Datasheet PI74ALVCH16245A, PI74ALVCH16245V Datasheet (PERICOM)

1

PS8088C 04/10/00

Product Description

Pericom Semiconductors PI74ALVCH series of logic circuits are
produced using the Companys advanced 0.5 micron CMOS
technology, achieving industry leading speed grades.

The PI74ALVCH16245 is a 16-bit bidirectional transceiver
designed for asynchronous two-way communication between
data buses. The direction control input pin (xDIR) determines
the direction of data flow through the bidirectional transceiver. The
Direction and Output Enable controls are designed to operate
this device as either two independent 8-bit transceivers or one
16-bit transceiver. The output enable (OE) input, when HIGH,
disables both A and B ports by placing them in HIGH Z condition.

To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pull-up resistor; the
minimum value of the resistor is determined by the current sinking
ability of the driver.

Active bus-hold circuitry is provided to hold unused or floating
data inputs at a valid logic level.

Product Features

• PI74ALVCH16245 is designed for low voltage operation

• V

CC

= 2.3V to 3.6V

• Hysteresis on all inputs

• Typical V

OLP

(Output Ground Bounce)

< 0.8V at VCC = 3.3V, TA = 25°C

• Typical V

OHV

(Output VOH Undershoot)

< 2.0V at VCC = 3.3V, TA = 25°C

• Bus Hold retains last active bus state during 3-STATE,

eliminating the need for external pullup resistors

• Industrial operation at 40°C to +85°C

• Packages available:

 48-pin 240 mil wide plastic TSSOP (A)
 48-pin 300 mil wide plastic SSOP (V)

Logic Block Diagram

1B0

1A0

1

OE

1

DIR

1B1

1A1

1B2

1A2

1B3

1A3

1B4

1A4

1B5

1A5

1B6

1A6

1B7

1A7

2B0

2A0

2

OE

2

DIR

2B1

2A1

2B2

2A2

2B3

2A3

2B4

2A4

2B5

2A5

2B6

2A6

2B7

2A7

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3.3V 16-Bit Bidirectional Transceiver
with 3-State Outputs

PI74ALVCH16245

2

PS8088C 04/10/00

PI74ALVCH16245

3.3V 16-Bit Bidirectional Tranceiver
with 3-State Outputs

Pin Name Description

xOE 3-State Output Enable Inputs (Active LOW)
xDIR Direction Control Input
xAx Side A Inputs or 3-STATE Inputs
xBx Side B Outputs or 3-STATE Outputs
GND Ground
V

CC

Power

stupnI

)1(

stuptuO

)1(

EOxRIDx

LL AsuBotataDBsuB

LH BsuBotataDAsuB

HX Z

Product Pin Description Truth Table

(1)

Product Pin Configuration

Notes:

1. H = High Voltage Level
L = Low Voltage Level
X = Don't Care
Z = High Impedance

48-pin

A, V

PI74ALVCH16245

3.3V 16-Bit Bidirectional Tranceiver
with 3-State Outputs

3

PS8088C 04/10/00

Storage Temperature ................................................... 65°C to +150°C

Ambient Temperature with Power Applied ................... 40°C to +85°C

Input Voltage Range, V

IN

..............................................

0.5V to V

CC

+4.6V

Output Voltage Range, V

OUT

.......................................

0.5V to V

CC

+0.5V

DC Input Voltage ............................................................ 0.5V to +5.0V

DC Output Current ....................................................................... 50 mA

Power Dissipation .......................................................................... 1.0W

Note:

Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the device.
This is a stress rating only and functional operation of the
device at these or any other conditions above those
indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.

DC Electrical Characteristics (Over the Operating Range, T

A

= 40°C to +85°C, VCC = 3.3V ±10%)

Maximum Ratings

(Above which the useful life may be impaired. For user guidelines, not tested.)

sretemaraPnoitpircseDsnoitidnoCtseT

)1(

.niM.pyT

)2(

.xaMstinU

V

CC

egatloVylppuS3.26.3

V

V

HI

)3(

egatloVHGIHtupnI

V

CC

V7.2otV3.2=7.1

V

CC

V6.3otV7.2=0.2

V

LI

)3(

egatloVWOLtupnI

V

CC

V7.2otV3.2=7.0

V

CC

V6.3otV7.2=8.0

V

NI

)3(

egatloVtupnI0V

CC

V

TUO

)3(

egatloVtuptuO0V

CC

V

HO

tuptuO

HGIH

egatloV

I

HO

001-= µ V,A

CC

=.xaMot.niMV

CC

2.0-

V

HI

I,V7.1=

HO

6-=V,Am

CC

=V3.20.2

V

HI

I,V7.1=

HO

21-=V,Am

CC

=V3.27.1

V

HI

I,V0.2=

HO

21-=V,Am

CC

=V7.22.2

V

HI

I,V0.2=

HO

21-=V,Am

CC

=V0.34.2

V

HI

I,V0.2=

HO

42-=V,Am

CC

=V0.30.2

V

LO

tuptuO

WOL

egatloV

I

LO

001= µ V,A

LI

=.xaMot.niM2.0

V

LI

I,V7.0=

LO

6=V,Am

CC

=V3.24.0

V

LI

I,V7.0=

LO

21=V,Am

CC

=V3.27.0

V

LI

I,V8.0=

LO

21=V,Am

CC

=V7.24.0

V

LI

I,V8.0=

LO

42=V,Am

CC

=V0.355.0

I

HO

)3(

tuptuO

HGIH

tnerruC

V

CC

V3.2=21

Am

V

CC

V7.2=21

V

CC

V0.3=42

I

LO

)3(

tuptuO

WOL

tnerruC

V

CC

V3.2=21

V

CC

V7.2=21

V

CC

V0.3=42

4

PS8088C 04/10/00

PI74ALVCH16245

3.3V 16-Bit Bidirectional Tranceiver
with 3-State Outputs

sretemaraP)tupnI(morF)tuptuO(oT

V

CC

V2.0±V5.2=V

CC

V7.2=VCCV3.0±V3.3=

stinU

.niM

)2(

.xaM.niM

)2(

.xaM.niM

)2(

.xaM

t

DP

BroAAroB0.17.36.30.13

snt

NE

EOAroB0.17.54.50.14.4

t

SID

EOAroB5.12.56.40.11.4

noitpircseD

∆ /t ∆v

)3(

llaFroesiRnoitisnarTtupnI0010010 01V/sn

Switching Characteristics over Operating Range

(1)

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax [phone] • http://www.pericom.com

Operating Characteristics, TA = 25ºC

retemaraPsnoitidnoCtseT

V

CC

V2.0±V5.2=VCCV3.0±V3.3=

stinU

lacipyT

C

DP

noitapissiDrewoP

ecnaticapaC

delbanEstuptuO

C

L

Fp05=

zHM01=f

2292

Fp

delbasiDstuptuO45

Notes:

1. See test circuit and waveforms.

2. Minimum limits are guaranteed but not tested on Propagation Delays.

3. Recommended operating condition.

Notes:

1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.

2. Typical values are at VCC = 3.3V, +25°C ambient and maximum loading.

3. Unused Control Inputs must be held HIGH or LOW to prevent them from floating.

DC Electrical Characteristics-Continued (Over the Operating Range, T

A

= 40°C to +85°C, VCC = 3.3V ±10%)

sretemaraPnoitpircseDsnoitidnoCtseT

)1(

.niM.pyT

)2(

.xaMstinU

I

NI

tnerruCtupnIV

NI

V=

CC

V,DNGro

CC

V6.3=5±

µA

I

NI

(

HOLD

)

tupnI

dloH

tnerruC

V

NI

V,V7.0=

CC

V3.2=54

V

NI

V,V7.1=

CC

V3.2=54

V

NI

V,V8.0=

CC

V0.3=57

V

NI

V,V0.2=

CC

V0.3=57

V

NI

0=otV,V6.3

CC

V6.3=005±

I

ZO

)stuptuOETATS-3(tnerruCtuptuOV

TUO

V=

CC

ro,DNGVCCV6.3=01±

I

CC

tnerruCylppuS

V

CC

=V6.3I,

TUO

0= µ ,A

V

NI

VroDNG=

CC

04

∆I

CC

tupnIreptnerruCylppuS

HGIHLTT@

V

CC

V0.3=ot6.3V

VtatupnIenO

CC

-V6.0

VtastupnIrehtO

CC

DNGro

057

C

I

stupnIlortnoCV

NI

V=

CC

V,DNGro

CC

V3.3=4

Fp

C

OI

stroPBroAV

O

V=

CC

V,DNGro

CC

V3.3=7