CY7C024-25JXCT

CY7C024-25JXCT Datasheet

CY7C024/0241 CY7C025/0251

Part	Datasheet
CY7C024-25JXCT	CY7C024-25JXCT (pdf)

Related Parts	Information
CY7C024-25JXC	CY7C024-25JXC

PDF Datasheet Preview
CY7C024/0241 CY7C025/0251 4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY Functional Description • 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 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. Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600 [+] Feedback CY7C024/0241 CY7C025/0251 Logic Block Diagram L OE L R/WR UBR LBR CER [3] I/O 8L I/O 15L [2] 7L [1] BUSYL CY7C025/0251 A12L A11L Pin Configurations R/W L SEM L INT L I/O CONTROL I/O CONTROL ADDRESS DECODER MEMORY ARRAY ADDRESS DECODER UB L LB L INTERRUPT SEMAPHORE ARBITRATION OE R UB R LB R I/O8R I/O15R[3] [2] 7R [1] BUSYR A12R CY7C025/0251 A11R R/W R SEM R INTR 84-Pin PLCC Top View I/O7L I/O6L I/O5L I/O4L I/O3L I/O2L GND I/O 1L I/O0L OEL V CC R/WL SEM L CEL UB L LB L NC[4] A11L A 10L A Ordering Information 4K x16 Dual-Port SRAM Speed ns 15 25 Ordering Code CY7C024-15AXC CY7C024-15JXC CY7C024-25AXC CY7C024-25JXC CY7C024-25AXI CY7C024-25JXI CY7C024-35AXC CY7C024-35JXC CY7C024-35AXI CY7C024-35JXI CY7C024-55AXC CY7C024-55JXC CY7C024-55AXI CY7C024-55JXI Package Name A100 J83 A100 J83 A100 J83 A100 J83 A100 J83 A100 J83 A100 J83 Package Type Operating Range 100-Pin Thin Quad Flat Pack Commercial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Commercial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Industrial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Commercial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Industrial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Commercial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Industrial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier Ordering Information 8K x 16 Dual-Port SRAM Speed ns Ordering Code CY7C025-15AXC CY7C025-15JXC CY7C025-15AXI Package Name A100 J83 A100 Package Type Operating Range 100-Pin Thin Quad Flat Pack Commercial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Industrial 100-Pin Lead Free Thin Quad Flat Pack Page 17 of 21 [+] Feedback CY7C024/0241 CY7C025/0251 Ordering Information 8K x 16 Dual-Port SRAM continued Speed ns 25 Ordering Code CY7C025-25AXC CY7C025-25JXC CY7C025-25AXI CY7C025-25JXI CY7C025-35AXC CY7C025-35JXC CY7C025-35AXI CY7C025-35JXI CY7C025-55AXC CY7C025-55JXC CY7C025-55AXI CY7C025-55JXI Package Name A100 J83 A100 J83 A100 J83 A100 J83 A100 J83 A100 J83 Package Type Operating Range 100-Pin Thin Quad Flat Pack Commercial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Industrial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Commercial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Industrial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Commercial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier 100-Pin Thin Quad Flat Pack Industrial 100-Pin Lead Free Thin Quad Flat Pack 84-Lead Plastic Leaded Chip Carrier 84-Lead Free Plastic Leaded Chip Carrier Ordering Information 4K x 18 Dual-Port SRAM Speed ns 15 Ordering Code CY7C0241-15AXC CY7C0241-15AXI CY7C0241-25AXC CY7C0241-25AXI CY7C0241-35AXC CY7C0241-35AXI CY7C0241-55AXC CY7C0241-55AXI Package Name A100 Package Type 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack Operating Range Commercial Industrial Commercial Industrial Commercial Industrial Commercial Industrial Page 18 of 21 [+] Feedback 8K x 18 Dual-Port SRAM Speed ns 15 25 Ordering Code CY7C0251-25AXC CY7C024/0241 CY7C025/0251 Package Name A100 Package Type 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack Operating Range Commercial Commercial Industrial Commercial Industrial Commercial Industrial Page 19 of 21 [+] Feedback CY7C024/0241 CY7C025/0251 Package Diagrams 100-Pin Lead Pb -Free Thin Plastic Quad Flat Pack TQFP A100 84-Lead Free Plastic Leaded Chip Carrier J83 51-85048-B 51-85006-A All product and company names mentioned in this document are trademarks of their respective holders. Page 20 of 21 Cypress Semiconductor Corporation, The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. [+] Feedback CY7C024/0241 CY7C025/0251 Document History Page Document Title CY7C024/0241, CY7C025/0251 4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with Sem, Int, Busy Document Number 38-06035 Orig. of ECN NO. Issue Date Change Description of Change 110177 09/29/01 SZV Change from Spec number 38-00255 to 38-06035 122286 12/27/02 RBI Power-up requirements added to Maximum Ratings Information 236754 See ECN YDT Removed cross information from features section 279132 See ECN RUY Added Lead Pb -Free packaging information Page 21 of 21 [+] Feedback

PDF Datasheet Preview

CY7C024/0241 CY7C025/0251
4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with SEM, INT, BUSY

Functional Description
• 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

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.

Cypress Semiconductor Corporation
• 3901 North First Street
• San Jose, CA 95134
• 408-943-2600
[+] Feedback

CY7C024/0241 CY7C025/0251

Logic Block Diagram

L OE L

R/WR UBR

LBR CER
[3] I/O 8L I/O 15L
[2] 7L
[1] BUSYL

CY7C025/0251 A12L

A11L

Pin Configurations

R/W L SEM L INT L

I/O CONTROL

I/O CONTROL

ADDRESS DECODER

MEMORY ARRAY

ADDRESS DECODER

UB L LB L

INTERRUPT SEMAPHORE ARBITRATION

OE R UB R LB R

I/O8R I/O15R[3]
[2] 7R
[1] BUSYR A12R CY7C025/0251

A11R

R/W R SEM R

INTR
84-Pin PLCC Top View

I/O7L I/O6L I/O5L I/O4L I/O3L I/O2L GND I/O 1L I/O0L OEL V CC R/WL SEM L CEL UB L LB L

NC[4]

A11L A 10L A
Ordering Information 4K x16 Dual-Port SRAM

Speed ns 15 25
Ordering Code CY7C024-15AXC CY7C024-15JXC CY7C024-25AXC CY7C024-25JXC CY7C024-25AXI CY7C024-25JXI CY7C024-35AXC CY7C024-35JXC CY7C024-35AXI CY7C024-35JXI CY7C024-55AXC CY7C024-55JXC CY7C024-55AXI CY7C024-55JXI

Package Name A100 J83 A100 J83 A100 J83 A100 J83 A100 J83 A100 J83 A100 J83

Package Type

Operating Range
100-Pin Thin Quad Flat Pack

Commercial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Commercial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Industrial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Commercial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Industrial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Commercial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Industrial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
Ordering Information 8K x 16 Dual-Port SRAM

Speed ns
Ordering Code CY7C025-15AXC CY7C025-15JXC CY7C025-15AXI

Package Name A100 J83 A100

Package Type

Operating Range
100-Pin Thin Quad Flat Pack

Commercial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Industrial
100-Pin Lead Free Thin Quad Flat Pack

Page 17 of 21 [+] Feedback

CY7C024/0241 CY7C025/0251
Ordering Information 8K x 16 Dual-Port SRAM continued

Speed ns 25
Ordering Code CY7C025-25AXC CY7C025-25JXC CY7C025-25AXI CY7C025-25JXI CY7C025-35AXC CY7C025-35JXC CY7C025-35AXI CY7C025-35JXI CY7C025-55AXC CY7C025-55JXC CY7C025-55AXI CY7C025-55JXI

Package Name A100 J83 A100 J83 A100 J83 A100 J83 A100 J83 A100 J83

Package Type

Operating Range
100-Pin Thin Quad Flat Pack

Commercial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Industrial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Commercial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Industrial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Commercial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
100-Pin Thin Quad Flat Pack

Industrial
100-Pin Lead Free Thin Quad Flat Pack
84-Lead Plastic Leaded Chip Carrier
84-Lead Free Plastic Leaded Chip Carrier
Ordering Information 4K x 18 Dual-Port SRAM

Speed ns 15
Ordering Code CY7C0241-15AXC CY7C0241-15AXI CY7C0241-25AXC CY7C0241-25AXI CY7C0241-35AXC CY7C0241-35AXI CY7C0241-55AXC CY7C0241-55AXI

Package Name A100

Package Type 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack

Operating Range

Commercial Industrial Commercial Industrial Commercial Industrial Commercial Industrial

Page 18 of 21
[+] Feedback
8K x 18 Dual-Port SRAM

Speed ns 15 25
Ordering Code CY7C0251-25AXC

CY7C024/0241 CY7C025/0251

Package Name A100

Package Type 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack 100-Pin Thin Quad Flat Pack 100-Pin Lead Free Thin Quad Flat Pack

Operating Range

Commercial

Commercial

Industrial

Commercial

Industrial

Commercial

Industrial

Page 19 of 21 [+] Feedback

CY7C024/0241 CY7C025/0251

Package Diagrams
100-Pin Lead Pb -Free Thin Plastic Quad Flat Pack TQFP A100
84-Lead Free Plastic Leaded Chip Carrier J83
51-85048-*B
51-85006-*A

All product and company names mentioned in this document are trademarks of their respective holders.

Page 20 of 21

Cypress Semiconductor Corporation, The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use
of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be
used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its
products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress
products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.
[+] Feedback

CY7C024/0241 CY7C025/0251

Document History Page

Document Title CY7C024/0241, CY7C025/0251 4K x 16/18 and 8K x 16/18 Dual-Port Static RAM with Sem, Int, Busy Document Number 38-06035

Orig. of ECN NO. Issue Date Change

Description of Change
110177 09/29/01

SZV Change from Spec number 38-00255 to 38-06035
122286 12/27/02

RBI Power-up requirements added to Maximum Ratings Information
236754 See ECN YDT Removed cross information from features section
279132 See ECN RUY Added Lead Pb -Free packaging information

Page 21 of 21 [+] Feedback

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived CY7C024-25JXCT Datasheet file may be downloaded here without warranties.

Datasheet ID: CY7C024-25JXCT 507850