74LVCH32244A_15 datasheet(6/14 Pages) PHILIPS

Part #	74LVCH32244A

Description	32-bit buffer/line driver; 5 V input/output tolerant; 3-state

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74LVCH32244A

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Product data sheet

Rev. 3 — 16 December 2011

6 of 14

NXP Semiconductors

74LVCH32244A

32-bit buffer/line driver; 5 V input/output tolerant; 3-state

[1]

All typical values are measured at VCC = 3.3 V and Tamb =25 C.

[2]

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

[3]

Valid for data inputs only. Control inputs do not have a bus hold circuit.

[4]

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

[5]

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

10. Dynamic characteristics

IBHH

bus hold HIGH

current [3][4]

VCC = 1.65; VI = 1.07 V

10

-

10

-

A

VCC = 2.3; VI = 1.7 V

30

-

25

-

A

VCC = 3.0; VI = 2.0 V

75

-

60

-

A

IBHLO

bus hold LOW

overdrive

current [3][5]

VCC = 1.95 V

200

-

200

-

A

VCC = 2.7 V

300

-

300

-

A

VCC = 3.6 V

500

-

500

-

A

IBHHO

bus hold HIGH

overdrive

current [3][5]

VCC = 1.95 V

200

-

200

-

A

VCC = 2.7 V

300

-

300

-

A

VCC = 3.6 V

500

-

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

Table 7.

Dynamic characteristics

Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 6.

Symbol Parameter

Conditions

Tamb = 40 C to +85 C 40 C to +125 C Unit

Min

Typ[1]

Max

Min

Max

tpd

propagation

delay

nAntonYn; see Figure 4

[2]

VCC = 1.2 V

-

11.0

-

ns

VCC = 1.65 V to 1.95 V

1.5

4.8

10.7

1.5

11.3

ns

VCC = 2.3 V to 2.7 V

1.0

2.6

5.3

1.0

5.9

ns

VCC = 2.7 V

1.0

2.6

4.7

1.0

6.0

ns

VCC = 3.0 V to 3.6 V

1.1

2.2

4.1

1.1

5.5

ns

ten

enable time

nOE to nYn; see Figure 5

[2]

VCC = 1.2 V

-

15.0

-

ns

VCC = 1.65 V to 1.95 V

1.5

6.2

12.1

1.5

12.7

ns

VCC = 2.3 V to 2.7 V

1.0

3.5

6.4

1.0

7.1

ns

VCC = 2.7 V

1.0

3.2

5.8

1.0

7.5

ns

VCC = 3.0 V to 3.6 V

1.0

2.8

4.6

1.0

6.0

ns

tdis

disable time

nOE to nYn; see Figure 5

[2]

VCC = 1.2 V

-

10.0

-

ns

VCC = 1.65 V to 1.95 V

2.5

4.4

8.7

2.5

9.4

ns

VCC = 2.3 V to 2.7 V

1.0

2.4

4.9

1.0

5.3

ns

VCC = 2.7 V

1.0

3.2

6.2

1.0

8.0

ns

VCC = 3.0 V to 3.6 V

1.8

3.1

5.2

1.8

6.5

ns

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