IDT74FCT521ASO8 [IDT]

Identity Comparator, FCT Series, 8-Bit, Inverted Output, CMOS, PDSO20, SOIC-20;


型号：	IDT74FCT521ASO8
厂家：	INTEGRATED DEVICE TECHNOLOGY
描述：	Identity Comparator, FCT Series, 8-Bit, Inverted Output, CMOS, PDSO20, SOIC-20 光电二极管
文件：	总6页 (文件大小：88K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

IDT54/74FCT521/A/B/C

FASTCMOS8-BITIDENTITYCOMPARATOR

MILITARYANDCOMMERCIAL TEMPERATURERANGES

FAST CMOS

8-BIT IDENTITY

COMPARATOR

IDT54/74FCT521/A/B/C

FEATURES:

DESCRIPTION:

• IDT54/74FCT521 equivalent to FAST™ speed

• IDT54/74FCT521A up to 35% faster than FAST

• IDT54/74FCT521B up to 35% faster than FAST

• IDT54/74FCT521C up to 60% faster than FAST

• Eqivalent to FAST output drive over full temperature and voltage

supply extremes

TheFCT521isan8-bitidentitycomparatorbuiltusinganadvanceddual

metalCMOStechnology. Thesedevices comparetwowords ofuptoeight

bitseachandprovidealowoutputwhenthetwowordsmatchbitforbit. The

expansion input IA = B also serves as an active low enable input.

• IOL = 48mA (commercial) and 32mA (military)

• CMOS power levels (1mW typ. static)

• TTL input and output level compatible

• CMOS output level compatible

• Substantially lower input current levels than FAST (5μA max.)

• MIlitary product compliant to MIL-STD-883, Class B

• Meets or exceeds JEDEC Standard 18 specifications

• Available in the following packages:

– Commercial: SOIC

– Military: CERDIP, LCC

FUNCTIONALBLOCKDIAGRAM

OA=B

IA=B

TheIDTlogoisaregisteredtrademarkofIntegratedDeviceTechnology,Inc.

MILITARY AND COMMERCIAL TEMPERATURE RANGES

JUNE 2002

DSC-4617/8

IDT54/74FCT521/A/B/C

FASTCMOS8-BITIDENTITYCOMPARATOR

MILITARYANDCOMMERCIAL TEMPERATURERANGES

PINCONFIGURATION

IA=B

VCC

O^A=B

INDEX

20 19

10 11 12 13

GND

CERDIP/ SOIC

TOP VIEW

LCC

TOP VIEW

ABSOLUTEMAXIMUMRATINGS⁽¹⁾

PINDESCRIPTION

Pin Names

Symbol Rating

Commercial

Military

Unit

Description

(2)

VTERM

Terminal Voltage

–0.5 to +7

A0 - A7

B0 - B7

IA = B

Word A Inputs

Word B Inputs

with Respect to GND

Terminal Voltage

(3)

VTERM

–0.5 to VCC –0.5 to VCC

Expansion or Enable Input (Active LOW)

Identity Output (Active LOW)

with Respect to GND

Operating Temperature

Temperature under BIAS

Storage Temperature

Power Dissipation

O^{A = B}

0 to +70

–55 to +125

° C

TBIAS

TSTG

–55 to +125 –65 to +135

–55 to +125 –65 to +150

FUNCTIONTABLE⁽¹⁾

0.5

IOUT

DC Output Current

120

Inputs

Output

NOTES:

IA=B

A, B

OA = B

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS 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 extended periods may affect reliability. No terminal voltage may exceed

Vcc by +0.5V unless otherwise noted.

A = B*

A ≠ B

A = B*

A ≠ B

2. Input and Vcc terminals only.

3. Output and I/O terminals only.

NOTE:

1. H = HIGH Voltage Level

L = LOW Voltage Level

*A0 = B0, A1 = B1, A2 = B2, etc.

CAPACITANCE (TA = +25°C, F = 1.0MHz)

Symbol

Parameter⁽¹⁾

Input Capacitance

Output Capacitance

Conditions

Typ.

Max. Unit

CIN

VIN = 0V

COUT

VOUT = 0V

NOTE:

1. This parameter is measured at characterization but not tested.

IDT54/74FCT521/A/B/C

FASTCMOS8-BITIDENTITYCOMPARATOR

MILITARYANDCOMMERCIAL TEMPERATURERANGES

DCELECTRICALCHARACTERISTICSOVEROPERATINGRANGE

FollowingConditions ApplyUnless OtherwiseSpecified:VLC =0.2V;VHC =VCC -0.2V

Commercial: TA = 0°C to +70°C, VCC = 5.0V ±5%, Military: TA = -55°C to +125°C, VCC = 5.0V ±10%

Symbol

VIH

Parameter

Input HIGH Level

Test Conditions⁽¹⁾

Guaranteed Logic HIGH Level

Min.

Typ.⁽²⁾

—

Max.

—

0.8

Unit

VIL

Input LOW Level

Guaranteed Logic LOW Level

—

IIH

Input HIGH Current

VI = VCC

—

(4)

VCC = Max.

VI = 2.7V

VI = 0.5V

VI = GND

—

µA

(4)

IIL

Input LOW Current

—

–5

—

–5

IOZH

IOZL

VO = VCC

—

(4)

Off State (High Impedance)

Output Current

VCC = Max.

VO = 2.7V

VO = 0.5V

VO = GND

(4)

—

–10

VIK

IOS

Clamp Diode Voltage

Short Circuit Current

OutputHIGHVoltage

VCC = Min., IIN = –18mA

–0.7

–1.2

(3)

VCC = Max., VO = GND

–60

VHC

2.4

—

–120

VCC

4.3

—

VOH

VCC = 3V, VIN = VLC or VHC, IOH = –32μA

VCC = Min

IOH = –300μA

—

VIN = VIH or VIL

IOH = –12mA MIL

—

IOH = –15mA COM'L

4.3

—

VOL

Output LOWVoltage

VCC = 3V, VIN = VLC or VHC, IOL = 300μA

GND

0.3

VLC

(4)

VCC = Min

IOL = 300μA

—

VLC

VIN = VIH or VIL

IOL = 32mA MIL

—

0.5

IOL = 48mA COM'L

—

0.3

NOTES:

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

2. Typical values are at VCC = 5.0V, +25°C ambient and maximum loading.

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

4. This parameter is guaranteed but not ttested.

IDT54/74FCT521/A/B/C

FASTCMOS8-BITIDENTITYCOMPARATOR

MILITARYANDCOMMERCIAL TEMPERATURERANGES

POWERSUPPLYCHARACTERISTICS

VLC = 0.2V; VHC = VCC - 0.2V

Symbol

Parameter

Test Conditions⁽¹⁾

Min.

Typ.⁽²⁾

Max.

Unit

ICC

Quiescent Power Supply Current

VCC = Max.

—

0.2

1.5

VIN ≥ VHC; VIN ≤ VLC

ΔICC

Quiescent Power Supply Current

TTL Inputs HIGH

VCC = Max.

VIN = 3.4V

—

0.5

(3)

ICCD

Dynamic Power Supply

Current⁽⁴⁾

VCC = Max.

Outputs Open

VIN ≥ VHC

VIN ≤ VLC

0.15

0.25

mA/

MHz

One Input Toggling

50% Duty Cycle

Total Power Supply Current^(5,6)

VCC = Max.

Outputs Open

VIN ≥ VHC

—

1.7

VIN ≤ VLC (FCT)

f^I= 10MHz

One Bit Toggling

50% Duty Cycle

VIN = 3.4V

VIN = GND

NOTES:

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

2. Typical values are at VCC = 5.0V, +25°C ambient.

3. Per TTL driven input (VIN = 3.4V). 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 ΔICC formula. These limits are guaranteed but not tested.

6. IC = IQUIESCENT + IINPUTS + IDYNAMIC

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

ICC = Quiescent Current

ΔICC = Power Supply Current for a TTL High Input (VIN = 3.4V)

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)

fi = Input Frequency

Ni = Number of Inputs at fi

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

SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE-COMMERCIAL

74FCT521A

Min.⁽²⁾

74FCT521C

Symbol

tPLH

Parameter

PropagationDelay

Ax or Bx to OA = B

PropagationDelay

IA = B to OA = B

Condition⁽¹⁾

CL = 50pF

RL = 500Ω

Max.

Min.⁽²⁾

Max.

Unit

1.5

7.2

1.5

4.5

tPHL

tPLH

1.5

4.1

tPHL

SWITCHINGCHARACTERISTICSOVEROPERATINGRANGE-MILITARY

54FCT521

54FCT521A

Min.⁽²⁾

54FCT521B

Symbol

tPLH

Parameter

PropagationDelay

Ax or Bx to OA = B

PropagationDelay

IA = B to OA = B

Condition⁽¹⁾

CL = 50pF

RL = 500Ω

Min.⁽²⁾

Max.

Min.⁽²⁾

Max.

Unit

1.5

9.5

1.5

7.3

tPHL

tPLH

1.5

7.8

1.5

tPHL

NOTES:

1. See test circuit and waveforms.

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

IDT54/74FCT521/A/B/C

FASTCMOS8-BITIDENTITYCOMPARATOR

MILITARYANDCOMMERCIAL TEMPERATURERANGES

TESTCIRCUITSANDWAVEFORMS

VCC

7.0V

SWITCHPOSITION

500W

Test

Switch

Closed

Open

VOUT

VIN

Open Drain

Disable Low

Enable Low

Pulse

Generator

D.U.T

50pF

All Other Tests

500W

DEFINITIONS:

CL = Load capacitance: includes jig and probe capacitance.

RT = Termination resistance: should be equal to ZOUT of the Pulse Generator.

Octal Link

Test Circuits for All Outputs

DATA

1.5V

INPUT

LOW-HIGH-LOW

PULSE

tSU

1.5V

TIMING

INPUT

ASYNCHRONOUS CONTROL

tREM

PRESET

1.5V

CLEAR

HIGH-LOW-HIGH

PULSE

ETC.

SYNCHRONOUS CONTROL

PRESET

1.5V

CLEAR

tSU

CLOCK ENABLE

ETC.

Pulse Width

Octal Link

Set-Up, Hold, and Release Times

ENABLE

tPZL

DISABLE

tPLZ

1.5V

SAME PHASE

CONTROL

INPUT

1.5V

INPUT TRANSITION

tPLH

tPHL

VOH

1.5V

VOL

OUTPUT

3.5V

1.5V

3.5V

OUTPUT

NORMALLY

LOW

SWITCH

CLOSED

0.3V

VOL

VOH

1.5V

tPZH

tPHZ

OPPOSITE PHASE

INPUT TRANSITION

OUTPUT

NORMALLY

HIGH

0.3V

SWITCH

OPEN

1.5V

Octal Link

Propagation Delay

Enable and Disable Times

NOTES:

1. Diagram shown for input Control Enable-LOW and input Control Disable-HIGH.

2. Pulse Generator for All Pulses: Rate ≤ 1.0MHz; ZO ≤ 50Ω; tF ≤ 2.5ns; tR ≤ 2.5ns.

IDT54/74FCT521/A/B/C

FASTCMOS8-BITIDENTITYCOMPARATOR

MILITARYANDCOMMERCIAL TEMPERATURERANGES

ORDERINGINFORMATION

IDT

FCT

XXXX

Temp. Range

Package

Process

Device Type

Blank

Commercial

MIL-STD-883, Class B

Commercial Options

Small Outline IC

Military Options

CERDIP

Leadless Chip Carrier

Fast CMOS 8-Bit Identity Comparator

521

521A

521B

521C

– 55°C to +125°C

– 0°C to +70°C

CORPORATE HEADQUARTERS

6024 Silver Creek Valley Road

San Jose, CA 95138

for SALES:

800-345-7015 or 408-284-8200

fax: 408-284-2775

for Tech Support:

logichelp@idt.com

www.idt.com

IDT74FCT521ASO8 [IDT]

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