Infineon Technologies CY7C1472V33-200AXCT

Overview

CY7C1472V33 from Infineon Technologies (formerly Cypress) is a 72-Mbit synchronous pipelined SRAM with NoBL™ architecture, configured as 2M × 36 or 4M × 18, operating at 200 MHz with zero wait states. It features fully registered I/O, byte write capability (BWa–BWb), 3.3 V core supply, and 3.3 V/2.5 V I/O support. Used in high-throughput packet buffering and network switch fabric control planes where deterministic latency and back-to-back read/write transitions are critical.

For engineers reviewing the CY7C1472V33 datasheet, CY7C1472V33 pinout, CY7C1472V33 application, or CY7C1472V33 equivalent, key selection criteria include clock-to-output timing (3.0 ns), burst mode support (linear/interleaved), ZZ sleep mode implementation, and TQFP-100 package compatibility with legacy ZBT designs.

Technical Context

This SRAM implements a synchronous, fully registered pipeline: all address, control, and data signals pass through input registers on the rising CLK edge; outputs are latched on the same edge. Internal self-timed output buffer control eliminates asynchronous OE dependency, enabling deterministic bus timing.

The device supports burst reads/writes with ADV/LD-controlled addressing and includes three chip enables (CE1–CE3) for bank selection, plus CEN for clock suspension. Byte write select logic (BWa/BWb) enables independent 18-bit word writes in 2M × 36 mode or 36-bit writes in 4M × 18 mode.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L10PF and IS61WV102432BLL-10TLI, CY7C1472V33 delivers 2× higher bandwidth, integrated burst control, and active power management - making it uniquely suited for infrastructure-grade packet processing where latency predictability and throughput density are non-negotiable.

Availability

CY7C1472V33 is available at Aetrix Electronics and suitable for network switch fabric buffering, telecom line card control memory, and industrial PLC data logging requiring stable component supply and long-term lifecycle support.

Supply support for CY7C1472V33 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 acquired Cypress Semiconductor in 2020 and maintains its high-performance memory portfolio, focusing on automotive, industrial, and communications infrastructure solutions.

CY7C1472V33 belongs to the NoBL™ SRAM product line, designed specifically for deterministic, low-latency memory subsystems in networking ASICs, baseband processors, and real-time control systems demanding zero-wait-state performance.

FAQ

What is the function of the ADV/LD pin on CY7C1472V33?

The ADV/LD pin controls burst address generation: during reads, it advances the internal address counter; during writes, it loads a new starting address. This dual-mode operation enables seamless linear or interleaved burst sequences without external address management logic, directly supporting processor cache-line fetch patterns.

How does the ZZ pin operate, and what is the errata requirement?

The ZZ pin places the device in deep power-down mode when asserted low. Per Errata on page 35 of Rev. *Y datasheet, Pin 64 (ZZ) must be externally tied to ground - it is not internally pulled down. Failure to do so may cause undefined sleep behavior or increased standby current beyond the rated 120 mA maximum.

Can CY7C1472V33 operate with 2.5 V I/O while using 3.3 V core supply?

Yes. The device supports independent VDDQ (I/O) supply ranging from 2.5 V to 3.3 V while VDD (core) remains fixed at 3.3 V ±0.3 V. This allows direct interfacing with 2.5 V FPGAs or ASICs without level shifters, provided VDDQ stability and noise margins meet AC timing requirements for setup/hold at 200 MHz.

Is CY7C1472V33 pin-compatible with ZBT SRAMs?

Yes - it is explicitly designed as pin-compatible and functionally equivalent to industry-standard ZBT SRAMs (e.g., IDT72V2115). This includes identical pin assignments for CLK, CEN, CE1–CE3, WE, BWa/BWb, DQa/DQb, and ADV/LD, enabling drop-in replacement in existing ZBT-based designs without PCB revision.