Infineon Technologies CY7C1513AV18-200BZI

Overview

CY7C1513AV18 from Cypress Semiconductor is a 4M × 18-bit (72-Mbit), 1.8V QDR-II SRAM with separate read/write ports, 300 MHz clock support, DDR interfaces on both ports (600 MHz data rate), and 165-ball FBGA package. It delivers concurrent high-bandwidth memory access for network packet buffering in telecom line cards.

For engineers reviewing the CY7C1513AV18 datasheet, CY7C1513AV18 pinout, CY7C1513AV18 application, or CY7C1513AV18 equivalent, key selection criteria include burst depth (4-word), DLL-enabled 1.5-cycle read latency, HSTL-18 I/O compatibility, and dual-clock timing control (K/K and C/C) for skew management in multi-device parallel memory systems.

Technical Context

The CY7C1513AV18 implements QDR-II architecture with fully independent synchronous read and write ports sharing a multiplexed 20-bit address bus. Address latching occurs on alternating rising edges of K and K clocks, enabling pipelined 4-word burst transfers without bus turnaround.

It uses two dedicated clock domains: K/K for address/data input synchronization and C/C for output timing, with echo clocks CQ/CQ referenced to C/C to simplify high-speed capture at the controller. The internal Delay Lock Loop (DLL) enables precise 1.5-cycle read latency when enabled, or reverts to QDR-I 1-cycle latency with DOFF asserted.

Key Specifications

Pinout & Package

Package: 165-ball Fine-Pitch Ball Grid Array (FBGA), 15 mm × 17 mm × 1.4 mm body, 0.8 mm ball pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72T3615L10PA and IS61WV102418B, the CY7C1513AV18 uniquely delivers 300 MHz QDR-II concurrency, DLL-controlled latency, and echo-clock–assisted capture-making it irreplaceable for deterministic, high-throughput packet buffering where timing closure and bandwidth density are primary constraints.

Availability

CY7C1513AV18 is available at Aetrix Electronics and suitable for network infrastructure, telecom line card, and high-speed test equipment requiring stable component supply, long-lifecycle assurance, and Pb-free compliance.

Supply support for CY7C1513AV18 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.

The QDR-II SRAM product line-including CY7C1513AV18-is engineered specifically for deterministic, low-latency, full-duplex memory access in packet-switched networking and real-time signal processing systems.

FAQ

What is the function of the DOFF pin on CY7C1513AV18?

The DOFF (DLL Turn Off) pin is an active-low control that disables the internal Delay Lock Loop. When pulled low, the device operates in QDR-I mode with 1-cycle read latency and reduced maximum frequency (167 MHz). For standard QDR-II operation at 300 MHz with 1.5-cycle latency, DOFF must be tied high via ≤10 kΩ pull-up to VDDQ.

Can CY7C1513AV18 operate with only a single clock (K) instead of differential K/K?

Yes-CY7C1513AV18 supports single-clock mode where K serves as both positive and negative input clock (K = K). In this configuration, C and C must also be tied together, and CQ/CQ derive from K. However, differential clocking is strongly recommended for 300 MHz operation to minimize jitter and improve timing margin.

How does the ZQ pin affect output drive strength and signal integrity?

The ZQ pin connects to an external resistor (typically 100 Ω to ground) to calibrate the output driver impedance of Q[17:0], CQ, and CQ to ~20 Ω (0.2 × RQ). This matches standard 50 Ω transmission lines when using series source termination, reducing reflections and improving eye diagram margins at 600 MT/s.

What is the purpose of BWS[1:0] in CY7C1513AV18's write operation?

BWS[1:0] are active-low byte write select signals that enable partial-word writes: BWS0 controls D[8:0] and BWS1 controls D[17:9]. When either is deasserted, the corresponding 9-bit byte is ignored during the write cycle, preserving existing data in those bits-eliminating need for read-modify-write sequences in protocol header updates.