Infineon Technologies CY7C0832AV-167AXC

Overview

CY7C0832AV-167AXC from Infineon (formerly Cypress) is a 32K × 18-bit synchronous dual-port static RAM (SRAM) with 167 MHz maximum clock frequency, 5 ns access time, and 3.3 V core voltage. It supports independent concurrent read/write operations on both ports and is used in high-speed networking packet buffering, real-time DSP data exchange, and FPGA co-processor memory interfaces.

For engineers reviewing the CY7C0832AV-167AXC datasheet, CY7C0832AV-167AXC pinout, CY7C0832AV-167AXC application, or CY7C0832AV-167AXC equivalent, key selection criteria include dual-port arbitration timing, bus contention resolution method, power-down mode behavior, and compatibility with TSI/PCIe bridge memory-mapped I/O configurations.

Technical Context

This SRAM implements full hardware bus arbitration with BUSY and SEMAPHORE signals to manage simultaneous port access. It features separate byte-enable controls per port (UB/LB for Port A, UB1/LB1 for Port B), enabling granular 8-bit writes without read-modify-write cycles.

The device uses a synchronous interface with registered address, data, and control inputs aligned to rising CLK edges. It supports pipeline mode (with one-cycle latency) and flow-through mode (zero-cycle latency), selectable via MODE pin, allowing optimization for throughput vs. latency in real-time systems.

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Flat Package (TQFP), 0.5 mm pitch, lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT70V27L15PF8 and IS61WV102418B, CY7C0832AV-167AXC uniquely delivers 167 MHz synchronous operation with hardware semaphores-enabling higher throughput and safer resource sharing in modern FPGA- and multicore-based real-time systems.

Availability

CY7C0832AV-167AXC is available at Aetrix Electronics and suitable for telecom infrastructure, industrial motion control, FPGA-based prototyping, and automotive ADAS sensor fusion requiring stable component supply and long-term manufacturability.

Supply support for CY7C0832AV-167AXC 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and memory products, with global R&D and manufacturing infrastructure.

CY7C0832AV-167AXC belongs to Infineon's legacy Cypress synchronous dual-port SRAM product line, designed specifically for high-bandwidth, low-latency inter-processor communication in networking, test equipment, and real-time embedded systems.

FAQ

What arbitration method does CY7C0832AV-167AXC use for conflicting port accesses?

The device implements priority-based hardware arbitration using dedicated BUSY and SEMAPHORE signals. When both ports attempt simultaneous access to the same address, Port A is granted priority; Port B receives BUSY assertion and must wait until the conflict resolves. This eliminates software overhead and guarantees deterministic timing.

Can CY7C0832AV-167AXC operate with different clock frequencies on Port A and Port B?

Yes-Port A and Port B accept independent clock inputs (CLKA and CLKB) with no phase or frequency relationship required. This enables true asynchronous operation between dissimilar processors or clock domains, such as an ARM core running at 200 MHz and an FPGA logic block running at 100 MHz.

Does CY7C0832AV-167AXC support partial-word writes without read-modify-write cycles?

Yes-it provides independent upper and lower byte enables (UB/LB for Port A; UB1/LB1 for Port B), allowing 8-bit writes to either byte lane of the 18-bit data bus. This avoids destructive read-modify-write sequences and reduces bus traffic in firmware-driven configuration updates.

Is CY7C0832AV-167AXC pin-compatible with earlier Cypress dual-port SRAMs like CY7C0831V?

No-CY7C0832AV-167AXC uses a 100-pin TQFP package with updated pin assignments for enhanced signal integrity and arbitration signaling. It is not mechanically or electrically pin-compatible with the 86-pin PLCC-packaged CY7C0831V; PCB layout redesign is required for migration.