PI74LPT16244AVE [PERICOM]

Bus Driver, LPT Series, 4-Func, 4-Bit, True Output, CMOS, PDSO48, 0.300 INCH, 0.635 MM PITCH, PLASTIC, SSOP-48;


型号：	PI74LPT16244AVE
厂家：	PERICOM SEMICONDUCTOR CORPORATION
描述：	Bus Driver, LPT Series, 4-Func, 4-Bit, True Output, CMOS, PDSO48, 0.300 INCH, 0.635 MM PITCH, PLASTIC, SSOP-48 驱动器
文件：	总5页 (文件大小：140K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Product Features:

CompatiblewithLCXandLVTfamiliesofproducts

Supports 5V Tolerant Mixed Signal Mode Operation

Input can be 3V or 5V

ProductDescription:

Pericom Semiconductors PI74LPT series of logic circuits are pro-

duced in the Companys advanced 0.6 micron CMOS technology,

achieving industry leading speed grades.

Output can be 3V or connected to 5V bus

Advanced Low Power CMOS Operation

Excellentoutputdrivecapability:

ThePI74LPT16244isa16-bitbuffer/linedriverdesignedfor driving

highcapacitivememoryloads.Withitsbalanced-drivecharacteristics,

this high-speed, low power device provides lower ground bounce,

transmission line matching of signals, fewer line reflections and

lowerEMIandRFIeffects. Thismakesitidealfordrivingon-board

buses and transmission lines. This device is designed with three-

statecontrolstooperateinaQuad-Nibble,Dual-Byte,orasingle16-

bit word mode.

Balanced drives (24 mA sink and source)

Pin compatible with industry standard double-density

pinouts

Low ground bounce outputs

Hysteresis on all inputs

Industrial operating temperature range: 40°C to +85°C

Multiple center pins and distributed Vcc/GND pins

minimizeswitchingnoise

ThePI74LPT16244canbedrivenfromeither3.3Vor5.0Vdevices

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

3.3/5.0Vsystem.

Packagesavailable:

48-pin240milwidethinplasticTSSOP(A)

48-pin300milwideplasticSSOP(V)

Logic Block Diagram

1OE

3OE

4OE

PS2067A

01/15/97

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Product Pin Description

Truth Table

Inputs⁽¹⁾

Outputs⁽¹⁾

Pin Name

xOE

Description

XOE

xAx

xYx

3-State Output Enable Inputs (Active LOW)

xAx

Inputs

xYx

3-State Outputs

Ground

GND

VCC

Power

Note:

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

L = Low Voltage Level, Z = High Impedance

Product Pin Configuration

1OE

2OE

1A0

1A1

GND

1A2

1A3

VCC

2A0

2A1

GND

2A2

2A3

3A0

3A1

GND

3A2

3A3

VCC

1Y0

1Y1

GND

1Y2

1Y3

VCC

2Y0

2Y1

GND

2Y2

48-PIN

V48

A48

2Y3

3Y0

3Y1

GND

3Y2

3Y3

VCC

4Y0

4Y1

4A0

4A1

GND

4Y2

4Y3

4A2

4A3

3OE

4OE

Capacitance (TA = 25°C, f = 1 MHz)

Parameters⁽¹⁾

Description

Test Conditions

Typ

Max.

Units

CIN

Input Capacitance

Output Capacitance

VIN = 0V

4.5

5.5

C^OUT

VOUT = 0V

Note:

1. This parameter is determined by device characterization but is not production tested.

PS2067A 01/15/97

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Maximum Ratings

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

Storage Temperature............................................................–55°C to +125°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.

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. Typ⁽²⁾Max. Units

VIH

Input HIGH Voltage (Input pins)

InputHIGHVoltage(I/Opins)

Input LOW Voltage

GuaranteedLogicHIGHLevel

2.2

2.0

0.5

5.5

0.8

VIL

IIH

IIL

GuaranteedLogicLOWLevel

(Input and I/O pins)

Input HIGH Current (Input pins)

InputHIGHCurrent(I/Opins)

Input LOW Current (Input pins)

Input LOW Current (I/O pins)

High Impedance Output Current

(3-State Output pins)

ClampDiodeVoltage

OutputHIGHCurrent

Output LOW Current

OutputHIGHVoltage

VCC=Max.

VIN=5.5V

±1

µA

VCC=Max.

VIN =VCC

VCC=Max.

VCC =Max.

VIN=GND

VOUT =5.5V

VOUT =GND

I^OZH

IOZL

VIK

IODH

IODL

VOH

±1

VCC = Min., IIN =18mA

VCC =3.3V,VIN =VIH orVIL,VO =1.5V⁽³⁾

0.7

1.2

110

200

VCC =Min.

IOH = 0.1 mA Vcc-0.2

VIN =VIH orVIL

VCC =3.0V,

VIN =VIH orVIL

VCC =Min.

VIN =VIH orVIL

IOH = 3 mA

IOH = 8 mA

IOH = 24 mA

IOL = 0.1 mA

IOL = 16 mA

IOL = 24 mA

2.4

2.4⁽⁵⁾

2.0

3.0

0.2

0.4

0.5

±100

VOL

Output LOW Voltage

0.2

0.3

240

IOS

IOFF

Short Circuit Current⁽⁴⁾

PowerDownDisable

Input Hysteresis

VCC =Max.⁽³⁾,VOUT = GND 60

VCC =0V,VIN orVOUT £ 4.5V

µA

150

Notes:

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

2. TypicalvaluesareatVcc=3.3V,+25°Cambientandmaximumloading.

3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.

4. This parameter is guaranteed but not tested.

5. VOH = VCC 0.6V at rated current.

PS2067A

01/15/97

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Power Supply Characteristics

Parameters Description

Test Conditions⁽¹⁾

VCC = Max.

Min. Typ⁽²⁾Max. Units

ICC

Quiescent Power Supply Current

VIN = GND or VCC

VIN = VCC – 0.6V⁽³⁾

0.1

2.0

µA

∆ICC

Quiescent Power Supply Current

TTL Inputs HIGH

VCC = Max.

ICCD

Dynamic Power Supply⁽⁴⁾

VCC = Max.,

VIN = VCC

µA/

Outputs Open

XOE = GND

VIN = GND

MHz

One Bit Toggling

50% Duty Cycle

Total Power Supply

Current⁽⁶⁾

VCC = Max.,

Outputs Open

fI = 10 MHZ

VIN = VCC – 0.6V

VIN = GND

0.5

0.8

50% Duty Cycle

XOE = GND

One Bit Toggling

VCC = Max.,

Outputs Open

fI = 2.5 MHZ

50% Duty Cycle

XOE = GND

VIN = VCC – 0.6V

VIN = GND

2.0

3.3⁽⁵⁾

16 Bits Toggling

Notes:

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

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

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

4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.

5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.

6. I^C=IQUIESCENT + IINPUTS + IDYNAMIC

IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINI)

ICC = Quiescent Current (ICCL, ICCH and ICCZ)

∆ICC = Power Supply Current for a TTL High Input

DH = Duty Cycle for TTL Inputs High

NT = Number of TTL Inputs at DH

ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)

fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)

NCP = Number of Clock Inputs at fCP

fI = Input Frequency

NI = Number of Inputs at fI

All currents are in milliamps and all frequencies are in megahertz.

PS2067A 01/15/97

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Switching Characteristics over Operating Range⁽¹⁾

LPT16244

Com.

Min⁽³⁾

LPT16244A

Com.

Min⁽³⁾

LPT16244C

Com.

Parameters Description

Conditions⁽²⁾

Max

Min⁽³⁾

Max

4.1

Unit

tPLH

t^PHL

Propagation Delay

XAX to XYX

CL = 50 pF

RL = 500Ω

1.5

5.2

1.5

4.8

1.5

tPZH

tPZL

Output Enable Time

xOE to xYx

Output Disable Time⁽⁴⁾

xOE to xYx

7.0

0.5

6.2

5.6

0.5

1.5

5.8

5.2

0.5

t^PHZ

tPLZ

tSK(o)

Output Skew⁽⁵⁾

Notes:

1. Propagation Delays and Enable/Disable times are with Vcc = 3.3V ±0.3V, normal range. For Vcc = 2.7V, extended range, all

Propagation Delays and Enable/Disable times should be degraded by 20%.

2. See test circuit and wave forms.

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

4. This parameter is guaranteed but not production tested.

5. Skew between any two outputs, of the same package, switching in the same direction. This parameter is guaranteed by design.

Pericom Semiconductor Corporation

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

PS2067A

01/15/97

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