Infineon Technologies CY7C1474BV33-200BGCT

Overview

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

For engineers reviewing the CY7C1474BV33-200BGCT datasheet, CY7C1474BV33-200BGCT pinout, CY7C1474BV33-200BGCT application, or CY7C1474BV33-200BGCT equivalent, key selection criteria include burst mode support (linear/interleaved), ZZ sleep mode capability, IEEE 1149.1 JTAG boundary scan compliance, and 209-ball FBGA package thermal performance in backplane interface designs.

Technical Context

This SRAM implements fully registered pipelined operation: all address, control, and data inputs pass through input registers on the rising edge of CLK; all outputs are clocked through output registers synchronized to CLK. The internal burst logic and address counter enable continuous linear or interleaved burst reads/writes without bus latency.

NoBL™ architecture eliminates asynchronous output enable timing constraints by using internally self-timed output buffer control. Write operations are managed by synchronous byte write enables (BWSa–BWSh) and WE, with on-chip self-timed write circuitry ensuring deterministic setup/hold margins across voltage and temperature.

Key Specifications

Pinout & Package

Package: 209-ball Fine-Pitch Ball Grid Array (FBGA), 14 mm × 22 mm × 1.76 mm, RoHS-compliant, with perimeter I/O and central power/ground ball array optimized for signal integrity and thermal dissipation.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2135L10PF and IS61WV102472BLL-200B3, CY7C1474BV33-200BGCT uniquely combines 200 MHz operation, full 72-bit parity, and JTAG in a 209-ball FBGA-making it the only option meeting carrier-class reliability and testability requirements at full speed.

Availability

CY7C1474BV33-200BGCT is available at Aetrix Electronics and suitable for telecom line cards, network processor buffers, switch fabric controllers, and base station baseband units requiring stable component supply across extended product lifecycles.

Supply support for CY7C1474BV33-200BGCT 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, microcontrollers, and programmable solutions for communications and industrial markets.

CY7C1474BV33 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for zero-latency, high-bandwidth data buffering in telecom infrastructure and high-end networking equipment.

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 base address from A[17:0]. After device deselection, ADV/LD must be driven LOW before the next access to ensure correct address initialization and avoid burst wraparound errors.

Does CY7C1474BV33-200BGCT support both linear and interleaved burst modes?

Yes - burst order is selected by the MODE pin: MODE = LOW configures linear burst (incrementing address), MODE = HIGH selects interleaved burst (bit-swapped address sequence). This matches legacy ZBT SRAM behavior and aligns with network processor DMA engine requirements for cache-line-aligned transfers.

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

In ZZ mode, core power is gated while VDD remains applied; data is retained indefinitely as long as VDD ≥ 2.7 V. Wake-up latency is one clock cycle after ZZ deassertion - no refresh or reinitialization is needed, enabling sub-microsecond resumption of full-speed operation in burst-intensive traffic patterns.

Are the DQP pins dedicated to parity, or can they be used as general-purpose I/O?

DQP pins (DQPa–DQPh) are hardwired parity outputs tied to their corresponding DQ byte groups and cannot be repurposed. During write cycles, parity is generated internally; during reads, DQP pins deliver computed parity bits - essential for ECC implementations in telecom control plane memory subsystems.