Philips Semiconductors
Product Specification
Dual D-type flip-flop with set and reset;
positive-edge trigger
74LVC74A
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions voltages are referenced to GND (ground = 0V)
LIMITS
SYMBOL
PARAMETER
TEST CONDITIONS
Temp = -40°C to +85°C
MIN
V
IH
HIGH level Input voltage
V
CC
= 1.2V
V
CC
= 2.7 to 3.6V
LOW level Input voltage
V
CC
= 1.2V
V
CC
= 2.7 to 3.6V
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= –12mA
V
O
OH
HIGH level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= –100µA
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –18mA
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= –24mA
V
CC
= 2.7V; V
I
= V
IH
or V
IL
; I
O
= 12mA
V
OL
LOW level output voltage
V
CC
= 3.0V; V
I
= V
IH
or V
IL
; I
O
= 100µA
V
CC
= 3.0V; V
I
= V
IH
or V
IL;
I
O
= 24mA
I
I
I
CC
∆I
CC
Input leakage current
Quiescent supply current
Additional quiescent supply current per
input pin
V
CC
= 3 6V; V
I
= 5 5V or GND
3.6V;
5.5V
V
CC
= 3.6V; V
I
= V
CC
or GND; I
O
= 0
V
CC
= 2.7V to 3.6V; V
I
= V
CC
–0.6V; I
O
= 0
"0.1
"0
1
0.1
5
GND
V
CC
*0.5
V
CC
*0.2
V
CC
*0.6
V
CC
*1.0
0.40
0.20
0.55
"5
10
500
µA
µA
µA
V
V
CC
V
V
CC
2.0
GND
V
0.8
TYP1
MAX
V
UNIT
V
IL
NOTES:
1. All typical values are at V
CC
= 3.3V and T
amb
= 25°C.
AC CHARACTERISTICS
GND = 0 V; t
r
= t
f
v
2.5 ns; C
L
= 50 pF; R
L
= 500W; T
amb
= –40_C to +85_C
LIMITS
SYMBOL
PARAMETER
Propagation delay
nCP to nQ, nQ
t
PHL
/
t
PLH
Propagation delay
nS
D
to nQ, nQ
Propagation delay
nR
D
to nQ, nQ
t
W
t
rem
t
su
t
h
f
max
Clock pulse width HIGH or LOW
Set or reset pulse width LOW
Removal time set or reset
Set-up time nD to nCP
Hold time nD to nCP
Maximum clock pulse frequency
WAVEFORM
V
CC
= 3.3V
±0.3V
MIN
Figures 1, 3
Figures 2, 3
Figures 2, 3
Figure 1
Figure 2
Figure 2
Figure 1
Figure 1
Figure 1
1.5
1.5
1.5
3.3
3.3
1
2.0
1
150
TYP
1
3.6
3.5
3.5
1.3
1.7
–3
0.8
–0.7
250
MAX
5.2
5.4
5.4
–
–
–
–
–
–
V
CC
= 2.7V
MIN
–
–
–
–
–
–
–
–
–
MAX
6.0
6.4
6.4
–
–
–
–
–
–
ns
ns
ns
ns
ns
ns
ns
MHz
UNIT
NOTE:
1. These typical values are at V
CC
= 3.3V and T
amb
= 25°C.
1998 Jun 17
5
PHILIPS [ NXP SEMICONDUCTORS ]
