74LVX4245MTC datasheet(4/8 Pages) FAIRCHILD

部件名	74LVX4245MTC

功能描述	8-Bit Dual Supply Translating Transceiver with 3-STATE Outputs

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制造商	FAIRCHILD [Fairchild Semiconductor]

网页	http://www.fairchildsemi.com

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4

DC Electrical Characteristics (Continued)

Note 3: Maximum test duration 2.0 ms, one output loaded at a time.

Note 4: Worst case package.

Note 5: Max number of outputs defined as (n). Data inputs are driven 0V to VCC level; one output at GND.

Note 6: Max number of Data Inputs (n) switching. (n

−1) inputs switching 0V to V

CC level. Input-under-test switching:

VCC level to threshold (VIHD), OV to threshold (VILD), f = 1 MHz.

AC Electrical Characteristics

Note 7: Voltage Range 5.0V is 5.0V

± 0.5V.

Note 8: Voltage Range 3.3V is 3.3V

± 0.3V.

Note 9: Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same device. The

specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). Parameter guaranteed by design.

Symbol

Parameter

VCCA

VCCB

TA +25°CTA = −40°C to +85°C

Units

Conditions

(V)

Typ

Guaranteed Limits

ICCA

Quiescent VCCA

An = VCCA or GND

Supply Current

5.5

3.6

8

80

µAB

n = VCCB or GND,

OE

= GND T/R = GND

ICCB

Quiescent VCCB

An = VCCA or GND

Supply Current

5.5

3.6

5

50

µAB

n = VCCB or GND,

OE

= GND T/R = V

CCA

VOLPA

Quiet Output Maximum

5.0

3.3

1.5

V

(Note 4)(Note 5)

VOLPB

Dynamic VOL

5.0

3.3

0.8

VOLVA

Quiet Output Minimum

5.0

3.3

−1.2

V

(Note 4)(Note 5)

VOLVB

Dynamic VOL

5.0

3.3

−0.8

VIHDA

Minimum HIGH Level

5.0

3.3

2.0

V

(Note 4)(Note 6)

VIHDB

Dynamic Input Voltage

5.0

3.3

2.0

VILDA

Maximum LOW Level

5.0

3.3

0.8

V

(Note 4)(Note 6)

VILDB

Dynamic Input Voltage

5.0

3.3

0.8

Symbol

Parameters

TA = +25°CTA = −40°C to +85°CTA = −40°C to +85°C

Units

CL = 50 pF

VCCA = 5V (Note 7)

VCCB = 3.3V (Note 8)

VCCB = 2.7V

Min

Typ

Max

Min

Max

Min

Max

tPHL

Propagation Delay

1.0

5.1

8.5

1.0

9.0

1.0

10.0

ns

tPLH

A to B

1.0

5.3

8.5

1.0

9.0

1.0

10.0

tPHL

Propagation Delay

1.0

5.4

8.5

1.0

9.0

1.0

10.0

ns

tPLH

B to A

1.0

5.5

8.5

1.0

9.0

1.0

10.0

tPZL

Output Enable Time

1.0

6.5

10.0

1.0

10.5

1.0

11.5

ns

tPZH

OE to B

1.0

6.7

10.0

1.0

10.5

1.0

11.5

tPZL

Output Enable Time

1.0

5.2

9.0

1.0

9.5

1.0

10.0

ns

tPZH

OE to A

1.0

5.8

9.0

1.0

9.5

1.0

10.0

tPHZ

Output Disable Time

1.0

6.0

9.5

1.0

10.0

1.0

10.0

ns

tPLZ

OE to B

1.0

3.3

6.5

1.0

7.0

1.0

7.5

tPHZ

Output Disable Time

1.0

3.9

7.0

1.0

7.5

1.0

7.5

ns

tPLZ

OE to A

1.0

2.9

6.5

1.0

7.0

1.0

7.5

tOSHL

Output to Output

tOSLH

Skew (Note 9)

1.0

1.5

ns

Data to Output

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