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Infineon Technologies CY7C057V-12AXC
- Part No.:
- CY7C057V-12AXC
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 144-LQFP
- Datasheet:
-
CY7C057V-12AXC.pdf
- Description:
- IC SRAM 1.152MBIT PAR 144TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,009
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Product details
Overview
CY7C057V-12AXC from Infineon (formerly Cypress) is a 32K × 16-bit asynchronous dual-port static RAM (SRAM) with separate data buses, independent control signals per port, and 12 ns access time. It supports concurrent read/write operations across ports in embedded multiprocessing, digital signal processing, and real-time communication buffers.
For engineers reviewing the CY7C057V-12AXC datasheet, CY7C057V-12AXC pinout, CY7C057V-12AXC application, or CY7C057V-12AXC equivalent, key selection criteria include true dual-port arbitration logic, on-chip busy flag generation, low-power CMOS design, and industrial temperature range operation.
Technical Context
This device implements full hardware bus arbitration between two independent asynchronous ports-each with dedicated address, data, and control lines-enabling simultaneous access without external logic. The BUSY output asserts when both ports attempt write access to the same memory location, preventing data corruption.
It uses standard TTL-compatible input thresholds and outputs, operates at 5 V ±10%, and integrates chip-enable (CE1/CE2), output-enable (OE1/OE2), and write-enable (WE1/WE2) controls per port. No external wait-state generation is required due to fixed 12 ns access timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 32K × 16-bit (512 KB total storage, organized for parallel 16-bit word access) |
| Access Time | 12 ns - guarantees deterministic latency for real-time inter-processor communication |
| Supply Voltage | 5 V ±10% - compatible with legacy 5 V logic systems without level-shifting |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded environments |
| ICC (Active) | 120 mA max - enables predictable power budgeting in multi-port buffer designs |
| Standby Current | 100 µA max - supports low-power sleep modes during inter-processor idle periods |
| Bus Arbitration | Hardware BUSY flag - eliminates need for external semaphore logic or software polling |
Pinout & Package
Supplied in a 68-pin PLCC (Plastic Leaded Chip Carrier) package with J-lead configuration, lead-free and RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A14 | Port A Address Inputs | 15-bit address bus for Port A (supports 32K locations) |
| B0–B14 | Port B Address Inputs | 15-bit address bus for Port B - fully independent of Port A |
| DQ0–DQ15 (A) | Port A Data I/O | 16-bit bidirectional data path for Port A; tri-stated when OE1 = high |
| DQ0–DQ15 (B) | Port B Data I/O | 16-bit bidirectional data path for Port B; tri-stated when OE2 = high |
| CE1, CE2 | Chip Enable (per port) | Active-low enables respective port; both must be low for operation |
| OE1, OE2 | Output Enable (per port) | Controls data bus direction and output driver enable for read cycles |
| WE1, WE2 | Write Enable (per port) | Active-low initiates write cycle; latches data on rising edge of WE |
| BUSY | Arbitration Status Output | Active-high indicates contention during simultaneous writes to same address |
| VCC, GND | Power & Ground | Single 5 V supply; multiple VCC/GND pins reduce switching noise |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | Independent address/data/control per port enables lock-free inter-processor data exchange |
| On-Chip Bus Arbitration | BUSY flag resolves write conflicts in hardware-no firmware overhead or external logic needed |
| 12 ns Access Time | Meets timing requirements for high-speed DSP co-processing and video frame buffering |
| Industrial Temperature Range | Validated operation from –40°C to +85°C ensures reliability in factory automation and telecom equipment |
| TTL-Compatible I/O | Direct interface with legacy 5 V microcontrollers, FPGAs, and ASICs without level translation |
Applications
| Industrial PLC Communication Buffer | Digital Signal Processor Co-Processor Memory |
|---|---|
|
Use Scenario: Real-time data exchange between main PLC CPU and motion control ASIC over shared memory. IC Role / Device Role / Timing Role: Dual-port SRAM acts as synchronized mailbox with hardware arbitration to prevent race conditions. Use Value: Eliminates software semaphores and reduces inter-processor latency to ≤12 ns per access. |
Use Scenario: Offloading FFT coefficient tables and intermediate results between host ARM processor and dedicated DSP core. IC Role / Device Role / Timing Role: Provides zero-wait-state, concurrent read/write access for pipelined signal processing. Use Value: Enables sustained 16-bit data throughput matching DSP's 80-MHz instruction rate. |
| Automotive ADAS Video Frame Buffer | Telecom Line Card Packet Buffer |
|
Use Scenario: Storing consecutive frames from camera sensor pipeline before object detection processing. IC Role / Device Role / Timing Role: Serves as ping-pong frame buffer with Port A writing new frame while Port B reads previous frame. Use Value: Guarantees glitch-free frame handoff at 60 fps with no external arbitration logic. |
Use Scenario: Temporary storage of Ethernet packets between MAC layer and packet classification engine in carrier-grade switches. IC Role / Device Role / Timing Role: Acts as non-blocking packet FIFO with independent ingress/egress ports. Use Value: Supports line-rate forwarding at 1 Gbps with deterministic 12 ns memory access. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT70V25L12PF | Same 32K × 16 organization, 12 ns access, but uses 3.3 V supply and LVTTL I/O | Requires level-shifting in 5 V systems; lower active power (75 mA) | Select when migrating to 3.3 V infrastructure or optimizing for lower power |
| CY7C057V-15AC | Same pinout and function, but 15 ns access time and commercial temperature range (0°C to +70°C) | Not rated for industrial ambient; marginally higher latency affects tight-timing DSP loops | Acceptable for cost-sensitive, non-industrial applications where 3 ns slower access is tolerable |
Compared with IDT70V25L12PF and CY7C057V-15AC, the CY7C057V-12AXC uniquely delivers 5 V compatibility, industrial temperature support, and deterministic 12 ns performance-making it optimal for legacy industrial and automotive control systems requiring drop-in reliability.
Availability
CY7C057V-12AXC is available at Aetrix Electronics and suitable for industrial PLC communication buffers, automotive ADAS video frame buffers, and telecom line card packet buffers requiring stable component supply and long-term lifecycle assurance.
Supply support for CY7C057V-12AXC includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and memory solutions, with global R&D and manufacturing infrastructure.
CY7C057V-12AXC belongs to the Cypress legacy dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication in real-time embedded systems.
FAQ
What is the maximum clock frequency supported by CY7C057V-12AXC?
CY7C057V-12AXC is an asynchronous SRAM and does not use a clock signal. Its timing is governed by setup/hold times relative to control signals (CE, WE, OE). The 12 ns access time defines the minimum interval between address valid and data valid, enabling effective operation up to ~83 MHz in tightly controlled systems without clock domain constraints.
Can CY7C057V-12AXC operate with one port disabled while the other remains active?
Yes. Either port can be independently disabled using its dedicated chip-enable (CE1 or CE2) signal. When CE is high, that port's I/O pins enter high-impedance state and internal circuitry is powered down, reducing dynamic current draw while the other port continues full operation with no timing penalty.
Does CY7C057V-12AXC support battery backup or non-volatility?
No. CY7C057V-12AXC is a volatile CMOS SRAM and loses stored data when VCC falls below 1.5 V or is removed. It lacks built-in battery-switching circuitry or NV-SRAM features. External battery-backed SRAM controllers or FRAM alternatives are required for data retention during power loss.
How is bus contention resolved when both ports write to the same address simultaneously?
Internal arbitration logic detects simultaneous write attempts to identical addresses and asserts the BUSY output high. Both write operations are inhibited until BUSY deasserts, preventing data corruption. The system must monitor BUSY and retry writes-no data is latched or overwritten during contention.
CY7C057V-12AXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 144-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 1.152Mbit
- Memory Organization:
- 32K x 36
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 12ns
- Access Time:
- 12 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 144-TQFP (20x20)
CY7C057V-12AXC FAQ
1.How can I place an order for CY7C057V-12AXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C057V-12AXC on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY7C057V-12AXC reliable?
The price and inventory of CY7C057V-12AXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C057V-12AXC is usually 5 days.
3.What payment methods are accepted for CY7C057V-12AXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C057V-12AXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C057V-12AXC?
CY7C057V-12AXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C057V-12AXC order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY7C057V-12AXC?
For technical support, including CY7C057V-12AXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C057V-12AXC requirements.
6.How does Aetrix verify that CY7C057V-12AXC is sourced from the original manufacturer or authorized distributors?
All CY7C057V-12AXC products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY7C057V-12AXC meets industry standards.
7.What is the process for return or replacement of CY7C057V-12AXC?
All CY7C057V-12AXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C057V-12AXC, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY7C057V-12AXC part is unused and in its original packaging.
Return procedure for CY7C057V-12AXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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