Datasheet

 
   
SCES226I − APRIL 1999 − REVISED MAY 2005
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range, V
CC
= 2.5 V ± 0.2 V
(unless otherwise noted) (see Figure 1)
T
A
= 25°C SN54LV4040A SN74LV4040A
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration
CLK high or low 7 7 7
ns
t
w
Pulse duration
CLR high
6.5 6.5 6.5
ns
t
su
Setup time CLR inactive before CLK↓
6.5 6.5 6.5 ns
timing requirements over recommended operating free-air temperature range, V
CC
= 3.3 V ± 0.3 V
(unless otherwise noted) (see Figure 1)
T
A
= 25°C SN54LV4040A SN74LV4040A
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration
CLK high or low 5 5 5
ns
t
w
Pulse duration
CLR high
5 5 5
ns
t
su
Setup time CLR inactive before CLK↓
5 5 5 ns
timing requirements over recommended operating free-air temperature range, V
CC
= 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
T
A
= 25°C SN54LV4040A SN74LV4040A
UNIT
MIN MAX MIN MAX MIN MAX
UNIT
t
w
Pulse duration
CLK high or low 5 5 5
ns
t
w
Pulse duration
CLR high
5 5 5
ns
t
su
Setup time CLR inactive before CLK↓
5 5 5 ns
switching characteristics over recommended operating free-air temperature range,
V
CC
= 2.5 V ± 0.2 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
LOAD
T
A
= 25°C SN54LV4040A SN74LV4040A
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
LOAD
CAPACITANCE
MIN TYP MAX MIN MAX MIN MAX
UNIT
f
max
C
L
= 15 pF 50* 115* 40* 40
MHz
f
max
C
L
= 50 pF 40 95 35 35
MHz
t
PLH
CLK
Q
A
C
L
= 15 pF
8.7* 19.4* 1* 23* 1 23
ns
t
PHL
CLK Q
A
C
L
= 15 pF
8.7* 19.4* 1* 23* 1 23
ns
t
PHL
CLR
Any Q
C
L
= 15 pF 9.3* 19.9* 1* 24* 1 24 ns
t
PLH
CLK
Q
A
C
L
= 50 pF
10.5 24.1 1 28 1 28
ns
t
PHL
CLK Q
A
C
L
= 50 pF
10.5 24.1 1 28 1 28
ns
t
PHL
CLR
Any Q
C
L
= 50 pF 11.7 24.5 1 28 1 28 ns
∆t
pd
Q
n
Q
n+1
C
L
= 50 pF 1.7 5.9 7 7 ns
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
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