Datasheet
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Electrical Characteristics
Timing Requirements
Switching Characteristics
SN74LVC2G79
DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP
SCES498D – OCTOBER 2003 – REVISED FEBRUARY 2007
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS V
CC
MIN TYP
(1)
MAX UNIT
I
OH
= –100 µ A 1.65 V to 5.5 V V
CC
– 0.1
I
OH
= –4 mA 1.65 V 1.2
I
OH
= –8 mA 2.3 V 1.9
V
OH
V
I
OH
= –16 mA 2.4
3 V
I
OH
= –24 mA 2.3
I
OH
= –32 mA 4.5 V 3.8
I
OL
= 100 µ A 1.65 V to 5.5 V 0.1
I
OL
= 4 mA 1.65 V 0.45
I
OL
= 8 mA 2.3 V 0.3
V
OL
V
I
OL
= 16 mA 0.4
3 V
I
OL
= 24 mA 0.55
I
OL
= 32 mA 4.5 V 0.55
I
I
D input V
I
= 5.5 V or GND 0 to 5.5 V ± 1 µ A
I
off
V
I
or V
O
= 5.5 V 0 ± 1 µ A
I
CC
V
I
= 5.5 V or GND, I
O
= 0 1.65 V to 5.5 V 5 µ A
∆ I
CC
One input at V
CC
– 0.6 V, Other inputs at V
CC
or GND 3 V to 5.5 V 500 µ A
C
i
V
I
= V
CC
or GND 0 3.5 pF
(1) All typical values are at V
CC
= 3.3 V, T
A
= 25 ° C.
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 2 )
V
CC
= 1.8 V V
CC
= 2.5 V V
CC
= 3.3 V V
CC
= 5 V
± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V
UNIT
MIN MAX MIN MAX MIN MAX MIN MAX
f
clock
Clock frequency 160 160 160 160 MHz
t
w
Pulse duration, CLK high or low 2.5 2.5 2.5 2.5 ns
Data high 2.2 1.4 1.1 0.9
t
su
Setup time before CLK ↑ ns
Data low 2.2 1.4 1.1 0.9
t
h
Hold time, data after CLK ↑ 1.4 0.8 0.7 0.5 ns
over recommended operating free-air temperature range, C
L
= 15 pF (unless otherwise noted) (see Figure 1 )
V
CC
= 1.8 V V
CC
= 2.5 V V
CC
= 3.3 V V
CC
= 5 V
FROM TO
± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V
PARAMETER UNIT
(INPUT) (OUTPUT)
MIN MAX MIN MAX MIN MAX MIN MAX
f
max
160 160 160 160 MHz
t
pd
CLK Q 3 9.1 1.5 6 1.3 4.2 1.1 3.7 ns
4
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