Datasheet

SN54ALS174, SN54ALS175, SN54AS174, SN54AS175B
SN74ALS174, SN74ALS175, SN74AS174, SN74AS175B
HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH CLEAR
SDAS207E - APRIL 1982 - REVISED MAY 2002
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
SN54AS174
SN54AS175B
SN74AS174
SN74AS175B
UNIT
MIN MAX MIN MAX
f
clock
* Clock frequency 100 100 MHz
CLR low
5.5 5
t
*
Pulse duration
CLK high
4 4
ns
t
w
*
Pulse
duration
CLK low
’AS174 6 6
ns
CLK low
’AS175B 5 5
↑
Data
’AS174 4 4
t
su
* Setup time before CLK
↑
Data
’AS175B 3 3
ns
CLR inactive 6 6
t
h
* Hold time, data after CLK↑ 1 1 ns
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data, but is not production tested.
switching characteristics (see Figure 1)
PARAMETER
FROM
(
INPUT
)
TO
(
OUTPUT
)
V
CC
= 4.5 V to 5.5 V,
C
L
= 50 pF,
R
L
= 500 Ω,
T
A
= MIN to MAX
†
UNIT
(INPUT)
(OUTPUT)
SN54AS174 SN74AS174
MIN MAX MIN MAX
f
max
* 100 100 MHz
t
PHL
CLR
Any Q 5 15 5 14 ns
t
PLH
CLK
Any Q
3.5 9.5 3.5 8
ns
t
PHL
CLK
Any
Q
4.5 11.5 4.5 10
ns
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data, but is not production tested.
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
switching characteristics (see Figure 1)
PARAMETER
FROM
(
INPUT
)
TO
(
OUTPUT
)
V
CC
= 4.5 V to 5.5 V,
C
L
= 50 pF,
R
L
= 500 Ω,
T
A
= MIN to MAX
†
UNIT
(INPUT)
(OUTPUT)
SN54AS175B SN74AS175B
MIN MAX MIN MAX
f
max
* 100 100 MHz
t
PLH
CLR
AQQ
4 10 4 9
ns
t
PHL
CLR
A
ny
Q
or
Q
4.5 15 4.5 13
ns
t
PLH
CLK
AnyQorQ
3 8.5 3 7.5
ns
t
PHL
CLK
A
ny
Q
or
Q
3 11 3 10
ns
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data, but is not production tested.
†
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.