Infineon Technologies CY7C09159AV-9AXC

Overview

CY7C09159AV-9AXC from Infineon Technologies is a 128K × 18 synchronous dual-port static RAM (SRAM) with 3.3 V core voltage, 9 ns access time, and separate independent data buses for simultaneous read/write operations on each port. It supports high-speed industrial control systems requiring deterministic memory access in real-time PLCs and motion controllers.

For engineers reviewing the CY7C09159AV-9AXC datasheet, CY7C09159AV-9AXC pinout, CY7C09159AV-9AXC application, or CY7C09159AV-9AXC equivalent, this device serves as a drop-in replacement for legacy Cypress dual-port SRAMs in FPGA co-processor buffers, telecom packet buffering, and video frame store architectures where bus contention avoidance and cycle-deterministic latency are critical.

Technical Context

This device implements true dual-port architecture with fully independent address, data, and control lines per port-no internal arbitration logic required. Each port features separate chip enable (CE), output enable (OE), and write enable (WE) signals, enabling asynchronous operation between ports at up to 111 MHz clock rate.

It integrates flow-through synchronous timing with registered address and control inputs on both ports, supporting pipelined burst reads and single-cycle writes. The device includes power-down mode (standby current < 50 µA) and JTAG boundary-scan support per IEEE 1149.1.

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Flat Package (TQFP), 0.5 mm pitch, body size 14 mm × 14 mm, exposed thermal pad (non-electrical).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV12818BLL-9MLI and 728311L10PF8, CY7C09159AV-9AXC delivers guaranteed synchronous timing, integrated JTAG, and industrial TQFP packaging-making it optimal for new designs requiring testability, timing predictability, and drop-in compatibility with Cypress-based reference platforms.

Availability

CY7C09159AV-9AXC is available at Aetrix Electronics and suitable for industrial PLCs, telecom switching fabric, FPGA-based video processing, and automotive ADAS domain controllers requiring stable component supply and long-term lifecycle assurance.

Supply support for CY7C09159AV-9AXC 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 German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and memory products-with global manufacturing, qualification, and support infrastructure.

This device belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for deterministic, high-bandwidth memory interfacing in real-time embedded systems where dual-ported access and industrial reliability are mandatory.

FAQ

What is the maximum operating frequency supported by CY7C09159AV-9AXC?

The device supports a maximum clock frequency of 111 MHz on both ports, derived from its 9 ns access time specification. This frequency is guaranteed across the full industrial temperature range (-40°C to +85°C) and supply voltage (3.3 V ± 0.3 V), with all timing parameters met under worst-case conditions per the official Infineon datasheet Rev. *E.

Does CY7C09159AV-9AXC support power-down mode, and what is the typical standby current?

Yes, CY7C09159AV-9AXC supports an active power-down mode entered via CE_A and CE_B high, reducing ICC to less than 50 µA while retaining full data retention. This mode is fully specified in the datasheet and validated across temperature and voltage extremes, making it suitable for battery-backed or energy-constrained industrial nodes.

Is JTAG boundary-scan functionality available, and which standard does it comply with?

Yes, the device integrates a full IEEE 1149.1-compliant JTAG boundary-scan chain with TCK, TMS, TDI, and TDO pins. It supports instruction register scan, data register scan, and EXTEST operation-verified in Infineon's production test flow and documented in the device-specific boundary-scan description language (BSDL) file.

Can Port A and Port B operate at different clock frequencies or phases?

Yes-each port has independent clock inputs (CLK_A and CLK_B), allowing fully asynchronous operation at different frequencies, phases, or even DC (static) conditions. The internal timing architecture ensures no metastability or arbitration conflict, as confirmed by the dual-port timing diagrams and setup/hold specifications in the official datasheet.