FXL5T244BQX_技术文档

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June 2004

Revised June 2004

FXL5T244

Low Voltage Dual Supply 5-Bit Signal Translator

with Configurable Voltage Supplies

and Signal Levels and 3-STATE Outputs

General Description

Features

■ One-way (unidirectional) translation between any

The FXL5T244 is a configurable dual-voltage-supply trans-

lator designed for one-way (unidirectional) voltage transla-

tion of signals between two voltage levels. The device

allows translation between voltages as high as 3.6V to as

low as 1.1V. A Inputs and the OE Control Pin track the V_CCI

2 levels from 1.1V to 3.6V

■ Fully configurable, inputs and outputs track respective

V_CClevels

■ Non-preferential power-up sequencing; either V_CCmay

be powered-up first

level, and Y Outputs track the V_CCOlevel. Both inputs and

outputs are designed to accept supply voltage levels from

1.1V to 3.6V. This allows for unidirectional voltage transla-

tion over a variety of voltage levels: 1.2V, 1.5V, 1.8V, 2.5V,

and 3.3V.

■ Outputs remain in 3-STATE until active V_CClevel is

reached

■ Outputs switch to 3-STATE if either V_CCis at GND

The device remains in 3-STATE until both V_CCs reach

active levels allowing either V_CCto be powered-up first.

■ Power-off protection

■ Control input (OE) level is referenced to V_CCIvoltage

The device also contains power down control circuits that

place the device in 3-STATE if either V_CCis removed. The

■ Packaged in 14-terminal DQFN (2.5mm x 3.0mm)

package

OE input, when HIGH, disables the outputs by placing

them in 3-STATE condition.

■ ESD protection exceeds:

• 4kV HBM ESD

(per JESD22-A114 & Mil Std 883e 3015.7)

• 8kV HBM I/O to GND ESD

(per JESD22-A114 & Mil Std 883e 3015.7)

• 1kV CDM ESD (per ESD STM 5.3)

• 200V MM ESD (per JESD22-A115 & ESD STM5.2)

Ordering Code:

Package

Order Number

Package Description

Number

FXL5T244BQX

MLP014A

14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241,

2.5 x 3.0mm

DS500892

www.fairchildsemi.com

Terminal Descriptions

Truth Table

Terminal

Names

Description

Inputs

Outputs

Y_n

OE

A_n

OE

Output Enable Input

Data Inputs

L

H

X

L

H

A_n

Y_n

3-STATE Outputs

Inputs Power Supply

Outputs Power Supply

Ground

H

3-STATE

V_CCI

V_CCO

GND

H = HIGH Voltage Level

L = LOW Voltage Level

X = Don’t Care

Connection Diagram

Terminal Assignment

Terminal Number

Terminal Name

Terminal Assignments for DQFN

1

2

3

4

5

6

7

V_CCI

A₀

A₁

A₂

A₃

A₄

GND

8

OE

Y₄

9

10

11

12

13

14

Y₃

Y₂

Y₁

Y₀

V_CCO

(Top View)

Power-Up/Power-Down Sequencing

FXL translators offer an advantage in that either V_CCmay

The recommended power-up sequence is the following:

1. Apply power to either V_CC

be powered up first. This benefit derives from the chip

design. When either V_CCis at 0 volts, outputs are in a

.

2. Apply power to the OE input (Logic HIGH for A-to-B

operation; Logic LOW for B-to-A operation) and to the

respective data inputs (A Port or B Port). This may

occur at the same time as Step 1.

HIGH-Impedance state. The control input, OE, is designed

to track the V_CCIsupply. A pull-up resistor tying OE to V_CCI

should be used to ensure that bus contention, excessive

currents, or oscillations do not occur during power-up/

power-down. The size of the pull-up resistor is based upon

the current-sinking capability of the OE driver.

3. Apply power to other V_CC

.

4. Drive the OE input LOW to enable the device.

The recommended power-down sequence is the following:

1. Drive OE input HIGH to disable the device.

2. Remove power from either V_CC

.

3. Remove power from other V_CC

.

www.fairchildsemi.com

2

Absolute Maximum Ratings(Note 1)

Recommended Operating

Conditions ^{(Note 3)}

Supply Voltage

V_CCI

−0.5V to +4.6V Power Supply Operating (V_CCIor V_CCO

−0.5V to +4.6V Input Voltage

)

1.1V to 3.6V

V_CCO

DC Input Voltage (V_I)

Output Voltage (V_O) (Note 2)

Outputs 3-STATE

Outputs Active

−0.5V to +4.6V

A_n

0.0V to 3.6V

Control Inputs (OE)

−0.5V to +4.6V Output Current in I_OH/I_OL

−0.5V to V_CCO+ 0.5V

−50 mA

V

_CCO= 3.0V to 3.6V

_CCO= 2.3V to 2.7V

_CCO= 1.65V to 1.95V

_CCO= 1.4V to 1.65V

_CCO= 1.1V to 1.4V

±24 mA

±18 mA

DC Input Diode Current (I_IK) V_I< 0V

DC Output Diode Current (I_OK

)

±6 mA

V

_O< 0V

−50 mA

+50 mA

±2 mA

_O> V_CC

±0.5 mA

DC Output Source/Sink Current

(I_OH/I_OL

Free Air Operating Temperature (T_A)

−40°C to +85°C

)

−50 mA / +50 mA

Minimum Input Edge Rate (∆V/∆t)

DC V_CCor Ground Current per

Supply Pin (I_CCor GND)

V

_CCA/B= 1.1V to 3.6V

10 ns/V

±100 mA

Note 1: The “Absolute Maximum Ratings” are those values beyond which

the safety of the device cannot be guaranteed. The device should not be

operated at these limits. The parametric values defined in the Electrical

Characteristics tables are not guaranteed at the absolute maximum ratings.

The “Recommended Operating Conditions” table will define the conditions

for actual device operation.

Storage Temperature Range (T_STG

)

−65°C to +150°C

Note 2: I_OAbsolute Maximum Rating must be observed.

Note 3: All unused inputs must be held at V_CCIor GND.

DC Electrical Characteristics

V_CCI

V_CCO

(V)

Symbol

Parameter

Conditions

Min

Max

Units

(V)

V_IH

High Level Input Voltage

2.7 - 3.6

2.3 - 2.7

2.0

1.6

1.65 - 2.3 1.1 - 3.6 0.65 x V_CCI

V

1.4 - 1.65

0.65 x V_CCI

0.9 x V_CCI

1.1 - 1.4

V_IL

Low Level Input Voltage

High Level Output Voltage

2.7 - 3.6

0.8

2.3 - 2.7

0.7

1.65 - 2.3 1.1 - 3.6

1.4 - 1.65

0.35 x V_CCI

0.1 x V_CCI

V

1.1 - 1.4

V_OH

I

_OH= −100 µA

1.1 - 3.6 1.1 - 3.6

V_CC0- 0.2

2.2

_OH= −12 mA

_OH= −18 mA

_OH= −24 mA

_OH= −6 mA

_OH= −12 mA

_OH= −18 mA

_OH= −6 mA

_OH= −2 mA

_OH= −0.5 mA

2.7

3.0

2.3

1.65

1.4

1.1

2.7

3.0

2.3

1.65

1.4

1.1

2.4

2.2

2.0

V

1.8

1.7

1.25

1.05

0.75 x V_CC0

3

www.fairchildsemi.com

DC Electrical Characteristics (Continued)

V_CCI

V_CCO

Symbol

V_OL

Parameter

Conditions

_OL= 100µA

Min

Max

Units

(V)

1.1 - 3.6

2.7

(V)

1.1- 3.6

2.7

Low Level Output Voltage

I

0.2

0.4

_OL= 12 mA

_OL= 18 mA

_OL= 24 mA

_OL= 12 mA

_OL= 18 mA

_OL= 6 mA

_OL= 2 mA

_OL= 0.5 mA

3.0

0.4

3.0

0.55

0.4

2.3

V

2.3

0.6

1.65

1.4

1.65

1.4

0.3

0.35

0.3 x V_CCI

±1.0

1.1

I_I

Input Leakage Current

V_I= V_CCIor GND

1.1 - 3.6

3.6

µA

I_OFF

Power Off Leakage Current

A_n, OE = 0V to 3.6V

0

3.6

0

±10.0

Y_n= 0V to 3.6V

3.6

I_OZ

3-STATE Output Leakage

0 ≤ V_O≤ 3.6V

OE = V_IH

3.6

0

3.6

±10.0

+10.0

(Note 4)

OE = Don’t Care

µA

V_I= V_IHor V_IL

OE = Don’t Care

3.6

1.1 - 3.6

0

+10.0

20.0

−10.0

10.0

−10.0

10.0

500

I

_CCI/O(Note 4) Quiescent Supply Current

V_I= V_CCIor GND; I_O= 0

V_I= V_CCOor GND; I_O= 0

1.1 - 3.6

0

µA

I_CCZ(Note 5)

I_CCI

Quiescent Supply Current

1.1 - 3.6

0

I_CCO

Quiescent Supply Current

0

1.1 - 3.6

3.6

∆I_CCI/O

Increase in I_CCper Input;

V_IH= 3.0

3.6

Other Inputs at V_CCor GND

Note 4: Don’t Care = Any valid logic level.

Note 5: Reflects current per supply, V_CCIor V_CCO

.

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4

AC Electrical Characteristics V_CCI= 3.0V to 3.6V

T

_A= −40°C to +85°C

V_CCO

1.65V to 1.95V

V_CCO

3.0V to 3.6V

=

V_CCO

2.3V to 2.7V

=

V_CCO

1.4V to 1.6V

=

V_CCO

1.1V to 1.3V

=

Symbol

Parameter

Units

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

t_PLH, t_PHLPropagation Delay A to Y

t_PZH, t_PZLOutput Enable OE to Y

t_PHZ, t_PLZOutput Disable OE to Y

0.2

3.5

0.3

3.9

0.7

5.4

0.8

6.8

1.4

22.0

ns

0.5

0.2

4.0

3.8

0.7

0.2

4.4

4.0

1.0

0.7

5.9

4.8

1.0

1.5

6.4

6.2

1.5

2.0

17.0

AC Electrical Characteristics V_CCI= 2.3V to 2.7V

T

_A= −40°C to +85°C

V_CCO

1.65V to 1.95V

V_CCO

3.0V to 3.6V

=

V_CCO

2.3V to 2.7V

=

V_CCO

1.4V to 1.6V

=

V_CCO

1.1V to 1.3V

=

Symbol

Parameter

Units

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

t_PLH, t_PHLPropagation Delay A toY

t_PZH, t_PZLOutput Enable OE to Y

t_PHZ, t_PLZOutput Disable OE to Y

0.2

3.8

0.4

4.2

0.5

5.6

0.8

6.9

1.4

22.0

ns

0.6

0.2

4.2

4.1

0.8

0.2

4.6

4.3

1.0

0.7

6.0

4.8

1.0

1.5

6.8

6.7

1.5

2.0

17.0

AC Electrical Characteristics V_CCI= 1.65V to 1.95V

T

_A= −40°C to +85°C

V_CCO

1.65V to 1.95V

V_CCO

3.0V to 3.6V

=

V_CCO

2.3V to 2.7V

=

V_CCO

1.4V to 1.6V

=

V_CCO

1.1V to 1.3V

=

Symbol

Parameter

Units

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

t_PLH, t_PHLPropagation Delay A to Y

t_PZH, t_PZLOutput Enable OE to Y

t_PHZ, t_PLZOutput Disable OE to Y

0.3

4.0

0.5

4.5

0.8

5.7

0.9

7.1

1.5

22.0

ns

0.6

0.2

5.2

5.1

0.8

0.2

5.4

4.0

1.2

0.8

6.9

5.2

1.2

1.5

7.2

7.0

1.5

2.0

18.0

17.0

AC Electrical Characteristics V_CCI= 1.4V to 1.6V

T

_A= −40°C to +85°C

V_CCO

1.65V to 1.95V

V_CCO

3.0V to 3.6V

=

V_CCO

2.3V to 2.7V

=

V_CCO

1.4V to 1.6V

=

V_CCO

1.1V to 1.3V

=

Symbol

Parameter

Units

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

t

_PLH, t_PHLPropagation Delay A to Y

0.5

4.3

0.5

4.8

1.0

6.0

1.0

7.3

1.5

22.0

ns

t_PZH, t_PZLOutput Enable OE to Y

t_PHZ, t_PLZOutput Disable OE to Y

1.1

0.4

7.5

6.1

1.1

0.4

7.6

6.2

1.3

0.9

7.7

6.2

1.4

1.5

7.9

7.5

2.0

20.0

18.0

AC Electrical Characteristics V_CCI= 1.1V to 1.3V

T

_A= −40°C to +85°C

V_CCO

1.65V to 1.95V

V_CCO

3.0V to 3.6V

=

V_CCO

2.3V to 2.7V

=

V_CCO

1.4V to 1.6V

=

V_CCO

1.1V to 1.3V

=

Symbol

Parameter

Units

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

t_PLH, t_PHLPropagation Delay A to Y

t_PZH, t_PZLOutput Enable OE to Y

t_PHZ, t_PLZOutput Disable OE to Y

0.8

13.0

1.0

7.0

1.2

8.0

1.3

9.5

2.0

24.0

ns

1.0

12.0

15.0

1.0

0.7

9.0

7.0

2.0

1.0

10.0

8.0

2.0

11.0

10.0

2.0

24.0

20.0

Capacitance

T

_A= +25°C

Symbol

Parameter

Conditions

Units

Typical

C_IN

Input Capacitance A_nControl Pin (OE)

Output Capacitance Y_n

V

_CCI= V_CCO= 3.3V, V_I= 0V or V_CCI

4.0

5.0

pF

C_OUT

C_PD

_CCI= V_CCO= 3.3V, V_I= 0V or V_CCI

Power Dissipation Capacitance

_CCI= V_CCO= 3.3V, V_I= 0V or V_CCI, F = 10 MHz

20.0

5

www.fairchildsemi.com

AC Loading and Waveforms

TEST

SWITCH

t_PLH, t_PHL

t_PLZ, t_PZL

OPEN

V_CCOx 2 at V_CCO= 3.3 ± 0.3V, 2.5V ± 0.2V,

1.8V ± 0.15V, 1.5V ± 0.1V, 1.2V ± 0.1V

t_PHZ, t_PZH

GND

FIGURE 1. AC Test Circuit

AC Load Table

V_CCO

C_L

R_L

Rtr1

2 kΩ

1.2V ± 0.1V

1.5V ± 0.1V

1.8V ± 0.15V

2.5V ± 0.2V

3.3V ± 0.3V

15 pF

2 kΩ

Note: Input t_R= t_F= 2.0 ns, 10% to 90%

Input t_R= t_F= 2.5ns, 10% to 90%, @ V_I= 3.0V to 3.6V only

FIGURE 2. Waveform for Inverting

and Non-Inverting Functions

FIGURE 3. 3-STATE Output Low Enable

and Disable Times for Low Voltage Logic

Note: Input t_R= t_F= 2.0 ns, 10% to 90%

Input t_R= t_F= 2.5ns, 10% to 90%, @ V_I= 3.0V to 3.6V only

FIGURE 4. 3-STATE Output High Enable and Disable Times for Low Voltage Logic

V_CC

Symbol

3.3V ± 0.3V

V_CCI/2

2.5V ± 0.2V

V_CCI/2

1.8V ± 0.15V

V_CCI/2

1.5V ± 0.1V

V_CCI/2

1.2V ± 0.1V

V_CCI/2

V_mi

V_mo

V_X

V_CCO/2

V

_OH− 0.3V

_OL+ 0.3V

V_OH− 0.15V

V

_OH− 0.15V

_OL+ 0.15V

V_OH− 0.1V

V

_OH− 0.1V

V_Y

V

V_OL+ 0.15V

V

_OL+ 01V

V_OL+ 01V

Note: For V_mi: V_CCI= V_CCAfor Control Pins T/R and OE, or V_CCA/2

www.fairchildsemi.com

6

Tape and Reel Specification

Tape Format for DQFN

Package

Tape

Section

Number

Cavities

125 (typ)

3000

Cavity

Status

Empty

Filled

Cover Tape

Status

Designator

Leader (Start End)

Carrier

Sealed

BQX

Sealed

Trailer (Hub End)

75 (typ)

Empty

Sealed

TAPE DIMENSIONS inches (millimeters)

REEL DIMENSIONS inches (millimeters)

Tape Size

A

B

C

D

N

W1

W2

13.0

0.059

(1.50)

0.512

(13.00)

0.795

(20.20)

2.165

0.488

(12.4)

0.724

(18.4)

12 mm

(330.0)

(55.00)

7

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Physical Dimensions inches (millimeters) unless otherwise noted

14-Terminal Depopulated Quad Very-Thin Flat Pack No Leads (DQFN), JEDEC MO-241, 2.5 x 3.0mm

Package Number MLP014A

Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and

Fairchild reserves the right at any time without notice to change said circuitry and specifications.

LIFE SUPPORT POLICY

FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT

DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD

SEMICONDUCTOR CORPORATION. As used herein:

1. Life support devices or systems are devices or systems

which, (a) are intended for surgical implant into the

body, or (b) support or sustain life, and (c) whose failure

to perform when properly used in accordance with

instructions for use provided in the labeling, can be rea-

sonably expected to result in a significant injury to the

user.

2. A critical component in any component of a life support

device or system whose failure to perform can be rea-

sonably expected to cause the failure of the life support

device or system, or to affect its safety or effectiveness.

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8

ON Semiconductor and

are trademarks of Semiconductor Components Industries, LLC dba ON Semiconductor or its subsidiaries in the United States and/or other countries.

ON Semiconductor owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of ON Semiconductor’s product/patent

coverage may be accessed at www.onsemi.com/site/pdf/Patent−Marking.pdf. ON Semiconductor reserves the right to make changes without further notice to any products herein.

ON Semiconductor makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does ON Semiconductor assume any liability

arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.

Buyer is responsible for its products and applications using ON Semiconductor products, including compliance with all laws, regulations and safety requirements or standards,

regardless of any support or applications information provided by ON Semiconductor. “Typical” parameters which may be provided in ON Semiconductor data sheets and/or

specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer

application by customer’s technical experts. ON Semiconductor does not convey any license under its patent rights nor the rights of others. ON Semiconductor products are not

designed, intended, or authorized for use as a critical component in life support systems or any FDA Class 3 medical devices or medical devices with a same or similar classification

in a foreign jurisdiction or any devices intended for implantation in the human body. Should Buyer purchase or use ON Semiconductor products for any such unintended or unauthorized

application, Buyer shall indemnify and hold ON Semiconductor and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and

expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such

claim alleges that ON Semiconductor was negligent regarding the design or manufacture of the part. ON Semiconductor is an Equal Opportunity/Affirmative Action Employer. This

literature is subject to all applicable copyright laws and is not for resale in any manner.

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型号：	FXL5T244BQX
厂家：	ONSEMI
描述：	低电压双电源 5 位信号转换器，带可配置电压供应和信号电平，以及 3 态输出 PC 接口集成电路转换器
文件：	总10页 (文件大小：633K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

FXL5T244BQX [ONSEMI]

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