SGS Thomson Microelectronics 74ALVCH16245T Datasheet

1/10July 2003

■ 3.6V TOLERANT INPUTS A N D OUTPUTS

■ HIGH SPEED:

t

PD

= 3.0 ns (MAX.) at VCC=3.0to3.6V

t

PD

= 3.7 ns (MAX.) at VCC=2.3to2.7V

t

PD

=6 ns (MAX.) at VCC= 1.65V

■ POWER DOWN PROTECTION ON INPUTS

AND OUTPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

|I

OH

|=IOL= 24mA (MIN) at VCC=3.0V

|I

OH

|=IOL= 12mA (MIN) at VCC=2.3V

|I

OH

|=IOL=4mA(MIN)atVCC= 1.65V

■ OPERATING VOLTAGE RANGE:

V

CC

(OPR) = 1.65V to 3.6V

■ BUS HOLD PROVIDED ON DATA INPUTS

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 16245

■ LATCH-UP PERFORMANCE EXCEEDS

300mA (JESD 17)

■ ESD PERFORMANCE:

HBM > 2 000V (MIL STD 883 method 3015);
MM > 200V

DESCRIPTION

The 74ALVCH16245 is a low voltage CMOS 16
BIT BUS TRANSCEIVER fabricated with
sub-micron silicon gate and five-layer metal wiring
C

2

MOS tec hnology. It is ideal for low p ower and
very high speed 1.65 to 3.6V applications; it can
be interfaced to 3.6V signal env ironment for both
inputs and outputs.
This IC is intended for two-way asynchronous
communication between data busses; the
direction of data transmission is determined by
DIR input. The enable input G

canbeusedto
disable the device so that the busses are
effectively isolated.
Bus hold on data inputs is prov ided in order to
eliminate the need for exte rnal pull-up or
pull-down resistor.
All inputs and outputs are equipped with
protection circuits against st atic discharge, giving
them 2KV ESD immunity and transient excess
voltage.

74ALVCH16245

LOW VOLTAGE CMOS 16-BIT TRANSCEIVER (3-STATE)

WITH 3.6V TOLERANT INPUTS AN D OUTPUTS

ORDER CODES

PACKAGE TUBE T & R

TSSOP 74ALVCH16245TTR

TSSOP

PIN CONNECTION

74ALVCH16245

2/10

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION

TRUTH TABLE

Z : High Impedance
X : Don‘tCare

IEC L OGIC SYMBOLS

PIN No SYMBOL NAME AND FUNCTION

1 1DIR Directional Control

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

11, 12

1B1 to 1B8 Data Inputs/Outputs

13,14,16,17,

19, 20, 22, 23

2B1 to 2B8 Data Inputs/Outputs

24 2DIR Directional Control
25 2G

Output Enable Input

36,35,33,32,

30, 29, 27, 26

2A1 to 2A8 Data Inputs/Outputs

47,46,44,43,

41, 40, 38, 38

1A1 to 1A8 Data Inputs/Outputs

48 1G

Output Enable Input

4, 10, 15, 21,

28, 34, 39, 45

GND Ground (0V)

7, 18, 31, 42

V

CC

Positive Supply Voltage

INPUTS FUNCTION OUTPUT

G

DIR A BUS B BUS Yn

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

HXZZZ

74ALVCH16245

3/10

ABSOLUTE MAXIMUM RATINGS

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

1) I

O

absolute maximum rating must be observed

2) V

O

<GND,VO>V

CC

RECOMMENDED OPERATING CONDITIONS

1) VINfrom0.8V to 2V at VCC=3.0V

Symbol Parameter Value Unit

V

CC

Supply Voltage

-0.5 to +4.6 V

V

I

DC Input Voltage

-0.5 to +4.6 V

V

O

DC Output Voltage (OFF State)

-0.5 to +4.6 V

V

O

DC Output Voltage (High or Low State) (note 1) -0.5 to VCC+ 0.5

V

I

IK

DC Input Diode Current

-50 mA

I

OK

DC Output Diode Current (note 2)

-50 mA

I

O

DC Output Current

± 50 mA

I

CC

or I

GND

DC VCCor Ground Current per Supply Pin

± 100 mA

P

D

Power Dissipation

400 mW

T

stg

Storage Temperature

-65 to +150 °C

T

L

Lead Temperature (10 sec)

300 °C

Symbol Parameter Value Unit

V

CC

Supply Voltage

1.65 to 3.6 V

V

I

Input Voltage

-0.3 to 3.6 V

V

O

Output Voltage (OFF State)

0 to 3.6 V

V

O

Output Voltage (High or Low State) 0 to V

CC

V

I

OH,IOL

High or Low Level Output Current (VCC= 3.0 to 3.6V)

± 24 mA

I

OH,IOL

High or Low Level Output Current (VCC= 2.3 to 2.7V)

± 12 mA

I

OH,IOL

High or Low Level Output Current (VCC= 1.65V)

± 4mA

T

op

Operating Temperature

-55 to 125 °C

dt/dv Input Rise and Fall Time (note 1) 0 to 10 ns/V