Datasheet > IDT7052L20PFG

IDT7052L20PFG

更新时间： 2024-11-28 14:51:23

品牌	Logo	应用领域
艾迪悌 - IDT		静态存储器内存集成电路
页数	文件大小	规格书
6页	72K
描述
Four-Port SRAM, 2KX8, 20ns, CMOS, PQFP120, 14 X 14 MM, 1.40 MM HEIGHT, GREEN, PLASTIC, TQFP-120

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IDT7052L20PFG 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Active	零件包装代码：	QFP
包装说明：	LFQFP, QFP120,.63SQ,16	针数：	120
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.32.00.41	风险等级：	5.21
最长访问时间：	20 ns	其他特性：	AUTOMATIC POWER-DOWN
I/O 类型：	COMMON	JESD-30 代码：	S-PQFP-G120
JESD-609代码：	e3	长度：	14 mm
内存密度：	16384 bit	内存集成电路类型：	FOUR-PORT SRAM
内存宽度：	8	湿度敏感等级：	3
功能数量：	1	端口数量：	4
端子数量：	120	字数：	2048 words
字数代码：	2000	工作模式：	ASYNCHRONOUS
最高工作温度：	70 °C	最低工作温度：
组织：	2KX8	输出特性：	3-STATE
封装主体材料：	PLASTIC/EPOXY	封装代码：	LFQFP
封装等效代码：	QFP120,.63SQ,16	封装形状：	SQUARE
封装形式：	FLATPACK, LOW PROFILE, FINE PITCH	并行/串行：	PARALLEL
峰值回流温度（摄氏度）：	260	电源：	5 V
认证状态：	Not Qualified	座面最大高度：	1.6 mm
最大待机电流：	0.0006 A	最小待机电流：	2 V
子类别：	SRAMs	最大压摆率：	0.25 mA
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：	CMOS	温度等级：	COMMERCIAL
端子面层：	Matte Tin (Sn) - annealed	端子形式：	GULL WING
端子节距：	0.4 mm	端子位置：	QUAD
处于峰值回流温度下的最长时间：	30	宽度：	14 mm
Base Number Matches：	1

IDT7052L20PFG 数据手册

USING THE IDT7052/7054

FOURPORT™ SRAMs

APPLICATION

NOTE

IN DSP AND MATRIX

AN-42

PROCESSING APPLICATIONS

By Tao Lin, Julie Lin, and Yupling Chung

Introduction

Most digital signal processing (DSP) algorithms have inherent par-

allelism and may be pipelined. Usually, these algorithms are computa-

tion intensive. In real-time applications, multiprocessor or parallel dis-

tributed processor systems are commonly used to implement these

DSP algorithms. In these types of systems it is necessary for different

processors to randomly and independently access different locations at

the same time in the same memory space. The IDT7052 (2Kx8) and

IDT7054 (4Kx8) FourPort RAMs are powerful devices to efficiently

and compactly implement the memory space in these applications. More-

over, the IDT7052 and IDT7054 can increase the speed of these

types of systems since the FourPort SRAMs are as fast as conven-

tional SRAMs and eliminate the complex external logic which intro-

duces extra delay in these systems. In this application note, we will

demonstrate some examples of using the IDT7052 to implement a high

performance FFT processor and a matrix multiplication engine.

jΩ

G = C + e

H = C - e

• D

jΩ

2684 drw 01

Figure 1. The signal flow graph of the butterfly

where C, D, G, and H are complex numbers. Figure 1 shows the

signal flow graph of the butterfly with one complex multiplication and

two complex additions. Given N = 2L input data samples x(0), x(1).....,

x(N-1), the FFT algorithm performs the Discrete Fourier Transform on

the input data to obtain the output data X(0), X(1)....., X(N-1) in L

stages of computation. Each stage consists of N/2 butterfly operations.

There are two basic versions of the FFT algorithm: decimation-in-time

(DIT) and decimation-in-frequency (DIF). Each version of the algo-

rithm can be implemented using two schemes: not-in-place computation

and in-place computation. A detailed discussion of the FFT algorithm

and its implementations is given in Reference (1).

Using the IDT7052 in an FFT

Processor

The IDT7052 FourPort SRAM can dramatically simplify the design

of a high-speed pipelined FFT processor. The basic operation of any

FFT algorithm is the butterfly computation:

Figure 2 shows the signal flow graph of the not-in-place computa-

tion of the DIT FFT algorithm for N = 8(L=3). A close look at Figure 2

will reveal the major strength of the not-in-place scheme. The signal

G = C + e^jW• D

(1-1)

H = C - e^jW• D

x(0)

X(0)

W⁰

W²

x(1)

x(2)

x(3)

x(4)

x(5)

x(6)

x(7)

X(4)

X(2)

W⁰

W¹

X(6)

X(1)

W²

X(5)

X(3)

W⁰

W²

W³

X(7)

Stage 2

Stage 3

Stage 1

W^k

2684 drw 02

-j2πk/N

Figure 2. Signal Flow Graph of Not-In-Place Decimation-In-Time FFT for N=8

MARCH 2000

6.01

2684/2

12 3 4 5 6

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与IDT7052L20PFG相关器件

型号	品牌	获取价格	描述	数据表
IDT7052L20PFG8	IDT	获取价格	Four-Port SRAM, 2KX8, 20ns, CMOS, PQFP120, PLASTIC, TQFP-120
IDT7052L20PQF	ETC	获取价格	Quad-Port SRAM
IDT7052L20PQF9	IDT	获取价格	Four-Port SRAM, 2KX8, 20ns, CMOS, PQFP132, 0.950 X 0.950 INCH, 0.140 INCH HEIGHT, PLASTIC,
IDT7052L20PQFG	IDT	获取价格	Four-Port SRAM, 2KX8, 20ns, CMOS, PQFP132, 0.950 X 0.950 INCH, 0.140 INCH HEIGHT, GREEN, P
IDT7052L25G	IDT	获取价格	Four-Port SRAM, 2KX8, 25ns, CMOS, CPGA108, 1.210 X 1.210 INCH, 0.160 INCH HEIGHT, PGA-108
IDT7052L25GB	ETC	获取价格	Quad-Port SRAM
IDT7052L25GGB	IDT	获取价格	Four-Port SRAM, 2KX8, 25ns, CMOS, CPGA108, 1.210 X 1.210 INCH, 0.160 INCH HEIGHT, GREEN, C
IDT7052L25GM	IDT	获取价格	Application Specific SRAM, 2KX8, 25ns, CMOS, CPGA108
IDT7052L25PF	ETC	获取价格	Quad-Port SRAM
IDT7052L25PF8	IDT	获取价格	Four-Port SRAM, 2KX8, 25ns, CMOS, PQFP120, 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, TQFP-120

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