Datasheet IDT74FCT3244PYB, IDT74FCT3244PY, IDT74FCT3244PB, IDT74FCT3244P, IDT74FCT3244DB Datasheet (Integrated Device Technology)

Integrated Device Technology, Inc.

DESCRIPTION:

The FCT3244/A octal buffer/line drivers are built using
advanced dual metal CMOS technology. These high-speed,
low-power buffers are designed to be used as memory data
and address drivers, clock drivers, and bus-oriented transmit­ter/receivers. The three-state controls are designed to oper­ate these devices in a dual-nibble or single-byte mode. All
inputs are designed with hysteresis for improved noise mar­gin.

IDT54/74FCT3244/A

3.3V CMOS OCTAL
BUFFER/LINE DRIVER

1Y1

1

Y

2

1

Y

3

1

Y

4

1

A

1

1A2

1

A

3

1

A

4

2

OE

2A1

2A2

2

A

3

2

A

4

2

Y

1

2

Y

2

2

Y

3

2

Y

4

2779 drw 01

1

OE

The IDT logo is a registered trademark of Integrated Device Technology, Inc.

1

2779 drw 02

FEATURES:

• 0.5 MICRON CMOS Technology

• ESD > 2000V per MIL-STD-883, Method 3015;
> 200V using machine model (C = 200pF, R = 0)

• 25 mil Center SSOP and QSOP Packages

• Extended commercial range of -40°C to +85°C

•V

CC = 3.3V ±0.3V, Normal Range or

VCC = 2.7V to 3.6V, Extended Range

• CMOS power levels (0.4µW typ. static)

• Rail-to-Rail output swing for increased noise margin

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

MILITARY AND COMMERCIAL TEMPERATURE RANGES DECEMBER 1995

1996 Integrated Device Technology, Inc. 8.11 DSC-2779/4

PIN CONFIGURATIONSFUNCTIONAL BLOCK DIAGRAM

5
6
7
8
9
10

1
2
3
4

20
19
18
17
16
15
14
13
12
11GND

A

1

Y

4

A2

1

OE

Y

3

A3
Y2

A4
Y

1

1

Y

2A
1Y
2A

1Y
2A

1Y
2A

Vcc

1

2

OE

4
2

3
3

2
4

1

P20-1

D20-1
SO20-2
SO20-7

&

SO20-8

1
2
1

2

1

2

1

2

DIP/SOIC/SSOP/QSOP

TOP VIEW

IDT54/74FCT3244/A

3.3V CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

8.11 2

NOTE:

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

PIN DESCRIPTION

ABSOLUTE MAXIMUM RATINGS

(1)

CAPACITANCE (TA = +25°C, f = 1.0MHz)

FUNCTION TABLE

(1)

2779 tbl 01

2779 tbl 02

2779 lnk 04

NOTE:

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

Symbol Rating Commercial Military Unit

VTERM

(2)

Terminal Voltage
with Respect to
GND

–0.5 to +4.6 –0.5 to +4.6 V

VTERM

(3)

Terminal Voltage
with Respect to
GND

–0.5 to +7.0 –0.5 to +7.0 V

VTERM

(4)

Terminal Voltage
with Respect to
GND

–0.5 to

V

CC + 0.5

–0.5 to

VCC + 0.5

V

TA Operating

Temperature

–40 to +85 –55 to +125 °C

TBIAS Temperature

Under Bias

–55 to +125 –65 to +135 °C

TSTG Storage

Temperature

–55 to +125 –65 to +150 °C

PT Power Dissipation 1.0 1.0 W
IOUT DC Output

Current

–60 to +60 –60 to +60 mA

2779 lnk 03

Symbol Parameter

(1)

Conditions Typ. Max. Unit

C

IN

Input
Capacitance

VIN = 0V 3.5 6.0

pF

C

OUT

Output
Capacitance

V

OUT

= 0V 4.0 8.0

pF

NOTES:

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.

2. Vcc terminals.

3. Input terminals.

4. Output and I/O terminals.

Pin Names Description

x

OE

3–State Output Enable Inputs (Active LOW)
xAx Data Inputs
xYx 3-State Outputs

Inputs Outputs

x

OEOE xAx xYx

LL

L

LHH
HXZ

IDT54/74FCT3244/A

3.3V CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

8.11 3

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:
Commercial: TA = –40°C to +85°C, VCC = 2.7V to 3.6V; Military: TA = –55°C to +125°C, VCC = 2.7V to 3.6V

Symbol Parameter Test Conditions

(1)

Min. Typ.

(2)

Max. Unit

VIH Input HIGH Level (Input pins) Guaranteed Logic HIGH Level 2.0 — 5.5 V

Input HIGH Level (I/O pins) 2.0 — VCC+0.5

VIL Input LOW Level Guaranteed Logic LOW Level –0.5 — 0.8 V

(Input and I/O pins)

II H Input HIGH Current (Input pins)

(6)

VCC = Max. VI = 5.5V — — ±1 µA

Input HIGH Current (I/O pins)

(6)

VI = VCC — — ±1

II L Input LOW Current (Input pins)

(6)

VI = GND — — ±1

Input LOW Current (I/O pins)

(6)

VI = GND — — ±1
IOZH High Impedance Output Current VCC = Max. VO = VCC — — ±1 µA
IOZL (3-State Output pins)

(6)

VO = GND — — ±1
VIK Clamp Diode Voltage VCC = Min., IIN = –18mA — –0.7 –1.2 V
IODH Output HIGH Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V

(3)

–36 –60 –110 mA

IODL Output LOW Current VCC = 3.3V, VIN = VIH or VIL, VO = 1.5V

(3)

50 90 200 mA

VOH Output HIGH Voltage VCC = Min. IOH = –0.1mA VCC–0.2 — — V

VIN = VIH or VIL IOH = –3mA 2.4 3.0 —
VCC = 3.0V

V

IN = VIH or VIL

IOH = –6mA MIL.

I

OH = –8mA COM'L.

2.4

(5)

3.0 —

VOL Output LOW Voltage VCC = Min. IOL = 0.1mA — — 0.2 V

VIN = VIH or VIL IOL = 16mA — 0.2 0.4

IOL = 24mA — 0.3 0.55

VCC = 3.0V
V

IN = VIH or VIL

IOL = 24mA — 0.3 0.50

IOS Short Circuit Current

(4)

VCC = Max., VO = GND

(3)

–60 –135 –240 mA
VH Input Hysteresis — — 150 — mV
ICCL

ICCH

Quiescent Power Supply Current VCC = Max.,

V

IN = GND or VCC

COM'L. — 0.1 10 µA

ICCZ MIL. — 0.1 100

2779 lnk 05

NOTES:

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 Vcc = 3.3V, +25°C ambient.

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 tested.

5. V

OH = VCC –0.6V at rated current.

6. The test limits for this parameter is ± 5µA at T

A = –55°C.

IDT54/74FCT3244/A

3.3V CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

8.11 4

NOTES:

1. See test circuit and waveforms.

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

3. Propagation Delays and Enable/Disable times are with V

CC = 3.3V ±0.3V, Normal Range. For VCC = 2.7V to 3.6V, Extended Range, all Propagation Delays

and Enable/Disable times should be degraded by 20%.

POWER SUPPLY CHARACTERISTICS

FCT3244 FCT3244A

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

Symbol Parameter Condition

(1)

Min.

(2)

Max. Min.

(2)

Max. Min.

(2)

Max. Min.

(2)

Max. Unit

tPLH
tPHL

Propagation Delay
xAx to xYx

CL = 50pF

R

L = 500Ω

1.5 6.5 1.5 7.0 1.5 4.8 1.5 5.1 ns

tPZH
tPZL

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

tPHZ
tPLZ

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

2779 tbl 07

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

(3)

NOTES:

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

CC = 3.3V, +25°C ambient.

3. Per TTL driven input; all other inputs at V

CC 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 the I

CC formula. These limits are guaranteed but not tested.

6. I

C = IQUIESCENT + IINPUTS + IDYNAMIC

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

CC = Quiescent Current (ICCL, ICCH and ICCZ)

∆I

CC = Power Supply Current for a TTL High Input

D

H = Duty Cycle for TTL Inputs High

N

T = Number of TTL Inputs at DH

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

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

N

CP = Number of Clock Inputs at fCP

fi = Input Frequency
N

i = Number of Inputs at fi

2779 tbl 06

Symbol Parameter Test Conditions

(1)

Min. Typ.

(2)

Max. Unit

∆ICC Quiescent Power Supply Current VCC = Max. VIN = VCC – 0.6V

(3)

— 2.0 30 µA

ICCD Dynamic Power Supply

Current

(4)

VCC = Max.
Outputs Open
50% Duty Cycle
xOE = GND
One Input Toggling

VIN = VCC
V

IN = GND

—6085µA/

MHz

IC Total Power Supply Current

(6)

VCC = Max. VIN = VCC — 0.6 0.9 mA
Outputs Open VIN = GND
fi = 10MHz
50% Duty Cycle

x

OE

= GND

VIN = VCC –0.6V
V

IN = GND

— 0.6 0.9

One Bit Toggling
VCC = Max.

Outputs Open
fi = 2.5MHz

VIN = VCC
VIN = GND

— 1.2 1.7

(5)

50% Duty Cycle
xOE = GND
Eight Bits Toggling

VIN = VCC –0.6V
V

IN = GND

— 1.2 1.8

(5)

IDT54/74FCT3244/A

3.3V CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

8.11 5

NOTES:

1. Diagram shown for input Control Enable-LOW and input Control Disable­HIGH.

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

F ≤ 2.5ns; tR ≤ 2.5ns.

3. If V

CC is below 3V, input voltage swings should be adjusted not to exceed

V

CC.

3V

1.5V
0V

3V

1.5V
0V

3V

1.5V
0V

3V

1.5V

0V

DATA

INPUT

TIMING

INPUT

ASYNCHRONOUS CONTROL

PRESET

CLEAR

ETC.

SYNCHRONOUS CONTROL

tSU

tH

tREM

tSU

tH

HIGH-LOW-HIGH

PULSE

LOW-HIGH-LOW

PULSE

tW

1.5V

1.5V

SAME PHASE

INPUT TRANSITION

3V

1.5V
0V

1.5V

V

OH

tPLH

OUTPUT

OPPOSITE PHASE

INPUT TRANSITION

3V

1.5V
0V

tPLH tPHL

tPHL

VOL

CONTROL

INPUT

3V

1.5V
0V

3V

0V

OUTPUT

NORMALLY

LOW

OUTPUT

NORMALLY

HIGH

SWITCH
6V

SWITCH
GND

VOL

0.3V

0.3V

t

PLZtPZL

tPZH tPHZ

3V

0V

1.5V

1.5V

ENABLE DISABLE

VOH

PRESET

CLEAR

CLOCK ENABLE

ETC.

Pulse

Generator

R T

D.U.T.

V

CC

V IN

C

L

V

OUT

50pF

500Ω

500Ω

GND

6V

←

Open

ENABLE AND DISABLE TIMESPROPAGATION DELAY

SET-UP, HOLD AND RELEASE TIMES PULSE WIDTH

SWITCH POSITION

TEST CIRCUITS AND WAVEFORMS
TEST CIRCUITS FOR ALL OUTPUTS

2779 drw 07

2779 drw 05

2779 drw 04

2779 drw 03

2779 drw 06

Test Switch

Open Drain

Disable Low

Enable Low

6V

Disable High

Enable High

GND

All Other tests Open

DEFINITIONS:

C

L= Load capacitance: includes jig and probe capacitance.

R

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

Generator.

2779 lnk 08

IDT54/74FCT3244/A

3.3V CMOS OCTAL BUFFER/LINE DRIVER MILITARY AND COMMERCIAL TEMPERATURE RANGES

8.11 6

ORDERING INFORMATION

2779 drw 08

IDT XX FCT

XX

Device TypeXPackage

X

Process

Blank
B

P
D
SO
PY
Q

244
244A

Commercial
MIL-STD-883, Class B

Plastic DIP (P20-1)
CERDIP (D20-1)
Small Outline IC (SO20-2)
Shrink Small Outline Package (SO20-7)
Quarter-size Small Outline Package (SO20-8)

Non-Inverting Octal Buffer/Line Driver

54
74

–55°C to +125°C
–40°C to +85°C

Temp. Range

X

Family

3 3.3 Volt