Members of the Texas Instruments

WidebusE Family

State-of-the-Art Advanced BiCMOS

Technology (ABT) Design for 3.3-V

Operation and Low Static-Power

Dissipation

Support Mixed-Mode Signal Operation

(5-V Input and Output Voltages With

3.3-V VCC)

Support Unregulated Battery Operation

Down to 2.7 V

Typical VOLP (Output Ground Bounce)

< 0.8 V at VCC = 3.3 V, TA = 25°C

Ioff and Power-Up 3-State Support Hot

Insertion

Bus Hold on Data Inputs Eliminates the

Need for External Pullup/Pulldown

Resistors

Distributed VCC and GND Pin Configuration

Minimizes High-Speed Switching Noise

Flow-Through Architecture Optimizes PCB

Layout

Latch-Up Performance Exceeds 500 mA Per

JESD 17

ESD Protection Exceeds 2000 V Per

MIL-STD-883, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

Package Options Include Plastic Shrink

Small-Outline (DL) and Thin Shrink

Small-Outline (DGG) Packages and 380-mil

Fine-Pitch Ceramic Flat (WD) Package

Using 25-mil Center-to-Center Spacings

description

The ’LVTH16652 devices are 16-bit bus transceivers designed for low-voltage (3.3-V) VCC operation, but with

the capability to provide a TTL interface to a 5-V system environment. These devices can be used as two 8-bit

transceivers or one 16-bit transceiver.

Output-enable (OEAB and OEBA) inputs are provided to control the transceiver functions. Select-control (SAB

and SBA) inputs are provided to select whether real-time or stored data is transferred. A low input level selects

real-time data, and a high input level selects stored data. The circuitry used for select control eliminates the

typical decoding glitch that occurs in a multiplexer during the transition between stored and real-time data.

Figure 1 illustrates the four fundamental bus-management functions that can be performed with the

’LVTH16652 devices.