SN74LVCH16652A

16-BIT BUS TRANSCEIVER AND REGISTER

WITH 3-STATE OUTPUTS

SCAS319G – NOVEMBER 1993 – REVISED JUNE 1998

1

POST OFFICE BOX 655303

Widebus

™ Family

CMOS) Submicron Process

Live Insertion

All Ports (5-V Input/Output Voltage With

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

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

JESD 17

Need for External Pullup/Pulldown

Resistors

Shrink Small-Outline (DL) and Thin Shrink

Small-Outline (DGG) Packages

description

This 16-bit bus transceiver and register is

The

SN74LVCH16652A

consists

of

D-type

flip-flops and control circuitry arranged for

multiplexed transmission of data directly from the

data bus or from the internal storage registers.

The device can be used as two 8-bit transceivers

or one 16-bit transceiver.

Complementary output-enable (OEAB and OEBA) inputs control the transceiver functions. Select-control (SAB

and SBA) inputs 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 SN74LVCH16652A.

Copyright

© 1998, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

EPIC and Widebus are trademarks of Texas Instruments Incorporated.

DGG OR DL PACKAGE

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1OEAB

1CLKAB

1SAB

GND

1A1

1A2

1A3

1A4

1A5

GND

1A6

1A7

1A8

2A1

2A2

2A3

GND

2A4

2A5

2A6

2A7

2A8

GND

2SAB

2CLKAB

2OEAB

1OEBA

1CLKBA

1SBA

GND

1B1

1B2

1B3

1B4

1B5

GND

1B6

1B7

1B8

2B1

2B2

2B3

GND

2B4

2B5

2B6

2B7

2B8

GND

2SBA

2CLKBA

2OEBA