SN54ALS174, SN54ALS175, SN54AS174, SN54AS175B

SN74ALS174, SN74ALS175, SN74AS174, SN74AS175B

HEX/QUADRUPLE D-TYPE FLIP-FLOPS WITH CLEAR

SDAS207E - APRIL 1982 - REVISED MAY 2002

5

POST OFFICE BOX 655303

absolute

maximum

ratings

over

operating

free-air

temperature

range,

SN54/74AS174,

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Package thermal impedance,

73

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

N package

67

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

NS package

64

°C/W

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–65

°C to 150°C

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not

implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.

recommended operating conditions (see Note 2)

SN54AS174

SN54AS175B

SN74AS174

SN74AS175B

UNIT

MIN

NOM

MAX

MIN

NOM

MAX

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

IOH

High-level output current

–2

–2

mA

IOL

Low-level output current

20

20

mA

TA

Operating free-air temperature

–55

125

0

70

°C

NOTE 2: 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

SN54AS174

SN54AS175B

SN74AS174

SN74AS175B

UNIT

MIN

TYP‡

MAX

MIN

TYP‡

MAX

VIK

VCC = 4.5 V,

II = –18 mA

–1.2

–1.2

V

VOH

VCC = 4.5 V to 5.5 V,

IOH = –2 mA

VCC– 2

VCC– 2

V

VOL

VCC = 4.5 V,

IOL = 20 mA

0.35

0.5

0.35

0.5

V

II

VCC = 5.5 V,

VI = 7 V

0.1

0.1

mA

IIH

VCC = 5.5 V,

VI = 2.7 V

20

20

µA

IIL

VCC = 5.5 V,

VI = 0.4 V

–0.5

–0.5

mA

IO§

VCC = 5.5 V,

VO = 2.25 V

–30

–112

–30

–112

mA

ICC

’AS174

VCC =5 5V

See Note 4

30

45

30

45

mA

ICC

’AS175B

VCC = 5.5 V,

See Note 4

22.5

34

22.5

34

mA

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

§ The output conditions have been chosen to produce a current that closely approximates one-half of the true short-circuit output current, IOS.

NOTE 4: ICC is measured with D inputs, CLR, and CLK grounded.