background image

Integrated Device Technology, Inc.

FUNCTIONAL BLOCK DIAGRAM

3.3V CMOS 16-BIT

BUFFER/LINE DRIVER

IDT74FCT163244/A/C

1

Y

1

1

Y

2

1

Y

3

1

Y

4

1

A

1

1

A

2

1

A

3

1

A

4

2

OE

2

A

1

2

A

2

2

A

3

2

A

4

2

Y

1

2

Y

2

2

Y

3

2

Y

4

2532 drw 01

1

OE

3

OE

3

A

1

3

A

2

3

A

3

3

A

4

3

Y

1

3

Y

2

3

Y

3

3

Y

4

4

OE

4

A

1

4

A

2

4

A

3

4

A

4

4

Y

1

4

Y

2

4

Y

3

4

Y

4

2532 drw 02

DESCRIPTION:

The FCT163244/A/C 16-bit buffer/line drivers are built

using advanced dual metal CMOS technology.  These high-

speed, low-power devices offer bus/backplane interface ca-

pability with improved packing density.  These devices have

a flow-through organization for simplifying board layout.  The

three-state controls operate these devices in a Quad-Nibble,

Dual-Byte or single 16-bit word mode.  All inputs are designed

with hysteresis for improved noise margin.

The inputs of the FCT163244/A/C can be driven from either

3.3V or 5V devices.  This feature allows the use of these

devices as translators in a mixed 3.3V/5V supply system.

Thus, the FCT163244/A/C can be used as buffers to connect

5V components to a 3.3V bus.

1

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

FEATURES:

• 0.5 MICRON CMOS Technology

• Typical t

SK

(o) (Output Skew) < 250ps

• ESD > 2000V per MIL-STD-883, Method 3015;

> 200V using machine model (C = 200pF, R = 0)

• Packages include 25 mil pitch SSOP, 19.6 mil pitch

TSSOP and 15.7 mil pitch TVSOP

• Extended commercial range of -40

°

C to +85

°

C

• V

CC

 = 3.3V 

±

0.3V, Normal Range or

V

CC

 = 2.7 to 3.6V, Extended Range

• CMOS power levels (0.4

µ

W typ. static)

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

• Low Ground Bounce (0.3V typ.)

• Inputs (except I/O) can be driven by 3.3V or 5V

components

COMMERCIAL TEMPERATURE RANGES

AUGUST 1996

©

1996 Integrated Device Technology, Inc.

8.1

DSC-2532/7

background image

8.1

2

IDT74FCT163244/A/C

3.3V 16-BIT BUFFER/LINE DRIVER

COMMERCIAL TEMPERATURE RANGES

PIN CONFIGURATIONS

1

Y

1

GND

1

Y

3

V

CC

GND

3

Y

2

GND

V

CC

GND

1

Y

2

1

Y

4

2

Y

1

2

Y

2

2

Y

3

2

Y

4

3

Y

1

3

Y

3

3

Y

4

4

Y

1

4

Y

3

4

Y

4

4

Y

2

4

OE

1

A

1

1

A

2

GND

1

A

3

1

A

4

V

CC

2

A

1

2

A

2

2

A

3

2

A

4

3

A

1

3

A

2

3

A

3

3

A

4

V

CC

4

A

1

4

A

3

4

A

4

4

A

2

GND

GND

GND

2

OE

3

OE

2532 drw 03

39

29

30

31

32

33

34

35

36

37

38

25

26

27

28

48

47

41

42

43

44

45

46

40

1

2

3

4

5

6

7

8

9

10

12

13

14

15

16

17

18

19

20

11

21

22

23

24

SSOP/

TSSOP/TVSOP

TOP VIEW

SO48-1

SO48-2

SO48-3

1

OE

PIN DESCRIPTION

2532 tbl 01

Pin Names

Description

x

OE

3–State Output Enable Inputs (Active LOW)

xAx

Data Inputs

xYx

3-State Outputs  

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol

Description

Max.

Unit

V

TERM(2)

Terminal Voltage with

Respect to GND

–0.5 to +4.6

V

V

TERM(3)

Terminal Voltage with

Respect to GND

–0.5 to +7.0

V

V

TERM(4)

Terminal Voltage with

Respect to GND

–0.5 to  

V

CC

 + 0.5  

V

T

STG

Storage Temperature

–65 to +150

°

C

I

OUT

DC Output Current

–60 to +60   

mA

NOTES:

1. Stresses greater than those listed under ABSOLUTE MAXIMUM RAT-

INGS 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 ex-

tended periods may affect reliability.

2. Vcc  terminals.

3. Input terminals.

4. Output and I/O terminals.

2532 lnk 03

CAPACITANCE

 (T

= +25

°

C, f = 1.0MHz)

NOTE:

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

2532 lnk 04

Symbol

Parameter

(1)

Conditions

Typ.

Max.

Unit

C

IN

Input

Capacitance

V

IN

  = 0V

3.5

6.0

pF

C

OUT

Output

Capacitance

V

OUT 

= 0V

3.5

8.0

pF

NOTE:

2532 tbl 02

1. H = HIGH Voltage Level

L = LOW Voltage Level

X = Don’t Care

Z = High  Impedance

FUNCTION TABLE

(1)

Inputs

Outputs

x

OE

OE

  

xAx

xYx

L

L

L

L

H

H

H

X

Z

background image

8.1

 3

IDT74FCT163244/A/C

3.3V 16-BIT BUFFER/LINE DRIVER

COMMERCIAL TEMPERATURE RANGES

DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGE

Following Conditions Apply Unless Otherwise Specified:

Commercial: T

A

 = –40

°

C to +85

°

C, V

CC

 = 2.7V to 3.6V

2532 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

 = V

CC

 –0.6V at rated current.

Symbol

Parameter

Test Conditions

(1)

Min.

Typ.

(2)

Max.

Unit

V

IH

Input HIGH Level  (Input pins)

Guaranteed Logic HIGH Level

2.0

5.5

V

Input HIGH Level  (I/O  pins)

2.0

V

CC

+0.5

V

IL

Input LOW Level

Guaranteed Logic LOW Level

–0.5

0.8

V

(Input and I/O pins)

I

I H

Input HIGH Current (Input pins)

V

CC

 = Max.

V

I

 = 5.5V

±

1

µ

A

Input HIGH Current (I/O pins)

V

I

 = V

CC

±

1

I

I L

Input LOW Current (Input pins)

V

I

 = GND

±

1

Input LOW Current (I/O pins)

V

I

 = GND

±

1

I

OZH

High Impedance Output Current

V

CC

 = Max.

V

= V

CC

±

1

µ

A

I

OZL

(3-State Output pins)

V

O

 = GND

±

1

V

IK

Clamp Diode Voltage

V

CC

 = Min., I

IN  

= –18mA

0.7

1.2

V

I

ODH

Output HIGH Current

V

CC

 = 3.3V, V

IN 

= V

IH 

or V

IL,  

V

= 1.5V

(3)

–36

–60

–110

mA

I

ODL

Output LOW Current

V

CC

 = 3.3V, V

IN 

= V

IH 

or V

IL,  

V

= 1.5V

(3)

50

90

200

mA

V

OH

Output HIGH Voltage

V

CC

 = Min.

I

OH

 = –0.1mA  

V

CC

0.2

V

V

IN

 = V

IH 

or V

IL

I

OH

 = –3mA  

2.4

3.0

V

CC

 = 3.0V

V

IN

 = V

IH 

or V

IL

I

OH

 = –8mA  

2.4

(5)

3.0

V

OL

Output LOW Voltage

V

CC

 = Min.

I

OL

 = 0.1mA

0.2

V

V

IN

 = V

IH 

or V

IL

I

OL

 = 16mA

0.2

0.4

I

OL

 = 24mA

0.3

0.55

V

CC

 = 3.0V

V

IN

 = V

IH 

or V

IL

I

OL

 = 24mA

0.3

0.50

I

OS

Short Circuit Current

(4)

V

CC

 = Max.,  V

= GND

(3)

–60

135

–240

mA

V

H

Input Hysteresis

                                         —

150

mV

I

CCL

I

CCH

Quiescent Power Supply Current

V

CC

 = Max.,  

V

IN

 = GND or V

CC

0.1

10

µ

A

I

CCZ

background image

8.1

4

IDT74FCT163244/A/C

3.3V 16-BIT BUFFER/LINE DRIVER

COMMERCIAL TEMPERATURE RANGES

POWER SUPPLY CHARACTERISTICS

2532 tbl 06

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

 = I

QUIESCENT

 + I

INPUTS

 + I

DYNAMIC

I

C

 = I

CC

 + 

I

CC

 D

H

N

T

 + I

CCD 

 (f

CP

N

CP

/2 + fiNi)

I

CC

 = Quiescent Current (I

CCL,  

I

CCH 

and 

 

I

CCZ

)

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 D

H

I

CCD

 = 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 f

CP

f

i

 = Input Frequency

N

= Number of Inputs at fi

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

(4)

Symbol

Parameter

Test Conditions

(1)

Min.

Typ.

(2)

Max.

Unit

I

CC

Quiescent Power Supply Current

V

CC

 = Max.

V

IN

 = V

CC

  – 0.6V

(3)

2.0

30

µ

A

TTL Inputs HIGH

I

CCD

Dynamic Power Supply  

Current

(4)

V

CC

 = Max.

Outputs Open

50% Duty Cycle

x

OE

 = GND

One Input Toggling

V

IN

 = V

CC

  

V

IN

 = GND

50

75

µ

A/

MHz

I

C

Total Power Supply Current

(6)

V

CC

 = Max.

V

IN

 = V

CC

   

0.5

0.8

mA

Outputs Open

V

IN

 = GND

fi = 10MHz

50% Duty Cycle

x

OE

 = GND

V

IN

 = V

CC

 –0.6V

V

IN

 = GND

0.5

0.8

One Bit Toggling

V

CC

 = Max.

Outputs Open

fi = 2.5MHz

V

IN

 = V

CC

   

V

IN

 = GND

2.0

3.0

(5)

50% Duty Cycle

x

OE

 = GND   

Sixteen Bits Toggling

V

IN

 = V

CC

 –0.6V

V

IN

 = GND

2.0

3.3

(5)

FCT163244

FCT163244A

FCT163244C

Symbol

Parameter

Condition

(1)

Min.

(2)

Max.

Min.

(2)

Max.

Min.

(2)

Max.

Unit

t

PLH

t

PHL

Propagation Delay

xAx to xYx

C

L

 = 50pF

R

L

 = 500

1.5

6.5

1.5

4.8

1.5

4.1

ns

t

PZH

t

PZL

Output Enable Time

1.5

8.0

1.5

6.2

1.5

5.8

ns

t

PHZ

t

PLZ

Output Disable Time

1.5

7.0

1.5

5.6

1.5

5.2

ns

t

SK

(o) Output Skew

(3)

0.5

0.5

0.5

ns

2532 tbl 07

NOTES:

1. See test circuit and waveforms.

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

3. Skew between any two outputs, of the same package, switching in the same direction.  This parameter is guaranteed by design.

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

CC

 = 3.3V 

±

0.3V, Normal Range.  For V

CC

 = 2.7V to 3.6V, Extended Range, all Propagation Delays

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

background image

8.1

 5

IDT74FCT163244/A/C

3.3V 16-BIT BUFFER/LINE DRIVER

COMMERCIAL TEMPERATURE RANGES

DEFINITIONS:

C

L

=

Load capacitance: includes jig and probe capacitance.

R

=

Termination resistance: should be equal to Z

OUT 

of the Pulse

Generator.

TEST CIRCUITS AND WAVEFORMS

TEST CIRCUITS FOR ALL OUTPUTS

ENABLE AND DISABLE TIMES

PROPAGATION DELAY

SET-UP, HOLD AND RELEASE TIMES

PULSE WIDTH

SWITCH POSITION

2532 drw 09

2532 drw 07

2532 drw 05

2532 drw 06

2532 drw 08

Test

Switch

Open Drain

Disable Low

Enable Low

6V

Disable High

Enable High

GND

All Other tests

Open

2532 lnk 08

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

t

SU

t

H

t

REM

t

SU

t

H

HIGH-LOW-HIGH

PULSE

LOW-HIGH-LOW

PULSE

t

W

1.5V

1.5V

SAME PHASE

INPUT TRANSITION

3V

1.5V

0V

1.5V

V

OH

t

PLH

OUTPUT

OPPOSITE PHASE

INPUT TRANSITION

3V

1.5V

0V

t

PLH

t

PHL

t

PHL

V

OL

CONTROL

INPUT

3V

1.5V

0V

3V

0V

OUTPUT

NORMALLY

LOW

OUTPUT

NORMALLY

HIGH

SWITCH

      6V

SWITCH

GND

V

OL

0.3V

0.3V

t

PLZ

t

PZL

t

PZH

t

PHZ

3V

0V

1.5V

1.5V

ENABLE

DISABLE

V

OH

PRESET

CLEAR

CLOCK ENABLE

ETC.

Pulse

Generator

R

T

D.U.T.

V

CC

V

IN

C

L

V

OUT

50pF

500

500

GND

6V

Open

NOTES:

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

Disable-HIGH.

2. Pulse Generator for All Pulses: Rate 

 1.0MHz; t

F

 

 2.5ns; t

R

 

 2.5ns.

3. If V

CC

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

exceed V

CC

.

background image

8.1

6

IDT74FCT163244/A/C

3.3V 16-BIT BUFFER/LINE DRIVER

COMMERCIAL TEMPERATURE RANGES

ORDERING INFORMATION

IDT         XX

Temp. Range

      XXXX

Device Type

X

Package

74

–40

°

C to +85

°

C

PV

PA

PF

163244

163244A

163244C

Shrink Small Outline Package (SO48-1)

Thin Shrink Small Outline Package (SO48-2)

Thin Very Small Outline Package (SO48-3)

Non-Inverting 16-Bit Buffer/Line Driver

FCT

2532 tbl 07