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
fclock*
Clock frequency
100
100
MHz
CLR low
5.5
5
t *
tw*
Pulse duration
CLK high
4
4
ns
CLK low
’
AS174
6
6
CLK low
’
AS175B
5
5
Data
’
AS174
4
4
tsu*
Setup time before CLK
↑
’
AS175B
3
3
ns
CLR inactive
6
6
th*
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)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500
,
TA = MIN to MAX
SN54AS174
MIN
MAX
UNIT
SN74AS174
MIN
MAX
fmax*
tPHL
tPLH
tPHL
100
100
MHz
CLR
Any Q
5
15
5
14
ns
CLK
Any Q
3.5
4.5
9.5
11.5
3.5
4.5
8
ns
10
* 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)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500
,
TA = MIN to MAX
SN54AS175B
MIN
MAX
UNIT
SN74AS175B
MIN
MAX
fmax*
tPLH
tPHL
tPLH
tPHL
100
100
MHz
CLR
Any Q or Q
4
10
4
9
ns
4.5
15
4.5
13
CLK
Any Q or Q
3
3
8.5
11
3
3
7.5
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.