SN54BCT574, SN74BCT574

OCTAL TRANSPARENT D-TYPE FLIP-FLOPS

WITH 3-STATE OUTPUTS

SCBS074C – SEPTEMBER 1991 – REVISED MARCH 2003

3

POST OFFICE BOX 655303

recommended operating conditions (see Note 3)

SN54BCT574

SN74BCT574

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

4.5

5

5.5

V

VIH

High-level input voltage

2

2

V

VIL

Low-level input voltage

0.8

0.8

V

IIK

Input clamp current

–18

–18

mA

IOH

High-level output current

–12

–15

mA

IOL

Low-level output current

48

64

mA

TA

Operating free-air temperature

–55

125

0

70

°C

NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,

Implications of Slow or Floating CMOS Inputs, literature number SCBA004.

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

otherwise noted)

PARAMETER

TEST CONDITIONS

SN54BCT574

SN74BCT574

UNIT

PARAMETER

TEST CONDITIONS

MIN

TYP†

MAX

MIN

TYP†

MAX

UNIT

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

–1.2

V

IOH = –3 mA

2.4

3.3

2.4

3.3

VOH

VCC = 4.5 V

IOH = –12 mA

2

3.2

V

IOH = –15 mA

2

3.1

VOL

VCC =4 5V

IOL = 48 mA

0.38

0.55

V

VOL

VCC = 4.5 V

IOL = 64 mA

0.42

0.55

V

II

VCC = 5.5 V,

VI = 5.5 V

0.4

0.4

mA

IIH

VCC = 5.5 V,

VI = 2.7 V

20

20

µA

IIL

VCC = 5.5 V,

VI = 0.5 V

–0.6

–0.6

mA

IOS‡

VCC = 5.5 V,

VO = 0

–100

–225

–100

–225

mA

IOZH

VCC = 5.5 V,

VO = 2.7 V

50

50

µA

IOZL

VCC = 5.5 V,

VO = 0.5 V

–50

–50

µA

ICCL

VCC = 5.5 V,

Outputs open

38.1

62

38.1

62

mA

ICCH

VCC = 5.5 V,

Outputs open

4.9

8

4.9

8

mA

ICCZ

VCC = 5.5 V,

Outputs open

4.5

8

4.9

8

mA

Ci

VCC = 5 V,

VI = 2.5 V or 0.5 V

5.5

pF

Co

VCC = 5 V,

VO = 2.5 V or 0.5 V

7.5

pF

† All typical values are at VCC = 5 V, TA = 25°C.

‡ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.

timing requirements over recommended ranges of supply voltage and operating free-air

temperature (unless otherwise noted)

VCC = 5 V,

TA = 25°C

SN54BCT574

SN74BCT574

UNIT

MIN

MAX

MIN

MAX

MIN

MAX

fclock

Clock frequency

77

77

77

MHz

tw

Pulse duration, CLK high or low

6.5

6.5

6.5

ns

t

Setup time data before CLK

↑

High

4.5

4.5

4.5

ns

tsu

Setup time, data before CLK

↑

Low

6

6

6

ns

th

Hold time, data after CLK

↑

High or low

0

1

0

ns