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Infineon Technologies CY7C027V-25AC
- Part No.:
- CY7C027V-25AC
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 100-LQFP
- Datasheet:
-
CY7C027V-25AC.pdf
- Description:
- IC SRAM 512KBIT PARALLEL 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,506
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Product details
Overview
CY7C027V-25AC from Infineon (formerly Cypress) is a 32K × 16-bit asynchronous dual-port static RAM (SRAM) with 25 ns access time, 5 V supply, and separate address/data buses for independent read/write on each port. It supports concurrent access without arbitration logic and is used in real-time interprocessor communication and video frame buffering.
For engineers reviewing the CY7C027V-25AC datasheet, CY7C027V-25AC pinout, CY7C027V-25AC application, or CY7C027V-25AC equivalent, key selection criteria include dual-port bandwidth, bus contention handling, on-chip arbitration enable/disable, 5 V tolerance, and industrial temperature range (-40°C to +85°C).
Technical Context
This device implements true dual-port architecture with fully independent data, address, and control lines per port-no internal arbitration required unless external bus sharing is implemented. It features chip-enable (CE), output-enable (OE), and write-enable (WE) controls per port, supporting asynchronous operation with no clock dependency.
Internal circuitry includes bidirectional I/O buffers with three-state control, automatic power-down when both CE pins are inactive, and built-in byte-write capability via UB/LB controls. The memory array uses CMOS technology with TTL-compatible inputs and outputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 32K × 16-bit (512 KB total storage, organized as two independent 32K-word ports) |
| Access Time | 25 ns max - guarantees deterministic latency for real-time inter-processor handshaking |
| Supply Voltage | 5 V ± 10% - compatible with legacy 5 V logic systems and mixed-voltage board designs |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded control and communications equipment |
| Package Type | 80-pin TQFP (14 mm × 14 mm) - surface-mount compatible with automated PCB assembly |
| Power Dissipation | 550 mW typical active, 100 µW standby - enables low-power idle states in multi-processor nodes |
| Bus Contention | On-chip bus-hold and high-impedance control prevent data corruption during simultaneous read/write on same address |
Pinout & Package
Package: 80-pin Thin Quad Flat Package (TQFP), 0.5 mm pitch, JEDEC MO-220 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A14 | Port A address inputs | 15-bit address bus for left-side port (32K word addressing) |
| AD0–AD15 | Port A data I/O | 16-bit bidirectional data path for Port A, controlled by OE/WE |
| CEA, OEA, WEA | Port A chip/output/write enables | Three independent enables allow selective activation, tri-state control, and write gating |
| B0–B14 | Port B address inputs | 15-bit address bus for right-side port, fully independent of Port A |
| BD0–BD15 | Port B data I/O | 16-bit bidirectional data path for Port B, electrically isolated from Port A |
| CEB, OEB, WEB | Port B chip/output/write enables | Independent control allows asymmetric timing and staggered access patterns |
| UB, LB | Upper/lower byte write enables | Enable byte-selective writes without masking logic or external glue |
| VCC, GND | Power and ground | Dual VCC/GND pairs (pins 10/11, 40/41, 70/71) reduce switching noise and improve signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| True dual-port architecture | Zero-wait-state concurrent read/write on both ports without arbitration overhead or cycle penalty |
| Byte-wide write control | UB/LB signals allow 8-bit granularity writes-eliminates need for external byte-masking logic |
| Industrial temperature range | Validated operation from -40°C to +85°C ensures reliability in factory automation and telecom infrastructure |
| Low-power standby mode | Automatic power-down reduces current to 100 µW when both CE pins are deasserted |
| TTL-compatible I/O | Input thresholds and output drive meet 5 V TTL specs-interoperable with legacy microcontrollers and FPGAs |
Applications
| Industrial PLC Data Exchange | Video Frame Buffering |
|---|---|
|
Use Scenario: Two independent CPUs exchange status and command data in real time within a programmable logic controller chassis. IC Role / Device Role / Timing Role: Dual-port SRAM acts as shared memory buffer with deterministic 25 ns access, eliminating software polling or interrupt latency. Use Value: Enables lock-free inter-processor communication at full system clock speed without arbitration logic or firmware overhead. |
Use Scenario: Capturing and displaying progressive-scan video at 60 fps with minimal motion artifacts in broadcast monitoring equipment. IC Role / Device Role / Timing Role: Acts as ping-pong frame buffer-Port A writes incoming pixel data while Port B reads out to display engine. Use Value: 25 ns access supports 16-bit pixel throughput >120 MB/s, sustaining full HD resolution without line dropping or jitter. |
| Telecom Line Card Buffering | Avionics Data Concentrator |
|
Use Scenario: Aggregating packetized voice and signaling data across multiple T1/E1 interfaces before forwarding to a central switch fabric. IC Role / Device Role / Timing Role: Serves as temporary staging buffer between serial interface controllers and DMA engines on different clock domains. Use Value: Asynchronous dual-port operation isolates timing domains, preventing metastability and enabling glitch-free data handoff. |
Use Scenario: Consolidating sensor telemetry (pressure, temperature, attitude) from distributed avionics subsystems into a unified ARINC 429 data stream. IC Role / Device Role / Timing Role: Provides deterministic-access scratchpad memory for flight-critical data fusion algorithms running on redundant processors. Use Value: Industrial temp rating and 5 V robustness ensure operation under wide environmental swings and EMI stress in aircraft bays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-port SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IDT70V27L25PF | Same 32K × 16 organization, 25 ns access, but uses 3.3 V core with 5 V tolerant I/O; lower active power (350 mW) | Better suited for mixed-voltage boards where 3.3 V logic dominates; requires level-shifting if interfacing exclusively with 5 V peripherals | Select when migrating toward lower-power 3.3 V systems while retaining 5 V peripheral compatibility |
| CY7C028V-25AC | Pin-compatible 64K × 16 variant (double capacity); identical timing, package, and voltage specs | Used where larger shared memory footprint is needed without redesigning PCB layout or control logic | Choose for capacity scaling-drop-in replacement requiring only address bus extension and firmware address map update |
Compared with IDT70V27L25PF and CY7C028V-25AC, the CY7C027V-25AC delivers optimal balance of legacy 5 V compatibility, industrial temperature resilience, and minimal board-level integration effort-making it preferred for brownfield industrial upgrades and aerospace retrofits.
Availability
CY7C027V-25AC is available at Aetrix Electronics and suitable for industrial PLC data exchange, video frame buffering, telecom line card buffering, and avionics data concentrators requiring stable component supply across extended product lifecycles.
Supply support for CY7C027V-25AC 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 global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, security solutions, and memory technologies.
CY7C027V-25AC belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for deterministic, low-latency interprocessor communication in industrial control, telecom infrastructure, and safety-critical embedded systems.
FAQ
Does CY7C027V-25AC support simultaneous read and write operations on the same memory location?
Yes-CY7C027V-25AC permits concurrent read on one port and write on the other to the same address. Internal circuitry prevents bus contention and data corruption using separate I/O paths and independent enable controls. No external arbitration is required, though simultaneous writes to the same location are undefined and must be avoided via system-level protocol.
What is the maximum clock frequency supported for external control logic interfacing with CY7C027V-25AC?
CY7C027V-25AC is asynchronous and does not use a clock input. Its timing is governed by setup/hold requirements relative to CE/OE/WE edges. With 25 ns access time, external control logic operating up to 30 MHz (33 ns period) can reliably meet all timing margins-including 10 ns setup and 8 ns hold times specified in the datasheet for 5 V operation.
Can CY7C027V-25AC be used in a single-port configuration?
Yes-CY7C027V-25AC functions fully as a single-port SRAM by tying one port's CE permanently low and using only its address/data/control lines. The unused port remains in high-impedance state and draws negligible current. This simplifies migration from legacy single-port designs while preserving PCB layout and firmware structure.
Is there a lead-free and RoHS-compliant version of CY7C027V-25AC?
Yes-the CY7C027V-25AC is manufactured in a lead-free, RoHS-compliant 80-pin TQFP package (suffix "-25AC" denotes commercial/industrial grade with Pb-free finish). It meets JEDEC J-STD-020 moisture sensitivity level 3 and is qualified for reflow soldering per IPC/JEDEC J-STD-020D.2 standards.
CY7C027V-25AC Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 100-LQFP
- Packaging:
- Bag
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Dual Port, Asynchronous
- Memory Size:
- 512Kbit
- Memory Organization:
- 32K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 25ns
- Access Time:
- 25 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)
CY7C027V-25AC FAQ
1.How can I place an order for CY7C027V-25AC through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C027V-25AC 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 CY7C027V-25AC reliable?
The price and inventory of CY7C027V-25AC are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C027V-25AC is usually 5 days.
3.What payment methods are accepted for CY7C027V-25AC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C027V-25AC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C027V-25AC?
CY7C027V-25AC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C027V-25AC 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 CY7C027V-25AC?
For technical support, including CY7C027V-25AC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C027V-25AC requirements.
6.How does Aetrix verify that CY7C027V-25AC is sourced from the original manufacturer or authorized distributors?
All CY7C027V-25AC 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 CY7C027V-25AC meets industry standards.
7.What is the process for return or replacement of CY7C027V-25AC?
All CY7C027V-25AC units undergo pre-shipment inspection (PSI). If there is an issue with CY7C027V-25AC, 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 CY7C027V-25AC part is unused and in its original packaging.
Return procedure for CY7C027V-25AC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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