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

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 *

Pulse duration

CLK high

4

4

ns

tw*

Pulse duration

CLK low

’AS174

6

6

ns

CLK low

’AS175B

5

5

↑

Data

’AS174

4

4

tsu*

Setup time before CLK

↑

Data

’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,

TA = MIN to MAX†

UNIT

(INPUT)

(OUTPUT)

SN54AS174

SN74AS174

MIN

MAX

MIN

MAX

fmax*

100

100

MHz

tPHL

CLR

Any Q

5

15

5

14

ns

tPLH

CLK

Any Q

3.5

9.5

3.5

8

ns

tPHL

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)

VCC = 4.5 V to 5.5 V,

CL = 50 pF,

TA = MIN to MAX†

UNIT

(INPUT)

(OUTPUT)

SN54AS175B

SN74AS175B

MIN

MAX

MIN

MAX

fmax*

100

100

MHz

tPLH

CLR

AQ

Q

4

10

4

9

ns

tPHL

CLR

Any Q or Q

4.5

15

4.5

13

ns

tPLH

CLK

AnyQorQ

3

8.5

3

7.5

ns

tPHL

CLK

Any 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.