74LVC4245AD 查看數據表（PDF） - NXP Semiconductors.

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74LVC4245AD

Octal dual supply translating transceiver; 3-state

NXP Semiconductors. 

NXP Semiconductors

74LVC4245A

Octal dual supply translating transceiver; 3-state

6. Functional description

Table 3.

Input

OE

L

L

H

Functional table[1]

DIR

L

H

X

Input/output

An

A=B

input

Z

[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.

7. Limiting values

Bn

input

B=A

Z

Table 4. Limiting values

In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).

Symbol

Parameter

Conditions

Min

Max

Unit

VCCA

VCCB

IIK

VI

IOK

VO

supply voltage 5 V port

supply voltage 3 V port

input clamping current

input voltage

output clamping current

output voltage

VI < 0 V

VO > VCC or VO < 0 V

output HIGH or LOW state

output 3-state

−0.5

−0.5

−50

[1] −0.5

-

[1] −0.5

[1] −0.5

+6.5

V

+4.6

V

-

mA

+6.5

V

±50

mA

VCC + 0.5 V

+6.5

V

IO

ICC

IGND

Tstg

Ptot

output current

supply current

ground current

storage temperature

power dissipation

VO = 0 V to VCC

Tamb = −40 °C to +125 °C

-

±50

mA

-

100

mA

−100

-

mA

−65

+150

°C

[2] -

500

mW

[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.

[2] For SO24 packages: above 70 °C the value of Ptot derates linearly with 8 mW/K.

For (T)SSOP24 packages: above 60 °C the value of Ptot derates linearly with 5.5 mW/K.

For DHVQFN24 packages: above 60 °C the value of Ptot derates linearly with 4.5 mW/K.

8. Recommended operating conditions

Table 5.

Symbol

VCCA

VCCB

VI

VO

Tamb

Recommended operating conditions

Parameter

Conditions

supply voltage 5 V port (for maximum VCCA ≥ VCCB; see Figure 5

speed performance)

supply voltage 3 V port (for low-voltage VCCA ≥ VCCB; see Figure 5

applications)

input voltage

for control inputs

output voltage

output HIGH or LOW state

output 3-state

ambient temperature

74LVC4245A_6

Product data sheet

Rev. 06 — 18 January 2008

Min

1.5

1.5

0

0

0

−40

Typ Max Unit

-

5.5

V

-

3.6

V

-

5.5

V

-

VCC

V

-

5.5

V

-

+125 °C

© NXP B.V. 2008. All rights reserved.

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