SINGLE POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOP
SCES387K – MARCH 2002 – REVISED APRIL 2007
www.ti.com
Timing Requirements
over recommended operating free-air temperature range (unless otherwise noted) (see Figure 1)
V
CC
= 0.8 V
TYP
f
clock
t
w
t
su
t
h
Clock frequency
Pulse duration, CLK high or low
Setup time before CLK↑, data high or low
Hold time, data after CLK↑
50
4.6
1.5
0
1.7
1.1
0
V
CC
= 1.2 V V
CC
= 1.5 V V
CC
= 1.8 V V
CC
= 2.5 V
±
0.1 V
±
0.1 V
±
0.15 V
±
0.2 V
MIN MAX
200
1.7
0.7
0
MIN MAX
225
1.7
0.7
0
MIN MAX
250
1.7
0.5
0.1
MIN MAX
275
UNIT
MHz
ns
ns
ns
ns
Switching Characteristics
over recommended operating free-air temperature range, C
L
= 15 pF (unless otherwise noted) (see
PARAMETER
f
max
t
pd
CLK
Q
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 0.8 V
TYP
50
5
V
CC
= 1.2 V
±
0.1 V
MIN
200
1
3.9
MAX
V
CC
= 1.5 V
±
0.1 V
MIN
225
0.8
2.5
MAX
V
CC
= 1.8 V
±
0.15 V
MIN
250
0.3
1
1.9
TYP
MAX
V
CC
= 2.5 V
±
0.2 V
MIN
275
0.3
1.3
MAX
MHz
ns
UNIT
Switching Characteristics
over recommended operating free-air temperature range, C
L
= 30 pF (unless otherwise noted) (see
PARAMETER
f
max
t
pd
CLK
Q
FROM
(INPUT)
TO
(OUTPUT)
V
CC
= 1.8 V
±
0.15 V
MIN
250
0.8
1.5
2.4
TYP MAX
V
CC
= 2.5 V
±
0.2 V
MIN MAX
275
0.6
1.8
ns
ns
UNIT
Operating Characteristics
T
A
= 25°C
PARAMETER
C
pd
Power dissipation
capacitance
TEST
CONDITIONS
f = 10 MHz
V
CC
= 0.8 V
TYP
18
V
CC
= 1.2 V
TYP
18
V
CC
= 1.5 V
TYP
18
V
CC
= 1.8 V
TYP
18.5
V
CC
= 2.5 V
TYP
20.5
UNIT
pF
4
TI [ TEXAS INSTRUMENTS ]
