SN54AHCT574, SN74AHCT574

OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCLS245J – OCTOBER 1995 – REVISED JANUARY 2000

4

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted)

PARAMETER

TEST CONDITIONS

VCC

TA = 25°C

SN54AHCT574

SN74AHCT574

UNIT

PARAMETER

TEST CONDITIONS

VCC

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

VOH

IOH = –50 mA

45 V

4.4

4.5

4.4

4.4

V

VOH

IOH = –8 mA

4.5 V

3.94

3.8

3.8

V

VOL

IOL = 50 mA

45 V

0.1

0.1

0.1

V

VOL

IOL = 8 mA

4.5 V

0.36

0.44

0.44

V

II

VI = VCC or GND

0 V to 5.5 V

±0.1

±1*

±1

mA

IOZ

VO = VCC or GND

5.5 V

±0.25

±2.5

±2.5

mA

ICC

VI = VCC or GND,

IO = 0

5.5 V

4

40

40

mA

∆ICC†

One input at 3.4 V,

Other inputs at VCC or GND

5.5 V

1.35

1.5

1.5

mA

Ci

VI = VCC or GND

5 V

3

10

10

pF

Co

VO = VCC or GND

5 V

3

pF

* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.

† This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC.

(unless otherwise noted) (see Figure 1)

TA = 25°C

SN54AHCT574

SN74AHCT574

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

UNIT

tw

Pulse duration, CLK high or low

5

5.5

5.5

ns

tsu

Setup time, data before CLK

↑

3

3.5

3.5

ns

th

Hold time, data after CLK

↑

1.5

1.5

1.5

ns

switching characteristics over recommended operating free-air temperature range,

PARAMETER

FROM

TO

LOAD

TA = 25°C

SN54AHCT574

SN74AHCT574

UNIT

PARAMETER

(INPUT)

(OUTPUT)

CAPACITANCE

MIN

TYP

MAX

MIN

MAX

MIN

MAX

UNIT

f

CL = 15 pF

130**

180**

110**

110

MHz

fmax

CL = 50 pF

85

115

75

75

MHz

tPLH

CLK

Q

CL =15 pF

5.5**

8.6**

1**

10**

1

10

ns

tPHL

CLK

Q

CL = 15 pF

5.5**

8.6**

1**

10**

1

10

ns

tPZH

OE

Q

CL =15 pF

5**

9**

1**

10.5**

1

10.5

ns

tPZL

OE

Q

CL = 15 pF

5**

9**

1**

10.5**

1

10.5

ns

tPHZ

OE

Q

CL =15 pF

5.5**

9**

1**

10.5**

1

10.5

ns

tPLZ

OE

Q

CL = 15 pF

5.5**

9**

1**

10.5**

1

10.5

ns

tPLH

CLK

Q

CL =50 pF

7

10.6

1

12

1

12

ns

tPHL

CLK

Q

CL = 50 pF

7

10.6

1

12

1

12

ns

tPZH

OE

Q

CL =50 pF

6

11

1

12.5

1

12.5

ns

tPZL

OE

Q

CL = 50 pF

6

11

1

12.5

1

12.5

ns

tPHZ

OE

Q

CL =50 pF

7

10.1

1

11.5

1

11.5

ns

tPLZ

OE

Q

CL = 50 pF

7

10.1

1

11.5

1

11.5

ns

tsk(o)

CL = 50 pF

1***

1

ns

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

*** On products compliant to MIL-PRF-38535, this parameter does not apply.