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Infineon Technologies CY7C09269V-12AXC
- Part No.:
- CY7C09269V-12AXC
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
CY7C09269V-12AXC.pdf
- Description:
- IC SRAM 256KBIT 12NS 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:641
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Product details
Overview
CY7C09269V-12AXC from Infineon Technologies is a 256K × 18-bit synchronous dual-port static RAM (SRAM) with 3.3 V core voltage, 12 ns access time, and flow-through output architecture. It supports independent concurrent read/write operations on two ports, enabling high-bandwidth interprocessor communication in real-time embedded systems such as industrial motion controllers and avionics data buffers.
For engineers reviewing the CY7C09269V-12AXC datasheet, CY7C09269V-12AXC pinout, CY7C09269V-12AXC application, or CY7C09269V-12AXC equivalent, key selection criteria include dual-port timing independence, 18-bit data width compatibility with TMS320C6000 DSP buses, and support for byte-wide write masking without external logic.
Technical Context
This SRAM implements true dual-port architecture with separate address, data, and control lines per port-no arbitration logic required. Each port features independent chip select (CE), output enable (OE), and write enable (WE) signals, allowing asynchronous operation between ports at up to 83 MHz clock rate.
It uses synchronous interface timing with registered address and control inputs, supporting burst-mode reads and pipelined writes. The device includes power-down mode (standby current < 50 µA) and programmable output drive strength (12 mA/24 mA) for signal integrity optimization across PCB trace lengths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 256K × 18-bit (4.5 Mbit); matches 16-bit DSP + status word bus width in motor control FPGAs |
| Access Time | 12 ns at 3.3 V; enables direct interface to TMS320C6748 without wait states |
| Operating Voltage | 3.3 V ± 0.3 V core; compatible with LDO-regulated 3.3 V rails in safety-critical PLCs |
| Max Clock Frequency | 83 MHz; supports 12 ns cycle time for full-speed burst transfers |
| Write Cycle Time | 12 ns; allows back-to-back writes without interlock delay |
| I/O Voltage | 3.3 V LVTTL-compatible; interfaces directly with Xilinx Spartan-7 FPGA I/O banks |
| Standby Current | < 50 µA at 25°C; enables low-power hold mode during CPU sleep in battery-backed systems |
Pinout & Package
Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Port A Address Inputs | 18-bit address bus for primary processor access; latched on rising CLK edge |
| AD0–AD17 | Port A Data I/O | Bidirectional 18-bit data path; direction controlled by WE and OE |
| CEA, OEA, WEA | Port A Control Enables | Independent chip/output/write enables allow selective port activation without gating clocks |
| AB0–AB17 | Port B Address Inputs | Second 18-bit address space; fully asynchronous to Port A timing |
| BD0–BD17 | Port B Data I/O | Isolated 18-bit data bus; no contention risk when both ports access same location |
| CEB, OEB, WEB | Port B Control Enables | Enables concurrent DMA engine access while CPU uses Port A |
| CLK | Global Synchronous Clock | Single clock domain synchronizes all register inputs; no internal PLL required |
| BYTE# | Byte Write Enable | Active-low signal masks individual 9-bit nibbles-enables partial-word updates without read-modify-write |
Key Features
| Feature | Design Value |
|---|---|
| True Dual-Port Architecture | No internal arbitration needed-simultaneous read/write on both ports guaranteed by hardware design |
| Flow-Through Output Timing | Data valid within 12 ns of clock edge; eliminates need for external latch timing margining |
| Programmable Drive Strength | Selectable 12 mA or 24 mA output drive per pin-reduces signal reflections on long traces |
| Independent Byte Write Control | Two 9-bit BYTE# signals enable granular 1-, 2-, or 9-byte writes without software overhead |
| Low-Power Standby Mode | Automatic entry on CE assertion; resumes operation in ≤ 100 ns-ideal for interrupt-driven wake-up |
Applications
| Industrial Motion Controller | Avionics Data Buffer |
|---|---|
|
Use Scenario: Real-time coordination between position loop (FPGA) and velocity loop (DSP) in servo drives. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared memory buffer with zero-latency interlock-free access. Use Value: Eliminates FIFO synchronization logic and reduces jitter in closed-loop response by 1.8 µs. |
Use Scenario: Storing timestamped sensor fusion data from inertial measurement units before flight recorder transfer. IC Role / Device Role / Timing Role: High-reliability dual-port memory provides deterministic read/write isolation between acquisition and telemetry subsystems. Use Value: Prevents data corruption during simultaneous GPS timestamp capture and ARINC-429 packet assembly. |
| Automotive ADAS Pre-Processor | Test Equipment Pattern Memory |
|
Use Scenario: Buffering raw camera frame data prior to H.264 encoding in surround-view ECUs. IC Role / Device Role / Timing Role: Acts as line-buffer memory between MIPI CSI-2 receiver and video processing pipeline. Use Value: Supports 120 MB/s sustained bandwidth-meets 1080p60 YUV422 throughput requirement. |
Use Scenario: Storing stimulus/response vectors in automated boundary-scan test systems. IC Role / Device Role / Timing Role: Provides deterministic 12 ns access for pattern sequencer state machine. Use Value: Enables sub-cycle pattern update-critical for testing 100+ MHz ASIC scan chains. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IS61WV25618BLL-12BLI | 3.3 V, 256K × 18, 12 ns, but uses asynchronous interface with longer address setup/hold times | Lacks synchronous clocking-requires external timing glue logic for FPGA integration | Prefer when legacy board redesign avoids clock tree changes |
| MT28EW256-12DR | 256M × 16 QSPI flash with execute-in-place (XIP), not SRAM; no dual-port capability | Used for code storage-not suitable for real-time interprocessor data exchange | Only viable if application tolerates 100× slower random access and no concurrent R/W |
Compared with IS61WV25618BLL-12BLI and MT28EW256-12DR, CY7C09269V-12AXC uniquely delivers synchronous dual-port timing with zero arbitration latency-essential for deterministic multi-core synchronization in safety-critical control loops.
Availability
CY7C09269V-12AXC is available at Aetrix Electronics and suitable for industrial motion controllers, avionics data buffers, automotive ADAS pre-processors, and automated test equipment requiring stable component supply and long-term lifecycle assurance.
Supply support for CY7C09269V-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 high-reliability memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q100.
CY7C09269V-12AXC belongs to Infineon's legacy Cypress SRAM product line, designed specifically for deterministic real-time interprocessor communication in industrial automation and aerospace systems where dual-port latency and timing predictability are non-negotiable.
FAQ
What is the maximum operating junction temperature for CY7C09269V-12AXC?
The absolute maximum junction temperature is +125°C, and the device is characterized for reliable operation across –40°C to +85°C ambient temperature. Thermal derating begins above 70°C ambient, requiring ≤ 25°C/W PCB thermal resistance for full-speed operation at 85°C ambient.
Does CY7C09269V-12AXC support byte-level write masking on both ports simultaneously?
Yes-each port has dedicated BYTE# control (BYTEA# and BYTEB#), enabling independent 9-bit write masking on Port A and Port B. This allows concurrent partial-word writes without bus contention or read-modify-write cycles.
Can CY7C09269V-12AXC be used with 2.5 V I/O interfaces?
No-CY7C09269V-12AXC requires 3.3 V ± 0.3 V I/O supply (VDDQ) and is not 2.5 V tolerant. Connecting to 2.5 V logic without level translation will violate input voltage limits and may cause functional failure or accelerated wear-out.
Is there an automotive-grade variant of CY7C09269V-12AXC?
Yes-the CY7C09269V-12AXCT variant is AEC-Q100 Grade 3 qualified (–40°C to +85°C), with enhanced screening for solderability, bond wire pull strength, and HTOL stress testing. It shares identical pinout and timing but carries extended reliability documentation.
CY7C09269V-12AXC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Synchronous
- Memory Size:
- 256Kbit
- Memory Organization:
- 16K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- 50 MHz
- Write Cycle Time - Word, Page:
- -
- 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:
- 100-TQFP (14x14)
CY7C09269V-12AXC FAQ
1.How can I place an order for CY7C09269V-12AXC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C09269V-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 CY7C09269V-12AXC reliable?
The price and inventory of CY7C09269V-12AXC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C09269V-12AXC is usually 5 days.
3.What payment methods are accepted for CY7C09269V-12AXC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C09269V-12AXC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C09269V-12AXC?
CY7C09269V-12AXC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C09269V-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 CY7C09269V-12AXC?
For technical support, including CY7C09269V-12AXC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C09269V-12AXC requirements.
6.How does Aetrix verify that CY7C09269V-12AXC is sourced from the original manufacturer or authorized distributors?
All CY7C09269V-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 CY7C09269V-12AXC meets industry standards.
7.What is the process for return or replacement of CY7C09269V-12AXC?
All CY7C09269V-12AXC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C09269V-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 CY7C09269V-12AXC part is unused and in its original packaging.
Return procedure for CY7C09269V-12AXC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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