Cypress Semiconductor Corp CY7C1613KV18-333BZXC

Overview

CY7C1613KV18-333BZXC from Cypress Semiconductor is a 144-Mbit QDR® II SRAM with 8 M × 18 organization, 333 MHz clock frequency, 1.8 V core supply, and 1.4–1.8 V I/O supply. It features separate read/write ports, four-word burst architecture, and DDR interfaces on both ports enabling 666 MT/s data transfer. Used in high-bandwidth networking buffers and packet forwarding engines where deterministic latency and concurrent access are critical.

For engineers reviewing the CY7C1613KV18-333BZXC datasheet, CY7C1613KV18-333BZXC pinout, CY7C1613KV18-333BZXC application, or CY7C1613KV18-333BZXC equivalent, this page delivers verified timing parameters, FBGA-165 package mapping, echo clock implementation guidance, and depth-expansion port select logic for system-level integration.

Technical Context

The device implements true dual-port QDR II architecture with independent K/K input clocks for address/data capture and C/C output clocks for data launch-enabling precise DDR timing without bus turnaround. Its 1.5-cycle read latency (DOFF = high) or 1-cycle latency (DOFF = low) is managed via synchronous internal pipelining and PLL-controlled data placement.

All inputs are registered on rising edges of K/K; outputs are edge-aligned to C/C with echo clocks CQ/CQ referenced to those outputs. Byte write selects BWS[1:0] control D[8:0] and D[17:9] independently, supporting partial writes without read-modify-write cycles.

Key Specifications

Pinout & Package

Package: 165-ball fine-pitch ball grid array (FBGA), 15 mm × 17 mm × 1.4 mm, RoHS-compliant, Pb-free option available.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar QDR II SRAM applications.

Compared with IDT72T3615L5 and IS61WV102418B, CY7C1613KV18-333BZXC uniquely combines HSTL compatibility, echo-clock–assisted timing closure, and runtime-selectable latency-making it optimal for FPGA-based networking platforms requiring pin- and timing-compatible upgrades from QDR I.

Availability

CY7C1613KV18-333BZXC is available at Aetrix Electronics and suitable for network packet buffering, switch fabric memory, and telecom baseband processing requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for CY7C1613KV18-333BZXC 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.

CY7C1613KV18 belongs to Cypress's QDR II SRAM product line, engineered specifically for high-throughput, low-latency data buffering in packet-switched networks and real-time signal processing systems.

FAQ

What is the function of the DOFF pin on CY7C1613KV18-333BZXC?

The DOFF (Data Output OFFset) pin selects read latency mode: when tied high, the device operates in QDR II mode with 1.5-cycle read latency; when tied low or to VSS, it reverts to QDR I mode with 1-cycle latency. This pin directly controls internal pipeline staging and does not affect write timing or burst length.

Can CY7C1613KV18-333BZXC operate with only a single clock domain?

Yes. When K and C are driven by the same source (and K and C grounded or unused), the device enters single-clock mode. In this mode, data is latched on K and launched on C, with CQ generated relative to K. All timing parameters shift accordingly, and echo clock deskew capability is lost.

How is output impedance calibrated using the ZQ pin?

ZQ connects to an external precision resistor (RQ) to ground; the device measures RQ and configures its Q[17:0], CQ, and CQ output drivers to 0.2 × RQ. If RQ = 240 Ω, outputs are tuned to 48 Ω. Connecting ZQ directly to VDDQ enables minimum-impedance mode (~24 Ω), but grounding or leaving it floating is prohibited.

What is the role of BWS[1:0] during a write operation?

BWS0 controls write enable for D[8:0]; BWS1 controls D[17:9]. Both are sampled on the same K/K edge as data. When BWS0 is high, D[8:0] is ignored and unchanged; when low, those bits are written. This enables byte-granular updates without read-modify-write sequences, preserving data coherency.