Infineon Technologies CY7C1474BV25-200BGC

Overview

CY7C1474BV25-200BGC from Cypress Semiconductor is a 72-Mbit (1M × 72) synchronous pipelined SRAM with NoBL™ architecture, designed for high-throughput memory buffering in network packet processors and FPGA co-processor interfaces. It operates at 200 MHz with zero wait states, supports synchronous self-timed writes, features 8-byte write select (BWa–BWh), and uses a single 2.5V core supply with separate 2.5V I/O supply (VDDQ).

For engineers reviewing the CY7C1474BV25-200BGC datasheet, CY7C1474BV25-200BGC pinout, CY7C1474BV25-200BGC application, or CY7C1474BV25-200BGC equivalent, key selection criteria include burst order configuration (linear/interleaved via MODE pin), JTAG boundary scan support, 209-ball FBGA package compatibility, and synchronous tri-state control during write data cycles.

Technical Context

This SRAM implements fully registered pipelined operation: all address, control, and data inputs are latched on the rising edge of CLK, and all outputs pass through output registers synchronized to CLK. The internal burst counter supports linear or interleaved burst orders, selected by the MODE strap pin, and advances on ADV/LD HIGH while maintaining address coherence across back-to-back accesses.

Write operations are controlled by WE and eight independent byte-write enables (BWa–BWh), each gating corresponding DQ/DQP pairs. Output drivers are synchronously tri-stated during the data portion of write sequences-regardless of OE state-to prevent bus contention, and OE remains asynchronous for flexible output control timing.

Key Specifications

Pinout & Package

Package: 209-ball FBGA (14 mm × 22 mm × 1.76 mm, ball pitch 1.0 mm), Pb-free and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1472BV25-200BAXI and AS7C3256B-20JC, the CY7C1474BV25-200BGC uniquely delivers 72-bit-wide pipelined burst access with JTAG testability and per-byte write control - essential for next-generation packet processing and FPGA acceleration platforms.

Availability

CY7C1474BV25-200BGC is available at Aetrix Electronics and suitable for network infrastructure, FPGA acceleration, telecom baseband, and industrial real-time control applications requiring stable component supply and long-term obsolescence management.

Supply support for CY7C1474BV25-200BGC 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) designs high-performance memory and programmable solutions for communications, automotive, and industrial systems, with headquarters in San Jose, CA.

The CY7C147xBV25 family targets high-speed, low-latency memory subsystems in packet-switched networks and FPGA-based accelerators - emphasizing deterministic timing, burst efficiency, and system-level testability.

FAQ

What is the function of the MODE pin on CY7C1474BV25-200BGC?

The MODE pin is a static strap input that selects burst address order: pulled HIGH (or left floating) enables interleaved burst mode; pulled LOW enables linear burst mode. It must remain stable before and during device operation, as changing MODE mid-burst causes undefined address sequencing and potential data corruption.

How does the ZZ (Sleep) pin interact with clock and data retention?

The ZZ pin is asynchronous and forces the device into low-power sleep mode, reducing ICC to ≤120 mA while retaining all stored data. Core clocks and I/O are gated, but memory array contents remain intact. Wake-up occurs within one CLK cycle after ZZ is deasserted, with no initialization sequence required.

Can CY7C1474BV25-200BGC be used with a 3.3V interface?

No. This device requires VDDQ = 2.5 V ± 0.2 V for I/O signaling and is not 3.3V-tolerant. Connecting to a 3.3V bus without level translation will exceed absolute maximum ratings and cause permanent damage. Use dedicated 2.5V bus termination and compatible 2.5V logic families.

What happens to DQ outputs during a write cycle when OE is asserted?

DQ outputs are synchronously tri-stated during the data portion of every write cycle - regardless of OE state - to prevent bus contention. This behavior is hardwired in the NoBL architecture and cannot be overridden. OE only affects output driver state during read cycles and idle periods.