Datasheet 74ACT16245TTR Datasheet (SGS Thomson Microelectronics)

74ACT16245

16-BIT BUS TRANSCEIVER

WITH 3-STATE OUTPUTS (NON INVERTED)

■ HIGH SPEED: t

■ LOW POWER DISSIPATION:

I

=8µA(MAX.) atTA=25°C

CC

■ COMPATIBLE WITHTTL OUTPUTS

V

=2V(MIN.),VIL= 0.8V (MAX.)

IH

■ 50ΩTRANSMISSION LINE DRIVING

= 4.9ns (TYP.) at VCC=5V

PD

CAPABILITY

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

|=IOL= 24mA (MIN)

OH

■ OPERATING VOLTAGE RANGE:

V

(OPR) = 4.5V to 5.5V

CC

■ IMPROVED LATCH-UP IMMUNITY

DESCRIPTION

The 74ACT16245 is an advanced high-speed CMOS 16-BIT BUS TRANSCEIVER (3-STATE) fabricated with sub-micron silicon gate and double-layer metal wiring C

2

MOS technology. This IC is intended f or two-way asyn ch ronous communication between data buses and the direction of data transmission is determined by DIR input. The enable inputs G

can be used to disable the device so that the buses are effectively isolated. All floating bus terminals during the Z-s tate must be held HIGH or LOW. All inputs and outputs are e quipped w ith protection circuits against static disc harge, giving t hem 2KV ESD immunity and transient excess voltage.

TSSOP

ORDER CODES

PACKAGE TUBE T & R

TSSOP 74ACT16245TTR

PIN CONNECTION

1/9July 2003

74ACT16245

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‘tCare Z : High Impedance

DIR A BUS B BUS Yn

IEC LOGIC SYMBOLS

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74ACT16245

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V

I

OK

I

or I

I

CC

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

T

dt/dv

1) VINfrom0.8V to 2.0V

Supply Voltage

CC

DC Input Voltage -0.5 to VCC+ 0.5

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 V

= 4.5 to 5.5V (note 1)

CC

-0.5 to +7 V

± 20 mA ± 20 mA ± 50 mA

± 400 mA

-65 to +150 °C 300 °C

4.5 to 5.5 V

CC CC

-55 to 125 °C 8 ns/V

V V

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74ACT16245

DC SPECIFICATIONS

Test Condition Value

= 25°C

Symbol Parameter

V

CC

(V)

V

I

OLD

I

OHD

1) Maximum test duration 2ms, one output loaded at time

2) Incident wave switching is guaranteed on transmission lines with impedances as low as 50Ω

High Level Input

IH

Voltage Low Level Input

V

IL

Voltage High Level Output

OH

Voltage

Low Level Output

OL

Voltage

I

Input Leakage Cur-

I

rent High Impedance

I

OZ

Output Leakage Current

Max ICC/Input

CCT

Quiescent Supply

CC

Current Dynamic Output

Current (note 1, 2)

4.5 VO= 0.1 V or V

-0.1V

CC

4.5 VO= 0.1 V or

-0.1V

5.5 1.5 0.8 0.8 0.8

4.5

5.5

4.5

5.5

4.5

5.5

4.5

5.5

V

CC

IO=-50 µA

=-50 µA

I

O

=-24 mA

I

O

=-24 mA

I

O

IO=50 µA

=50 µA

I

O

=24 mA

I

O

=24 mA

I

O

I=VIH

or GND

orV

IIL

V

I=VCC

V

VO=VCCor GND

VI=VCC- 2.1V

or GND

= 1.65 V max

= 3.85 V min

V

OLD OHD

I=VCC

T

A

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

2.0 1.5 2.0 2.0

1.5 0.8 0.8 0.8

4.4 4.49 4.4 4.4

5.4 5.49 5.4 5.4

3.86 3.76 3.7

4.86 4.76 4.7

0.001 0.1 0.1 0.1

0.36 0.44 0.5

± 0.1 ± 1 ± 1 µA

± 0.5 ± 5 ± 10 µA

0.6 1.5 1.6 mA 880160µA

-40 to 85°C -55 to 125°C

75 50 mA

-75 -50 mA

Unit

V5.5 2.0 1.5 2.0 2.0

V

AC ELECTRICAL CHARACTERISTICS (CL=50pF,RL= 500 Ω, In put tr=tf=3ns)

Test Condition Value

= 25°C

Symbol Parameter

t t t t

PZH

t t

PHZ

(*) Voltage range is5.0V ± 0.5V

Propagation Delay

PLH

Time

PHL

Output Enable

PZL

Time Output Disable-

PLZ

Time

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V

(V)

5.0

CC

T

A

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

(*)

3.5 4.6 10.5 11.5

4.8 6.5 10.2 11.1

(*)

6.1 9.2 11.6 12.6

5.5 8.0 10.0 10.9

(*)

5.6 8.3 11.8 12.7

5.0 7.3 12.6 13.4

-40 to 85°C -55 to 125°C

Unit

ns

74ACT16245

CAPACITIVE CHARACTERISTICS

Test Condition Value

= 25°C

Symbol Parameter

V

CC

(V)

C C C

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 circuit)

Input Capacitance

IN

I/O Capacitance

I/O

Power Dissipation

PD

Capacitance (note1)5.0

5.0 6 pF

5.0 14 pF

= 10MHz

f

IN

T

A

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

24 pF

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

=500Ωor equivalent

L=R1

R

T=ZOUT

of pulse generator (typically 50Ω)

Open 2V

CC

GND

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74ACT16245

WAVEFORM 1: PROPAG ATION DE LAYS (f=1MHz; 50% duty cycle)

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

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74ACT16245

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

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74ACT16245

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

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74ACT16245

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 previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics.

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