Cypress Semiconductor Corp CY7C141-55JCT

Mfr. Part

CY7C141-55JCT

Manufacturer

Cypress Semiconductor

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Detailed Description

Dual-port asynchronous SRAM, 8 Kbit capacity arranged as 1K x 8. Fast 55 ns access and 55 ns write cycle. 5 V operation (4.5–5.5 V). Parallel interface. Commercial temperature range 0°C to 70°C. Surface-mount 52-PLCC package with J-leads. Ideal for shared-memory and inter-processor communication.

Key Features

Dual-port architecture for two independent, simultaneous accesses

Asynchronous operation for simple timing and easy integration

8 Kbit total, organized as 1K x 8

55 ns access time, 55 ns write cycle

5 V supply, wide tolerance 4.5–5.5 V

Parallel interface for straightforward bus connection

Commercial temp rating 0°C to 70°C (TA)

Surface-mount 52-PLCC (J-lead) package, 19.13 x 19.13 mm

Volatile memory (SRAM), no refresh required

Base product family CY7C141 for compatible variants

Key Advantages

Enables high-speed, low-latency data sharing between two processors or controllers

Simplifies system design with separate ports and control signals to reduce bus contention

Robust 5 V operation suits legacy and industrial systems

Predictable timing (asynchronous) minimizes the need for complex timing control

Compact PLCC footprint saves board space while maintaining serviceability

Mature, widely used family with proven reliability

Packaging

Type: 52-PLCC, J-lead, surface-mount

Material: Molded plastic PLCC body with J-formed leads

Size: 19.13 mm x 19.13 mm nominal body outline

Pin configuration: 52 pins supporting two complete ports (address, data, and control per port); consult datasheet for exact pin map

Thermal characteristics: Designed for commercial 0–70°C ambient; typical PLCC thermal performance; ensure adequate airflow and spacing

Electrical properties: 4.5–5.5 V supply; CMOS/TTL-compatible I/O levels; 55 ns access/write timing; asynchronous control signals

Supplier device package: 52-PLCC (19.13 x 19.13)

Shipping: Bulk packaging for production use

RoHS: Not applicable (confirm plating/finish requirements when ordering)

Lifecycle

Status: Mature 5 V dual-port SRAM; availability can vary by speed grade and package

Not known to be at immediate risk of discontinuation, but some variants may be NRND or limited in supply; Y-IC currently lists available stock (12,564 units)

Equivalent or alternative models (verify pinout and timing before substitution):

- Same family, different speed grades: CY7C141-45JCT, CY7C141-35JCT (faster access)

- Larger density in same family: CY7C142 (2K x 8), CY7C143 (4K x 8) for capacity upgrades

- Functionally similar dual-port SRAM from Renesas/IDT: IDT7130SA (1K x 8, dual-port, 5 V), IDT7140SA (2K x 8, dual-port, 5 V) — not guaranteed pin-compatible

- 3.3 V alternatives (different supply/possibly different packages): IDT70V05 (1K x 8 dual-port, 3.3 V) — check system voltage and pin map

If you need drop-in pin-compatible replacements or confirmed lifecycle status, contact our sales team via the Y-IC website for the latest options and guidance

Key Application Areas

Multi-processor communication and arbitration

Shared memory buffers between MCU/FPGA/DSP pairs

Networking and telecom systems (packet buffers, control planes)

Industrial control, robotics, motion systems

Test and measurement equipment

Graphics and imaging pipelines needing fast shared scratchpad

Embedded systems requiring deterministic inter-core data exchange

Datasheet

Y-IC hosts the most authoritative datasheet for CY7C141-55JCT on our product page. Download it now to get complete pinouts, timing diagrams, electrical specs, and application guidance.

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