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SN74AS882ADWR PDF预览

SN74AS882ADWR

更新时间: 2024-11-20 13:13:47
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
9页 153K
描述
32-Bit Look-Ahead Carry Generator 24-SOIC 0 to 70

SN74AS882ADWR 技术参数

是否无铅:含铅是否Rohs认证:不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:PLASTIC, SO-24针数:24
Reach Compliance Code:not_compliantHTS代码:8542.39.00.01
Factory Lead Time:1 week风险等级:5.88
Is Samacsys:N其他特性:WITH HIGHER ORDER LOOKAHEAD
系列:ASJESD-30 代码:R-PDSO-G24
长度:15.4 mm负载电容(CL):50 pF
逻辑集成电路类型:LOOK-AHEAD CARRY GENERATOR位数:8
功能数量:1端子数量:24
最高工作温度:70 °C最低工作温度:
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP24,.4封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):NOT SPECIFIED
最大电源电流(ICC):70 mA传播延迟(tpd):14 ns
认证状态:Not Qualified座面最大高度:2.65 mm
子类别:Arithmetic Circuits最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):4.5 V标称供电电压 (Vsup):5 V
表面贴装:YES技术:TTL
温度等级:COMMERCIAL端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:7.5 mm
Base Number Matches:1

SN74AS882ADWR 数据手册

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ꢀꢁ ꢂꢃ ꢄꢀ ꢅ ꢅ ꢆꢄ ꢇꢈ ꢀꢁꢉ ꢃꢄ ꢀ ꢅꢅ ꢆꢄ  
ꢊ ꢆ ꢋꢌꢍ ꢎꢈ ꢏꢐ ꢐ ꢑꢋꢄꢒ ꢓꢄꢔꢈ ꢕꢄꢖꢖꢗꢈꢘ ꢓ ꢁꢓ ꢖꢄꢎꢐ ꢖꢀ  
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  
C
V
CC  
NC  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
n
G0  
P0  
G1  
P1  
2
C
3
n + 32  
Capable of Anticipating the Carry Across a  
P7  
G7  
P6  
G6  
C
4
Group of Eight 4-Bit Binary Adders  
5
C
Cascadable to Perform Look-Ahead Across  
6
n + 8  
G2  
P2  
G3  
P3  
n-Bit Adders  
7
8
n + 24  
Typical Carry Time, C to Any C , is Less  
n
n+i  
P5  
G5  
P4  
G4  
9
Than 6 ns  
10  
11  
12  
Dependable Texas Instruments Quality and  
C
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  
designer to implement look-ahead for a 32-bit ALU  
with a single package or, by cascading ’AS882As,  
full look-ahead is possible across n-bit adders.  
SN74AS882A . . . DW OR NT PACKAGE  
(TOP VIEW)  
4
3
2 1 28 27 26  
5
6
7
8
9
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.  
G1  
P1  
25 P7  
G7  
23 P6  
24  
C
n + 8  
NC  
G2  
P2  
G3  
NC  
22  
G6  
C
P5  
21  
20  
19  
’AS882A LOGIC EQUATIONS  
10  
n + 24  
11  
C
C
=
=
G1 + P1G0+P1P0C  
n
n+8  
12 13 14 15 16 17 18  
G3 + P3G2 + P3P2G1 + P3P2P1G0  
+ P3P2P1P0C  
n+16  
n
C
=
=
G5 + P5G4 + P5P4G3 + P5P4P3G2  
+ P5P4P3P2G1 + P5P4P3P2P1G0  
n+24  
n+32  
NC − No internal connection  
+ P5P4P3P2P1P0C  
n
C
G7 + P7G6 + P7P6G5 + P7P6P5G4  
+ P7P6P5P4G3 + P7P6P5P4P3G2  
+ P7P6P5P4P3P2G1 + P7P6P5P4P3P2P1G0  
+ P7P6P5P4P3P2P1P0C  
n
ꢎꢧ  
Copyright 1985, Texas Instruments Incorporated  
ꢣ ꢧ ꢤ ꢣꢜ ꢝꢱ ꢟꢞ ꢢ ꢪꢪ ꢨꢢ ꢠ ꢢ ꢡ ꢧ ꢣ ꢧ ꢠ ꢤ ꢬ  
ꢥꢧ  
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 HOUSTON, TEXAS 77001  

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