SGS Thomson Microelectronics 74VCXH32245LBR, 74VCXH32245LB Datasheet

74VCXH32245

LOW VOLTAGE CMOS 32-BIT BUS TRANSCEIVER

(3-STATE) WIT H 3.6V TOLERANTAT INPUTS AND OUTPUTS

PRELIMINARY DATA

■ 3.6V TOLERANT INPUTS AND OUTPUTS

■ HIGH SPEED:

= 2.5ns (MAX.) at VCC = 3.0 to 3.6V

= 3.0ns (MAX.) at VCC = 2.3 to 2.7V

■ POWER DOWN PROTECTION ON INPUT S

AND OUTPUTS

■ SYMMETRICAL OUTPUT IMPEDANCE:

| = IOL = 24mA (MIN) at VCC = 3V

| = IOL = 18mA (MIN) at VCC = 2.3V

■ OPERATING VOLTAGE RANGE:

(OPR) = 1.65V to 3.6V

■ PIN AND FUNCTION COMPATIBLE WITH

74 SERIES 32245

■ BUS HOLD PROVIDED ON BOTH SIDE

■ LATCH-UP PERFORMANCE EXCEEDS

300mA

■ ESD PERFORMANCE:

HBM > 2000V (MIL STD 883 method 3015); MM > 200V

DESCRIPTION

The 74VCXH32245 is a low voltage CMOS QUAD 32-BIT BUS TRANSCEIVER (3-STATE) fabricated with sub-micron silicon gate and five-layer metal wiring C

MOS technology. It is ideal for 1.65 to 3.6 V applications; it can be interfaced to 3.6V signal enviroment for both inputs and outputs.

LFBGA96

(Top and Bottom view)

ORDER CODES

PACKAGE TRAY T & R

LFBGA96 74VCXH32245LB 74VCXH32245LBR

This IC is intended for two-way asynchronous communication between data buses: the direction of data trasmission is determined by DIR input. Any nG

contol output governs four BUS TRANSCEIVER. Output Enable input (nG together gives full 32-bit operation. When nG LOW, the output are on. When nG output are in high impedance state so that the buses are effectively isolated. Bus hold on data inputs is provided in order to eliminate the need for external pull-up or pull-down resistor. All inputs and outputs are equipped with protection circuits against stat ic discharge, giving them 2KV ESD immunity and transient excess voltage.

) tied

is HIGH, the

LOGIC DIAGRAM

1/10December 2001

This is preliminary information on a new product now in development are or undergoing evaluation. Details subject to change without notice.

74VCXH32245

PIN CONNECTION

TERMINAL ASSIGNMENT

ABCDEFGHJKLMNPRT

61A2 1A4 1A6 1A8 2A2 2A4 2A6 2A7 3A2 3A4 3A6 3A8 4A2 4A4 4A6 4A7 5 1A1 1A3 1A5 1A7 2A1 2A3 2A5 2A8 3A1 3A3 3A5 3A7 4A1 4A3 A45 4A8 4 1G 3 1DIR G ND

GND

GND GND GND GND

2 1B1 1B3 1B5 1B7 2B1 2B3 2B5 2B8 3B1 3B3 3B5 3B7 4B1 4B3 B45 4B8

GND 2G 3G GND

GND 2DIR 3DIR G ND

GND GND GND GND

GND 4G GND 4DI R

1 1B2 1B4 1B6 1B8 2B2 2B4 2B6 2B7 3B2 3B4 3B6 3B8 4B2 4B4 4B6 4B7

INPUT AND OUTPUT EQUIVALENT CIRCUIT

PIN DESCRIPTION TRUTH TABLE

SYMBOL NAME AND FUNCTION

nDIR Directional Control nA1 to nA8 Data Inputs/Outputs nB1 to nB8 Data Inputs/Outputs

Output Enable Input

GND Ground (0V)

Positive Supply Voltage

2/10

INPUTS FUNCTION OUTPUT

DIR A BUS B BUS Yn

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

HXZZZ

X : Don‘t Ca re Z : High Impedance

74VCXH32245

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

V V V

or I

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

1) I

absolute ma xim um rating must be observ ed

< GND

2) V

RECOMMENDED OPERATING CONDITIONS

Supply Voltage

DC Input Voltage

DC Output Voltage (VCC = 0V)

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

DC Input Diode Current

DC Output Diode Current (note 2) DC Output Current

DC VCC or Ground Current per Supply Pin

GND

Power Dissipation

Storage Temperature

stg

Lead Temperature (10 sec)

-0.5 to +4.6 V

-0.5 to +4.6 V V

- 50 mA

± 50 mA ± 50 mA

± 100 mA

400 mW

-65 to +150 °C

300 °C

Symbol Parameter Value Unit

I I

V V V

OH OH

Supply Voltage (note 1)

Input Voltage

Output Voltage (VCC = 0V)

Output Voltage (High or Low State) 0 to V

, I

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

, I

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

Operating Temperature

1.65 to 3.6 V

-0 to 3.6 V 0 to 3.6 V

± 24 mA ± 18 mA

-40 to +85 °C

dt/dv Input Rise and Fall Time (note 2) 0 to 10 ns/V

1) Truth T abl e guarante ed: 1.2V to 3.6 V from 0.8V to 2V at VCC = 3.0V

2) V

3/10

+ 7 hidden pages