SN54AHCT594, SN74AHCT594

8BIT SHIFT REGISTERS

WITH OUTPUT REGISTERS

SCLS417H − JUNE 1998 − REVISED SEPTEMBER 2003

7

POST OFFICE BOX 655303

switching characteristics over recommended operating free-air temperature range,

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54AHCT594

SN74AHCT594

UNIT

PARAMETER

FROM

(INPUT)

TO

(OUTPUT)

LOAD

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

fmax

CL = 15 pF

135*

170*

115*

115

MHz

fmax

CL = 50 pF

120

140

95

95

MHz

tPLH

RCLK

QA−QH

CL = 15 pF

3.3*

6.2*

1*

6.5*

1

6.5

ns

tPHL

RCLK

QA−QH

CL = 15 pF

3.7*

6.5*

1*

6.9*

1

6.9

ns

tPLH

SRCLK

QH

CL = 15 pF

3.7*

6.8*

1*

7.2*

1

7.2

ns

tPHL

SRCLK

QH′

CL = 15 pF

4.1*

7.2*

1*

7.6*

1

7.6

ns

tPHL

RCLR

QA−QH

CL = 15 pF

4.5*

7.6*

1*

8.2*

1

8.2

ns

tPHL

SRCLR

QH′

CL = 15 pF

4.1*

7.1*

1*

7.6*

1

7.6

ns

tPLH

RCLK

QA−QH

CL = 50 pF

4.9

7.8

1

8.3

1

8.3

ns

tPHL

RCLK

QA−QH

CL = 50 pF

5.8

8.9

1

9.7

1

9.7

ns

tPLH

SRCLK

QH

CL = 50 pF

5.5

8.6

1

9.1

1

9.1

ns

tPHL

SRCLK

QH′

CL = 50 pF

6

9.2

1

10.1

1

10.1

ns

tPHL

RCLR

QA−QH

CL = 50 pF

6.6

10

1

10.7

1

10.7

ns

tPHL

SRCLR

QH′

CL = 50 pF

6

9.2

1

10.1

1

10.1

ns

* On products compliant to MIL-PRF-38535, this parameter is not production tested.

PARAMETER

SN74AHCT594

UNIT

PARAMETER

MIN

TYP

MAX

UNIT

VOL(P)

Quiet output, maximum dynamic VOL

1

V

VOL(V)

Quiet output, minimum dynamic VOL

−0.6

V

VOH(V)

Quiet output, minimum dynamic VOH

3.8

V

VIH(D)

High-level dynamic input voltage

2

V

VIL(D)

Low-level dynamic input voltage

0.8

V

NOTE 4: Characteristics are for surface-mount packages only.

PARAMETER

TEST CONDITIONS

TYP

UNIT

Cpd

Power dissipation capacitance

No load,

f = 1 MHz

112

pF