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LMA2010JC35 PDF预览

LMA2010JC35

更新时间： 2024-02-02 06:46:49
品牌 Logo 应用领域
逻辑 - LOGIC 外围集成电路输入元件时钟
页数 文件大小 规格书
7页 195K
描述
16 x 16-bit Multiplier-Accumulator

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中文翻译

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LMA2010JC35 技术参数

是否无铅： 含铅是否Rohs认证： 不符合
生命周期：Contact Manufacturer零件包装代码：LCC
包装说明：QCCJ, LDCC68,1.0SQ针数：68
Reach Compliance Code：compliantECCN代码：3A991.A.2
HTS代码：8542.39.00.01风险等级：5.31
其他特性：2 X 16 BIT DATA INPUT BUS; ICC SPECIFIED AT 5MHZ边界扫描：NO
最大时钟频率：28.57 MHz外部数据总线宽度：16
JESD-30 代码：S-PQCC-J68JESD-609代码：e0
长度：24.2316 mm低功率模式：NO
湿度敏感等级：3端子数量：68
最高工作温度：70 °C最低工作温度：
输出数据总线宽度：35封装主体材料：PLASTIC/EPOXY
封装代码：QCCJ封装等效代码：LDCC68,1.0SQ
封装形状：SQUARE封装形式：CHIP CARRIER
峰值回流温度（摄氏度）：NOT SPECIFIED电源：5 V
认证状态：Not Qualified座面最大高度：5.08 mm
子类别：DSP Peripherals最大压摆率：25 mA
最大供电电压：5.25 V最小供电电压：4.75 V
标称供电电压：5 V表面贴装：YES
技术：CMOS温度等级：COMMERCIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：J BEND
端子节距：1.27 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：24.2316 mm
uPs/uCs/外围集成电路类型：DSP PERIPHERAL, MULTIPLIER ACCUMULATOR/SUMMERBase Number Matches：1

LMA2010JC35 数据手册

 浏览型号LMA2010JC35的Datasheet PDF文件第2页浏览型号LMA2010JC35的Datasheet PDF文件第3页浏览型号LMA2010JC35的Datasheet PDF文件第4页浏览型号LMA2010JC35的Datasheet PDF文件第5页浏览型号LMA2010JC35的Datasheet PDF文件第6页浏览型号LMA2010JC35的Datasheet PDF文件第7页 
LMA1010/2010  
16 x 16-bit Multiplier-Accumulator  
DEVICES INCORPORATED  
FEATURES  
DESCRIPTION  
The LMA1010 and LMA2010 are TC, ACC, and SUB controls are latched  
high-speed, low power 16-bit on the rising edge of the logical OR of  
multiplier-accumulators. The LMA1010 CLK A and CLK B. TC specifies the  
and LMA2010 are functionally identical; input as two’s complement  
❑ 20 ns Multiply-Accumulate Time  
❑ Replaces Fairchild TMC2210,  
Cypress CY7C510, IDT 7210L,  
and AMD Am29510  
they differ only in packaging. Full mili- (TC HIGH) or unsigned magnitude  
tary ambient temperature range opera- (TC LOW). RND, when HIGH, adds ‘1’  
tion is achieved with advanced CMOS to the most significant bit position of  
❑ Two’s Complement or Unsigned  
Operands  
❑ Accumulator Performs Preload,  
technology.  
the least significant half of the product.  
Subsequent truncation of the 16 least  
significant bits produces a result  
correctly rounded to 16-bit preci-  
sion.  
Accumulate, and Subtract  
The LMA1010 and LMA2010 produce  
the 32-bit product of two 16-bit numbers.  
The results of a series of multiplications  
may be accumulated to form the sum of  
❑ Three-State Outputs  
❑ 68-pinPLCC, J-Lead  
products. Accumulation is performed to ACC and SUB control accumulator  
35-bitprecisionwiththemultiplierprod- operation. ACC HIGH results in  
uct sign extended as appropriate.  
addition of the multiplier product and  
the accumulator contents, with the result  
stored in the accumulator register on the  
rising edge of CLK R. ACC and SUB  
HIGH results in subtraction of the  
accumulator contents from the  
multiplierproduct,withtheresult stored  
in the accumulator register. With ACC  
LOW and SUB LOW, no accumulation  
occurs and the next product is loaded  
directly into the accumulator register.  
ACC LOW and SUB HIGH is undefined.  
Data present at the A and B input regis-  
ters is latched on the rising edges of  
CLK A and CLK B respectively. RND,  
LMA1010/2010 BLOCK DIAGRAM  
B
R
15-0  
15-0  
A
15-0  
16  
16  
CLK A  
CLK B  
A REGISTER  
B REGISTER  
The LMA1010/2010 output register  
(accumulator register) is divided into  
three independently controlled sec-  
tions. The least significant result  
(LSR) and most significant result  
(MSR) registers are 16 bits in length.  
The extended result register (XTR) is  
3 bits long. The output signals R15-0  
and input signals B15-0 share the same  
bidirectional pins.  
RND  
TC  
ACC  
SUB  
32  
R
R + A  
R – A  
A
OEX  
LEX  
LEM  
LEL  
35  
PASS R  
PRELOAD  
CONTROL  
LOGIC  
OEM  
OEL  
3
PREL  
Each output register has an indepen-  
dent output enable control. In addition  
to providing three-state control of the  
outputbuffers, whenOEX, OEM, orOEL  
areHIGHandPRELisHIGH,datacanbe  
preloaded via the bidirectional output  
pins into the respective output registers.  
Data present on the output pins is  
latched onthe rising edge of CLK R. The  
interrelation of PREL and the enable  
controls is summarized in Table 1.  
3
OEX  
OEM  
OEL  
LEX  
35  
LEM  
LEL  
3
16  
16  
CLK R  
ACCUMULATOR REGISTER  
OEX  
OEM  
16  
OEL  
16  
3
R
34-32  
R31-16  
Multiplier-Accumulators  
08/16/2000–LDS.10/2010-P  
1
1234567

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