74LCX240MTC_08 datasheet(4/12 Pages) FAIRCHILD

部件名	74LCX240MTC

功能描述	Low Voltage Octal Buffer/Line Driver with 5V Tolerant Inputs and Outputs

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制造商	FAIRCHILD [Fairchild Semiconductor]

网页	http://www.fairchildsemi.com

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74LCX240 Rev. 1.6.0

4

DC Electrical Characteristics

Note:

4. Outputs disabled or 3-STATE only.

AC Electrical Characteristics

Note:

5. 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).

Symbol

Parameter

VCC (V)

Conditions

TA = –40°C to +85°C

Units

Min.

Max.

VIH

HIGH Level Input Voltage

2.3–2.7

1.7

V

2.7–3.6

2.0

VIL

LOW Level Input Voltage

2.3–2.7

0.7

V

2.7–3.6

0.8

VOH

HIGH Level Output Voltage

2.3–3.6

IOH = –100µA

VCC – 0.2

V

2.3

IOH = –8mA

1.8

2.7

IOH = –12mA

2.2

3.0

IOH = –18mA

2.4

IOH = –24mA

2.2

VOL

LOW Level Output Voltage

2.3–3.6

IOL = 100µA

0.2

V

2.3

IOL = 8mA

0.6

2.7

IOL = 12mA

0.4

3.0

IOL = 16mA

0.4

IOL = 24mA

0.55

II

Input Leakage Current

2.3–3.6

0

≤ V

I ≤ 5.5V

±5.0

µA

IOFF

Power-Off Leakage Current

VI or VO = 5.5V

10

µA

ICC

Quiescent Supply Current

2.3–3.6

VI = VCC or GND

10

µA

3.6V

≤ V

I, VO ≤ 5.5V

(4)

±10

∆I

CC

Increase in ICC per Input

2.3–3.6

VIH = VCC = 0.6V

500

µA

Symbol

Parameter

TA = –40°C to +85°C, RL = 500Ω

Units

VCC = 3.3V ± 0.3V,

CL = 50pF

VCC = 2.7V,

CL = 50pF

VCC = 2.5V ± 0.2V,

CL = 30pF

Min.

Max.

Min.

Max.

Min.

Max.

tPHL, tPLH

Propagation Delay

1.5

6.5

1.5

7.5

1.5

7.8

ns

tPZL, tPZH

Output Enable Time

1.5

8.0

1.5

9.0

1.5

10.0

ns

tPLZ, tPHZ

Output Disable Time

1.5

7.0

1.5

8.0

1.5

8.4

ns

tOSHL, tOSLH

Output to Output Skew(5)

1.0

ns

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