TEXAS INSTRUMENTS CY74FCT240T Technical data

查询CY54/74FCT240T供应商

CY54/74FCT240T

CY54/74FCT244T

SCCS017 - May 1994 - Revised February 2000

Features

• Function, pinout, and drive compatible with FCT and

F logic

• FCT-D speed at 3.6 ns max. (Com’l FCT244 only),

FCT-C speed at 4.1 ns max. (Com’l),
FCT-A speed at 4.8 ns max. (Com’l)

• Reduced V

FCT functions

(typically = 3.3V) versions of equivalent

OH

• Edge-rate control circuitry for significantly improved

noise characteristics

• Power-off disable feature

• ESD > 2000V

• Matched rise and fall times

• Fully compatible with TTL input and output logic levels

• Extended commercial range of −40˚C to +85˚C

Logic Block Diagram

FCT240T

OE

A

OE

B

DA

OB

DA

OB

DA

OB

DA

OB

0

0

1

1

2

2

3

3

OA

0

DB

0

OA

1

DB

1

OA

2

DB

2

OA

3

DB

3

FCT240T–1

8-Bit Buffers/Line Drivers

• Sink current 64 mA (Com’l), 48 mA (Mil)
Source current 32 mA (Com’l), 12 mA (Mil)

Functional Description

The FCT240T and FCT244T are octal buffers and line drivers
designed to be employed as memory address drivers, clock
drivers, and bus-oriented transmitters/receivers. The devices
provide speed and drive capabilities equivalent to their fastest
bipolar logic counterparts while reducing power consumption. The
input and output v oltage levels allow direct interface with TTL,
NMOS, and CMOS devices without e xternal components.

The outputs are designed with a power-off disable feature to
allow for live insertion of boards.

FCT244T

OE

A

OE

B

DA

OB

DA

OB

DA

OB

DA

OB

0

0

1

1

2

2

3

3

OA

0

DB

0

OA

1

DB

1

OA

2

DB

2

OA

3

DB

3

FCT240T–4

Pin Configurations

LCC

Top View

1

2

OB

GND

DB

OA

DB

3

DA

8

3

9
10

FCT240T

11

3

12

3

13

2

1516 17 18

14

2

OA

DA

OB2OB

765

1

1

DB

OA

4

0

DB

1

DA

3
2

1
20
19

0

OA

FCT240T–2

DA

OB

OE
V
OE

DIP/SOIC/QSOP

Top View

1

OE

A

2

DA

0

3

OB

0

4

DA

0

0

A

CC

B

OB

DA
OB
DA
OB

GND

1

5

FCT240T

1

6

2

7

2

8

3

9

3

10

20
19
18
17
16
15
14
13
12
11

V

CC

OE

B

OA

0

DB

0

OA

1

DB

1

OA

2

DB

2

OA

3

DB

3

FCT240T–3

OB

GND

DB

OA

DB

3

3

3

2

9
10
11
12
13

14

LCC

Top View

2

3

DA

DA

OB2OB

765

8

FCT244T

1516 17 18

2

1

1

OA

DB

OA

1

1

DA

4

OB

0

3

DA

0

2

OE

A

1

V

CC

20

OE

19

B

0

0

DB

OA

FCT240T–5 FCT240T–6

DIP/SOIC/QSOP

Top View

1

OE

A

2

DA

0

3

OB

0

4

DA

1

5

FCT244T

OB

1

6

DA

2

7

OB

2

8

DA

3

9

OB

3

10

GND

20

V

CC

19

OE

B

18

OA

0

17

DB

0

16

OA

1

15

DB

1

14

OA

2

13

DB

2

12

OA

3

11

DB

3

Copyright © 2000, Texas Instruments Incorporated

CY54/74FCT240T

CY54/74FCT244T

] ]

Function Table FCT240T

Inputs

A

L
L

H

Maximum Ratings

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

Storage Temperature .................................–65°C to +150°C

Ambient Temperature with

Power Applied.............................................–65°C to +135°C

Supply Voltage to Ground Potential............... –0.5V to +7.0V

DC Input Voltage............................................–0.5V to +7.0V

DC Output Voltage......................................... –0.5V to +7.0V

DC Output Current (Maximum Sink Current/Pin).......120 mA

OE

B

L
L

H

[2, 3]

[1]

Function Table FCT244T

[1]

Inputs

D

L
H
X

OutputOE

H

L

Z

A

L
L

H

OE

B

L
L

H

D

L
H
X

OutputOE

L
H
Z

Power Dissipation..........................................................0.5W

Static Discharge Voltage............................................>2001V

(per MIL-STD-883, Method 3015)

Operating Range

Range Speed

Commercial DT 0°C to +70°C 5V ± 5%
Commercial T, AT, CT –40°C to +85°C 5V ± 5%

[4]

Military

All –55°C to +125°C 5V ± 10%

Ambient

Temperature V

CC

Electrical Characteristics Over the Operating Range

Parameter Description Test Conditions Min. Typ.

V

OH

Output HIGH Voltage VCC=Min., IOH=–32 mA Com’l 2.0 V

VCC=Min., IOH=–15 mA Com’l 2.4 3.3 V
VCC=Min., IOH=–12 mA Mil 2.4 3.3 V

V

OL

Output LOW Voltage VCC=Min., IOL=64 mA Com’l 0.3 0.55 V

VCC=Min., IOL=48mA Mil 0.3 0.55 V

V

IH

V

IL

V

H

V

IK

I

I

I

IH

I

IL

I

OZH

I

OZL

I

OS

I

OFF

Notes:

1. H = HIGH Voltage Level. L = LOW Voltage Level. X = Don’t Care.

2. Unless otherwise noted, these limits are over the operating free-air temperature range.

3. Unused inputs must always be connected to an appropriate logic voltage level, preferably either V

4. T

5. Typical values are at V

6. This parameter is specified but not tested.

7. Not more than one outputshouldbeshorted at a time. Duration ofshort should notexceed one second. The use ofhigh-speedtest apparatus and/or sample
and hold techniques are preferable in order to minimizeinternal chip heatingandmoreaccurately reflect operational values. Otherwise prolonged shorting of
a high output may raise the chip temperature well above normal and thereby cause invalid readings in other parametric tests. In any sequence of parameter
tests, I

Input HIGH Voltage 2.0 V
Input LOW Voltage 0.8 V
Hysteresis

[6]

All inputs 0.2 V
Input Clamp Diode Voltage VCC=Min., IIN=–18 mA –0.7 –1.2 V
Input HIGH Current VCC=Max., VIN=V

CC

Input HIGH Current VCC=Max., VIN=2.7V ±1 µA
Input LOW Current VCC=Max., VIN=0.5V ±1 µA
Off State HIGH-Level Output

Current
Off State LOW-Level

Output Current
Output Short Circuit Current
Power-Off Disable VCC=0V, V

is the “instant on” case temperature.

A

tests should be performed last.

OS

=5.0V, TA=+25˚C ambient.

CC

VCC= Max., V

VCC = Max., V

[7]

VCC=Max., V

= 2.7V 10 µA

OUT

= 0.5V –10 µA

OUT

=0.0V –60 –120 –225 mA

OUT

=4.5V ±1 µA

OUT

or ground.

CC

[5]

Max. Unit

5 µA

2

CY54/74FCT240T

CY54/74FCT244T

]

Capacitance

Parameter Description Typ.

C

IN

C

OUT

Power Supply Characteristics

Parameter Description Test Conditions Typ.

I

CC

∆I

CC

I

CCD

I

C

Notes:

8. Per TTL driven input (V

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

10. I

C

IC=ICC+∆ICCDHNT+I
I

CC

∆I

CC

D

H

N

T

I

CCD

f

0

f

1

N

1

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

11. Values for these conditions are examples of the ICC formula. These limits are specified but not tested.

[6]

Input Capacitance 5 10 pF
Output Capacitance 9 12 pF

Quiescent Power Supply Current VCC=Max., VIN≤0.2V,

Quiescent Power Supply Current
(TTL inputs)

Dynamic Power Supply

[9]

Current

Total Power Supply Current

[10]

V
VCC=Max., VIN=3.4V,

f1=0, Outputs Open
VCC=Max., One Input Toggling,

50% Duty Cycle, Outputs Open,
V

VCC=Max., 50% Duty Cycle, Outputs Open,

–0.2V

IN≥VCC

≤0.2V or VIN≥VCC–0.2V

IN

One Bit Toggling at f
OE1=OE2=GND, VIN≤0.2V or VIN≥VCC–0.2V

VCC=Max., 50% Duty Cycle, Outputs Open,
One Bit Toggling at f
OE1=OE2=GND, VIN=3.4V or VIN=GND

VCC=Max., 50% Duty Cycle, Outputs Open,
Eight Bits Toggling at f
OE1=OE2=GND, VIN≤0.2V or VIN≥VCC–0.2V

VCC=Max., 50% Duty Cycle, Outputs Open,
Eight Bits Toggling at f
OE1=OE2=GND, VIN=3.4V or VIN=GND

=3.4V); all other inputs at VCC or GND.

IN

=I

QUIESCENT

= Quiescent Current with CMOS input levels
= Power Supply Current for a TTL HIGH input (VIN=3.4V)
= Duty Cycle for TTL inputs HIGH
= Number of TTL inputs at D
= Dynamic Current caused by an input transition pair (HLH or LHL)
= Clock frequency for registered devices, otherwise zero
= Input signal frequency
= Number of inputs changing at f

+ I

INPUTS

CCD(f0

+ I

DYNAMIC

/2 + f1N1)

H

1

[8]

=10 MHz,

1

=10 MHz,

1

=2.5 MHz,

1

=2.5 MHz,

1

[5]

OE1=OE2=GND,

Max. Unit

[5]

Max. Unit

0.1 0.2 mA

0.5 2.0 mA

0.06 0.12 mA/MHz

0.7 1.4 mA

1.0 2.4 mA

1.3 2.6

3.3 10.6

[11]

[11]

mA

mA

3

Switching Characteristics Over the Operating Range

FCT240T FCT240AT

Military Commercial Military Commercial

Parameter Description

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

Propagation Delay
Data to Input

Output Enable Time 1.5 10.5 1.5 10.0 1.5 6.5 1.5 6.2 ns 1, 7, 8

Output Disable Time 1.5 10.0 1.5 9.5 1.5 5.9 1.5 5.6 ns 1, 7, 8

Parameter Description

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

Propagation Delay Data to Input 1.5 4.7 1.5 4.3 ns 1, 2

Output Enable Time 1.5 5.7 1.5 5.0 ns 1, 7, 8

Output Disable Time 1.5 4.6 1.5 4.5 ns 1, 7, 8

[12]

Min.

Max. Min.

1.5 9.0 1.5 8.0 1.5 5.1 1.5 4.8 ns 1, 2

[12]

Max. Min.

Min.

CY54/74FCT240T

CY54/74FCT244T

[12]

Max. Min.

FCT240CT

Military Commercial

[12]

Max. Min.

[12]

[12]

Max.

Max.

Unit

Unit

Fig.

No.

Fig.

No.

[13]

[13]

FCT244T FCT244AT

Military Commercial Military Commercial

Parameter Description

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

Propagation Delay
Data to Input

Output Enable Time 1.5 8.5 1.5 8.0 1.5 6.5 1.5 6.2 ns 1, 7, 8

Output Disable Time 1.5 7.5 1.5 7.0 1.5 5.9 1.5 5.6 ns 1, 7, 8

[12]

Min.

Max. Min.

1.5 7.0 1.5 6.5 1.5 5.1 1.5 4.6 ns 1, 3

[12]

Military Commercial Commercial

Parameter Description

t

PLH

t

PHL

t

PZH

t

PZL

t

PHZ

t

PLZ

Notes:

12. Minimum limits are specified but not tested on Propagation Delays.

13. See “Parameter Measurement Information” in the General Information section.

Propagation Delay Data to Input 1.5 4.6 1.5 4.1 1.5 3.6 ns 1, 3

Output Enable Time 1.5 6.5 1.5 5.8 1.5 4.8 ns 1, 7, 8

Output Disable Time 1.5 5.7 1.5 5.2 1.5 4.0 ns 1, 7, 8

Min.

[12]

Max. Min.

[12]

Max. Min.

[12]

FCT244CT FCT244DT

Max. Min.

[12]

Max. Min.

[12]

Max.

Max.

Unit

Unit

Fig.

No.

Fig.

No.

[13]

[13]

4

CY54/74FCT240T

CY54/74FCT244T

Ordering Information—FCT240T

Speed

(ns) Ordering Code

4.3 CY74FCT240CTSOC/SOCT S5 20-Lead (300-Mil) Molded SOIC Commercial
CY74FCT240CTQCT Q5 20-Lead (150-Mil) QSOP

4.8 CY74FCT240ATSOC/SOCT S5 20-Lead (300-Mil) Molded SOIC Commercial
CY74FCT240ATQCT Q5 20-Lead (150-Mil) QSOP

5.1 CY54FCT240ATDMB D6 20-Lead (300-Mil) CerDIP Military
CY54FCT240ATLMB L61 20-Pin Square Leadless Chip Carrier

8.0 CY74FCT240TSOC/SOCT S5 20-Lead (300-Mil) Molded SOIC Commercial
CY74FCT240TQCT Q5 20-Lead (150-Mil) QSOP

9.0 CY54FCT240TDMB D6 20-Lead (300-Mil) CerDIP Military

Ordering Information—FCT244T

Speed

(ns) Ordering Code

3.6 CY74FCT244DTQCT Q5 20-Lead (150-Mil) QSOP Commercial
CY74FCT244DTSOC/SOCT S5 20-Lead (300-Mil) Molded SOIC

4.1 CY74FCT244CTSOC/SOCT S5 20-Lead (300-Mil) Molded SOIC Commercial
CY74FCT244CTQCT Q5 20-Lead (150-Mil) QSOP

4.6 CY54FCT244CTDMB D6 20-Lead (300-Mil) CerDIP Military

4.6 CY74FCT244ATPC P5 20-Lead (300-Mil) Molded DIP Commercial
CY74FCT244ATSOC/SOCT S5 20-Lead (300-Mil) Molded SOIC
CY74FCT244ATQCT Q5 20-Lead (150-Mil) QSOP

5.1 CY54FCT244ATDMB D6 20-Lead (300-Mil) CerDIP Military
CY54FCT244ATLMB L61 20-Pin Square Leadless Chip Carrier

6.5 CY74FCT244TSOC/SOCT S5 20-Lead (300-Mil) Molded SOIC Commercial
CY74FCT244TQCT Q5 20-Lead (150-Mil) QSOP

7.0 CY54FCT244TDMB D6 20-Lead (300-Mil) CerDIP Military
CY54FCT244TLMB L61 20-Pin Square Leadless Chip Carrier

Shaded areas contain preliminary information.

Document #: 38-00259-B

Package

Name Package Type

Package

Name Package Type

Operating

Operating

Range

Range

5

Package Diagrams

CY54/74FCT240T

CY54/74FCT244T

20-Lead (300-Mil) CerDIP D6

MIL-STD-1835 D- 8 Config.A

20-Pin Square Leadless Chip Carrier L61

MIL-STD-1835 C-2A

20-Lead (300-Mil) Molded DIP P5

6

Package Diagrams (continued)

CY54/74FCT240T

CY54/74FCT244T

20-Lead Quarter Size Outline

20-Lead (300-Mil) Molded SOIC

Q5

S5

7

IMPORTANT NOTICE

T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue
any product or service without notice, and advise customers to obtain the latest version of relevant information
to verify, before placing orders, that information being relied on is current and complete. All products are sold
subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those
pertaining to warranty, patent infringement, and limitation of liability.

TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in
accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent
TI deems necessary to support this warranty . Specific testing of all parameters of each device is not necessarily
performed, except those mandated by government requirements.

CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF
DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL
APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR
WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER
CRITICAL APPLICA TIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICATIONS IS UNDERST OOD TO
BE FULLY AT THE CUSTOMER’S RISK.

In order to minimize risks associated with the customer’s applications, adequate design and operating
safeguards must be provided by the customer to minimize inherent or procedural hazards.

TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent
that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other
intellectual property right of TI covering or relating to any combination, machine, or process in which such
semiconductor products or services might be or are used. TI’s publication of information regarding any third
party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.

Copyright  2000, Texas Instruments Incorporated