Philips Semiconductors

Product specification

74ALVT162244

2.5V/3.3V 16-bit buffer/driver with
30

termination resistors (3-State)

1998 Oct 07

853-1841 20144

FEATURES

16-bit bus interface

3-State buffers

5V I/O compatibile

Output capability: +12mA/-12mA

TTL input and output switching levels

Input and output interface capability to systems at 5V supply

Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs

Live insertion/extraction permitted

Outputs include series resistance of 30

making external

terminating resistors unnecessary

Power-up 3-State

No bus current loading when output is tied to 5V bus

Latch-up protection exceeds 500mA per JEDEC Std 17

ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model

DESCRIPTION

The 74ALVT162244 is a high-performance BiCMOS product
designed for V

operation at 2.5V or 3.3V with I/O compatibility up

to 5V.

The 74ALVT162244 is designed with 30

series resistance in both

the High and Low states of the output. This design reduces line
noise in applications such as memory address drivers, clock drivers,
and bus receivers/transmitters.

This device is a 16-bit buffer and line driver featuring non-inverting
3-State bus outputs. The device can be used as four 4-bit buffers,
two 8-bit buffers, or one 16-bit buffer.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

TYPICAL

UNIT

SYMBOL

PARAMETER

amb

= 25

2.5V

3.3V

UNIT

PLH

PHL

Propagation delay
nAx to nYx

= 50pF

2.7
2.3

2.2
2.2

Input capacitance DIR, OE

= 0V or V

Out

Output capacitance

I/O

= 0V or V

CCZ

Total supply current

Outputs disabled

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

OUTSIDE NORTH AMERICA

NORTH AMERICA

DWG NUMBER

48-Pin Plastic SSOP Type III

C to +85

74ALVT162244 DL

AV162244 DL

SOT370-1

48-Pin Plastic TSSOP Type II

C to +85

74ALVT162244 DGG

AV162244 DGG

SOT362-1

LOGIC SYMBOL

1OE

1A0

1A1

1A2

1A3

2OE

2A0

2A1

2A2

2A3

1Y0

1Y1

1Y2

1Y3

2Y0

2Y1

2Y2

2Y3

3OE

3A0

3A1

3A2

3A3

4OE

4A0

4A1

4A2

4A3

3Y0

3Y1

3Y2

3Y3

4Y0

4Y1

4Y2

4Y3

SA00014

PIN DESCRIPTION

PIN NUMBER

SYMBOL

NAME AND FUNCTION

47, 46, 44, 43
41, 40, 38, 37
36, 35, 33, 32
30, 29, 27, 26

1A0 - 1A3,
2A0 - 2A3,
3A0 - 3A3,

4A0 - 4A3

Data inputs

2, 3, 5, 6

8, 9, 11, 12

13, 14, 16, 17
19, 20, 22, 23

1Y0 - 1Y3,
2Y0 - 2Y3,
3Y0 - 3Y3,

4Y0 - 4Y3

Data outputs

1, 48

25, 24

1OE, 2OE, 3OE,

4OE

Output enables

4, 10, 15, 21

28, 34, 39, 45

GND

Ground (0V)

7, 18, 31, 42

Positive supply voltage

Philips Semiconductors

Product specification

74ALVT162244

2.5V/3.3V 16-bit buffer/driver with
30

termination resistors (3-State)

1998 Oct 07

LOGIC SYMBOL (IEEE/IEC)

EN1

EN2

EN3

EN4

SA00019

1OE

2OE

3OE

4OE

1A1

1A2

1A3

1A4

2A1

2A2

2A3

3A1

3A2

3A3

3A4

4A1

4A2

4A3

4A4

1Y1

1Y2

1Y3

1Y4

2Y1

2Y2

2Y3

2Y4

3Y1

3Y2

3Y3

3Y4

4Y1

4Y4

2A4

4Y2

4Y3

SCHEMATIC OF EACH OUTPUT

OUTPUT

SW00007

PIN CONFIGURATION

1OE

1Y0

1Y1

GND

1Y2

1Y3

2Y0

2Y1

GND

2Y2

2Y3

3Y0

3Y1

GND

3Y4

VCC

4Y0

VCC

3Y2

4Y1

GND

4Y3

4OE

4Y2

2OE

1A0

1A1

GND

1A2

1A3

2A0

2A1

GND

2A2

2A3

3A0

3A1

GND

3A3

4A0

VCC

3A2

4A1

GND

4A3

3OE

4A2

SA00013

FUNCTION TABLE

INPUTS

OUTPUTS

nOE

nAx

nYx

H = High voltage level
L = Low voltage level
X = Don't care
Z = High Impedance "off " state

Philips Semiconductors

Product specification

74ALVT162244

2.5V/3.3V 16-bit buffer/driver with
30

termination resistors (3-State)

1998 Oct 07

ABSOLUTE MAXIMUM RATINGS

1, 2

SYMBOL

PARAMETER

CONDITIONS

RATING

UNIT

DC supply voltage

-0.5 to +4.6

DC input diode current

< 0

-50

DC input voltage

-0.5 to +7.0

DC output diode current

< 0

-50

OUT

DC output voltage

Output in Off or High state

-0.5 to +7.0

DC output current

Output in Low state

128

OUT

DC output current

Output in High state

-64

stg

Storage temperature range

-65 to +150

NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the

device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.

2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction

temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150

3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.

RECOMMENDED OPERATING CONDITIONS

SYMBOL

PARAMETER

2.5V RANGE LIMITS

3.3V RANGE LIMITS

UNIT

SYMBOL

PARAMETER

MIN

MAX

MIN

MAX

UNIT

DC supply voltage

2.3

2.7

3.0

3.6

Input voltage

5.5

High-level input voltage

1.7

2.0

Input voltage

0.7

0.8

High-level output current

Low-level output current

Input transition rise or fall rate; Outputs enabled

ns/V

amb

Operating free-air temperature range

+85

Philips Semiconductors

Product specification

74ALVT162244

2.5V/3.3V 16-bit buffer/driver with
30

termination resistors (3-State)

1998 Oct 07

DC ELECTRICAL CHARACTERISTICS (3.3V

0.3V RANGE)

LIMITS

SYMBOL

PARAMETER

TEST CONDITIONS

Temp = -40

C to +85

UNIT

MIN

TYP

MAX

Input clamp voltage

= 3.0V; I

= 18mA

0.85

1.2

High-level output voltage

= 3.0V; I

= 12mA

2.0

2.5

Lowlevel output voltage

= 3.0V; I

= 12mA

0.5

0.8

= 3.6V; V

= V

or GND

Control pins

0.1

Input leakage current

= 0 or 3.6V; V

= 5.5V

01.

In ut leakage current

= 3.6V; V

= V

Data pins

0.5

= 3.6V; V

= 0V

Data ins

0.1

-5

OFF

Off current

= 0V; V

or V

= 0 to 4.5V

0.1

100

Bus Hold current

= 3V; V

= 0.8V

130

HOLD

Bus Hold current

Data inputs

= 3V; V

= 2.0V

140

Data inputs

= 0V to 3.6V; V

= 3.6V

500

Current into an output in the
High state when V

> V

= 5.5V; V

= 3.0V

125

PU/PD

Power up/down 3-State output
current

1.2V; V

= 0.5V to V

; V

= GND or V

OE/OE = Don't care

100

OZH

3-State output High current

= 3.6V; V

= 3.0V; V

= V

or V

0.5

OZL

3-State output Low current

= 3.6V; V

= 0.5V; V

= V

or V

0.5

CCH

= 3.6V; Outputs High, V

= GND or V

CC,

O =

0.05

0.1

CCL

Quiescent supply current

= 3.6V; Outputs Low, V

= GND or V

CC,

O =

3.7

5.0

CCZ

= 3.6V; Outputs Disabled; V

= GND or V

CC,

O =

0.06

0.1

Additional supply current per
input pin

= 3V to 3.6V; One input at V

0.6V,

Other inputs at V

or GND

0.05

0.4

NOTES:
1. All typical values are at V

= 3.3V and T

amb

= 25

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

or GND

3. This parameter is valid for any V

between 0V and 1.2V with a transition time of up to 10msec. From V

= 1.2V to V

= 3.3V

0.3V a

transition time of 100

sec is permitted. This parameter is valid for T

amb

= 25

C only.

4. Unused pins at V

or GND.

5. I

CCZ

is measured with outputs pulled up to V

or pulled down to ground.

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

AC CHARACTERISTICS (3.3V

0.3V RANGE)

GND = 0V; t

= t

= 2.5ns; C

= 50pF; R

= 500

; T

amb

= 40

C to +85

LIMITS

SYMBOL

PARAMETER

WAVEFORM

= 3.3V

0.3V

UNIT

MIN

TYP

MAX

PLH

PHL

Propagation delay
nAx to nBx or nBx to nAx

1.0
1.0

2.2
2.2

3.3
3.3

PZH

PZL

Output enable time
to High and Low level

1.5
1.5

3.2
2.4

4.9
3.7

PHZ

PLZ

Output disable time
from High and Low Level

1.5
1.5

3.1
2.5

4.7
4.1

NOTE:
1. All typical values are at V

= 3.3V and T

amb

= 25

Part Number 74ALVT162244