SGS Thomson Microelectronics 74ACT16245TTR Datasheet

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

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) 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

V
V

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