74lcx74 STMicroelectronics, 74lcx74 Datasheet - Page 7

• Manufacturer Part Number: 74lcx74
• Description: Cmos Dual D-type Flip Flop With 5v Tolerant Input
• Manufacturer: STMicroelectronics

74LCX74
Table 7. AC electrical characteristics
1. Skew is defined as the absolute value of the difference between the actual propagation delay for any two
2. Parameter guaranteed by design
Table 8. Capacitive characteristics
1. C
t
t
Symbol
Symbol
PLH
PLH
t
t
C
f
outputs of the same device switching in the same direction, either HIGH or LOW (t
t
operating current consumption without load. (Refer to Test Circuit). Average operating current can be
obtained by the following equation. I
OSLH
OSHL
C
MAX
OSHL
t
t
t
rec
t
PD
PD
W
IN
S
h
t
t
PHL
PHL
is defined as the value of the IC’s internal equivalent capacitance which is calculated from the
= | t
Input capacitance
Power dissipation
capacitance
Propagation delay
time (CK to Q or
Q)
Propagation delay
time (PR or CLR
to Q or Q)
Setup time, HIGH
or LOW level D to
CK
Hold time, HIGH
or LOW level D to
CK
CK Pulse width,
HIGH or LOW
PR or CLR Pulse
Width, LOW
Recovery time PR
or CLR to CK
Clock pulse
frequency
Output to output
skew time
PHLm
Parameter
- t
PHLn
Parameter
(1) (2)
|)
(1)
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
3.0 to 3.6
V
CC(opr)
2.7
2.7
2.7
2.7
2.7
2.7
2.7
(V)
CC
= C
V
(V)
3.3
3.3
CC
PD
Test condition
(pF)
Test condition
C
x V
50
50
50
50
50
50
50
50
L
CC
V
V
x f
f
IN
IN
IN
IN
= 0 or V
= 0 to V
= 10MHz
500
500
500
500
500
500
500
+ I
500
(Ω)
R
L
CC
/2 (per gate)
CC
CC
t
s
(ns)
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
= t
Electrical characteristics
Min
r
OSLH
T
A
Min
150
-40 to 85 °C
1.5
1.5
2.5
1.5
3.0
1.5
1.5
2.5
1.5
3.0
Value
0
0
= 25 °C
Typ
40
6
= | t
Value
PLHm
Max
8.0
7.0
8.0
7.0
1.0
Max
- t
PLHn
MHz
Unit
Unit
|,
ns
ns
ns
ns
ns
ns
ns
pF
pF
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