74ABT244CSJ datasheet(4/11 Pages) FAIRCHILD

Teilenummer	74ABT244CSJ

Bauteilbeschribung	Octal Buffer/Line Driver with 3-STATE Outputs

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Hersteller	FAIRCHILD [Fairchild Semiconductor]

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DC Electrical Characteristics

(SOIC package)

Note 6: Max number of outputs defined as (n). n

1 data inputs are driven 0V to 3V. One output at LOW. Guaranteed, but not tested.

Note 7: Max number of data inputs (n) switching. n

1 inputs switching 0V to 3V. Input-under-test switching: 3V to threshold (VILD), 0V to threshold (VIHD).

Guaranteed, but not tested.

Note 8: Max number of outputs defined as (n). n

1 data inputs are driven 0V to 3V. One output HIGH. Guaranteed, but not tested.

AC Electrical Characteristics

(SOIC and SSOP package)

Extended AC Electrical Characteristics

(SOIC package)

Note 9: This specification is guaranteed but not tested. The limits apply to propagation delays for all paths described switching in phase

(i.e., all LOW-to-HIGH, HIGH-to-LOW, etc.).

Note 10: This specification is guaranteed but not tested. The limits represent propagation delay with 250 pF load capacitors in place of the 50 pF load

capacitors in the standard AC load. This specification pertains to single output switching only.

Note 11: This specification is guaranteed but not tested. The limits represent propagation delays for all paths described switching in phase

(i.e., all LOW-to-HIGH, HIGH-to-LOW, etc.) with 250 pF load capacitors in place of the 50 pF load capacitors in the standard AC load.

Note 12: The 3-STATE delays are dominated by the RC network (500

:, 250 pF) on the output and have been excluded from the datasheet.

Conditions

Symbol

Parameter

Min

Typ

Max

Units

VCC

CL 50 pF,

RL 500:

VOLP

Quiet Output Maximum Dynamic VOL

0.5

0.8

V

5.0

TA 25qC (Note 6)

VOLV

Quiet Output Minimum Dynamic VOL

1.3

0.8

V

5.0

TA 25qC (Note 6)

VOHV

Minimum HIGH Level Dynamic Output Voltage

2.7

3.1

V

5.0

TA 25qC (Note 8)

VIHD

Minimum HIGH Level Dynamic Input Voltage

2.0

1.5

V

5.0

TA 25qC (Note 7)

VILD

Maximum LOW Level Dynamic Input Voltage

1.1

0.8

V

5.0

TA 25qC (Note 7)

TA 25qCTA 55qC to 125qCTA 40qC to 85qC

Symbol

Parameter

VCC 5V

VCC 4.5V–5.5V

Units

CL 50 pF

Min

Typ

Max

Min

Max

Min

Max

tPLH

Propagation Delay

1.0

2.5

3.6

1.0

5.3

1.0

3.6

ns

tPHL

Data to Outputs

1.0

2.3

3.6

1.0

5.0

1.0

3.6

tPZH

Output Enable

1.5

3.5

6.0

0.8

6.5

1.5

6.0

ns

tPZL

Time

1.5

3.6

6.0

1.2

7.9

1.5

6.0

tPHZ

Output Disable

1.7

3.5

5.6

1.2

7.6

1.7

5.6

ns

tPLZ

Time

1.7

3.3

5.6

1.0

7.9

1.7

5.6

TA40qC to 85qCTA 40qC to 85qCTA 40qC to 85qC

VCC 4.5V–5.5V

Symbol

Parameter

CL 50 pF

CL 250 pF

Units

8 Outputs Switching

1 Output Switching

8 Outputs Switching

(Note 9)

(Note 10)

(Note 11)

Min

Typ

Max

Min

Max

Min

Max

fTOGGLE

Max Toggle Frequency

100

MHz

tPLH

Propagation Delay

1.5

5.0

1.5

6.0

2.5

8.5

ns

tPHL

Data to Outputs

1.5

5.0

1.5

6.0

2.5

8.5

tPZH

Output Enable Time

1.5

6.5

2.5

7.5

2.5

10.0

ns

tPZL

1.5

6.5

2.5

7.5

2.5

12.0

tPHZ

Output Disable Time

1.0

5.6

(Note 12)

ns

tPLZ

1.0

5.6

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