Datasheet 74AC16245TTR Datasheet (SGS Thomson Microelectronics)

WITH 3-STATE OUTPUTS (NON INVERTED)

■ HIGH SPEED:

t

= 4.5 ns (TYP.) at VCC=5V

PD

■ LOW POWER DISSIPATION:

I

=4µA (MAX.) at TA=25°C

CC

■ HIGH NOISE IMMUNITY:

V

NIH=VNIL

■ POWER DOWN PROTECTION ON INPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

|=IOL=24mA(MIN)

OH

■ BALANCED PROPAGAT ION DE LAYS:

t

≅ t

PLH

■ OPERATING VOLTAGE RANGE:

V

(OPR) = 2V to 6V

CC

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 16245

■ IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The 74AC16245 is an advanced high-speed
CMOS 16-BIT BUS TRANSCEIVER (3-STATE)
fabricated with sub-micron silicon gate and dou­ble-layer metal wiring C
This IC is intended for two -wa y asynch ronous
communication between data busses; the
direction of data transmission is determined by
DIR input. The enable input G
disable the device so that the busses are
effectively isolated.
All inputs and outputs are equipped with protec­tion circuits against static discharge, giving them
2KV ESD immunity and t r ans ient excess voltage.
All floating bus terminals during High Z State must
be held HIGH or LOW.

= 28% VCC(MIN.)

PHL

2

MOS technology.

canbeusedto

74AC16245

16-BIT BUS TRANSCEIVER

TSSOP

ORDER CODES

PACKAGE TUBE T & R

TSSOP 74AC16245TTR

PIN CONNECTION

1/9July 2003

74AC16245

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

PIN No SYMBOL NAME AND FUNCTION

1 1DIR Directional Control

2, 3, 5, 6, 8, 9,

11, 12

13,14,16,17,

19, 20, 22, 23

24 2DIR Directional Control
25 2G

36,35,33,32,

30, 29, 27, 26

47,46,44,43,

41, 40, 38, 38

48 1G

4, 10, 15, 21,

28, 34, 39, 45

7, 18, 31, 42

1B1 to 1B8 Data Inputs/Outputs

2B1 to 2B8 Data Inputs/Outputs

Output Enable Input

2A1 to 2A8 Data Inputs/Outputs

1A1 to 1A8 Data Inputs/Outputs

Output Enable Input

GND Ground (0V)

V

CC

Positive Supply Voltage

TRUTH TABLE

INPUTS FUNCTION OUTPUT

G

L L OUTPUT INPUT A = B
L H INPUT OUTPUT B = A

HXZZZ

X :Don’t Care
Z : High Impedance

DIR A BUS B BUS Yn

IEC L OGIC SYMBOLS

2/9

74AC16245

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

V

V

I

I

OK

I

or I

I

CC

T

T

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied

RECOMMENDED OPERATING CONDITIONS

Symbol Parameter Value Unit

V

V

V

T

dt/dv

1) VINfrom30% to 70% of V

Supply Voltage

CC

DC Input Voltage

I

DC Output Voltage -0.5 to VCC+ 0.5

O

DC Input Diode Current

IK

DC Output Diode Current
DC Output Current

O

DC VCCor Ground Current

GND

Storage Temperature

stg

Lead Temperature (10 sec)

L

Supply Voltage

CC

Input Voltage 0 to V

I

Output Voltage 0 to V

O

Operating Temperature

op

Input Rise and Fall Time (note 1) V

CC

= 3.0, 4.5 or 5.5

CC

-0.5 to +7.0 V

-0.5 to +7.0 V

± 20 mA
± 20 mA
± 25 mA

± 200 mA

-65 to +150 °C
300 °C

2to6 V

CC
CC

-55 to 125 °C
0 to 8 ns/V

V

V
V

3/9

74AC16245

DC SPECIFICATIONS

Symbol Parameter

V

V

V

I

High Level Input

IH

Voltage

V

Low Level Input

IL

Voltage

High Level Output

OH

Voltage

Low Level Output

OL

Voltage

Input Leakage

I

I

Current
High Impedance

I

OZ

Output Leakage
Current

Quiescent Supply

CC

Current

Test Condition Value

=25°C

T

V

CC

(V)

3.0

5.5 3.85 2.75 3.85 3.85

3.0

5.5 2.75 1.65 1.65 1.65

3.0

4.5

5.5

3.0

4.5

5.5

3.0

4.5

5.5

3.0

4.5

5.5

5.5

5.5

V

= 0.1 V or

O

V

-0.1V

CC

= 0.1 V or

V

O

V

-0.1V

CC

IO=-50 µA

=-50 µA

I

O

=-50 µA

I

O

=-12 mA

I

O

=-24 mA

I

O

=-24 mA

I

O

IO=50 µA

=50 µA

I

O

=50 µA

I

O

=12 mA

I

O

I

=24 mA

O

I=VIH

or GND

or V

IL

V

I=VCC

V

VO=VCCor GND

V

I=VCC

or GND

A

Min. Typ. Max. Min. Max. Min. Max.

2.1 1.5 2.1 2.1

1.5 0.9 0.9 0.9

2.9 2.99 2.9 2.9

4.4 4.49 4.4 4.4

5.4 5.49 5.4 5.4

2.56 2.46 2.46

3.86 3.76 3.76

4.86 4.76 4.76

0.002 0.1 0.1 0.1

0.001 0.1 0.1 0.1

0.001 0.1 0.1 0.1

-40 to 85°C -55 to 125°C

0.36 0.44 0.44

0.36 0.44 0.44

± 0.1 ± 1 ± 1 µA

± 0.5 ± 5 ± 5 µA

44040µA

Unit

V4.5 3.15 2.25 3.15 3.15

V4.5 2.25 1.35 1.35 1.35

V

V

AC ELECTRICAL CHARACTERISTICS (C

Test Condition Value

Symbol Parameter

t

PLHtPHL

t

PZLtPZH

t

PLZtPHZ

(*) Voltagerangeis3.3V ± 0.3V
(**) Voltage range is 5.0V ± 0.5V

Propagation Delay
Time

Output Enable
Time

Output Disable
Time

4/9

3.3

5.0

3.3

5.0

3.3

5.0

V

(V)

CC

(*)

(**)

(*)

(**)

(*)

(**)

C

(pF)

L

=50pF,RL= 500 Ω, In put tr=tf=3ns)

L

= 25°C

T

A

-40 to 85°C -55 to 125°C

Min. Typ. Max. Min. Max. Min. Max.

6 6.3 8.5 9.0

4.5 5.0 6.5 7.5
8 8.5 11.0 12.0

5.5 6.0 7.0 8.0

7.5 8.0 9.3 10.0

5.7 6.0 7.0 8.0

Unit

ns

ns

ns

74AC16245

CAPACITIVE CHARACTERISTICS

Test Condition Value

= 25°C

Symbol Parameter

C
C
C

Input Capacitance

IN

Input Output

I/O

Capacitance
Power Dissipation

PD

Capacitance

V

(V)

5.0

CC

= 10MHz

f

IN

T

A

Min. Typ. Max. Min. Max. Min. Max.

710 10 10pF

14 pF

25 pF

(note 1)

1) CPDis defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average operating current can be obtained by the following equation. I
Latch)

TEST CIRCUIT

-40 to 85°C -55 to 125°C

CC(opr)=CPDxVCCxfIN+ICC

Unit

/16(per

TEST SWITCH

t

PLH,tPHL

t

PZL,tPLZ

t

PZH,tPHZ

CL= 50 pF or equivalent (includes jig and probe capacitance)

=R1=1KΩ orequivalent

R

L

R

T=ZOUT

of pulse generator (typically 50Ω)

Open
2V

CC

GND

5/9

74AC16245

WAVEFORM 1: PROPAGATION DELAYS (f=1MHz; 50% duty cycle)

WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIME (f=1MHz; 50% duty cycle)

6/9

74AC16245

TSSOP48 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 1.2 0.047

A1 0.05 0.15 0.002 0.006

A2 0.9 0.035

b 0.17 0.27 0.0067 0.011

c 0.09 0.20 0.0035 0.0079

D 12.4 12.6 0.488 0.496

E 8.1 BSC 0.318 BSC

E1 6.0 6.2 0.236 0.244

e 0 .5 BSC 0.0197 BSC

K0˚ 8˚0˚ 8˚

L 0.50 0.75 0.020 0.030

A2

A

A1

b

e

D

K

c

E1

L

E

PIN 1 IDENTIFICATION

1

7065588C

7/9

74AC16245

Tape & Reel TSSOP48 MECHANICAL DATA

mm. inch

DIM.

MIN. TYP MAX. MIN. TYP. MAX.

A 330 12.992
C 12.8 13.2 0.504 0.519
D 20.2 0.795
N 60 2.362

T 30.4 1.197
Ao 8.7 8.9 0.343 0.350
Bo 13.1 13.3 0.516 0.524
Ko 1.5 1.7 0.059 0.067
Po 3.9 4.1 0.153 0.161

P 11.9 12.1 0.468 0.476

8/9

74AC16245

Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use o f suc h inf ormat ion n or f or an y infr ingeme nt of paten ts or oth er ri gh ts of third part ies whic h may resul t f rom
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
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systems without express written approval of STMicroelectronics.

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