Cypress Semiconductor Corp CY7C09279V-6AXC

Overview

CY7C09279V-6AXC from Cypress Semiconductor is a 3.3V, 32K × 16 synchronous dual-port static RAM with true dual-ported architecture enabling simultaneous read/write access to the same memory location, 100 MHz pipelined operation, 6.5 ns clock-to-data access (tCD2), and 100-pin TQFP package for industrial temperature range (–40°C to +85°C). It serves as shared memory buffer in high-speed FPGA-to-FPGA or DSP-to-ASIC interconnects.

For engineers reviewing the CY7C09279V-6AXC datasheet, CY7C09279V-6AXC pinout, CY7C09279V-6AXC application, or CY7C09279V-6AXC equivalent, key selection criteria include pipelined vs. flow-through timing mode selection, dual-port byte enable control (UBL/LBL), burst counter support for interleaved addressing, and CMOS-level standby current of 10 μA.

Technical Context

This device implements two fully independent synchronous ports-left and right-each with dedicated clock (CLKL/CLKR), address (A0L–A14L / A0R–A14R), data I/O (I/O0L–I/O15L / I/O0R–I/O15R), and control signals (R/WL/R/WR, CE0/CE1, OEL/OER, LBL/LBR, UBL/UBR, FT/PIPE, CNTEN, CNTRST, ADS). Address strobes (ADSL/ADSR) load burst counters, enabling automatic sequential addressing without external logic.

It supports three operational modes: pipelined (FT/PIPE = HIGH, tCD2 = 6.5 ns max), flow-through (FT/PIPE = LOW, tCD1 = 18 ns max), and burst-where internal counters increment addresses on each clock edge when CNTEN is asserted. The 0.35 µm CMOS process ensures low power: 115 mA typical active current and 10 µA typical ISB3 standby current at CMOS input levels.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (JEDEC MO-179AA), 14 mm × 14 mm body, 0.5 mm lead pitch, exposed pad not electrically connected.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT70V27L15PF and IS61WV3216EBLL-10MLI, CY7C09279V-6AXC delivers 100 MHz pipelined throughput, integrated burst addressing, and 10 µA CMOS standby-making it uniquely suited for power-constrained, high-clock-domain-synchronization applications.

Availability

CY7C09279V-6AXC is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, FPGA co-processing, and high-fidelity audio systems requiring stable component supply across extended product lifecycles.

Supply support for CY7C09279V-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) designs high-performance memory and programmable solutions for embedded systems, emphasizing reliability, low power, and interoperability with leading FPGAs and processors.

The CY7C092xxV series targets high-speed inter-processor communication where deterministic latency, concurrent access, and minimal external logic are mandatory-especially in networking, test equipment, and real-time control.

FAQ

What is the maximum guaranteed clock frequency in pipelined mode?

The CY7C09279V-6AXC is rated for 100 MHz maximum clock frequency (fMAX2) in pipelined mode, corresponding to a 10 ns clock cycle time (tCYC2). This is validated across the full industrial temperature range (–40°C to +85°C) and 3.3 V ± 300 mV supply, with tCD2 ≤ 6.5 ns under Load 2 conditions (250 Ω Thévenin, 5 pF).

Can both ports access the same memory location simultaneously?

Yes-the CY7C09279V-6AXC uses true dual-ported memory cells that permit simultaneous read and write operations to the same address. However, the final stored value is undefined if both ports write concurrently; for deterministic behavior, use external arbitration or stagger write cycles using CE0/CE1 gating.

How does the burst counter operate and what triggers its reset?

The burst counter loads its initial value from the address bus when ADS is asserted LOW, then increments on each rising clock edge while CNTEN is LOW. CNTRST (active-LOW) resets the counter to zero independently of ADS or CNTEN status, allowing precise restart of sequential transfers without reasserting ADS.

Is the 100-pin TQFP package lead-free and RoHS compliant?

Yes-the "-6AXC" suffix denotes a Pb-free, RoHS-compliant 100-pin TQFP package (JEDEC MO-179AA), with NiPdAu lead finish and moisture sensitivity level (MSL) 3 per J-STD-020. Full compliance documentation is available in Cypress's official product change notices (PCNs) for this date code.