74LVC244AD datasheet(7/19 Pages) NXP

7 / 19 page

74LVC_LVCH244A

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Product data sheet

Rev. 8 — 26 June 2013

7 of 19

NXP Semiconductors

74LVC244A; 74LVCH244A

Octal buffer/line driver; 3-state

[1]

All typical values are measured at VCC = 3.3 V (unless stated otherwise) and Tamb =25 C.

[2]

The bus hold circuit is switched off when VI >VCC allowing 5.5 V on the input terminal.

[3]

Valid for data inputs of bus hold parts only (74LVCH244A). Note that control inputs do not have a bus hold circuit.

[4]

The specified sustaining current at the data input holds the input below the specified VI level.

[5]

The specified overdrive current at the data input forces the data input to the opposite input state.

input

leakage

current

VI = 5.5 V or GND;

VCC =3.6 V

[2]

0.1

5-

20

A

IOZ

OFF-state

output

current

VI =VIH or VIL;

VO = 5.5 V or GND;

VCC =3.6 V

[2]

0.1

5-

20

A

IOFF

power-off

leakage

current

VI or VO =5.5 V; VCC = 0.0 V

0.1

10

20

A

ICC

supply

current

VI =VCC or GND; IO =0A;

VCC =3.6 V

-0.1

A

I

additional

supply

current

per input pin;

VI =VCC  0.6 V; IO =0A;

VCC = 2.7 V to 3.6 V

500

5000

A

input

capacitance

-4.0

IBHL

bus hold

LOW current

VCC = 1.65 V; VI = 0.58 V

[3][4]

A

VCC = 2.3 V; VI = 0.7 V

A

VCC = 3.0 V; VI = 0.8 V

A

IBHH

bus hold

HIGH

current

VCC = 1.65 V; VI = 1.07 V

[3][4]

10

A

VCC = 2.3 V; VI = 1.7 V

30

25

A

VCC = 3.0 V; VI = 2.0 V

75

60

A

IBHLO

bus hold

LOW

overdrive

current

VCC = 1.95 V

[3][5]

200

A

VCC = 2.7 V

300

A

VCC = 3.6 V

500

A

IBHHO

bus hold

HIGH

overdrive

current

VCC = 1.95 V

[3][5]

200

A

VCC = 2.7 V

300

A

VCC = 3.6 V

500

A

Table 6.

Static characteristics …continued

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

Symbol Parameter

Conditions

40 C to +85 C

40 C to +125 C

Unit

Min

Typ[1]

Max

Min

Max

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