SN54ALS652, SN54ALS653, SN54AS651, SN54AS652

SN74ALS651A, SN74ALS652A, SN74ALS653, SN74ALS654, SN74AS651, SN74AS652

OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

SDAS066G – DECEMBER 1983 – REVISED DECEMBER 2000

12

POST OFFICE BOX 655303

–0.5 V to 7 V

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

–0.5 V to 7 V

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

I / O ports

–0.5 V to 5.5 V

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

Package thermal impedance,

46

°C/W

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

NT package

67

°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.

recommended operating conditions

SN54ALS653

SN74ALS653

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

0.7

0.8

V

VOH

High-level output voltage

A ports

5.5

5.5

V

IOH

High-level output current

B ports

– 12

– 15

mA

IOL

Low-level output current

12

24

mA

fclock

Clock frequency

0

25

0

35

MHz

t

Pulse duration

CLKBA or CLKAB high

20

14.5

ns

tw

Pulse duration

CLKBA or CLKAB low

20

14.5

ns

tsu

Setup time before CLKAB

↑ or CLKBA↑

A or B

15

10

ns

th

Hold time after CLKAB

↑ or CLKBA↑

A or B

5

0

ns

TA

Operating free-air temperature

– 55

125

0

70

°C

recommended operating conditions

SN74ALS654

UNIT

MIN

NOM

MAX

UNIT

VCC

Supply voltage

4.5

5

5.5

V

VIH

High-level input voltage

2

V

VIL

Low-level input voltage

0.8

V

VOH

High-level output voltage

A ports

5.5

V

IOH

High-level output current

B ports

– 15

mA

IOL

Low-level output current

24

mA

fclock

Clock frequency

0

35

MHz

t

Pulse duration

CLKBA or CLKAB high

14.5

ns

tw

Pulse duration

CLKBA or CLKAB low

14.5

ns

tsu

Setup time before CLKAB

↑ or CLKBA↑

A or B

10

ns

th

Hold time after CLKAB

↑ or CLKBA↑

A or B

0

ns

TA

Operating free-air temperature

0

70

°C