.5
ns
10.1 18.0 1.0
21.0
VCC = 3.3 ± 0.3 V
RL = 1 kW
CL = 15 pF
CL = 50 pF
5.9 9.3
1.0
11.0
8.4 12.8 1.0
14.5
tPLZ,
tPHZ
Output Disable Time
OE to O
VCC = 2.7 V
RL = 1 kW
CL = 50 pF
11.5 18.5 1.0
22.0
ns
VCC = 3.3 ± 0.3 V
RL = 1 kW
CL = 50 pF
9.6 13.2 1.0
15.0
tOSHL OutputâtoâOutput Skew
tOSLH (Note 1)
VCC = 2.7 V
VCC = 3.3 ± 0.3 V
CL = 50 pF
CL = 50 pF
1.5
1.5
ns
1.5
1.5
1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device.
The specification applies to any outputs switching in the same direction, either HIGHâtoâLOW (tOSHL) or LOWâtoâHIGH (tOSLH); parameter
guaranteed by design.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
TA = 25°C
TA = â40 to 85°C
Min Typ Max Min
Max
Unit
Cin Input Capacitance
4 10
10
pF
Cout Maximum ThreeâState Output Capacitance
6
pF
CPD Power Dissipation Capacitance (Note 2)
32
pF
2. CPD 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: ICC(OPR) = CPD VCC fin + ICC / 8 (per flipâflop). CPD is used to determine the
noâload dynamic power consumption; PD = CPD VCC2 fin + ICC VCC.
NOISE CHARACTERISTICS (Input tr = tf = 3.0ns, CL = 50pF, VCC = 3.3V, Measured in SOIC Package)
TA = 25°C
Symbol
Characteristic
Typ
Max
Unit
VOLP Quiet Output Maximum Dynamic VOL
0.5
0.8
V
VOLV Quiet Output Minimum Dynamic VOL
â0.5
â0.8
V
VIHD Minimum High Level Dynamic Input Voltage
2.0
V
VILD Maximum Low Level Dynamic Input Voltage
0.8
V
TIMING REQUIREMENTS (Input tr = tf = 3.0ns)
Symbol
Parameter
tw
Minimum Pulse Width, CP
tsu Minimum Setup Time, D to CP
th
Minimum Hold Time, D to CP
Test Conditions
VCC = 2.7 V
VCC = 3.3 ± 0.3 V
VCC = 2.7 V
VCC = 3.3 ± 0.3 V
VCC = 2.7 V
VCC = 3.3 ± 0.3 V
TA = 25°C TA = â40 to 85°C
Typ Limit
Limit
Unit
7.5
8.0
ns
5.0
5.5
6.5
6.5
ns
4.5
4.5
2.0
2.0
ns
2.0
2.0
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