74LVT244WM.. datasheet(6/12 Pages) ONSEMI

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74LVT244, 74LVTH244 Rev. 1.5.0

Dynamic Switching Characteristics(7)

Notes:

7. Characterized in SOIC package. Guaranteed parameter, but not tested.

8. Max number of outputs defined as (n). n–1 data inputs are driven 0V to 3V. Output under test held LOW.

AC Electrical Characteristics

Notes:

9. All typical values are at VCC = 3.3V, TA = 25°C.

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). Parameter guaranteed by design.

Capacitance(11)

Note:

11. Capacitance is measured at frequency f = 1MHz, per MIL-STD-883, Method 3012.

Symbol

Parameter

VCC (V)

Conditions

TA = 25°C

Units

CL = 50pF, RL = 500Ω

Min.

Typ.

Max.

VOLP

Quiet Output Maximum

Dynamic VOL

3.3

(8)

0.8

VOLV

Quiet Output Minimum

Dynamic VOL

3.3

(8)

–0.8

Symbol

Parameter

TA = –40°C to +85°C

CL = 50pF, RL = 500Ω

Units

VCC = 3.3V ± 0.3V

VCC = 2.7V

Min.

Typ.(9)

Max.

Min.

Max.

tPLH

Propagation Delay, Data to Output

1.1

3.8

1.1

4.0

tPHL

1.3

3.9

1.3

4.2

tPZH

Output Enable Time

1.1

4.5

1.1

5.3

tPZL

1.4

4.4

1.4

5.0

tPHZ

Output Disable Time

1.9

4.9

1.9

5.1

tPLZ

1.8

4.4

1.8

4.4

tOSHL, tOSLH Output to Output Skew

(10)

1.0

Symbol

Parameter

Conditions

Typical

Units

CIN

Input Capacitance

VCC = 0V, VI = 0V or VCC

3pF

COUT

Output Capacitance

VCC = 3.0V, VO = 0V or VCC

6pF

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