Datasheet > CY7C1471BV25_11

CY7C1471BV25_11

更新时间： 2024-11-16 09:44:43

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		静态存储器
页数	文件大小	规格书
33页	1024K
描述
72-Mbit (2 M x 36/4 M x 18/1 M x 72) Flow-Through SRAM with NoBL Architecture

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CY7C1471BV25_11 数据手册

CY7C1471BV25

CY7C1473BV25, CY7C1475BV25

72-Mbit (2 M × 36/4 M × 18/1 M × 72)

Flow-Through SRAM with NoBL™ Architecture

72-Mbit (2

M × 36/4 M × 18/1 M × 72) Flow-Through SRAM with NoBL™ Architecture

Features

Functional Description

■ No Bus Latency™ (NoBL™) architecture eliminates dead

cycles between write and read cycles

The CY7C1471BV25, CY7C1473BV25, and CY7C1475BV25

are 2.5 V, 2 M × 36/4 M × 18/1 M × 72 synchronous flow through

burst SRAMs designed specifically to support unlimited true

back-to-back read or write operations without the insertion of

wait states. The CY7C1471BV25, CY7C1473BV25, and

CY7C1475BV25 are equipped with the advanced No Bus

Latency (NoBL) logic required to enable consecutive read or

write operations with data transferred on every clock cycle. This

feature dramatically improves the throughput of data through the

SRAM, especially in systems that require frequent write-read

transitions.

■ Supports up to 133 MHz bus operations with zero wait states

■ Data transfers on every clock

■ Pin compatible and functionally equivalent to ZBT™ devices

■ Internally self timed output buffer control to eliminate the need

to use OE

■ Registered inputs for flow through operation

■ Byte Write capability

All synchronous inputs pass through input registers controlled by

the rising edge of the clock. The clock input is qualified by the

Clock Enable (CEN) signal, which when deasserted suspends

operation and extends the previous clock cycle. Maximum

access delay from the clock rise is 6.5 ns (133-MHz device).

■ 2.5 V IO supply (V_DDQ

)

■ Fast clock-to-output times

❐ 6.5 ns (for 133-MHz device)

Write operations are controlled by two or four Byte Write Select

(BW_X) and a Write Enable (WE) input. All writes are conducted

with on-chip synchronous self timed write circuitry.

■ Clock Enable (CEN) pin to enable clock and suspend operation

■ Synchronous self timed writes

Three synchronous Chip Enables (CE₁, CE₂, CE₃) and an

asynchronous Output Enable (OE) provide easy bank selection

and output tri-state control. To avoid bus contention, the output

drivers are synchronously tri-stated during the data portion of a

write sequence.

■ Asynchronous Output Enable (OE)

■ CY7C1471BV25,

CY7C1473BV25

available

JEDEC-standard Pb-free 100-pin TQFP, Pb-free and

non-Pb-free 165-ball FBGA package. CY7C1475BV25

available in Pb-free and non-Pb-free 209-ball FBGA package.

For best practice recommendations, refer to the Cypress

application note AN1064, SRAM System Guidelines.

■ Three Chip Enables (CE₁, CE₂, CE₃) for simple depth

expansion.

■ Automatic power down feature available using ZZ mode or CE

deselect.

■ IEEE 1149.1 JTAG Boundary Scan compatible

■ Burst Capability - linear or interleaved burst order

■ Low standby power

Selection Guide

Description

Maximum Access Time

133 MHz

6.5

100 MHz

8.5

Unit

Maximum Operating Current

305

275

Maximum CMOS Standby Current

120

Cypress Semiconductor Corporation

Document Number: 001-15013 Rev. *H

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Revised May 13, 2011

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与CY7C1471BV25_11相关器件

型号	品牌	获取价格	描述	数据表
CY7C1471BV25-100AXC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1471BV25-100AXI	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1471BV25-100BZC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1471BV25-100BZI	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1471BV25-100BZXC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1471BV25-100BZXI	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1471BV25-133AXC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1471BV25-133AXI	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1471BV25-133AXI	INFINEON	获取价格	Synchronous SRAM
CY7C1471BV25-133BZC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug

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