Datasheet PI74ALVCH162827A, PI74ALVCH162827V Datasheet (PERICOM)

1

PS8095B 10/07/98

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20-Bit Buffer Driver

with 3-STATE Outputs

PI74ALVCH162827

Product Description

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

The PI74ALVCH162827 is a 20-bit non-inverting buffer/driver
designed for 2.3V to 3.6V VCC operation.

The buffer/driver is composed of two 10-bit sections with separate
output-enable signals. For either 10-bit buffer section, the two
output-enable (1OE1 and 1OE2 or 2OE1 and 2OE2) inputs must
both be low for the corresponding Y outputs to be active. If either
output-enable input is HIGH, the outputs of that 10-bit buffer
section are in the high-impedance state.

The outputs, which are designed to sink up to 12mA, include 26Ω
resistors to reduce overshoot and undershoot.

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

The PI74ALVCH162827 has Bus Hold which retains the data
inputs last state whenever the data input goes to high-impedance
preventing floating inputs and eliminating the need for pullup/
down resistors.

Product Features

• PI74ALVCH162827 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

• Output ports have equivalent 26Ω series resistors;

no external resistors are required

• 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:

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

Logic Block Diagram

1

56

55

1

A1

1

OE2

1

OE1

1

Y1

2

To 9 Other Channels

28

29

42

2

A1

2

OE2

2

OE1

2

Y1

15

To 9 Other Channels

PI74ALVCH162827

20-Bit Buffer Driver with 3-STATE Outputs

2

PS8095B 10/07/98

1OE1

1Y1

1Y2

GND

1Y3

1Y4

VCC

1Y5

1Y6

1Y7

GND

1Y8

1Y9

1Y10

2Y1

2Y2

2Y3

GND

2Y4

2Y5

2Y6

VCC

2Y7

2Y8

GND

2Y9

2Y10

2OE1

stupnIstuptuO

EO

1

EO

2

AY

LLL L

LLH H

HXX Z

XHX Z

Pin Name Description

OE Output Enable Input (Active LOW)
Ax Data Inputs
Yx 3-State Outputs
GND Ground
V

CC

Power

Product Pin Description Truth Table

(1)

Product Pin Configuration

Notes:

1. H = High Signal Level
L = Low Signal Level
X = Don't Care or Irrelevant
Z = High Impedance

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34

33
25
26
27
28

32

31

30

29

56-PIN

V56
A56

1OE2

1A1

1A2

GND

1A3

1A4

VCC

1A5

1A6

1A7

GND

1A8

1A9

1A10

2A1

2A2

2A3

GND

2A4

2A5

2A6

VCC

2A7

2A8

GND

2A9

2A10

2OE2

PI74ALVCH162827

20-Bit Buffer Driver with 3-STATE Outputs

3

PS8095B 10/07/98

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-= m V,A

CC

=.xaMot.niMV

CC

2.0-

V

HI

I,V7.1=

HO

4-=V,Am

CC

=V3.29.1

V

HI

I,V7.1=

HO

6-=V,Am

CC

=V3.27.1

V

HI

I,V0.2=

HO

6-=V,Am

CC

=V7.24.2

V

HI

I,V0.2=

HO

8-=V,Am

CC

=V0.30.2

V

HI

I,V0.2=

HO

21-=V,Am

CC

=V0.30.2

V

LO

tuptuO

WOL

egatloV

I

LO

001= m V,A

LI

=.xaMot.niM2.0

V

LI

I,V7.0=

LO

4=V,Am

CC

=V3.24.0

V

LI

I,V7.0=

LO

6=V,Am

CC

=V3.255.0

V

LI

I,V8.0=

LO

6=V,Am

CC

=V7.255.0

V

LI

I,V8.0=

LO

21=V,Am

CC

=V0.38.0

I

HO

)3(

tuptuO

HGIH

tnerruC

V

CC

V3.2=6-

Am

V

CC

V7.2=8-

V

CC

V0.3=21-

I

LO

)3(

tuptuO

WOL

tnerruC

V

CC

V3.2=6

V

CC

V7.2=8

V

CC

V0.3=21

PI74ALVCH162827

20-Bit Buffer Driver with 3-STATE Outputs

4

PS8095B 10/07/98

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

AY3.14.44.45.18.3

snt

NE

EOY5.12.72.66.12.5

t

SID

EOY4.29.52.58.17.4

noitpircseD

D /t Dv

)3(

llaFroesiRnoitisnarTtupnI001001001V/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

.pyT

C

DP

noitapissiDrewoP

ecnaticapaC

delbanEstuptuO

C

L

zHM01=f,Fp05=

6181

Fp

delbasiDstuptuO46

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 conditions shown as Max. or Min., 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(

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)2(

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tnerruCtupnIV

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V=

CC

V,DNGro

CC

V6.3=5±

mA

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= m ,A

V

NI

VroDNG=

CC

04

DI

CC

tupnIreptnerruCylppuS

HGIHLTT@

V

CC

V0.3=ot6.3V

VtatupnIenO

CC

-V6.0

VtastupnIrehtO

CC

DNGro

057

C

I

stupnIlortnoC

V

NI

V=

CC

V,DNGro

CC

V3.3=

5.3

FpstupnIataD6

C

O

stuptuOV

O

V=

CC

V,DNGro

CC

V3.3=7