Infineon Technologies CY7C0832BV-133AI

Overview

CY7C0832BV-133AI from Infineon Technologies is a 32K × 18-bit synchronous dual-port static RAM (SRAM) with 3.3 V core voltage, 133 MHz maximum clock frequency, and 5.5 ns access time. It supports independent read/write operations on both ports simultaneously and is used in high-speed networking packet buffering, real-time DSP data exchange, and FPGA co-processor memory interfacing.

For engineers reviewing the CY7C0832BV-133AI datasheet, CY7C0832BV-133AI pinout, CY7C0832BV-133AI application, or CY7C0832BV-133AI equivalent, this device delivers deterministic dual-port timing, bus contention arbitration via BUSY flag, and industrial temperature operation (–40°C to +85°C) for deterministic embedded memory subsystems.

Technical Context

This SRAM implements true dual-port architecture with separate address, data, and control buses for Port A and Port B - enabling concurrent access without internal arbitration delay. Each port has independent chip select (CE), output enable (OE), and write enable (WE) signals, plus dedicated BUSY outputs to detect inter-port write conflicts.

It uses synchronous interface timing with registered address/data/control inputs aligned to rising CLK edges. The device supports byte-wide write masking (UB/LB) per port and includes power-down mode reducing ICC to 50 µA, making it suitable for low-latency, low-power buffer applications in telecom line cards and test equipment.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV3218BLL-133TQLI and AS7C3218B-133JCIN, CY7C0832BV-133AI uniquely integrates hardware-based BUSY arbitration and fully registered synchronous timing - delivering guaranteed data integrity and deterministic latency in multi-master memory systems without added logic or software overhead.

Availability

CY7C0832BV-133AI is available at Aetrix Electronics and suitable for telecom infrastructure, DSP acceleration, FPGA prototyping, and automated test equipment requiring stable component supply and long-term industrial-grade availability.

Supply support for CY7C0832BV-133AI 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 high-performance memory products, with global R&D and manufacturing infrastructure.

CY7C0832BV-133AI belongs to Infineon's legacy Cypress synchronous dual-port SRAM product line, designed specifically for deterministic, low-latency memory sharing between heterogeneous processors, FPGAs, and ASICs in communications and industrial control systems.

FAQ

What is the minimum setup/hold time for address inputs relative to CLKA?

The CY7C0832BV-133AI requires 2.5 ns address setup time and 1.5 ns hold time before and after the rising edge of CLKA, respectively. These values are specified under worst-case conditions (VDD = 3.0 V, TA = +85°C) and must be met to ensure reliable address latching and avoid metastability-induced read errors.

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

Yes - CLKA and CLKB are fully independent inputs. The device supports asynchronous clock domains, allowing Port A to run at 133 MHz while Port B runs at 66 MHz or any other supported frequency, provided each port meets its own timing specifications for setup, hold, and pulse width.

Does the BUSY flag assert for read–write conflicts on the same address?

No - BUSY asserts only for write–write conflicts on identical addresses. Read operations on either port never trigger BUSY, even when a write is occurring to the same location, because reads do not modify memory content and are inherently non-destructive in this architecture.

Is the CY7C0832BV-133AI pin-compatible with earlier CY7C0832V versions?

No - CY7C0832BV-133AI uses a 100-pin TQFP package with updated pin assignments for enhanced noise immunity and power distribution. Earlier CY7C0832V variants use 100-pin PQFP with different power/ground pin layouts and lack BUSY flag pins, making them mechanically and electrically incompatible.