Infineon Technologies CY7C09099V-6AXC

Overview

CY7C09099V-6AXC from Cypress Semiconductor is a 3.3V, 128K × 8-bit synchronous dual-port static RAM with true dual-ported architecture enabling simultaneous independent read/write access to any memory location, pipelined output mode supporting 100 MHz operation, 6.5 ns clock-to-data access (tCD2), and 100-pin TQFP package for industrial temperature range (–40°C to +85°C). It is used in high-speed inter-processor communication and FPGA co-processor buffering.

For engineers reviewing the CY7C09099V-6AXC datasheet, CY7C09099V-6AXC pinout, CY7C09099V-6AXC application, or CY7C09099V-6AXC equivalent, key selection criteria include pipelined vs. flow-through timing modes, dual-chip-enable depth expansion capability, burst counter support for interleaved addressing, and CMOS-level standby current of 10 μA.

Technical Context

This device implements two fully synchronous, independent port interfaces-left and right-each with dedicated clock (CLKL/CLKR), address (A0L–A16L / A0R–A16R), data (I/O0L–I/O7L / I/O0R–I/O7R), and control signals (R/WL/R/WR, OEL/OER, CE0L/CE0R, CE1L/CE1R). Address strobe (ADSL/ADSR) and counter enable (CNTENL/CNTENR) allow burst-mode sequential access without external address generation.

It supports three operational modes selected via FT/PIPE pins: pipelined (data registered on clock edge, tCD2 = 6.5 ns max), flow-through (combinatorial output, tCD1 = 15 ns max), and burst (internal counter increments on CNTEN assertion). Power management includes automatic power-down when CE0 is HIGH or CE1 is LOW, reducing ICC to 10 μA in ISB3 mode.

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Plastic Flatpack (TQFP), 14 mm × 14 mm, 0.5 mm pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT70V27L15PF8 and ISSI IS61WV1288100BLL, CY7C09099V-6AXC delivers 15× faster pipelined access, integrated burst addressing, and industrial-temperature 3.3V compatibility - making it uniquely suited for new-generation FPGA- and DSP-based embedded systems requiring deterministic low-latency memory sharing.

Availability

CY7C09099V-6AXC is available at Aetrix Electronics and suitable for industrial motion controllers, FPGA co-processor buffers, telecom line cards, and automotive ADAS sensor fusion hubs requiring stable component supply across extended product lifecycles.

Supply support for CY7C09099V-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 U.S.-based semiconductor company specializing in high-performance memory, microcontrollers, and programmable system-on-chip solutions for industrial, automotive, and communications markets.

CY7C09099V-6AXC belongs to Cypress's synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency inter-processor communication in real-time embedded systems where clock-synchronized memory access and burst efficiency are critical.

FAQ

What is the difference between pipelined and flow-through modes on CY7C09099V-6AXC?

In pipelined mode (FT/PIPE = HIGH), data is registered on the clock edge, delivering 6.5 ns clock-to-data (tCD2) but introducing one-cycle latency. In flow-through mode (FT/PIPE = LOW), data appears combinatorially after address setup, yielding 15 ns tCD1 with zero-cycle latency. The choice depends on whether system timing margins favor lower latency (flow-through) or higher throughput (pipelined).

Can both ports operate at different clock frequencies?

Yes - CLKL and CLKR are fully independent inputs, allowing left and right ports to run at different frequencies (e.g., 100 MHz left port for FPGA interface, 50 MHz right port for microcontroller access). Setup/hold timing must be met separately for each port, and cross-port timing parameters like tCWDD (write clock to read data delay) remain valid regardless of frequency mismatch.

How does the burst counter function without external address generation?

When CNTEN is asserted LOW and ADS is pulsed, the current address is loaded into the internal burst counter. On each subsequent rising clock edge, the counter auto-increments - generating sequential addresses internally. This eliminates need for external address sequencers or state machines, reducing FPGA logic utilization and PCB routing complexity in streaming applications.

Is CY7C09099V-6AXC pin-compatible with earlier Cypress dual-port SRAMs?

No - CY7C09099V-6AXC uses a 100-pin TQFP footprint optimized for 128K × 8 organization and includes dedicated pins for burst control (CNTEN, CNTRST) and dual CE logic not present in legacy 64-pin or 80-pin devices. Migration requires PCB redesign and firmware adaptation to leverage new timing and counter features.