Datasheet > 存储 > SRAM> CY7C1473V25-133BZXC

CY7C1473V25-133BZXC

更新时间： 2024-09-16 22:36:31

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
30页	373K
描述
72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Through SRAM with NoBL Architecture

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CY7C1471V25

CY7C1473V25

CY7C1475V25

PRELIMINARY

72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Through SRAM

with NoBL™ Architecture

Features

Functional Description^[1]

• No Bus Latency™ (NoBL™) architecture eliminates

dead cycles between write and read cycles.

The CY7C1471V25, CY7C1473V25 and CY7C1475V25 are

2.5V, 2M x 36/4M x 18/1M x 72 Synchronous Flow-through

Burst SRAMs designed specifically to support unlimited true

back-to-back Read/Write operations without the insertion of

wait states. The CY7C1471V25, CY7C1473V25 and

CY7C1475V25 are equipped with the advanced No Bus

Latency (NoBL) logic required to enable consecutive

Read/Write operations with data being 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.

• Can support up to 133-MHz bus operations with zero

wait states

• Data is transferred 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).

• 2.5V/1.8V I/O power supply

• Fast clock-to-output times

— 6.5 ns (for 133-MHz device)

— 8.5 ns (for 100-MHz device)

Write operations are controlled by the 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

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

asynchronous Output Enable (OE) provide for easy bank

selection and output tri-state control. In order to avoid bus

contention, the output drivers are synchronously tri-stated

during the data portion of a write sequence.

• Synchronous self-timed writes

• Asynchronous Output Enable

• Offered in JEDEC-standard lead-free 100 TQFP, and

165-ball fBGA packages for CY7C1471V25 and

CY7C1473V25. 209-ball fBGA package for

CY7C1475V25.

• Three chip enables for simple depth expansion.

• Automatic Power-down feature available using ZZ

mode or CE deselect.

• JTAG boundary scan for BGA and fBGA packages

• Burst Capability—linear or interleaved burst order

• Low standby power

Selection Guide

133 MHz

6.5

100 MHz

8.5

Unit

Maximum Access Time

Maximum Operating Current

305

275

Maximum CMOS Standby Current

120

Note:

1. For best-practices recommendations, please refer to the Cypress application note System Design Guidelines on www.cypress.com.

Cypress Semiconductor Corporation

Document #: 38-05287 Rev. *E

•

3901 North First Street

•

San Jose, CA 95134

•

408-943-2600

Revised December 5, 2004

12 3 4 5 6 7...30

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与CY7C1473V25-133BZXC相关器件

型号	品牌	获取价格	描述	数据表
CY7C1473V25-133BZXI	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1473V25-150BZC	CYPRESS	获取价格	ZBT SRAM, 4MX18, 5.5ns, CMOS, PBGA165, 15 X 17 MM, 1.20 MM HEIGHT, FBGA-165
CY7C1473V33	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Through SRAM with NoBL Architecture
CY7C1473V33-100AXC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Through SRAM with NoBL Architecture
CY7C1473V33-100AXI	CYPRESS	获取价格	ZBT SRAM, 4MX18, 8.5ns, CMOS, PQFP100, 14 X 20 MM, 1.40 MM HEIGHT, LEAD FREE, PLASTIC, TQF
CY7C1473V33-100BZC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Through SRAM with NoBL Architecture
CY7C1473V33-100BZXC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Through SRAM with NoBL Architecture
CY7C1473V33-117AXC	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1473V33-117AXI	CYPRESS	获取价格	72-Mbit (2M x 36/4M x 18/1M x 72) Flow-Throug
CY7C1473V33-117BGC	CYPRESS	获取价格	暂无描述

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