Cypress Semiconductor Corp CY7C144AV-25JC

Mfr. Part

CY7C144AV-25JC

Manufacturer

Cypress Semiconductor

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Detailed Description

64 Kbit dual-port asynchronous SRAM organized as 8K x 8. Parallel interface with separate buses per port for true concurrent access. 25 ns access and write cycle. Operates at 3.0 to 3.6 V (3.3 V nominal). Commercial temperature 0 to 70°C. 68-PLCC J-lead surface-mount package, bulk shipment. Volatile memory for high-speed shared-memory applications.

Key Features

64 Kbit capacity, 8K x 8 organization

Dual-port asynchronous SRAM with separate Address, Data, and Control per port

Parallel interface, byte-wide per port

25 ns access time, 25 ns write cycle

3.0 to 3.6 V supply

Operating temperature 0 to 70°C (TA)

Surface-mount 68-PLCC J-lead package, 24.23 mm x 24.23 mm body

Technology SRAM Dual Port, Asynchronous

Memory Type Volatile, Memory Format SRAM

RoHS non-compliant legacy device

Base product number CY7C144

Package Bulk

Quantity currently available at Y-IC 173 units

Key Advantages

Enables two processors or controllers to access the same memory at the same time

Low latency 25 ns for fast inter-processor communication

Simple, standard parallel bus interface eases integration

3.3 V operation helps reduce power versus older 5 V devices

Proven Cypress dual-port SRAM family with robust arbitration for conflict avoidance

68-PLCC footprint supports maintenance and life-extension of legacy designs

Packaging

Type: PLCC (Leaded Chip Carrier) with J-leads, 68 pins

Material: Molded plastic body, legacy lead finish. RoHS non-compliant

Size: 68-PLCC, approx. 24.23 mm x 24.23 mm body, standard height

Pin configuration: 68 peripheral J-leads. Separate address, data, and control pins for each port. Dedicated VCC and GND pins. Byte-wide data bus per port

Mounting: Surface mount on standard 68-PLCC pads

Thermal characteristics: Rated for 0 to 70°C ambient. Use normal PCB copper for heat spreading and maintain airflow in dense boards. For precise thermal resistance and derating, see the datasheet

Electrical properties: 3.0 to 3.6 V supply (3.3 V typical). 25 ns access, 25 ns write cycle. Asynchronous operation. Parallel interface. Volatile SRAM

Lifecycle

Status: Legacy part and RoHS non-compliant. Many PLCC dual-port SRAMs from Cypress are NRND or obsolete. Availability may be limited. Check current status with Y-IC

Potential equivalents or alternatives

- Same family speed grades and package variants: CY7C144AV-20JC, CY7C144AV-15JC, CY7C144AV-12JC

- Temperature variants in PLCC: CY7C144AV-25JI or CY7C144AV-25JXI (industrial temp)

- Related Cypress/Infineon family members: CY7C144A series with similar organization and timing

- Cross-brand functional alternatives exist in 8K x 8 dual-port SRAM at 3.3 V, but pinouts and timing differ. Treat these as redesign options, not drop-in

If you need verified drop-in replacements or detailed cross-reference, contact our sales team through the Y-IC website for the latest guidance and availability

Key Application Areas

Shared memory between two CPUs or microcontrollers

Inter-processor mailboxes and message buffers

Networking and telecom systems needing dual-port buffers

Industrial control, robotics, motion control

Test and measurement instruments

Imaging pipelines in printers and copiers

Storage and I/O controllers

Service and maintenance of legacy equipment using 68-PLCC dual-port SRAMs

Datasheet

Y-IC provides the most authoritative datasheet and technical data for CY7C144AV-25JC. Download the datasheet from this page for complete pinouts, timing waveforms, DC and AC specs, arbitration behavior, and layout recommendations

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