TC74LCXR164245FT(S [TOSHIBA]

TC74LCXR164245FT(S;


型号：	TC74LCXR164245FT(S
厂家：	TOSHIBA
描述：	TC74LCXR164245FT(S 光电二极管
文件：	总11页 (文件大小：218K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

TC74LCXR164245FT

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC74LCXR164245FT

16-Bit Dual Supply Bus Transceiver with Series Resistor

The TC74LCXR164245FT is a dual supply, advanced high-speed

CMOS 16-bit dual supply voltage interface bus transceiver

fabricated with silicon gate CMOS technology.

Designed for use as an interface between a 5-V bus and a 3.3-V

or 2.5-V bus in mixed 5-V/3.3-V or 2.5-V supply systems, it achieves

high-speed operation while maintaining the CMOS low power

dissipation.

It is intended for 2 way asynchronous communication between

data busses. The direction of data transmission is determined by the

level of the DIR input. The enable input ( OE ) can be used to disable

the device so that the buses are effectively isolated. The B-port

interfaces with the 5-V bus, the A-port with the 3.3-V or 2.5-V-bus.

Weight: 0.25 g (typ.)

The 26-Ω series resistor helps reducing output overshoot and undershoot without external resistor.

All inputs are equipped with protection circuits against static discharge or transient excess voltage.

Features (Note)

•

Bidirectional interface between 5 V and 3.3 V or 2.5 V buses

26-Ω series resistors on outputs

High-speed: t = 6.8 ns (max)

CCB

= 5.0 ± 0.5 V/V

= 3.3 ± 0.3 V, Ta = −40 to 85°C)

CCA

•

Low power dissipation: I

= 80 μA (max) (Ta = −40 to 85°C)

Symmetrical output impedance:

= ±12 mA (min)

OUTB

= ±12 mA (min)

OUTA

CCB

= 4.5V/V

= 3.0 V)

CCA

•

Power-down protection is provided on all inputs and outputs.

Allows A port and V to float simultaneously when OE is “H”

CCA

Latch-up performance: −500 mA

Package: TSSOP

Note:

Do not apply a signal to any bus pins when it is in the output mode. Damage may result.

All floating (high impedance) bus pins must have their input fixed by means of pull-up or pull-down resistors.

Start of commercial production

2000-08

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TC74LCXR164245FT

Pin Assignment (top view)

IEC Logic Symbol

1OE

1DIR

1B1

1B2

GND

1B3

1B4

1OE

3 EN1 (BA)

3 EN2 (AB)

1DIR

47 1A1

46 1A2

45 GND

44 1A3

43 1A4

2OE

6 EN4 (BA)

6 EN5 (AB)

2DIR

1B1

1A1

1B2

1B3

1B4

1B5

1B6

1B7

1B8

2B1

1A2

1A3

1A4

1A5

1A6

1A7

1A8

2A1

(5 V) V

CCA

(3.3 V)

CCB

1B5

41 1A5

40 1A6

39 GND

38 1A7

37 1A8

36 2A1

35 2A2

34 GND

33 2A3

32 2A4

1B6

GND 10

1B7 11

1B8 12

2B1 13

2B2 14

GND 15

2B3 16

2B4 17

2B2

2B3

2B4

2B5

2B6

2B7

2B8

2A2

2A3

2A4

2A5

2A6

2A7

2A8

(5 V) V

CCB

CCA

(3.3 V)

2B5 19

2B6 20

30 2A5

29 2A6

28 GND

27 2A7

26 2A8

GND 21

2B7 22

2B8 23

2DIR 24

2OE

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TC74LCXR164245FT

Truth Table

Inputs

Function

Outputs

Bus

1OE

1DIR

1A1-1A8

Output

Input

1B1-1B8

Input

A = B

B = A

Output

Inputs

Function

Outputs

Bus

2OE

2DIR

2A1-2A8

Output

Input

2B1-2B8

Input

A = B

B = A

Output

X: Don’t care

Z: High impedance

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TC74LCXR164245FT

Block Diagram

CCB

CCA

1DIR

Logic

level

converter

1OE

1B1

1A1

Same as above block

1B8

1A8

CCB

CCA

2DIR

Logic

level

converter

2OE

2B1

2A1

2A8

Same as above block

2B8

2014-03-01

TC74LCXR164245FT

Absolute Maximum Ratings (Note 1)

Characteristics

Symbol

Rating

Unit

−0.5 to 7.0

CCB

Power supply voltage

(Note 2)

−0.5 to V

+ 0.5

CCA

CCB

DC input voltage

(DIR, OE )

−0.5 to 7.0

−0.5 to 7.0 (Note 3)

I/OB

−0.5 to V

+ 0.5

(Note 4)

−0.5 to 7.0 (Note 3)

−0.5 to V + 0.5

CCB

DC bus I/O voltage

I/OA

CCA

(Note 4)

Input diode current

Output diode current

−50

±50

(Note 5)

I/OK

±50

OUTB

OUTA

DC output current

±50

±100

400

CCB

CCA

DC V /ground current per supply pin

Power dissipation

Storage temperature

stg

−65 to 150

°C

Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or

even destruction.

Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the

significant change in temperature, etc.) may cause this product to decrease in the reliability significantly

even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute

maximum ratings and the operating ranges.

Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook

(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test

report and estimated failure rate, etc).

Note 2: Don’t supply a voltage to V

terminal when V is in the off-state.

CCB

CCA

Note 3: OFF state

Note 4: High or low state. I

OUT

absolute maximum rating must be observed.

Note 5:

OUT

< GND, V

OUT

> V

2014-03-01

TC74LCXR164245FT

Operating Ranges (Note 1)

Characteristics

Symbol

Rating

Unit

4.5 to 5.5

2.3 to 3.6

CCB

Power supply voltage

CCA

Input voltage

(DIR, OE )

0 to 5.5

0 to 5.5 (Note 2)

I/OB

I/OA

0 to V

(Note 3)

0 to 5.5 (Note 2)

CCB

Bus I/O voltage

0 to V

CCA

(Note 3)

(Note 4)

(Note 5)

(Note 6)

±12

OUTB

Output current

±12

±4

OUTA

Operating temperature

Input rise and fall time

−40 to 85

°C

opr

dt/dv

0 to 10 (Note 7)

ns/V

Note 1: The operating ranges must be maintained to ensure the normal operation of the device. Unused inputs must

be tied to either V or GND. Please connect both bus inputs and the bus outputs with V or GND when

the I/O of the bus terminal changes by the function. In this case, please note that the output is not

short-circuited.

Note 2: OFF state

Note 3: High or low state

Note 4:

Note 5:

Note 6:

Note 7:

= 4.5 to 5.5 V

= 3.0 to 3.6 V

= 2.3 to 2.7 V

CCB

CCA

= 0.8 to 2.0 V, V

= 5.0 V

= 3.0 V

INB

CCB

INA

CCA

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TC74LCXR164245FT

Electrical Characteristics

DC Characteristics

Ta = −40 to

85°C

Characteristics

Symbol

Test Condition

(V)

Unit

CCB

CCA

Min

2.0

1.7

2.0

⎯

Max

DIR, OE , Bn

5.0 ± 0.5 2.3 to 3.6

5.0 ± 0.5 2.5 ± 0.2

5.0 ± 0.5 3.3 ± 0.3

5.0 ± 0.5 2.3 to 3.6

5.0 ± 0.5 2.5 ± 0.2

5.0 ± 0.5 3.3 ± 0.3

⎯

IHB

H-level input voltage

IHA

⎯

DIR, OE , Bn

0.8

0.7

0.8

ILB

L-level input voltage

⎯

ILA

⎯

CCB

− 0.2

= −100 μA

= −12 mA

= −100 μA

5.0 ± 0.5 2.3 to 3.6

⎯

OHB

OHA

OHB

OHA

INA

4.5

2.3 to 3.6

3.7

= V

or V

IHA

ILA

H-level output voltage

CCA

5.0 ± 0.5 2.3 to 3.6

INB

− 0.2

2.2

1.8

⎯

= V

IHB

ILB

= −12 mA

= − 4 mA

= 100 μA

= 12 mA

= 100 μA

= 12 mA

= 4 mA

5.0 ± 0.5

3.0

2.3

⎯

OHA

OLB

OLA

5.0 ± 0.5 2.3 to 3.6

0.2

0.7

0.2

0.8

0.6

OLB

INA

4.5

2.3 to 3.6

3.0

⎯

= V

or V

IHA

ILA

L-level output voltage

5.0 ± 0.5

⎯

INB

= V

⎯

OLA

IHB

ILB

2.3

⎯

= V

IHB

or V

ILB

5.0 ± 0.5 2.3 to 3.6

⎯

±5.0

OZB

= 0 to 5.5 V

I/OB

3-state output OFF state current

μA

= V

IHB

or V

ILB

OZA

= 0 to 5.5 V

I/OA

Input leakage current

(DIR, OE ) = 0 to 5.5 V

5.5

3.6

⎯

±5.0

μA

Power-off leakage current

= 5.5 V

= Open, V

OFF

INA INB

= Open

CCA

I/OA

5.5

Open

3.6

⎯

CCB1

V_OE= V

, DIR = GND

CCB

= V

or GND

INA

INB

CCA

CCB

μA

CCB2

Quiescent supply current

= V

or GND

INA

INB

CCA

CCB

3.6

CCA

= 3.4 V per input

5.5

2.3 to 3.6

3.6

⎯

2.0

CCTB

INB

INA

= V

− 0.6 V per input

5.0 ± 0.5

500

μA

CCTA

CCA

2014-03-01

TC74LCXR164245FT

AC Characteristics (input: t = t = 2.5 ns, R = 500 Ω)

CCA

= 3.3 ± 0.3 V

Ta = −40 to

85°C

Characteristics

Symbol

Test Condition

CL (pF)

(V)

Unit

CCB

Min

1.0

Max

Propagation delay time

pLH

5.0 ± 0.5

6.8

10.0

9.5

(Bn → An)

pHL

Input: Bn

3-state output enable time

pZL

Output: An

1.0

⎯

( OE → An)

pZH

(DIR = “L”)

3-state output disable time

pLZ

( OE → An)

pHZ

Propagation delay time

pLH

6.8

(An → Bn)

pHL

Input: An

3-state output enable time

pZL

Output: Bn

(DIR = “H”)

10.0

9.5

( OE → Bn)

pZH

3-state output disable time

pLZ

( OE → Bn)

pHZ

osLH

Output to output skew

(Note)

1.0

osHL

Note:

Parameter guaranteed by design.

= |t

− t

|, t

= |t

− t

pHLn

osLH

pLHm

pLHn osHL

pHLm

CCA

= 2.5 ± 0.2 V

Ta = −40 to

85°C

Characteristics

Symbol

Test Condition

CL (pF)

(V)

Unit

CCB

Min

1.0

Max

Propagation delay time

pLH

5.0 ± 0.5

9.0

(Bn → An)

pHL

Input: Bn

3-state output enable time

pZL

Output: An

1.0

⎯

12.5

11.5

10.0

12.5

11.5

1.0

( OE → An)

pZH

(DIR = “L”)

3-state output disable time

pLZ

( OE → An)

pHZ

Propagation delay time

pLH

(An → Bn)

pHL

Input: An

3-state output enable time

pZL

Output: Bn

(DIR = “H”)

( OE → Bn)

pZH

3-state output disable time

pLZ

( OE → Bn)

pHZ

osLH

Output to output skew

(Note) 30 or 50 5.0 ± 0.5

osHL

Note:

Parameter guaranteed by design.

(t = |t − t |, t = |t

− t |)

pHLn

osLH

pLHm

pLHn osHL

pHLm

2014-03-01

TC74LCXR164245FT

Capacitive Characteristics (Ta = 25°C)

= 5.0 V

CCB

Test

Circuit

Characteristics

Symbol

Test Condition

(V)

Typ.

Unit

CCA

Input capacitance

Output capacitance

⎯

DIR, OE

An, Bn

2.5, 3.3

I/O

A ⇒ B (DIR = “H”)

B ⇒ A (DIR = “L”)

A ⇒ B (DIR = “H”)

B ⇒ A (DIR = “L”)

⎯

PDA

PDB

Power dissipation capacitance

(Note)

Note:

is defined as the value of the internal equivalent capacitance which is calculated from the operating

current consumption without load.

Average operating current can be obtained by the equation:

= C ･V ･f + I /16 (per bit)

PD CC IN CC

CC (opr)

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TC74LCXR164245FT

Package Dimensions

Weight: 0.25 g (typ.)

2014-03-01

TC74LCXR164245FT

RESTRICTIONS ON PRODUCT USE

•

Toshiba Corporation, and its subsidiaries and affiliates (collectively "TOSHIBA"), reserve the right to make changes to the information

in this document, and related hardware, software and systems (collectively "Product") without notice.

This document and any information herein may not be reproduced without prior written permission from TOSHIBA. Even with

TOSHIBA's written permission, reproduction is permissible only if reproduction is without alteration/omission.

Though TOSHIBA works continually to improve Product's quality and reliability, Product can malfunction or fail. Customers are

responsible for complying with safety standards and for providing adequate designs and safeguards for their hardware, software and

systems which minimize risk and avoid situations in which a malfunction or failure of Product could cause loss of human life, bodily

injury or damage to property, including data loss or corruption. Before customers use the Product, create designs including the

Product, or incorporate the Product into their own applications, customers must also refer to and comply with (a) the latest versions of

all relevant TOSHIBA information, including without limitation, this document, the specifications, the data sheets and application notes

for Product and the precautions and conditions set forth in the "TOSHIBA Semiconductor Reliability Handbook" and (b) the

instructions for the application with which the Product will be used with or for. Customers are solely responsible for all aspects of their

own product design or applications, including but not limited to (a) determining the appropriateness of the use of this Product in such

design or applications; (b) evaluating and determining the applicability of any information contained in this document, or in charts,

diagrams, programs, algorithms, sample application circuits, or any other referenced documents; and (c) validating all operating

parameters for such designs and applications. TOSHIBA ASSUMES NO LIABILITY FOR CUSTOMERS' PRODUCT DESIGN OR

APPLICATIONS.

•

PRODUCT IS NEITHER INTENDED NOR WARRANTED FOR USE IN EQUIPMENTS OR SYSTEMS THAT REQUIRE

EXTRAORDINARILY HIGH LEVELS OF QUALITY AND/OR RELIABILITY, AND/OR A MALFUNCTION OR FAILURE OF WHICH

MAY CAUSE LOSS OF HUMAN LIFE, BODILY INJURY, SERIOUS PROPERTY DAMAGE AND/OR SERIOUS PUBLIC IMPACT

("UNINTENDED USE"). Except for specific applications as expressly stated in this document, Unintended Use includes, without

limitation, equipment used in nuclear facilities, equipment used in the aerospace industry, medical equipment, equipment used for

automobiles, trains, ships and other transportation, traffic signaling equipment, equipment used to control combustions or explosions,

safety devices, elevators and escalators, devices related to electric power, and equipment used in finance-related fields. IF YOU USE

PRODUCT FOR UNINTENDED USE, TOSHIBA ASSUMES NO LIABILITY FOR PRODUCT. For details, please contact your

TOSHIBA sales representative.

•

Do not disassemble, analyze, reverse-engineer, alter, modify, translate or copy Product, whether in whole or in part.

Product shall not be used for or incorporated into any products or systems whose manufacture, use, or sale is prohibited under any

applicable laws or regulations.

•

The information contained herein is presented only as guidance for Product use. No responsibility is assumed by TOSHIBA for any

infringement of patents or any other intellectual property rights of third parties that may result from the use of Product. No license to

any intellectual property right is granted by this document, whether express or implied, by estoppel or otherwise.

ABSENT A WRITTEN SIGNED AGREEMENT, EXCEPT AS PROVIDED IN THE RELEVANT TERMS AND CONDITIONS OF SALE

FOR PRODUCT, AND TO THE MAXIMUM EXTENT ALLOWABLE BY LAW, TOSHIBA (1) ASSUMES NO LIABILITY

WHATSOEVER, INCLUDING WITHOUT LIMITATION, INDIRECT, CONSEQUENTIAL, SPECIAL, OR INCIDENTAL DAMAGES OR

LOSS, INCLUDING WITHOUT LIMITATION, LOSS OF PROFITS, LOSS OF OPPORTUNITIES, BUSINESS INTERRUPTION AND

LOSS OF DATA, AND (2) DISCLAIMS ANY AND ALL EXPRESS OR IMPLIED WARRANTIES AND CONDITIONS RELATED TO

SALE, USE OF PRODUCT, OR INFORMATION, INCLUDING WARRANTIES OR CONDITIONS OF MERCHANTABILITY, FITNESS

FOR A PARTICULAR PURPOSE, ACCURACY OF INFORMATION, OR NONINFRINGEMENT.

•

Do not use or otherwise make available Product or related software or technology for any military purposes, including without

limitation, for the design, development, use, stockpiling or manufacturing of nuclear, chemical, or biological weapons or missile

technology products (mass destruction weapons). Product and related software and technology may be controlled under the

applicable export laws and regulations including, without limitation, the Japanese Foreign Exchange and Foreign Trade Law and the

U.S. Export Administration Regulations. Export and re-export of Product or related software or technology are strictly prohibited

except in compliance with all applicable export laws and regulations.

Please contact your TOSHIBA sales representative for details as to environmental matters such as the RoHS compatibility of Product.

Please use Product in compliance with all applicable laws and regulations that regulate the inclusion or use of controlled substances,

including without limitation, the EU RoHS Directive. TOSHIBA ASSUMES NO LIABILITY FOR DAMAGES OR LOSSES

OCCURRING AS A RESULT OF NONCOMPLIANCE WITH APPLICABLE LAWS AND REGULATIONS.

2014-03-01

TC74LCXR164245FT(S [TOSHIBA]

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