Datasheet

 
   
SCLS404F − APRIL 1998 − REVISED DECEMBER 2005
8
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 SN54LV161A SN74LV161A
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
low 7 7 7
ns
CLR 4.5 4.5 4.5
t
su
Setup time before CLK↑
Data (A, B, C, and D) 7.5 8.5 8.5
ns
t
su
Setup time before CLK↑
ENP, ENT
9.5 11 11
ns
LOAD low 10 11.5 11.5
t
h
Hold time, all synchronous inputs after CLK↑ 1.5 1.5 1.5 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 SN54LV161A SN74LV161A
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
low 5 5 5
ns
CLR 2.5 2.5 2.5
t
su
Setup time before CLK↑
Data (A, B, C, and D) 5.5 6.5 6.5
ns
t
su
Setup time before CLK↑
ENP, ENT
7.5 9 9
ns
LOAD low 8 9.5 9.5
t
h
Hold time, all synchronous inputs after CLK↑ 1 1 1 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 SN54LV161A SN74LV161A
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
low 5 5 5
ns
CLR 1.5 1.5 1.5
t
su
Setup time before CLK↑
Data (A, B, C, and D) 4.5 4.5 4.5
ns
t
su
Setup time before CLK↑
ENP, ENT
5 6 6
ns
LOAD low 5 6 6
t
h
Hold time, all synchronous inputs after CLK↑ 1 1 1 ns
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