Infineon Technologies CY7C1354CV25-166AXC

Overview

CY7C1354CV25-166AXC from Infineon Technologies (formerly Cypress) is a 2.5 V, 256K × 36 pipelined synchronous SRAM with NoBL™ architecture, designed for high-throughput memory subsystems in network packet buffers and telecom line cards. It supports 166 MHz bus operation with zero wait states, 3.5 ns maximum access time, 180 mA max operating current, and features fully registered I/O, byte write capability, and JTAG boundary scan.

For engineers reviewing the CY7C1354CV25-166AXC datasheet, CY7C1354CV25-166AXC pinout, CY7C1354CV25-166AXC application, or CY7C1354CV25-166AXC equivalent, key selection criteria include burst mode support (linear/interleaved), synchronous self-timed writes, clock enable (CEN) control, ZZ sleep mode, and compatibility with ZBT™-based system designs.

Technical Context

This SRAM implements a true pipelined read/write architecture using rising-edge-triggered input and output registers, enabling back-to-back operations without latency penalties. Its NoBL™ logic eliminates bus turnaround delays by synchronizing all address, data, and control signals to CLK, while internal self-timed output buffer control removes dependency on asynchronous OE timing.

The device supports two burst orders (linear and interleaved), three chip enables (CE1–CE3) for bank selection, four byte write enables (BWa–BWd), and IEEE 1149.1 JTAG boundary scan for system-level testability. Sleep mode (ZZ) and stop-clock operation reduce power during idle cycles without losing data integrity.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), lead-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar pipelined SRAM applications.

Compared with IDT72V2115L166BG and IS61WV25636BLL-166TQLI, CY7C1354CV25-166AXC uniquely delivers ZBT™-compatible timing, integrated JTAG, and deep-sleep power management - making it optimal for telecom infrastructure upgrades where firmware reuse and thermal constraints are critical.

Availability

CY7C1354CV25-166AXC is available at Aetrix Electronics and suitable for network packet buffering, telecom line card memory, baseband processing cache, and industrial protocol gateway applications requiring stable component supply and long-term lifecycle support.

Supply support for CY7C1354CV25-166AXC 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 global semiconductor leader headquartered in Munich, Germany, specializing in power systems, automotive MCUs, and high-performance memory solutions.

CY7C1354CV25-166AXC belongs to Infineon's legacy Cypress SRAM product line, engineered specifically for high-speed, low-latency memory subsystems in carrier-grade networking and communications equipment.

FAQ

Is CY7C1354CV25-166AXC pin-compatible with ZBT™ devices?

Yes - it is explicitly designed as pin- and functionally compatible with industry-standard ZBT™ SRAMs such as the IDT72V2115 series. The pinout, timing behavior, and control signal definitions match ZBT™ specifications, allowing drop-in replacement in existing designs without PCB or firmware changes.

What is the purpose of the ADV/LD pin?

The ADV/LD (Address Valid/Load) pin controls burst address generation and qualifies address latching. When asserted, it signals the start of a burst sequence and loads the initial address into internal counters; its timing relationship with CLK determines burst order (linear or interleaved) based on MODE pin state.

Does CY7C1354CV25-166AXC support both linear and interleaved burst modes?

Yes - burst order is selected via the MODE pin: logic high configures linear burst addressing, logic low selects interleaved. This dual-mode capability ensures compatibility with diverse memory controllers, including those used in older telecom ASICs and newer FPGA-based packet processors.

Can the ZZ (sleep) mode be used during active system operation?

Yes - ZZ mode is fully synchronous and can be asserted between any two clock cycles without data loss or timing violation. When activated, it reduces ICC to <100 µA while preserving memory contents, making it ideal for dynamic power gating in burst-oriented traffic patterns like VoIP or video streaming buffers.