74LVT646DB datasheet(6/14 Pages) PHILIPS

No. de pieza	74LVT646DB

Descripción Electrónicos	3.3V Octal bus transceiver/register 3-State

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Fabricante Electrónico	PHILIPS [NXP Semiconductors]

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Philips Semiconductors

Product specification

74LVT646

3.3V Octal bus transceiver/register (3-State)

1998 Feb 19

6

DC ELECTRICAL CHARACTERISTICS

LIMITS

SYMBOL

PARAMETER

TEST CONDITIONS

Temp = -40

°C to +85°C

UNIT

MIN

TYP

NO TAG

MAX

VIK

Input clamp voltage

VCC = 2.7V; IIK = –18mA

–0.9

–1.2

V

VCC = 2.7 to 3.6V; IOH = –100µA

VCC-0.2

VCC-0.1

VOH

High-level output voltage

VCC = 2.7V; IOH = –8mA

2.4

2.5

V

VCC = 3.0V; IOH = –32mA

2.0

2.2

VCC = 2.7V; IOL = 100µA

0.1

0.2

VCC = 2.7V; IOL = 24mA

0.3

0.5

VOL

Low–level output voltage

VCC = 3.0V; IOL = 16mA

0.25

0.4

V

VCC = 3.0V; IOL = 32mA

0.3

0.5

VCC = 3.0V; IOL = 64mA

0.4

0.55

VRST

Power-up output low voltage5

VCC = 3.6V; IO = 1mA; VI = GND or VCC

0.13

0.55

V

VCC = 3.6V; VI = VCC or GND

Control pins

±0.1

±1

VCC = 0 or 3.6V; VI = 5.5V

Control pins

1

10

II

Input leakage current

VCC = 3.6V; VI = 5.5V

1

20

µA

VCC = 3.6V; VI = VCC

I/O Data pins4

0.1

1

VCC = 3.6V; VI = 0

–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

15

±100

µA

ICCH

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

0.13

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 = 0

0.13

0.19

∆ICC

Additional supply current per

input pin2

VCC = 3V 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 and Tamb = 25°C.

2. This is the increase in supply current for each input at the specified voltage level other than VCC or GND

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 ± 0.3V 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. For valid test results, data must not be loaded into the flip-flops (or latches) after applying power.

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

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