74LCXZ2245 datasheet(4/11 Pages) FAIRCHILD

Part #	74LCXZ2245

Description	Low Voltage Bidirectional Transceiver with 5V Tolerant Inputs and Outputs and 26??Series Resistors in B Outputs

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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4

DC Electrical Characteristics (Continued)

Note 6: Outputs disabled or 3-STATE only.

AC Electrical Characteristics

Note 7: 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

Conditions

VCC

TA = −40°C to +85°C

Units

(V)

Min

Max

VOL

LOW Level Output Voltage

IOL = 100 µA

2.7 - 3.6

0.2

V

B Outputs

IOL = 4 mA

2.7

0.4

IOL = 6 mA

3.0

0.55

IOL = 8 mA

2.7

0.6

IOL = 12 mA

3.0

0.8

LOW Level Output Voltage

IOL = 100 µA

2.7 - 3.6

0.2

A Outputs

IOL = 12 mA

2.7

0.4

IOL = 16 mA

3.0

0.4

IOL = 24 mA

3.0

0.55

II

Input Leakage Current

0

≤ V

I ≤ 5.5V

2.7 - 3.6

±5.0

µA

IOZ

3-STATE I/O Leakage

0

≤ V

O ≤ 5.5V

2.7 - 3.6

±5.0

µA

VI = VIH or VIL

IOFF

Power-Off Leakage Current

VI or VO = 5.5V

0

10

µA

IPU/PD

Power Up/Down

VO = 0.5V to VCC

0 - 1.5

±5.0

µA

3-STATE Output Current

VI = VCC or GND

ICC

Quiescent Supply Current

VI = VCC or GND

2.7 - 3.6

225

µA

3.6V

≤ V

I, VO ≤ 5.5V (Note 6)

2.7 - 3.6

±225

∆I

CC

Increase in ICC per Input

VIH = VCC −0.6V

2.7 - 3.6

500

µA

Symbol

Parameter

TA = −40°C to +85°C, RL = 500Ω

Units

VCC = 3.3V ± 0.3V

VCC = 2.7V

CL = 50 pF

MinMax

tPHL

Propagation Delay

1.5

8.0

1.5

9.0

ns

tPLH

A to B

tPHL

Propagation Delay

1.5

7.0

1.5

8.0

tPLH

B to A

tPZL

Output Enable Time

1.5

9.5

1.5

10.5

ns

tPZH

A to B

tPZL

Output Enable Time

1.5

8.5

1.5

9.5

ns

tPZH

B to A

tPLZ

Output Disable Time

1.5

7.5

1.5

8.5

ns

tPHZ

A to B

tPLZ

Output Disable Time

1.5

7.5

1.5

8.5

ns

tPHZ

B to A

tOSHL

Output to Output Skew

1.0

ns

tOSLH

(Note 7)

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