Infineon Technologies CY7C1425AV18-200BZC

Overview

CY7C1425AV18-200BZC from Cypress Semiconductor is a 4M × 9 (36-Mbit) QDR-II™ SRAM with dual independent read/write ports, 200 MHz clock operation (500 Mbps DDR data rate), 1.8V core supply, and HSTL-compatible I/O. It delivers concurrent burst reads/writes in networking packet buffers, high-speed test equipment memory controllers, and FPGA co-processor caches.

For engineers reviewing the CY7C1425AV18-200BZC datasheet, CY7C1425AV18-200BZC pinout, CY7C1425AV18-200BZC application, or CY7C1425AV18-200BZC equivalent, key selection criteria include its 2-word burst architecture, echo-clock–assisted data capture, DLL-enabled timing accuracy, and 165-ball FBGA package compatibility with high-density PCB layouts.

Technical Context

The device implements a synchronous pipelined QDR-II architecture with physically separate read and write data paths-Q[8:0] outputs and D[8:0] inputs-eliminating bus turnaround overhead. Address latching occurs on rising edges of dedicated K (read) and K (write) clocks, while output data is synchronized to C/C clocks for skew mitigation.

It integrates a Delay Lock Loop (DLL) for precise internal timing alignment, supports JTAG 1149.1 boundary scan, and uses VREF-referenced HSTL I/O with programmable drive strength. Write operations are self-timed and fully synchronous, with byte-level write select (BWS0) enabling partial writes without read-modify-write cycles.

Key Specifications

Pinout & Package

165-ball Fine-Pitch Ball Grid Array (FBGA), 15 mm × 17 mm footprint, 1.4 mm height, 0.8 mm ball pitch. Designed for high-speed signal integrity with dedicated power/ground ball distribution and impedance-controlled routing support.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-bandwidth dual-port SRAM applications.

Compared with IDT72T36120L10BG and IS61WV102418B, CY7C1425AV18-200BZC uniquely delivers 500 Mbps DDR bandwidth at 1.8V with integrated DLL and echo clocks-making it the only choice for new designs targeting ≥200 MHz sustained dual-port throughput without external timing compensation.

Availability

CY7C1425AV18-200BZC is available at Aetrix Electronics and suitable for high-speed packet buffering, FPGA co-processor caching, and automated test equipment requiring stable component supply and long-term obsolescence management.

Supply support for CY7C1425AV18-200BZC 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 connectivity solutions for industrial, automotive, and communications markets.

CY7C1425AV18 belongs to the QDR-II SRAM product line, engineered specifically for applications demanding deterministic low-latency memory access with concurrent read/write capability-targeting network infrastructure, test instrumentation, and real-time signal processing.

FAQ

What is the minimum supported VDDQ voltage for CY7C1425AV18-200BZC?

The device supports VDDQ from 1.4 V to 1.8 V. Operation below 1.4 V is not guaranteed-HSTL I/O thresholds and drive strength degrade outside this range, risking setup/hold violations at 200 MHz. Designers must maintain VDDQ ≥1.4 V and use VREF = 0.9 V for proper input switching point calibration.

Can CY7C1425AV18-200BZC operate without the DLL enabled?

Yes-connecting DOFF to ground disables the DLL, reverting to fixed internal delays. However, AC timing parameters change significantly: tAC increases by up to 1.8 ns, and CQ/CQ phase relationship becomes uncontrolled. This mode is only recommended for prototype validation-not production use.

How does BWS0 function in CY7C1425AV18-200BZC compared to NWS signals in CY7C1410AV18?

BWS0 controls all 9 bits of D[8:0] as a single byte-select signal-unlike CY7C1410AV18's NWS0/NWS1 which target nibbles. Deasserting BWS0 blocks the entire 9-bit write; there is no sub-byte granularity. This simplifies control logic but requires full-word writes when parity bits are updated alongside data.

Is the 165-ball FBGA package of CY7C1425AV18-200BZC compatible with standard reflow profiles?

Yes-the package complies with IPC/JEDEC J-STD-020D moisture sensitivity level 3 and supports peak reflow temperatures up to 260°C. Recommended profile includes ramp-to-peak ≤3°C/s, time above 217°C of 60–150 s, and peak temperature of 235–245°C for lead-free assembly.