PI74LCX16827 [ETC]

Logic | 20-Bit Buffer ; 逻辑| 20位缓冲器\n


型号：	PI74LCX16827
厂家：	ETC
描述：	Logic \| 20-Bit Buffer 逻辑\| 20位缓冲器\n
文件：	总6页 (文件大小：144K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

PI74LCX16827

Fast CMOS 3.3V 20-Bit Buffers

Product Features

ProductDescription

• FunctionallycompatiblewithFCT3,LVT, and74series

Pericom Semiconductor’s PI74LCX series of logic circuits are

produced using the Company’s advanced 0.6 micron CMOS

technology, achieving industry leading speed grades.

16827 families of products

• Tri-State outputs

ThePI74LCX16827isa20-bitwidebusdriverdesignedtoprovide

buffering and high-performance bus interfacing for wide data/

address paths or busses with parity. Two pairs of nanded output

enable controls allow the device to be operated as two

10-bit buffers or as one 20-bit buffer. Signal pins are arranged in a

flow-through organization for ease of layout and hysteresis is

designed into all inputs to improve noise margin.

• 5V Tolerant inputs and outputs

• 2.0V-3.6V VCC supply operation

• Balanced sink and source output drives (24 mA)

• Low ground bounce outputs

• Power Down High Impedance inputs and outputs

• Supports live insertion

ThePI74LCX16827canbedrivenfromeither3.3Vor5.0Vdevices

allowing this device to be used as a translator in a mixed

3.3V/5.0Vsystem.

• ESDProtectionexceeds2000V,HumanBodyModel

200V, Machine Model

• Packagesavailable:

–56-pin240-milwideplasticTSSOP(A)

–56-pin300-milwideplasticSSOP(V)

Logic Block Diagram

1OE1

1OE2

2OE1

2OE2

1A1

1Y1

2Y1

2A1

TO 9 OTHER CHANNELS

PS2095B

09/20/02

PI74LCX16827

Fast CMOS 3.3V 20-Bit Buffers

Product Pin Description

Truth Table⁽¹⁾

Pin Name

xOE

Description

Inputs

xOE

Outputs

Output Enable Inputs (Active LOW)

Data Inputs

xOE

xAx

xYx

XAX

XYX

3-State Outputs

Note:

1. H = High Voltage Level, X = Don’t Care,

L = Low Voltage Level, Z = High Impedance

Product Pin Configuration

1OE2

1A1

1A2

GND

1A3

1A4

VCC

1A5

1A6

1A7

GND

1A8

1A9

1A10

2A1

2A2

2A3

GND

2A4

2A5

2A6

VCC

1OE1

1Y1

1Y2

GND

1Y3

1Y4

VCC

1Y5

1Y6

1Y7

GND

1Y8 12

1Y9 13

1Y10 14

2Y1 15

2Y2 16

2Y3 17

56-Pin

V56

A56

GND

2Y4

2Y5

2Y6

VCC

2Y7

34 2A7

33 2A8

32 GND

31 2A9

30 2A10

29 2OE2

2Y8

GND

2Y9

2Y10

2OE1

PS2095B

09/20/02

PI74LCX16827

Fast CMOS 3.3V 20-Bit Buffers

Maximum Ratings

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

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

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

Supply Voltage to Ground Potential (Inputs & Vcc Only)......–0.5V to +7.0V

Supply Voltage to Ground Potential (Outputs & D/O Only) ..–0.5V to +7.0V

DC Input Voltage ....................................................................–0.5V to +7.0V

DC Output Current .............................................................................. 120 mA

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

Note:

Stresses greater than those listed under MAXIMUM

RATINGS may cause permanent damage to the de-

vice. This is a stress rating only and functional opera-

tion of the device at these or any other conditions

above those indicated in the operational sections of

thisspecificationisnotimplied. Exposuretoabsolute

maximumratingconditionsforextendedperiodsmay

affect reliability.

Recommended Operating Conditions

Symbol

Parameter

Min.

2.0

1.5

Max.

3.6

Units

VCC

Supply Voltage

Operating

Data Retention

3.6

Input Voltage

5.5

Output Voltage

HIGH or LOW State

TRI-State

5.5

±24

±12

+85

OH/IOL

Output Current

CC = 3.0V-3.6V

CC = 2.7V

Free-Air Operating Temperature

Input Edge Rate

−40

°C

V = 0.8V-2.0V, VCC = 3.0V

ns/V

∆

t/∆V

PS2095B

09/20/02

PI74LCX16827

Fast CMOS 3.3V 20-Bit Buffers

DC Electrical Characteristics (Over the Operating Range, TA = −40°C to +85°C, VCC = 2.7V to 3.6V)

Parameters Description

Test Conditions⁽¹⁾

Min.

2.0

Typ⁽²⁾

Max.

—

Units

Input HIGH Voltage

Input LOW Voltage

Output HIGH Voltage

Guaranteed Logic HIGH Level

Guaranteed Logic LOW Level

—

0.8

—

CC = 2.7-3.6

OH = –0.1mA

OH = –12mA

OH = –18mA

OH = –24mA

OL = 0.1mA

OL = 12mA

OL = 16mA

OL = 24mA

CC-0.2

2.2

2.4

2.2

—

CC = 2.7

—

CC = 3.0

—

VOL

Output LOW Voltage

CC = 2.7-3.6

—

0.2

0.4

0.55

−1.2

±5

CC = 2.7

—

CC = 3.0

—

Clamp Diode Voltage

Input Leakage Current

Tri-State Output Leakage

VCC = Min., IIN = –18mA

—

−0.7

—

0 ≤ V

≤ 5.5V

Vcc = 2.7-3.6

—

IOZ

0 ≤ V

CC = 2.7-3.6

—

±5

= VIH or VIL

IOFF

Power Down Disable

CC = 0V, VIN or VOUT ≤ 5.5V

—

µA

ICC

Quiescent Power Supply

Current

CC = Max.

or V^CC

IN = GND

0.1

Quiescent Power Supply

Current

TTL Inputs HIGH

IN = VCC – 0.6V⁽³⁾

500

∆

ICC

Notes:

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

2. Typical values are at V^CC= 3.3V, +25°C ambient.

3. Per TTL driven input; all other inputs at Vcc or GND.

Capacitance

Parameters Description

Test Conditions

Typ.

Units

OUT

Input Capacitance

CC = Open, V

CC = 3.3V, V

= 0V or VCC

Output Capacitance

= 0V or VCC

Power Dissipation Capacitance

= 0V or VCC, F = 10 MHz

PS2095B

09/20/02

PI74LCX16827

Fast CMOS 3.3V 20-Bit Buffers

Switching Characteristics over Operating Range

CC = 3.3V ± 0.3V

Min.

1.5

CC = 2.7V

Parameters Description

Conditions

Min.

Max.

Units

PHL

Propagation Delay

Dxx to Oxx

= 50pF

= 500Ω

1.5

5.0

5.6

8.6

6.3

PZH

Output Enable Time

Output Disable Time

Output Skew⁽¹⁾

1.5

8.0

6.0

1.0

1.5

tPZH

PHZ

PLZ

(O)

Note:

1. Skew between any two outputs, of the same package, switching in the same direction.

Dynamic Switching Characteristics (TA = +25°C)

Parameters Description

Test Conditions⁽¹⁾

Typical

Units

CC = 3.3V, C

= 50pF

OLP

Dynamic LOW Peak Voltage

Dynamic LOW Valley Voltage

0.8

IH = 3.3V, VIL = 0V

CC = 3.3V, C = 50pF

VOLV

IH = 3.3V, VIL = 0V

Note:

1. Measured with n–1 outputs switching from HIGH-to-LOW or LOW-to-HIGH. The remaining output is measured in

the LOW state.

PS2095B

09/20/02

PI74LCX16827

Fast CMOS 3.3V 20-Bit Buffers

PackagingMechanical:56-PinTSSOP(A)Package

.236

.244

6.0

6.2

.547 13.9

.555 14.1

SEATING PLANE

.047

Max.

1.20

0.09

0.20

.004

.008

0.45 .018

0.75 .030

.0197

BSC

0.50

.007

.011

.002

.006

0.05

0.15

.319

BSC

0.17

0.27

8.1

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

PackagingMechanical:56-PinSSOP(V)Package

.291

.396

.299

7.39

7.59

.416

10.06

10.56

Gauge Plane

.02

.04

0.25

.010

0.51

1.01

18.29

18.54

.015 0.381

x 45˚

.720

.730

.008

0.20

.025 0.635

Nom.

.110 2.79

Max

.008

.0135

0.20

0.34

.025 BSC

0.635

0.20

0.40

.008

.016

0-8˚

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

OrderingInformation

Part Number

Description

Operating Range

PI74LCX16827A

PI74LCX16827V

56-pin, 240-mil wide plastic TSSOP

56-pin, 300-mil wide plastic SSOP

–40°C to 85°C

Pericom Semiconductor Corporation

2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com

PS2095B

09/20/02

相关型号：