Infineon Technologies CY7C09089V-12AXC

Overview

CY7C09089V-12AXC from Cypress Semiconductor is a 64K × 8-bit synchronous dual-port static RAM with true dual-port architecture, enabling independent simultaneous read/write access to any memory location on left and right ports. It operates at 3.3 V, supports pipelined (50 MHz) and flow-through (33 MHz) modes, delivers 12 ns max clock-to-data access in pipelined mode, and features dual chip enables, burst counters, and automatic power-down for embedded inter-processor communication and FIFO buffering.

For engineers reviewing the CY7C09089V-12AXC datasheet, CY7C09089V-12AXC pinout, CY7C09089V-12AXC application, or CY7C09089V-12AXC equivalent, key selection criteria include port timing independence, burst counter support for interleaved addressing, low 10 μA CMOS standby current, and 100-pin TQFP package compatibility with depth-expansion configurations.

Technical Context

This device implements fully synchronous dual-port SRAM logic with separate clock, address, control, and data paths per port. Each port includes dedicated registers for address, control (CE0/CE1/R/W/OE/FT-Pipe/CNTEN/CNTRST/ADS), and I/O, enabling zero-wait-state operation under pipelined mode with tCD2 = 12 ns.

The internal burst counter increments on CLK rising edges when CNTEN is asserted, and loads on ADS assertion - supporting fast sequential memory access without external address generation. Flow-through mode bypasses output registers to eliminate latency (tCD1 = 25 ns), while pipelined mode minimizes cycle time (tCYC2 = 20 ns) via registered outputs.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT70V27L12PF and IS61WV6416BLL-12MLI, CY7C09089V-12AXC uniquely supports per-port mode selection (pipelined/flow-through), integrated burst counters, and dual CE logic - reducing external component count and enabling flexible multi-domain memory sharing.

Availability

CY7C09089V-12AXC is available at Aetrix Electronics and suitable for inter-processor communication, FIFO buffering, and video frame storage requiring stable component supply, long-term lifecycle support, and commercial-temperature-grade reliability.

Supply support for CY7C09089V-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

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance memory and programmable solutions for embedded systems, emphasizing signal integrity, low power, and mixed-signal integration.

CY7C09089V-12AXC belongs to the CY7C09x79V/89V/99V synchronous dual-port SRAM product line, engineered specifically for deterministic, low-latency inter-processor and real-time data buffering applications in industrial and communications equipment.

FAQ

What is the maximum operating frequency in pipelined mode for CY7C09089V-12AXC?

The CY7C09089V-12AXC supports up to 50 MHz in pipelined mode, corresponding to a 20 ns clock cycle time (tCYC2). This is confirmed by the -12 speed grade specification in the Cypress datasheet (Document #: 38-06043 Rev. *C, page 7), where fMAX2 = 50 MHz and tCD2 = 12 ns (max).

Does CY7C09089V-12AXC support burst addressing on both ports?

Yes - each port has dedicated CNTEN and CNTRST inputs, and the burst counter loads on ADS assertion. The counter increments on every rising edge of its respective CLK when CNTEN is LOW, covering the full 64K address space and wrapping automatically, as documented in the Functional Description (page 2) and Pin Definitions (page 4).

Can CY7C09089V-12AXC operate with different clock frequencies on left and right ports?

Yes - CLKL and CLKR are fully independent inputs with no phase or frequency relationship required. The device supports asynchronous operation between ports, enabling use in multi-clock-domain systems such as FPGA-to-ASIC interfaces or heterogeneous processor clusters, as specified in the Logic Block Diagram and Functional Description (pages 2–3).

Is the 100-pin TQFP package of CY7C09089V-12AXC RoHS-compliant?

Yes - the datasheet explicitly states "Pb-free packages available" (page 1, Features section) and lists the -12AXC suffix as compliant with JEDEC standards for lead-free assembly. The package meets RoHS Directive 2011/65/EU requirements for restricted substances.