74LVC2T45GD datasheet(6/36 Pages) PHILIPS

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74LVC_LVCH2T45

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Product data sheet

Rev. 4 — 20 August 2010

6 of 36

NXP Semiconductors

74LVC2T45; 74LVCH2T45

Dual supply translating transceiver; 3-state

10. Static characteristics

[1]

VCCO is the supply voltage associated with the output port.

[2]

VCCI is the supply voltage associated with the data input port.

[3]

To guarantee the node switches, an external driver must source/sink at least IBHLO/IBHHO when the input is in the range VIL to VIH.

Table 7.

Typical static characteristics at Tamb = 25 °C

At recommended operating conditions; voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

Min

Typ

Max

Unit

VOH

HIGH-level output voltage

VI = VIH or VIL

IO = −3 mA; VCCO =1.2 V

[1] -1.09

VOL

LOW-level output voltage

VI = VIH or VIL

IO = 3 mA; VCCO =1.2 V

[1] -0.07

input leakage current

DIR input; VI = 0 V to 5.5 V;

VCCI = 1.2 V to 5.5 V

[2] --

±1

μA

IBHL

bus hold LOW current

A or B port; VI =0.42V; VCCI =1.2 V

[2] -19

μA

IBHH

bus hold HIGH current

A or B port; VI =0.78V; VCCI =1.2 V

[2] -

−19

μA

IBHLO

bus hold LOW overdrive

current

A or B port; VCCI = 1.2 V

[2][3] -19

μA

IBHHO

bus hold HIGH overdrive

current

A or B port; VCCI = 1.2 V

[2][3] -

−19

μA

IOZ

OFF-state output current

A or B port; VO =0 V or VCCO;

VCCO = 1.2 V to 5.5 V

[1] --

±1

μA

IOFF

power-off leakage current

A port; VI or VO = 0 V to 5.5 V;

VCC(A) =0V; VCC(B) = 1.2 V to 5.5 V

±1

μA

B port; VI or VO = 0 V to 5.5 V;

VCC(B) =0V; VCC(A) = 1.2 V to 5.5 V

±1

μA

input capacitance

DIR input; VI = 0 V or 3.3 V;

VCC(A) =VCC(B) =3.3 V

-2.2

-pF

CI/O

input/output capacitance

A and B port; suspend mode;

VO =3.3 V or0 V; VCC(A) =VCC(B) =3.3 V

-6.0

-pF

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