SN54LVT16501, SN74LVT16501

3.3-V ABT 18-BIT UNIVERSAL BUS TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS147G – MAY 1992 – REVISED NOVEMBER 1996

1

POST OFFICE BOX 655303

Technology (ABT) Design for 3.3-V

Operation and Low-Static Power

Dissipation

Widebus

™ Family

Down to 2.7 V

Combines D-Type Latches and D-Type

Flip-Flops for Operation in Transparent,

Latched, or Clocked Mode

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

Using Machine Model

(C = 200 pF, R = 0)

Per JEDEC Standard JESD-17

Need for External Pullup/Pulldown

Resistors

Minimizes High-Speed Switching Noise

PCB Layout

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 capability to provide a TTL interface to a 5-V system environment.

Data flow in each direction is controlled by output-enable (OEAB and OEBA), latch-enable (LEAB and LEBA),

and clock (CLKAB and CLKBA) inputs. For A-to-B data flow, the devices operate in the transparent mode when

LEAB is high. When LEAB is low, the A data is latched if CLKAB is held at a high or low logic level. If LEAB is

low, the A-bus data is stored in the latch/flip-flop on the low-to-high transition of CLKAB. When OEAB is high,

the outputs are active. When OEAB is low, the outputs are in the high-impedance state.

Copyright

© 1996, 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.

Widebus and UBT are trademarks of Texas Instruments Incorporated.

SN54LVT16501 . . . WD PACKAGE

SN74LVT16501 . . . DGG OR DL PACKAGE

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OEAB

LEAB

A1

GND

A2

A3

A4

A5

A6

GND

A7

A8

A9

A10

A11

A12

GND

A13

A14

A15

A16

A17

GND

A18

OEBA

LEBA

GND

CLKAB

B1

GND

B2

B3

B4

B5

B6

GND

B7

B8

B9

B10

B11

B12

GND

B13

B14

B15

B16

B17

GND

B18

CLKBA

GND