Datasheet > CY7C0851AV

CY7C0851AV

更新时间： 2024-11-07 04:10:19

品牌	Logo	应用领域
赛普拉斯 - CYPRESS		/
页数	文件大小	规格书
31页	830K
描述
FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM

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CY7C0851AV 数据手册

CY7C093794V CY7C093894V CY7C09289V CY7C09369V CY7C09379V CY7C09389V3.3V 64K/128K

Synchronous Dual-Port RAM

x 36 and 128K/256K x 18

CY7C0850AV/CY7C0851AV

CY7C0852AV/CY7C0853AV

FLEx36 3.3V 32K/64K/128K/256K x 36

Synchronous Dual-Port RAM

Functional Description

Features

• True dual-ported memory cells that allow simultaneous

The FLEx36™ family includes 1M, 2M, 4M and 9M pipelined,

synchronous, true dual-port static RAMs that are high-speed,

low-power 3.3V CMOS. Two ports are provided, permitting

independent, simultaneous access to any location in memory.

The result of writing to the same location by more than one port

at the same time is undefined. Registers on control, address,

and data lines allow for minimal set-up and hold time.

During a Read operation, data is registered for decreased

cycle time. Each port contains a burst counter on the input

address register. After externally loading the counter with the

initial address, the counter will increment the address inter-

nally (more details to follow). The internal Write pulse width is

independent of the duration of the R/W input signal. The

internal Write pulse is self-timed to allow the shortest possible

cycle times.

A HIGH on CE0 or LOW on CE1 for one clock cycle will power

down the internal circuitry to reduce the static power

consumption. One cycle with chip enables asserted is required

to reactivate the outputs.

Additional features include: readback of burst-counter internal

address value on address lines, counter-mask registers to

control the counter wrap-around, counter interrupt (CNTINT)

flags, readback of mask register value on address lines,

retransmit functionality, interrupt flags for message passing,

JTAG for boundary scan, and asynchronous Master Reset

(MRST).

access of the same memory location

• Synchronous pipelined operation

• Organization of 1-Mbit, 2-Mbit, 4-Mbit and 9-Mbit

devices

• Pipelined output mode allows fast operation

• 0.18-micron CMOS for optimum speed and power

• High-speed clock to data access

• 3.3V low power

— Active as low as 225 mA (typ)

— Standby as low as 55 mA (typ)

• Mailbox function for message passing

• Global master reset

• Separate byte enables on both ports

• Commercial and industrial temperature ranges

• IEEE 1149.1-compatible JTAG boundary scan

• 172-ball FBGA (1 mm pitch) (15 mm × 15 mm)

• 176-pin TQFP (24 mm × 24 mm × 1.4 mm)

• Counter wrap around control

— Internal mask register controls counter wrap-around

— Counter-interrupt flags to indicate wrap-around

— Memory block retransmit operation

• Counter readback on address lines

• Mask register readback on address lines

The CY7C0853A device in this family has limited features.

Please see See “Address Counter and Mask Register

Operations^[10]” on page 8. for details.

• Dual Chip Enables on both ports for easy depth

expansion

Table 1. Product Selection Guide

1-Mbit

2-Mbit

4-Mbit

9-Mbit

Density

(32K x 36)

CY7C0850AV

167

(64K x 36)

(128K x 36)

(256K x 36)

Part Number

Max. Speed (MHz)

CY7C0851AV

CY7C0852AV

CY7C0853AV

167

4.0

225

167

4.0

225

133

4.7

270

Max. Access Time - Clock to Data (ns)

Typical operating current (mA)

Package

4.0

225

176TQFP

172FBGA

Cypress Semiconductor Corporation

•

198 Champion Court

•

San Jose, CA 95134-1709

•

408-943-2600

Document #: 38-06070 Rev. *G

Revised August 15, 2005

12 3 4 5 6 7...31

中文翻译

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与CY7C0851AV相关器件

型号	品牌	获取价格	描述	数据表
CY7C0851AV-133AC	CYPRESS	获取价格	FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM
CY7C0851AV-133AI	CYPRESS	获取价格	FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM
CY7C0851AV-133AXC	CYPRESS	获取价格	Dual-Port SRAM, 64KX36, 4ns, CMOS, PQFP176, 24 X 24 MM, 1.40 MM HEIGHT, LEAD FREE, TQFP-17
CY7C0851AV-133AXI	CYPRESS	获取价格	FLEx36â¢ 3.3 V 32 K / 64 K / 128 K / 256 K Ã
CY7C0851AV-133BBC	CYPRESS	获取价格	FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM
CY7C0851AV-133BBI	CYPRESS	获取价格	FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM
CY7C0851AV-167AC	CYPRESS	获取价格	FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM
CY7C0851AV-167BBC	CYPRESS	获取价格	FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM
CY7C0851AV-167BBXC	CYPRESS	获取价格	FLEx36â¢ 3.3 V 32 K / 64 K / 128 K / 256 K Ã
CY7C0851V	CYPRESS	获取价格	FLEx36TM 3.3V 32K/64K/128K/256K x 36 Synchronous Dual-Port RAM

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