Infineon Technologies CY7C09089V-6AXC

Overview

CY7C09089V-6AXC from Cypress Semiconductor is a 64K × 8-bit synchronous dual-port static RAM with true dual-ported architecture, pipelined/flow-through mode selection, 100 MHz max clock frequency (pipelined), 6.5 ns clock-to-data access time, and 3.3 V operation - deployed in high-speed inter-processor communication and FPGA co-processor buffering systems.

For engineers reviewing the CY7C09089V-6AXC datasheet, CY7C09089V-6AXC pinout, CY7C09089V-6AXC application, or CY7C09089V-6AXC equivalent, key selection criteria include simultaneous port arbitration behavior, burst counter support for interleaved addressing, low-power standby current (10 µA), and TQFP-100 package compatibility with industrial temperature range (–40°C to +85°C).

Technical Context

This device implements two fully independent synchronous ports sharing a single 64K × 8-bit SRAM array, each with dedicated address registers, burst counters, and control logic. Pipelined output mode registers data on CLK edges for deterministic 6.5 ns tCD2 timing; flow-through mode bypasses the register to deliver data in 18 ns tCD1 with zero-cycle latency.

Each port supports address strobe (ADS)-loaded burst addressing, counter enable (CNTEN)-driven auto-increment, and counter reset (CNTRST) for looped sequential access. Chip enables CE0/CE1 operate in active-low/high pair logic to gate port activity and enable depth expansion across multiple devices.

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Plastic Flatpack (TQFP), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed pad not present. Pinout validated per Cypress Document #38-06043 Rev. *C, Figures 1 and 4.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous dual-port SRAM applications.

Compared with IDT70V27L15PF and IS61WV6416BLL-10MLI, CY7C09089V-6AXC uniquely delivers pipelined 6.5 ns access, per-port burst counters, and selectable flow-through mode - enabling higher throughput and lower host overhead in true dual-master embedded systems.

Availability

CY7C09089V-6AXC is available at Aetrix Electronics and suitable for inter-processor communication, FPGA co-processor buffering, and industrial motion controller memory requiring stable component supply, long-term lifecycle assurance, and industrial temperature compliance.

Supply support for CY7C09089V-6AXC 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

Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in high-performance memory, PSoC programmable systems-on-chip, and USB/USB-C solutions.

CY7C09089V belongs to Cypress's synchronous dual-port SRAM product line, engineered for deterministic, low-latency data exchange between independent processing elements in real-time embedded systems.

FAQ

Does CY7C09089V-6AXC support simultaneous read and write to the same memory address?

No - simultaneous writes to the same address produce undefined data due to internal cell contention. The datasheet explicitly states "when writing simultaneously to the same location, the final value cannot be guaranteed." Designers must implement external arbitration or use separate address regions to avoid conflict. This behavior is inherent to true dual-port SRAM cell architecture and is not configurable.

What is the function of the FT/PIPE pin, and how does it affect timing?

The FT/PIPE pin selects between pipelined (HIGH) and flow-through (LOW) output modes. In pipelined mode, data is registered on the clock edge, yielding 6.5 ns tCD2 but introducing one-cycle latency. In flow-through mode, data appears combinatorially after address setup, delivering 18 ns tCD1 with zero-cycle latency. Mode selection is asynchronous and takes effect on the next clock edge.

Can the burst counter be used independently on each port?

Yes - each port has its own dedicated burst counter, controlled by its respective CNTEN and CNTRST signals. When CNTEN is asserted LOW, the counter increments on every rising CLK edge, regardless of the other port's state. ADS loads the counter with the current address, and CNTRST resets it to zero - all operations are fully isolated per port.

Is CY7C09089V-6AXC pin-compatible with earlier Cypress dual-port SRAMs like CY7C028V?

No - CY7C09089V-6AXC uses a 100-pin TQFP package with distinct pin assignments (e.g., dual CE0/CE1 pairs, separate FT/PIPE pins, ADS inputs) not found on the older 68-pin SOJ CY7C028V. Migration requires PCB redesign and firmware adaptation to leverage new features like burst counters and mode selection.