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CY7C025-15AXC - Cypress Semiconductor - 4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY

CY7C025-15AXC - Cypress Semiconductor - 4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY

  • CY7C025-15AXC - Cypress Semiconductor - 4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
CY7C025-15AXC - Cypress Semiconductor - 4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY
Product Details:
Place of Origin: PHILIPPINE
Brand Name: Cypress Semiconductor
Certification: Lead free / RoHS Compliant
Model Number: CY7C025-15AXC
Payment & Shipping Terms:
Minimum Order Quantity: 50
Price: Contact for Sample
Packaging Details: Contact for Sample
Delivery Time: Within 3days
Payment Terms: T/T in advance, Paypal, Western Union
Supply Ability: 5000
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Detailed Product Description
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4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY

 

 

Description:

 

The CY7C024/0241 and CY7C025/0251 are low-power CMOS 4K x 16/18 and 8K x 16/18 dual-port static RAMs. Various arbitration schemes are included on the CY7C024/0241 and CY7C025/0251 to handle situations when multiple processors access the same piece of data. Two ports are provided, permitting independent, asynchronous access for reads and writes to any location in memory. The CY7C024/

0241 and CY7C025/0251 can be utilized as standalone 16-/18-bit dual-port static RAMs or multiple devices can be combined in order to function as a 32-/36-bit or wider master/slave dual-port static RAM. An M/S pin is provided for implementing 32-/36-bit or wider memory applications without the need for separate master and slave devices or additional discrete logic. Application areas include interprocessor/multiprocessor designs, communications status buffering, and dual-port video/graphics memory.

Each port has independent control pins: Chip Enable (CE),

Read or Write Enable (R/W), and Output Enable (OE). Two flags are provided on each port (BUSY and INT). BUSY signals that the port is trying to access the same location currently being accessed by the other port. The Interrupt Flag (INT) permits communication between ports or systems by means of a mail box. The semaphores are used to pass a flag, or token, from one port to the other to indicate that a shared resource is in use. The semaphore logic is comprised of eight shared latches. Only one side can control the latch (semaphore) at any time. Control of a semaphore indicates that a shared resource is in use. An automatic power-down feature is controlled independently on each port by a chip select (CE) pin.

The CY7C024/0241 and CY7C025/0251 are available in 84-pin Lead (Pb)-free PLCCs, 84-pin PLCCs (CY7C024 and CY7C025 only), 100-pin Lead (Pb)-free Thin Quad Plastic Flatplack (TQFP) and 100-pin Thin Quad Plastic Flatpack.

 

 

Applications:

 

• True Dual-Ported memory cells which allow simultaneous reads of the same memory location

• 4K x 16 organization (CY7C024)

• 4K x 18 organization (CY7C0241)

• 8K x 16 organization (CY7C025)

• 8K x 18 organization (CY7C0251)

• 0.65-micron CMOS for optimum speed/power

• High-speed access: 15 ns

• Low operating power: ICC = 150 mA (typ.)

• Fully asynchronous operation

• Automatic power-down

• Expandable data bus to 32/36 bits or more using

Master/Slave chip select when using more than one device

• On-chip arbitration logic

• Semaphores included to permit software handshaking between ports

• INT flag for port-to-port communication

• Separate upper-byte and lower-byte control

• Pin select for Master or Slave

• Available in 84-pin Lead (Pb)-free PLCC, 84-pin PLCC,

100-pin Lead (Pb)-free TQFP, and 100-pin TQFP

 

 

Specifications:

 

Datasheets

CY7C024(A)/0241, CY7C025/0251

Product Photos

100-TQFP 14x14 Pkg

Standard Package

90

Category

Integrated Circuits (ICs)

Family

Memory

Series

-

Packaging

Tray

Format - Memory

RAM

Memory Type

SRAM - Dual Port, Asynchronous

Memory Size

128K (8K x 16)

Speed

15ns

Interface

Parallel

Voltage - Supply

4.5 V ~ 5.5 V

Operating Temperature

0°C ~ 70°C

Package / Case

100-LQFP

Supplier Device Package

100-TQFP (14x14)

 

 

Competitive Advantage:

 

Warranty :180 days !
Free shipping: Order over $1000 win a free shipment fee
(goods weight below 3Kg) ,during 20130901-20130930 .


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