Infineon Technologies CY7C1470BV33-167AXCT

Overview

CY7C1470BV33 from Cypress Semiconductor is a 72-Mbit (2M × 36) pipelined synchronous SRAM with NoBL™ architecture, designed for high-throughput memory subsystems in networking and telecom line cards. It supports 167 MHz bus operation with zero wait states, features fully registered inputs/outputs, single 3.3 V core supply, and 3.3 V/2.5 V I/O compatibility. Its 100-pin TQFP package enables dense PCB layouts in backplane interface buffers.

For engineers reviewing the CY7C1470BV33 datasheet, CY7C1470BV33 pinout, CY7C1470BV33 application, or CY7C1470BV33 equivalent, key selection criteria include burst read/write timing compliance, byte-write granularity (BWa–BWd), synchronous OE masking behavior, and ZZ sleep mode current (120 mA standby).

Technical Context

The CY7C1470BV33 implements a fully synchronous, clocked pipeline with all address, control, and data signals registered on the rising edge of CLK. Its NoBL™ logic eliminates bus latency by enabling true back-to-back read/write operations without wait states, using internal self-timed output buffer control instead of asynchronous OE gating.

Burst capability supports both linear and interleaved orders, with ADV/LD controlling address counter advancement or new address loading. Write operations are synchronized via WE and qualified by CEN, while three chip enables (CE1 low, CE2 high, CE3 low) provide flexible bank selection in multi-SRAM systems.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), JEDEC-standard Pb-free compliant, with 0.5 mm lead pitch and exposed thermal pad.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L15PF and IS61WV204836BLL-167TQLI, the CY7C1470BV33 uniquely combines ZZ sleep mode, dual-voltage I/O (VDDQ), and IEEE 1149.1 JTAG-enabling lower system power, broader FPGA interface compatibility, and production testability in telecom infrastructure.

Availability

CY7C1470BV33 is available at Aetrix Electronics and suitable for network line card buffers, telecom packet switching, base station baseband processing, and industrial real-time controllers requiring stable component supply across extended product lifecycles.

Supply support for CY7C1470BV33 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

Cypress Semiconductor (now part of Infineon Technologies) is a U.S.-based semiconductor company specializing in high-performance memory, microcontrollers, and programmable logic solutions for communications and industrial markets.

The CY7C1470BV33 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for zero-latency, high-bandwidth memory subsystems in carrier-grade networking equipment and real-time signal processing platforms.

FAQ

What is the function of the ADV/LD pin in burst operations?

The ADV/LD pin controls the internal address counter: when HIGH and CEN is active, it advances the counter for sequential burst access; when LOW, it loads a new starting address from A[17:0]. This enables both continuous streaming and random-start burst modes without external address generation logic.

Does CY7C1470BV33 support 2.5 V-only I/O operation?

Yes - VDDQ can be independently supplied at 2.5 V while VDD remains at 3.3 V, allowing direct interfacing with 2.5 V FPGAs or ASICs without level shifters. The device maintains full timing specifications and drive strength under this mixed-supply condition per datasheet Section "AC Test Conditions".

How does the ZZ pin affect data retention during sleep mode?

The ZZ pin places the device in deep sleep, reducing ICC to <100 µA while preserving all stored data. Memory contents remain valid as long as VDD and VDDQ are maintained above 2.0 V; no refresh or external intervention is required during ZZ assertion.

Can CY7C1470BV33 be used as a drop-in replacement for ZBT™ SRAMs?

Yes - it is pin-compatible and functionally equivalent to ZBT devices such as IDT72V2115, supporting identical control protocols, burst orders, and timing waveforms. No PCB or firmware changes are needed beyond verifying VDDQ voltage settings and confirming ZZ pin handling in the system power manager.