Datasheet > SN54AS882A_08

SN54AS882A_08

更新时间： 2024-10-02 02:58:27

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
9页	142K
描述
32-BIT LOOK-AHEAD CARRY GENERATORS

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SN54AS882A_08 数据手册

SN54AS882A, SN74AS882A

32-BIT LOOK-AHEAD CARRY GENERATORS

SDAS235 – D2661, DECEMBER 1982 – REVISED NOVEMBER 1985

SN54AS882A . . . JT PACKAGE

SN74AS882A . . . DW OR NT PACKAGE

• Directly Compatible With ’AS181B,

’AS1181, ’AS881B, and ’AS1881 ALUs

(TOP VIEW)

• Package Options Include Plastic Small

Outline Packages, Both Plastic and

Ceramic Chip Carriers, and Standard

Plastic and Ceramic 300-mil DIPs

n + 32

• Capable of Anticipating the Carry Across a

Group of Eight 4-Bit Binary Adders

• Cascadable to Perform Look-Ahead Across

n + 8

n-Bit Adders

n + 24

• Typical Carry Time, C to Any C , is Less

n+i

Than 6 ns

• Dependable Texas Instruments Quality and

n – 16

GND

Reliability

description

SN54AS882A . . . FK PACKAGE

The ’AS882A is a high-speed look-ahead carry

generator capable of anticipating the carry across

a group of eight 4-bit adders permitting the

designertoimplementlook-aheadfora32-bitALU

with a single package or, by cascading ’AS882As,

full look-ahead is possible across n-bit adders.

SN74AS882A . . . DW OR NT PACKAGE

(TOP VIEW)

2 1 28 27 26

The SN54AS882A is characterized for operation

over the full military temperature range of –55°C

to 125°C. The SN74AS882A is characterized for

operation from 0°C to 70°C.

25 P7

23 P6

n + 8

’AS882A LOGIC EQUATIONS

n + 24

G1 + P1G0+P1P0C

n+8

12 13 14 15 16 17 18

G3 + P3G2 + P3P2G1 + P3P2P1G0

+ P3P2P1P0C

n+16

G5 + P5G4 + P5P4G3 + P5P4P3G2

+ P5P4P3P2G1 + P5P4P3P2P1G0

n+24

n+32

NC – No internal connection

+ P5P4P3P2P1P0C

G7 + P7G6 + P7P6G5 + P7P6P5G4

+ P7P6P5P4G3 + P7P6P5P4P3G2

+ P7P6P5P4P3P2G1 + P7P6P5P4P3P2P1G0

+ P7P6P5P4P3P2P1P0C

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 • DALLAS, TEXAS 75265

12 3 4 5 6 7...9

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