74LVT2244 datasheet(4/10 Pages) PHILIPS

Part #	74LVT2244

Description	3.3V Octal buffer/line driver with 30ohm series termination resistors 3-State

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Manufacturer	PHILIPS [NXP Semiconductors]

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Philips Semiconductors

Product specification

74LVT2244

3.3V Octal buffer/line driver with 30

Ω

series termination resistors (3-State)

1998 Feb 19

4

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

LIMITS

UNIT

SYMBOL

PARAMETER

MIN

MAX

UNIT

VCC

DC supply voltage

2.7

3.6

V

VI

Input voltage

0

5.5

V

VIH

High-level input voltage

2.0

V

VIL

Low-level Input voltage

0.8

V

IOH

High-level output current

–12

mA

IOL

Low-level output current

12

mA

∆t/∆v

Input transition rise or fall rate; outputs enabled

10

ns/V

Tamb

Operating free-air temperature range

–40

+85

°C

DC ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL

PARAMETER

TEST CONDITIONS

Tamb = -40°C to +85°C

UNIT

MIN

TYP1

MAX

VIK

Input clamp voltage

VCC = 2.7V; II = –18mA

0.9

–1.2

V

VOH

High-level output voltage

VCC = 3V; IOH = –12mA

2

2.5

V

VOL

Low-level output voltage

VCC = 3V; IOL = 12mA

0.8

V

VCC = 0 or 3.6V; VI = 5.5V

1

10

II

Input leakage current

VCC = 3.6V; VI = VCC or GND

Control pins

±0.1

±1

µA

II

In ut leakage current

VCC = 3.6V; VI = VCC

Data pins4

0.1

1

µA

VCC = 3.6V; VI = 0

Data ins4

–1

-5

IOFF

Output off current

VCC = 0V; VI or VO = 0 to 4.5V

1

±100

µA

6

VCC = 3V; VI = 0.8V

75

150

IHOLD

Bus Hold current A inputs6

VCC = 3V; VI = 2.0V

–75

–150

µA

VCC = 0V to 3.6V; VCC = 3.6V

±500

IEX

Current into an output in the

High state when VO > VCC

VO = 5.5V; VCC = 3.0V

60

125

µA

IPU/PD

Power up/down 3-State

output current3

VCC = ≤ 1.2V; VO = 0.5V to VCC; VI = GND or VCC;

OE/OE = Don’t care

±1

±100

µA

IOZH

3-State output High current

VCC = 3.6V; VO = 3.0V

1

5

µA

IOZL

3-State output Low current

VCC = 3.6V; VO = 0.5V

–1

–5

µA

ICCH

VCC = 3.6V; Outputs High, VI = GND or VCC, IO = 0

0.12

0.19

ICCL

Quiescent supply current

VCC = 3.6V; Outputs Low, VI = GND or VCC, IO = 0

3

12

mA

ICCZ

VCC = 3.6V; Outputs Disabled; VI = GND or VCC, IO = 05

0.12

0.19

∆ICC

Additional supply current

per input pin2

VCC = 3.0 to 3.6V; One input at VCC -0.6V;

Other inputs at VCC or GND

0.1

0.2

mA

NOTES:

1. All typical values are at Tamb = 25°C.

2. This is the increase in supply current for each input at VCC –0.6V.

3. This parameter is valid for any VCC between 0V and 1.2V with a transition time of up to 10msec. From VCC = 1.2V to VCC = 3.3V ± 10% a

transition time of 100

µsec is permitted. This parameter is valid for Tamb = 25°C only.

4. Unused pins at VCC or GND

5. ICCZ is measured with outputs pulled to VCC or GND.

6. This is the bus hold overdrive current required to force the input to the opposite logic state.

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