PI74LPT16244AVX [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：	PI74LPT16244AVX
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 驱动光电二极管逻辑集成电路
文件：	总6页 (文件大小：517K)
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

Features

Description

• Compatible with LCX and LVT families of products

Pericom Semiconductor’s PI74LPT16244 is a 16-bit buffer/line

driver designed for driving high capacitive memory loads.

With its balanced-drive characteristics, this high-speed, low

power device provides lower ground bounce, transmission line

matching of signals, fewer line reﬂections and lower EMI and

RFI effects. This makes it ideal for driving on-board buses and

transmission lines. This device is designed with three-state

controls to operate in a Quad-Nibble, Dual-Byte, or a single

16-bit word mode.

• Supports 5V Tolerant Mixed Signal Mode Operation

– Input can be 3V or 5V

– Output can be 3V or connected to 5V bus

• Advanced Low Power CMOS Operation

• Excellent output drive capability:

Balanced drives (24mA sink and source)

• Pin compatible with industry standard double-density pinouts

• Low ground bounce outputs

The PI74LPT16244 can be driven from either 3.3V or 5.0V

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

3.3/5.0V system.

• Hysteresis on all inputs

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

• Multiple center pins and distributed Vcc/GND pins minimize

switching noise

• Packaging (Pb-free & Green available):

– 48-pin 240-mil wide thin plastic TSSOP (A)

– 48-pin 300-mil wide plastic SSOP (V)

Block Diagram

₁OE

₃OE

₁A₀

₁Y₀

₃A₀

₃Y₀

₁A₁

₁Y₁

₃A₁

₃Y₁

₁A₂

₁Y₂

₃A₂

₃Y₂

₁A₃

₁Y₃

₃A₃

₃Y₃

₂OE

₂A₀

₄OE

₄A₀

₂Y₀

₄Y₀

₂A₁

₂A₂

₂A₃

₂Y₁

₄A₁

₄A₂

₄A₃

₄Y₁

₂Y₂

₄Y₂

₂Y₃

₄Y₃

PS2067F

06/05/06

06-0208

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Maximum Ratings

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

Note:

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

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

Stresses greater than those listed under MAXIMUM RAT-

INGS 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 ex-

tended periods may affect reliability.

Supply Voltage to Ground Potential (Inputs & V 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

Product Pin Conﬁguration

Truth Table

(1)

Inputs

Outputs

1OE

1Y0

1Y1

GND

1Y2

1Y3

VCC

2Y0

2Y1

GND

2Y2

2Y3

3Y0

3Y1

GND

3Y2

3Y3

VCC

4Y0

4Y1

GND

4Y2

4Y3

4OE

2OE

1A0

1A1

GND

1A2

1A3

VCC

2A0

2A1

GND

2A2

2A3

3A0

3A1

GND

3A2

3A3

VCC

4A0

4A1

GND

4A2

4A3

3OE

XOE

XAX

xYx

Notes:

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

L = Low Voltage Level, Z = High Impedance

48-Pin

A, V

Product Pin Description

Pin Name

Description

xOE

3-State Output Enable Inputs (Active LOW)

xAx

Inputs

xYx

3-State Outputs

Ground

GND

Power

PS2067F

06/05/06

06-0208

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Capacitance (T = 25°C, f = 1 MHz)

(1)

Parameters

Description

Test Conditions

= 0V

Typ

Max.

Units

Input Capacitance

Output Capacitance

= 0V

OUT

Notes:

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

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

(1)

(2)

Parameters

Description

Test Conditions

Min.

2.2

Typ

Max.

Units

Input HIGH Voltage (Input pins)

Input HIGH Voltage (I/O pins)

Input LOW Voltage

5.5

Guaranteed Logic HIGH Level

Guaranteed Logic LOW Level

2.0

–0.5

0.8

(Input and I/O pins)

Input HIGH Current (Input pins) VCC = Max.

Input HIGH Current (I/O pins) VCC = Max.

Input LOW Current (Input pins) VCC = Max.

Input LOW Current (I/O pins) VCC = Max.

High Impedance Output Current VCC = Max.

VIN = 5.5V

VIN = VCC

±1

VIN = GND

VOUT = 5.5V

VOUT = GND

±1

µA

±1

OZH

(3-State Output pins)

VCC = Max.

±1

OZL

Clamp Diode Voltage

VCC = Min., IIN = –18 mA

–0.7

–1.2

VCC = 3.3V, VIN = VIH or VIL, VO =

1.5V

Output HIGH Current

Output LOW Current

–36

–60

–110

200

OHD

(3)

VCC = 3.3V, VIN = VIH or VIL, VO =

ODL

(3)

1.5V

IOH = –0.1 mA

Vcc-0.2

2.4

VCC = Min.

VIN = VIH or VIL

IOH = –3 mA

IOH = –8 mA

IOH = –24 mA

IOL = 0.1 mA

IOL = 16 mA

IOL = 24 mA

3.0

Output HIGH Voltage

(5)

VCC = 3.0V,

2.4

VIN = VIH or VIL

2.0

0.2

0.4

VCC = Min.

VIN = VIH or VIL

Output LOW Voltage

0.2

0.3

–85

0.5

(4)

(3)

Short Circuit Current

Power Down Disable

VCC = Max. , VOUT = GND

VCC = 0V, VIN or VOUT ≤ 4.5V

–60

–240

±100

OFF

µA

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. 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. V_OH= V_CC– 0.6V at rated current.

PS2067F

06/05/06

06-0208

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Power Supply Characteristics

(1)

(2)

Parameters

Description

Min.

Max.

Units

Test Conditions

Typ

ICC

Quiescent Power Supply Current VCC = Max.

VIN = GND or VCC

0.1

µA

Quiescent Power Supply Current

VCC = Max.

(3)

ΔICC

VIN = VCC – 0.6V

500

TTL Inputs HIGH

VCC = Max.,

Outputs Open

XOE = GND

VIN = VCC

VIN = GND

µA/

MHz

(4)

ICCD

Dynamic Power Supply

One Bit Toggling

50% Duty Cycle

VCC = Max.,

Outputs Open

fI = 10 MHZ

50% Duty Cycle

XOE = GND

VIN = VCC – 0.6V

VIN = GND

0.5

0.8

One Bit Toggling

Total Power Supply

Current

(6)

VCC = Max.,

Outputs Open

fI = 2.5 MHZ

50% Duty Cycle

XOE = GND

VIN = VCC – 0.6V

VIN = GND

(5)

2.0

3.3

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.

IC =IQUIESCENT + IINPUTS + IDYNAMIC

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

ICC = Quiescent Current (ICCL, ICCH and ICCZ)

ΔICC = 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.

PS2067F

06/05/06

06-0208

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

(1)

Switching Characteristics over Operating Range

LPT16244

LPT16244A

LPT16244C

Parameters

Description

Conditions

Com.

Units

(2)

Min

Max.

Min

Max. Min

Max.

Propagation Delay

XAX to XYX

PLH

1.5

5.2

1.5

4.8

6.2

1.5

4.1

PHL

Output Enable Time

xOE to xYx

PZH

PZL

7.0

1.5

5.8

C = 50 pF

R = 500Ω

(3)

Output Disable Time

xOE to xYx

PHZ

PLZ

7.0

0.5

5.6

0.5

5.2

0.5

(4)

(o)

Output Skew

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

3. This parameter is guaranteed but not production tested.

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

Packaging Mechanical: 48-pin TSSOP (A)

.236

.244

6.0

6.2

.488 12.4

.496 12.6

.047

1.20 Max

SEATING PLANE

0.09

0.20

.004

.008

0.45 .018

0.75 .030

.002

.006

0.05

0.15

.007

.010

.0197

BSC

.319

BSC

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

0.50

0.17

0.27

8.1

PS2067F

06/05/06

06-0208

PI74LPT16244

3.3V, 16-Bit Buffer/Line Driver

Packaging Mechanical: 48-pin SSOP (V)

.395

.420

10.03

10.67

.291

.299

7.39

7.59

Gauge Plane

.010

0.25

.02

.04

0.51

1.01

.620

.630

15.75

16.00

0.381

0.635

.015

.025

x 45˚

.008

0.20

Nom.

.110 2.79 Max

.008 0.20

.0135 0.34

.025 BSC

0.635

.008 0.20

.016 0.40

0-8˚

X.XX

DENOTES DIMENSIONS

IN MILLIMETERS

Ordering Information

Ordering Code

Package Code

Description

PI74LPT16244A

48-pin 240 mil wide plastic TSSOP

48-pin 300 mil wide plastic SSOP

48-pin 240 mil wide plastic TSSOP

48-pin 300 mil wide plastic SSOP

48-pin 240 mil wide plastic TSSOP

48-pin 300 mil wide plastic SSOP

PI74LPT16244V

PI74LPT16244AA

PI74LPT16244AV

PI74LPT16244CA

PI74LPT16244CV

PI74LPT16244AE

PI74LPT16244AAE

PI74LPT16244CAE

Pb-free & Green, 48-pin 240 mil wide plastic TSSOP

Notes:

•

Thermal characteristics can be found on the company web site at www.pericom.com/packaging/

E = Pb-free & Green

• Adding an X sufﬁx = Tape/Reel

Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com

PS2067F

06/05/06

06-0208

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