Integrated Device Technology Inc. IDT54FCT16501AT, IDT54FCT16501CT, IDT54FCT16501ET, IDT54FCT162501AT, IDT54FCT162501CT User Manual

查询IDT54FCT240ADB供应商



Integrated Device Technology, Inc.

FAST CMOS OCTAL
BUFFER/LINE DRIVER

IDT54/74FCT240/A/C
IDT54/74FCT241/A/C
IDT54/74FCT244/A/C
IDT54/74FCT540/A/C
IDT54/74FCT541/A/C

FEATURES:

• IDT54/74FCT240/241/244/540/541 equivalent to FAST
speed and drive

• IDT54/74FCT240A/241A/244A/540A/541A 25% faster
than FAST

• IDT54/74FCT240C/241C/244C/540C/541C up to 55%
faster than FAST

•IOL = 64mA (commercial) and 48mA (military)

• CMOS power levels (1mW typ. static)

• Product available in Radiation Tolerant and Radiation
Enhanced versions

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

• Meets or exceeds JEDEC Standard 18 specifications

FUNCTIONAL BLOCK DIAGRAMS
2529 cnv* 01–03

OE

DA
OB
DA
OB
DA

OB
DA

OB

A

OE

0

0

1

1

2
2

3

3

OA
DB
OA

DB
OA

DB
OA

DB

OE

A

B
0

DA

0

0

OB

0

DA
OB
DA

OB
DA

OB

1

1

2

2

3

3

1
1

2
2

3
3

DESCRIPTION:

TM

The IDT octal buffer/line drivers are built using an advanced
dual metal CMOS technology. The IDT54/74FCT240/A/C,
IDT54/74FCT241/A/C and IDT54/74FCT244/A/C are designed
to be employed as memory and address drivers, clock drivers
and bus-oriented transmitter/receivers which provide improved
board density.

The IDT54/74FCT540/A/C and IDT54/74FCT541/A/C are
similar in function to the IDT54/74FCT240/A/C and IDT54/
74FCT244/A/C, respectively, except that the inputs and out­puts are on opposite sides of the package. This pinout
arrangement makes these devices especially useful as output
ports for microprocessors and as backplane drivers, allowing
ease of layout and greater board density.

241 Only

OEB*
OA
DB

OA
DB

OA
DB

OA
DB

OE

A

0

0

1
1

2
2

3
3

D

0

D

1

D

2

D

3

D

4

D

5

D

6

D

7

OE

O0*
O1*

O
O
O
O
O
O

B

2

*

3

*

4

*

5

*

6

*

7

*

IDT54/74FCT240

IDT54/74FCT241/244

*OEB for 241, OEB for 244

IDT54/74FCT540/541

*Logic diagram shown for 'FCT540.
'FCT541 is the non-inverting option.

2606 dwg 01–03

The IDT logo is a registered trademark of Integrated Device Technology, Inc.
FAST is a trademark of National Semiconductor Co.

MILITARY AND COMMERCIAL TEMPERATURE RANGES MAY 1992

1992 Integrated Device Technology, Inc. 7.8 DSC-4610/3

1

IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN CONFIGURATIONS

IDT54/74FCT240
2529 cnv* 04–09

OEA
DA0

OB0
DA1

OB1
DA2
OB2
DA3
OB3

GND

IDT54/74FCT241/244

20

2
3

4
5
6
7
8
9

P20-1
D20-1

SO20-2

E20-1

19
18
17
16
15

&

14
13
12

10 11

DIP/SOIC/CERPACK

TOP VIEW

VCC1
OE

OA0
DB0

OA1
DB1

OA2
DB2
OA3

DB3

B

INDEX

DA1
OB1
DA2

OB2
DA3

DA0

OB0

OEA

3 2 20 19

4

1

5
6

L20-2

7
8

9 10111213

3

DB

OB3

GND

LCC

TOP VIEW

VCC

OA3

OEB

18
17
16
15
14

DB2

OA0
DB0
OA1
DB1

OA2

OEA
DA0

OB0
DA1

OB1
DA2
OB2
DA3
OB3

GND

*OEB for 241,

OE

B for 244

IDT54/74FCT540/541

OEA

D0
D1

D2

D3
D4
D5
D6

D7

GND

*

O

X for 540, OX for 541

20

2
3
4

5
6
7
8
9

P20-1
D20-1

SO20-2

E20-1

19
18
17
16
15

&

14
13
12

10 11

DIP/SOIC/CERPACK

TOP VIEW

20

2
3
4

5
6
7
8
9

P20-1
D20-1

SO20-2

E20-1

19
18
17

16
15

&

14
13
12

10 11

DIP/SOIC/CERPACK

TOP VIEW

VCC1
OE

OA
DB0
OA1
DB1

OA2
DB2
OA3
DB3

CC1

V
OE

O0*

1*

O

2*

O

3*

O

4*

O

5*

O

6*

O
O7*

INDEX

VCC

DA0

OB0

B*
0

DA1
OB1
DA2

OB2
DA3

3 2 20 19

4

1

5
6

L20-2
7
8

OEB*

OEA

18

OA0

17

DB0
OA1

16

DB1

15

OA2

14

9 10111213

3

3

DB

OA3

OB

GND

DB2

LCC

TOP VIEW

INDEX

D1

D0

VCC

OEA

B

3 2 20 19

D2 O0*
D

D4
D5

D6

4

3

5
6
7
8

1

L20-2

OEB

18
17
16
15
14

1*

O
O

2*
3*

O
O

4*

9 10111213

7

D

GND

6*

5*

O7*

O

O

LCC

TOP VIEW

2606 cnv* 04–09

7.8 2

IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

PIN DESCRIPTION FUNCTION TABLE

Pin Names Description

OE

A, OEB 3–State Output Enable Inputs (Active LOW)

(1)

OEB

3–State Output Enable Input (Active HIGH)
Dxx Inputs
Oxx Outputs

NOTE: 2606 tbl 04

1. OEB for 241 only.

(1)

OE

OE

Inputs

A

OE

B

OE

OE

(2)

B

D 240 241 244 540 541

Outputs

LLHLHL
LLHHLHHLH
HHLXZZZZZ

NOTES:

1. H = High Voltage Level
X = Don’t Care
L = Low Voltage Level
Z = High Impedance

2. OE

B for 241 only.

(1)

LHL

2606 tbl 05

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol Rating Commercial Military Unit

(2)

V

TERM

Terminal Voltage

–0.5 to +7.0 –0.5 to +7.0 V
with Respect to
GND

(3)

V

TERM

Terminal Voltage

–0.5 to V

CC

–0.5 to V

CC

V
with Respect to
GND

T

A

Operating

0 to +70 –55 to +125°C

Temperature

T

BIAS

Temperature

–55 to +125 –65 to +135°C

Under Bias

T

STG

Storage

–55 to +125 –65 to +150°C

Temperature

P
I

OUT

T

Power Dissipation 0.5 0.5 W
DC Output

120 120 mA

Current

NOTES: 2606 tbl 01

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 V

2. Input and V

3. Outputs and I/O terminals only.

CC by +0.5V unless otherwise noted.

CC terminals only.

CAPACITANCE (TA = +25°C, f = 1.0MHz)

Symbol Parameter

C

IN

Input
Capacitance

C

OUT

Output
Capacitance

NOTE: 2606 tbl 02

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

(1)

Conditions Typ. Max. Unit

VIN = 0V 6 10 pF

V

OUT

= 0V 8 12 pF

7.8 3

IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified: 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 Parameter Test Conditions

(1)

Min. Typ.

VIH Input HIGH Level Guaranteed Logic HIGH Level 2.0 — — V
VIL Input LOW Level Guaranteed Logic LOW Level — — 0.8 V
II H Input HIGH Current VCC = Max. VI = VCC —— 5µA

VI = 2.7V — — 5

II L Input LOW Current VI = 0.5V — — –5

VI = GND — — –5

IOZH Off State (High Impedance) VCC = Max. VO = VCC ——10µA

Output Current VO = 2.7V — — 10

IOZL VO = 0.5V — — –10

VO = GND — — –10
VIK Clamp Diode Voltage VCC = Min., IN = –18mA — –0.7 –1.2 V
IOS Short Circuit Current VCC = Max.

(3)

, VO = GND –60 –120 — mA

VOH Output HIGH Voltage VCC = 3V, VIN = VLC or VHC, IOH = –32µAVHC VCC —V

VCC = Min. IOH = –300µAVHC VCC —
VIN = VIH or VIL IOH = –12mA MIL. 2.4 4.3 —

IOH = –15mA COM'L. 2.4 4.3 —
VOL Output LOW Voltage VCC = 3V, VIN = VLC or VHC, IOL = 300µA — GND VLC V

VCC = Min. IOL = 300µA — GND VLC
VIN = VIH or VIL IOL = 48mA MIL. — 0.3 0.55

IOL = 64mA COM'L. — 0.3 0.55

NOTES: 2606 tbl 03

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

2. Typical values are at V

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

4. This parameter is guaranteed but not tested.

CC = 5.0V, +25°C ambient and maximum loading.

(2)

Max. Unit

(4)

(4)

(4)

(4)

(4)

7.8 4

IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

POWER SUPPLY CHARACTERISTICS

VLC = 0.2V; VHC = VCC – 0.2V

Symbol Parameter Test Conditions

ICC Quiescent Power Supply Current VCC = Max.

IN ≥ VHC; V IN ≤ VLC

V

∆ICC Quiescent Power Supply Current

TTL Inputs HIGH

ICCD Dynamic Power Supply

(4)

Current

VCC = Max.

IN = 3.4V

V

(3)

VCC = Max.
Outputs Open

A = OEB = GND or

OE

A = GND,

OE

B = VCC

OE

(1)

IN ≥ VHC

V

IN ≤ VLC

V

Min. Typ.

— 0.2 1.5 mA

— 0.5 2.0 mA

— 0.15 0.25 mA/

One Input Toggling
50% Duty Cycle

IC Total Power Supply Current

(6)

VCC = Max.
Outputs Open
fi = 10MHz

IN ≥ VHC

V

IN ≤ VLC

V

(FCT)

— 1.7 4.0 mA

50% Duty Cycle

OE

A = OEB = GND or
A = GND,

OE

B = VCC

OE

V

IN = 3.4V
IN = GND

V

— 2.0 5.0

One Bit Toggling
VCC = Max.
Outputs Open
fi = 5MHz

IN ≥ VHC

V

IN ≤ VLC

V

(FCT)

— 3.2 6.5

50% Duty Cycle

OE

A = OEB = GND or
A = GND,

OE

B = VCC

OE

V

IN = 3.4V
IN = GND

V

— 5.2 14.5

Eight Bits Toggling

NOTES: 2606 tbl 06

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

2. Typical values are at V

3. Per TTL driven input (V

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 I

6. I

C = IQUIESCENT + IINPUTS + IDYNAMIC

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

CC = Quiescent Current

I

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

∆I
D

H = Duty Cycle for TTL Inputs High
T = Number of TTL Inputs at DH

N
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)

CP = Clock Frequency for Register Devices (Zero for Non-Register Devices)

f
f

i = Input Frequency

i = Number of Inputs at fi

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

CC = 5.0V, +25°C ambient.

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

CC formula. These limits are guaranteed but not tested.

(2)

Max. Unit

MHz

(5)

(5)

7.8 5

IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT240

54/74FCT240 54/74FCT240A 54/74FCT240C

Com'l. Mil. Com'l. Mil. Com'l. Mil.

Symbol Parameter Condition Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit

tPLH
tPHL

tPZH
tPZL
tPHZ
tPLZ

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244(1,2)

Propagation Delay

N to ON

D

CL = 50pF

L = 500Ω

R

1.5 8.0 1.5 9.0 1.5 4.8 1.5 5.1 1.5 4.3 1.5 4.7 ns

Output Enable Time 1.5 10.0 1.5 10.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns

Output Disable Time 1.5 9.5 1.5 10.0 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT241 AND FCT244

54/74FCT241/244 54/74FCT241A/244A 54/74FCT241C/244C
Com'l. Mil. Com'l. Mil. Com'l. Mil.

Symbol Parameter Condition Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit

tPLH
tPHL

tPZH
tPZL
tPHZ
tPLZ

Propagation Delay

N to ON

D

CL = 50pF

L = 500Ω

R

1.5 6.5 1.5 7.0 1.5 4.8 1.5 5.1 1.5 4.1 1.5 4.6 ns

Output Enable Time 1.5 8.0 1.5 8.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns

Output Disable Time 1.5 7.0 1.5 7.5 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns

(1,2)

2606 tbl 07

(1,2)

2606 tbl 08

SWITCHING CHARACTERISTICS OVER OPERATING RANGE FOR FCT540 AND FCT541

54/74FCT540/541 54/74FCT540A/541A 54/74FCT540C/541C

Com'l. Mil. Com'l. Mil. Com'l. Mil.

Symbol Parameter Condition Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Min. Max. Unit

tPLH
tPHL

tPLH
tPHL

tPZH
tPZL
tPHZ
tPLZ

NOTES: 2606 tbl 09

1. See test circuit and waveforms.

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

Propagation Delay

N to ON

D
IDT54/74FCT540

L = 50pF

C

R

L = 500Ω

1.5 8.5 1.5 9.5 1.5 4.8 1.5 5.1 1.5 4.3 1.5 4.7 ns

Propagation Delay

N to ON

D

1.5 8.0 1.5 9.0 1.5 4.8 1.5 5.1 1.5 4.1 1.5 4.6 ns

IDT54/74FCT541
Output Enable Time 1.5 10.0 1.5 10.5 1.5 6.2 1.5 6.5 1.5 5.8 1.5 6.5 ns

Output Disable Time 1.5 9.5 1.5 10.0 1.5 5.6 1.5 5.9 1.5 5.2 1.5 5.7 ns

(1,2)

7.8 6

IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS

VCC

500Ω

Pulse

Generator

VIN

D.U.T.

RT

VOUT

50pF

CL

500Ω

7.0V

SWITCH POSITION

Test Switch

Open Drain

Disable Low Closed

Enable Low

All Other Tests Open

DEFINITIONS: 2606 tbl 10

CL = Load capacitance: includes jig and probe capacitance.

T = Termination resistance: should be equal to ZOUT of the Pulse

R

Generator.

SET-UP, HOLD AND RELEASE TIMES PULSE WIDTH

DATA

INPUT

TIMING

INPUT

ASYNCHRONOUS CONTROL

PRESET

CLEAR

ETC.

SYNCHRONOUS CONTROL

PRESET

CLOCK ENABLE

CLEAR

ETC.

t

tSU

SU

t

REM

t

t

H

H

3V

1.5V
0V

3V

1.5V
0V

3V

1.5V
0V

3V

1.5V
0V

LOW-HIGH-LOW

HIGH-LOW-HIGH

PULSE

PULSE

1.5V

t

W

1.5V

SAME PHASE

INPUT TRANSITION

OUTPUT

OPPOSITE PHASE

INPUT TRANSITION

t

t

PLH

PLH

ENABLE AND DISABLE TIMESPROPAGATION DELAY

ENABLE DISABLE

3V

1.5V

t

PHL

t

PHL

0V
V

OH

1.5V
V

OL

3V

1.5V
0V

CONTROL

INPUT

OUTPUT

NORMALLY

LOW

OUTPUT

NORMALLY

HIGH

t

PZL

SWITCH
CLOSED

t

PZH

SWITCH
OPEN

3.5V

1.5V

1.5V
0V

t

PHZ

t

PLZ

NOTES 2606 drw 10

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

2. Pulse Generator for All Pulses: Rate ≤ 1.0 MHz; Z
t

R ≤ 2.5ns.

3V

1.5V
0V

3.5V

0.3V

V

OL

V

OH

0.3V
0V

O ≤ 50Ω; tF ≤ 2.5ns;

7.8 7

IDT54/74FCT240/241/244/540/541/A/C
FAST CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

ORDERING INFORMATION

IDT XX

Temp. Range

FCT

XXXX

Device TypeXPackage

X

Process

Blank
B

P
D
SO
L
E

240
241
244
540
541
240A
241A
244A
540A
541A
240C
241C
244C
540C
541C

Commercial
MIL-STD-883, Class B

Plastic DIP
CERDIP
Small Outline IC
Leadless Chip Carrier
CERPACK

Inverting Octal Buffer/Line Driver
Non-Inverting Octal Buffer/Line Driver
Non-Inverting Octal Buffer/Line Driver
Inverting Octal Buffer/Line Driver
Non-Inverting Octal Buffer/Line Driver
Fast Inverting Octal Buffer/Line Driver
Fast Non-Inverting Octal Buffer/Line Driver
Fast Non-Inverting Octal Buffer/Line Driver
Fast Inverting Octal Buffer/Line Driver
Fast Non-Inverting Octal Buffer/Line Driver
Super Fast Inverting Octal Buffer/Line Driver
Super Fast Non-Inverting Octal Buffer/Line Driver
Super Fast Non-Inverting Octal Buffer/Line Driver
Super Fast Inverting Octal Buffer/Line Driver
Super Fast Non-Inverting Octal Buffer/Line Driver

54
74

–55°C to +125°C
0°C to +70°C

2606 cnv* 15

7.8 8