74LVT245MTC datasheet(4/8 Pages) FAIRCHILD

部品番号	74LVT245MTC

部品情報	Low Voltage Octal Bidirectional Transceiver with 3-STATE Inputs/Outputs

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4

DC Electrical Characteristics (Continued)

Note 4: Applies to Bushold versions only (LVTH245).

Note 5: An external driver must source at least the specified current to switch from LOW-to-HIGH.

Note 6: An external driver must sink at least the specified current to switch from HIGH-to-LOW.

Note 7: This is the increase in supply current for each input that is at the specified voltage level rather than VCC or GND.

Dynamic Switching Characteristics (Note 8)

Note 8: Characterized in SOIC package. Guaranteed parameter, but not tested.

Note 9: Max number of outputs defined as (n). n

1 data inputs are driven 0V to 3V. Output under test held LOW.

AC Electrical Characteristics

Note 10: 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).

Capacitance (Note 11)

Note 11: Capacitance is measured at frequency f

1 MHz, per MIL-STD-883, Method 3012.

Symbol

Parameter

VCC

TA 40qC to 85qC

Units

Conditions

(V)

Min

Max

IOZH (Note 4) 3-STATE Output Leakage Current

3.6

5

PAVO 3.6V

IOZH

3-STATE Output Leakage Current

3.6

10

PAVCC VO d 5.5V

ICCH

Power Supply Current

3.6

0.19

mA

Outputs HIGH

ICCL

Power Supply Current

3.6

5

mA

Outputs LOW

ICCZ

Power Supply Current

3.6

0.19

mA

Outputs Disabled

ICCZ

Power Supply Current

3.6

0.19

mA

VCC d VO d 5.5V,

Outputs Disabled

'ICC

Increase in Power Supply Current

3.6

0.2

mA

One Input at VCC 0.6V

(Note 7)

Other Inputs at VCC or GND

Symbol

Parameter

VCC

TA 25qC

Units

Conditions

(V)

Min

Typ

Max

CL 50 pF, RL 500:

VOLP

Quiet Output Maximum Dynamic VOL

3.3

0.8

V

(Note 9)

VOLV

Quiet Output Minimum Dynamic VOL

3.3

0.8

V

(Note 9)

Symbol

Parameter

TA 40qC to 85qC

Units

CL 50 pF, RL 500:

VCC 3.3V r 0.3V

VCC 2.7V

MinMax

tPLH

Propagation Delay

1.2

3.6

1.2

4.0

ns

tPHL

1.2

3.5

1.2

4.0

tPZH

Output Enable Time

1.3

5.5

1.3

7.1

ns

tPZL

1.7

5.7

1.7

6.7

tPHZ

Output Disable

2.0

5.9

2.0

6.5

ns

tPLZ

2.0

5.0

2.0

5.1

tOSHL

Output to Output Skew

1.0

ns

tOSLH

(Note 10)

Symbol

Parameter

Conditions

Typical

Units

CIN

Input Capacitance

VCC 0V, VI 0V or VCC

4pF

CI/O

Input/Output Capacitance

VCC 3.0V, VO 0V or VCC

8pF

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