AB646A Datasheet

IC型號：
AB646A
PDF描述：
OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
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24頁
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SN54ABT646A, SN74ABT646A

OCTAL BUS TRANSCEIVERS AND REGISTERS

WITH 3 STATE OUTPUTS

SCBS069H 鈭?JULY 1991 鈭?REVISED MAY 2004

Typical V

OLP

(Output Ground Bounce)

<1 V at V

= 5 V, T

= 25擄C

High-Drive Outputs (鈭?2-mA I

, 64-mA I

)

off

Supports Partial-Power-Down Mode

Operation

Latch-Up Performance Exceeds 500 mA Per

JEDEC Standard JESD-17

ESD Protection Exceeds JESD 22

鈭?2000-V Human-Body Model (A114-A)

鈭?200-V Machine Model (A115-A)

SN54ABT646A . . . FK PACKAGE

(TOP VIEW)

NC 鈭?No internal connection

description/ordering information

These devices consist of bus-transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed

transmission of data directly from the input bus or from the internal registers. Data on the A or B bus is clocked

into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input. Figure 1

illustrates the four fundamental bus-management functions that can be performed with the 鈥橝BT646A devices.

ORDERING INFORMATION

PDIP 鈭?NT

SOIC 鈭?DW

SOP 鈭?NS

鈭?0擄C to 85擄C

SSOP 鈭?DB

TSSOP 鈭?PW

TVSOP 鈭?DGV

CDIP 鈭?JT

鈭?5 C 125擄C

鈭?5擄C to 125 C

CFP 鈭?W

LCCC 鈭?FK

PACKAGE鈥?/div>

Tube

Tape and reel

Tube

Tape and reel

Tube

ORDERABLE

PART NUMBER

SN74ABT646ANT

SN74ABT646ADW

SN74ABT646ADWR

SN74ABT646ANSR

SN74ABT646ADBR

SN74ABT646APW

SN74ABT646APWR

SN74ABT646ADGVR

SNJ54ABT646AJT

SNJ54ABT646AW

SNJ54ABT646AFK

AB646A

SNJ54ABT646AJT

SNJ54ABT646AW

SNJ54ABT646AFK

ABT646A

AB646A

TOP-SIDE

MARKING

SN74ABT646ANT

鈥?Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are

available at www.ti.com/sc/package.

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.

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.

POST OFFICE BOX 655303

鈥?/div>

DALLAS, TEXAS 75265

GND

On products compliant to MIL PRF 38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.

CLKAB

SAB

DIR

GND

CLKBA

SBA

DIR

SAB

CLKAB

CLKBA

SBA

2 1 28 27 26

1112 13 14 15 16 17 18

SN54ABT646A . . . JT OR W PACKAGE

SN74ABT646A . . . DB, DGV, DW, NS, NT, OR PW PACKAGE

(TOP VIEW)

錚?/div>

2004, Texas Instruments Incorporated

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OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

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OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

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AB646A Datasheet

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