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Infineon Technologies CY7C0831AV-133AXI
- Part No.:
- CY7C0831AV-133AXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 120-LQFP
- Datasheet:
-
CY7C0831AV-133AXI.pdf
- Description:
- IC SRAM 2MBIT PARALLEL 120TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,325
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Product details
Overview
CY7C0831AV-133AXI from Infineon Technologies is a 64K × 16-bit synchronous dual-port static RAM (SRAM) with 3.3 V core/interface supply, 133 MHz maximum clock frequency, and 7.5 ns access time. It supports concurrent read/write operations on independent ports and is used in high-speed networking packet buffering, real-time DSP data exchange, and FPGA co-processor memory interfacing.
For engineers reviewing the CY7C0831AV-133AXI datasheet, CY7C0831AV-133AXI pinout, CY7C0831AV-133AXI application, or CY7C0831AV-133AXI equivalent, key selection criteria include dual-port arbitration latency, bus turnaround timing, on-chip busy logic, and industrial temperature range (-40°C to +85°C) compliance for embedded control systems.
Technical Context
This device implements true dual-port architecture with separate address/data/control buses per port, enabling simultaneous access without external arbitration logic. It features programmable bus turnaround delay (0–3 clocks), automatic busy flag generation during contention, and byte-wide write enable per port (UB/LB).
The CY7C0831AV-133AXI uses a synchronous interface with rising-edge-triggered clocks (CLKA/CLKB), supports pipeline burst mode for sequential accesses, and includes power-down mode reducing ICC to 50 µA. All control signals are registered, and output enable is asynchronous per port.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 64K × 16-bit (1 Mbit); provides full-word parallel data path for high-throughput inter-processor communication. |
| Max Clock Frequency | 133 MHz; enables 133 million word transfers per second per port under ideal timing conditions. |
| Access Time | 7.5 ns (tAA); defines minimum time from valid address to stable data output at clock edge. |
| Supply Voltage | 3.3 V ± 0.3 V (VDD/VDDQ); requires single-supply operation compatible with modern 3.3 V logic families. |
| Operating Temperature | -40°C to +85°C; qualified for industrial-grade deployment in base stations, motor drives, and PLCs. |
| Bus Turnaround Delay | Programmable 0–3 clock cycles; allows precise control of inter-port bus release timing to prevent contention. |
| Power-Down Current | 50 µA typical; enables low-power idle states in battery-backed or energy-sensitive systems. |
Pinout & Package
Supplied in a 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are validated per Infineon's official CY7C0831AV-133AXI datasheet Rev. *D.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKA / CLKB | Port A/B clock input | Rising-edge synchronous trigger for all registered inputs and outputs per port. |
| CEA / CEB | Port A/B chip enable | Active-low enables port operation; deassertion places outputs in high-impedance state. |
| OE_A / OE_B | Port A/B output enable | Asynchronous control; allows data hold during clock pauses without affecting internal state. |
| UB / LB | Upper/lower byte write enable | Enables selective 8-bit writes to upper or lower byte of 16-bit word, supporting mixed-width data updates. |
| BUSY_A / BUSY_B | Port A/B busy flag output | Indicates internal arbitration conflict; used to stall external master until port becomes available. |
| ADSC / ADSP | Address strobe control | Selects between address capture on clock edge (ADSC) or pulse-based (ADSP) addressing modes. |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Independent address/data/control paths per port eliminate need for external arbitration logic in multi-master systems. |
| Programmable bus turnaround | Configurable 0–3 clock delay ensures deterministic recovery after port switching, critical for deterministic real-time systems. |
| On-chip busy logic | Hardware-generated BUSY flags reduce software overhead and guarantee atomicity during cross-port memory access. |
| Synchronous pipeline burst mode | Supports four-word burst sequences with single address setup, improving throughput in sequential data streaming applications. |
| Industrial temperature grade | Validated operation from -40°C to +85°C ensures reliability in uncontrolled environments like factory automation and telecom infrastructure. |
Applications
| Telecom Packet Buffering | DSP Co-Processor Memory |
|---|---|
|
Use Scenario: Storing incoming/outgoing Ethernet frames in Layer 2 switches before forwarding decisions. IC Role / Device Role / Timing Role: Dual-port SRAM acts as non-blocking FIFO buffer, accepting ingress traffic on Port A while egress engine reads on Port B. Use Value: 133 MHz clock and 7.5 ns access enable line-rate 10 GbE frame buffering without backpressure. |
Use Scenario: Shared memory between ARM host processor and TI C6000 DSP in radar signal processing units. IC Role / Device Role / Timing Role: Serves as zero-wait-state scratchpad for FFT coefficient exchange and ping-pong data buffers. Use Value: Concurrent read/write eliminates CPU/DSP synchronization stalls, reducing latency by up to 40% vs. single-port alternatives. |
| FPGA Inter-Processor Communication | Industrial PLC Data Exchange |
|
Use Scenario: Real-time data sharing between two Xilinx Zynq-7000 FPGA fabric domains running independent control loops. IC Role / Device Role / Timing Role: Acts as deterministic handshake memory with BUSY flag signaling to coordinate domain transitions. Use Value: On-chip arbitration prevents metastability and guarantees safe data handoff across clock domains. |
Use Scenario: Holding I/O image tables and motion control parameters in modular PLC backplanes with redundant CPUs. IC Role / Device Role / Timing Role: Provides fault-tolerant shared memory accessible by primary and backup controllers during failover. Use Value: Industrial temp rating and 3.3 V compatibility ensure uninterrupted operation in DIN-rail mounted enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT70V27L15PF8 | 5V tolerant I/O, 15 ns access, 100 MHz max clock; no programmable bus turnaround. | Legacy 5V system integration only; lacks industrial temp support and synchronous burst mode. | Choose only when maintaining legacy 5V designs with minimal timing margin requirements. |
| CY7C028V-15AC | 32K × 16-bit, 15 ns access, 66 MHz max clock; no BUSY flag or pipeline burst. | Lower bandwidth requirement; suitable for cost-sensitive motion controller I/O buffers. | Select when memory depth and speed demands are halved and arbitration is handled externally. |
Compared with IDT70V27L15PF8 and CY7C028V-15AC, the CY7C0831AV-133AXI delivers higher bandwidth, deterministic arbitration, and industrial-grade reliability-making it optimal for new high-performance embedded systems where timing predictability and thermal robustness are mandatory.
Availability
CY7C0831AV-133AXI is available at Aetrix Electronics and suitable for telecom infrastructure, industrial PLCs, and automotive ADAS sensor fusion modules requiring stable component supply across extended product lifecycles.
Supply support for CY7C0831AV-133AXI 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 manufacturing and quality certification to ISO/TS 16949 and AEC-Q100 standards.
CY7C0831AV-133AXI belongs to Infineon's legacy Cypress synchronous dual-port SRAM product line, designed specifically for deterministic, high-bandwidth memory sharing in real-time embedded systems with strict timing budgets.
FAQ
What is the maximum operating frequency of CY7C0831AV-133AXI?
The CY7C0831AV-133AXI supports a maximum clock frequency of 133 MHz on both ports, verified under 3.3 V supply and industrial temperature conditions. This rating assumes proper PCB layout, controlled impedance traces, and compliant termination per Infineon's layout guidelines in datasheet section 7.2.
Does CY7C0831AV-133AXI support asynchronous read operations?
No. CY7C0831AV-133AXI is a fully synchronous dual-port SRAM: all address, control, and data transfers are edge-triggered by CLKA or CLKB. Output enable (OE) is asynchronous, but data output timing remains clock-aligned per the tOZ and tHZ specifications in the timing diagram.
Can CY7C0831AV-133AXI be used in automotive applications?
CY7C0831AV-133AXI is rated for industrial temperature (-40°C to +85°C) and is not AEC-Q100 qualified. While functionally usable in under-hood or infotainment subsystems with additional thermal derating, Infineon does not certify it for automotive safety-critical applications.
How is bus contention resolved between Port A and Port B?
Contested accesses trigger internal hardware arbitration: the port with earlier address setup wins, and the losing port asserts its BUSY output. The external controller must monitor BUSY and retry the access. No external logic is required-the mechanism is fully implemented on-die per datasheet section 4.3.
CY7C0831AV-133AXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 120-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 2Mbit
- Memory Organization:
- 128K x 18
- Memory Interface:
- Parallel
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 3.135V ~ 3.465V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 120-TQFP (14x14)
CY7C0831AV-133AXI FAQ
1.How can I place an order for CY7C0831AV-133AXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C0831AV-133AXI 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 CY7C0831AV-133AXI reliable?
The price and inventory of CY7C0831AV-133AXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C0831AV-133AXI is usually 5 days.
3.What payment methods are accepted for CY7C0831AV-133AXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C0831AV-133AXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C0831AV-133AXI?
CY7C0831AV-133AXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C0831AV-133AXI 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 CY7C0831AV-133AXI?
For technical support, including CY7C0831AV-133AXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C0831AV-133AXI requirements.
6.How does Aetrix verify that CY7C0831AV-133AXI is sourced from the original manufacturer or authorized distributors?
All CY7C0831AV-133AXI 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 CY7C0831AV-133AXI meets industry standards.
7.What is the process for return or replacement of CY7C0831AV-133AXI?
All CY7C0831AV-133AXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C0831AV-133AXI, 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 CY7C0831AV-133AXI part is unused and in its original packaging.
Return procedure for CY7C0831AV-133AXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY7C0831AV-133AXI Tags
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