Cypress Semiconductor Corp CY7C1474BV33-200BGC

Overview

CY7C1474BV33-200BGC from Cypress Semiconductor is a 72-Mbit (1M × 72) synchronous pipelined SRAM with NoBL™ architecture, designed for high-throughput memory subsystems in networking and telecom line cards. It operates at 200 MHz with zero wait states, supports synchronous self-timed writes, features 8-byte write capability via BWSa–BWh pins, and uses a single 3.3 V core supply with 3.3 V/2.5 V I/O compatibility.

For engineers reviewing the CY7C1474BV33-200BGC datasheet, CY7C1474BV33-200BGC pinout, CY7C1474BV33-200BGC application, or CY7C1474BV33-200BGC equivalent, key selection criteria include burst mode support (linear/interleaved), ZZ sleep mode, IEEE 1149.1 JTAG boundary scan, and 209-ball FBGA package compatibility with high-density PCB layouts.

Technical Context

This SRAM implements fully registered synchronous operation: all address, control, and data inputs pass through input registers on the rising edge of CLK; all outputs are clocked through output registers on the same edge. The internal NoBL™ logic eliminates bus latency by enabling true back-to-back read/write cycles without wait states.

It supports three chip enables (CE1 active-low, CE2 active-high, CE3 active-low) for flexible bank decoding, asynchronous OE for output tri-state control, and synchronous CEN to suspend clock recognition without deselecting the device. Burst addressing is controlled by ADV/LD, supporting both linear and interleaved sequences per JEDEC standard.

Key Specifications

Pinout & Package

The CY7C1474BV33-200BGC is housed in a Pb-free 209-ball Fine-Pitch Ball Grid Array (FBGA) package measuring 14 mm × 22 mm × 1.76 mm, optimized for high-speed signal integrity and thermal dissipation in dense router/switch modules.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2123L15PF and IS61WV102472BLL-200B, the CY7C1474BV33-200BGC uniquely combines 72-Mbit density, 200 MHz performance, 2.5 V/3.3 V I/O adaptability, JTAG testability, and ZZ sleep - making it the only option meeting full telecom line card qualification requirements.

Availability

CY7C1474BV33-200BGC is available at Aetrix Electronics and suitable for packet buffering in switch ASIC interfaces, high-speed protocol accelerator memory, and telecom line card data buffers requiring stable component supply across multi-year production cycles.

Supply support for CY7C1474BV33-200BGC 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 fabless semiconductor company specializing in high-performance memory, PSoC programmable systems-on-chip, and USB/USB-C solutions for industrial and communications infrastructure.

The CY7C147x BV33 family was developed specifically for next-generation networking equipment demanding deterministic, zero-latency memory access - targeting switch fabric buffers, packet classification engines, and real-time traffic shapers.

FAQ

What is the function of the ADV/LD pin in CY7C1474BV33-200BGC?

The ADV/LD pin controls the internal burst counter: when HIGH (with CEN active), it advances the counter for sequential burst access; when LOW, it loads a new base address from A0–A17. This dual-mode operation enables both continuous streaming and random-access bursts without external address generation logic.

Does CY7C1474BV33-200BGC support 2.5 V I/O operation with 3.3 V core supply?

Yes - VDDQ is independently powered and accepts either 2.5 V or 3.3 V, while VDD remains at 3.3 V. This allows direct interfacing with 2.5 V FPGAs or ASICs without level shifters, provided VDDQ and VDD supplies are properly decoupled and sequenced during power-up.

How does the ZZ (Sleep) mode affect data retention and wake-up time?

In ZZ mode, the device enters ultra-low-power state with ≤120 mA current draw while retaining all stored data. Wake-up is synchronous: exiting ZZ requires deasserting ZZ and applying two valid CLK edges with CEN active; data becomes valid after tHZ (max 10 ns) from first post-ZZ CLK edge.

Can CY7C1474BV33-200BGC be used in linear burst mode with non-sequential addresses?

No - linear burst mode requires strictly sequential address increments (e.g., 0x000000, 0x000001, …). Non-sequential addresses must use single-access mode or interleaved burst (which follows a defined XOR-based pattern). Attempting linear burst with gaps causes undefined data output per the datasheet truth table.