Cypress Semiconductor Corp CY7C1413AV18-200BZC

Overview

CY7C1413AV18 from Cypress Semiconductor is a 36-Mbit QDR-II SRAM with 2M × 18 organization, 1.8V core supply, and dual DDR interfaces supporting 300 MHz operation (600 MT/s data rate). It features separate read/write ports, echo clocks (CQ/CQ), and JTAG 1149.1 test access - deployed in high-speed packet buffering for network switches and routers.

For engineers reviewing the CY7C1413AV18 datasheet, CY7C1413AV18 pinout, CY7C1413AV18 application, or CY7C1413AV18 equivalent, key selection criteria include burst depth (4-word), HSTL-18 I/O compatibility, DLL-enabled timing accuracy, and FBGA-165 package thermal/mechanical constraints in multi-chip memory subsystems.

Technical Context

The device implements synchronous pipelined QDR-II architecture with independent read and write ports sharing a multiplexed address bus. Address latching occurs on alternate rising edges of K/K clocks, enabling concurrent access without bus turnaround.

Read data is clocked out via C/C with synchronized echo clocks (CQ/CQ) to compensate for flight-time skew; writes use self-timed internal circuitry with BWS[1:0] byte-select control for partial-word updates in 18-bit-wide transfers.

Key Specifications

Pinout & Package

165-ball Fine-Pitch Ball Grid Array (FBGA) package, 15 mm × 17 mm × 1.4 mm body height, 0.8 mm ball pitch, Pb-free and RoHS-compliant options available.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1415AV18, this part trades data width for depth (2M×18 vs. 1M×36), better matching 18-bit bus architectures; versus AS7C336200B-20BIN, it delivers +50% bandwidth at higher voltage and tighter timing control, suited for performance-critical networking.

Availability

CY7C1413AV18 is available at Aetrix Electronics and suitable for network switch buffering, telecom line card design, and FPGA-based protocol acceleration requiring stable component supply across extended product lifecycles.

Supply support for CY7C1413AV18 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, industrial, and automotive markets.

This device belongs to the QDR-II SRAM product line, engineered specifically for deterministic, low-latency, full-duplex memory access in packet-switched infrastructure and high-speed test systems.

FAQ

What is the function of the ZQ pin on CY7C1413AV18?

The ZQ pin calibrates output driver impedance for Q[17:0], CQ, and CQ signals. It must be connected to a precision resistor (typically 240 Ω) to ground to set output impedance to 0.2 × RQ. Direct connection to VDDQ enables minimum impedance mode; floating or grounding ZQ is prohibited and causes undefined drive strength.

Can CY7C1413AV18 operate without the DLL enabled?

Yes - asserting DOFF LOW disables the internal DLL. However, timing parameters change significantly: tAC increases by up to 1.2 ns, and tCO becomes clock-edge dependent rather than DLL-aligned. This mode is intended only for backward compatibility or specific legacy timing constraints, not for 300 MHz operation.

How does the 4-word burst affect address sequencing in CY7C1413AV18?

Each read or write access automatically increments the internal address counter over four consecutive locations. Only one base address is presented on A[18:0]; the device internally generates the next three addresses. This reduces address bus toggling frequency by 75% and simplifies controller logic for sequential access patterns typical in packet buffering.

What is the role of BWS[1:0] in partial-write operations?

BWS[1:0] controls two 9-bit subwords of the 18-bit D[17:0] bus. BWS0 enables D[8:0], BWS1 enables D[17:9]. When either is deasserted (HIGH), the corresponding 9-bit segment is ignored during write, preserving existing memory contents in those bits - essential for updating packet headers without overwriting payload data.