Cypress Semiconductor Corp CY7C1413KV18-250BZC

Overview

CY7C1413KV18-250BZC from Cypress Semiconductor is a 2 M × 18, 36-Mbit QDR® II SRAM with four-word burst architecture, 250 MHz maximum operating frequency (400 Mbps per pin), 1.8 V core supply, and 1.4–1.8 V I/O supply. It features separate read/write ports, echo clocks (CQ/CQ), and programmable DOFF for 1-cycle or 1.5-cycle read latency-used in high-bandwidth packet buffering for network switches and routers.

For engineers reviewing the CY7C1413KV18-250BZC datasheet, CY7C1413KV18-250BZC pinout, CY7C1413KV18-250BZC application, or CY7C1413KV18-250BZC equivalent, key selection criteria include DDR timing compliance, FBGA-165 package compatibility, QDR-II-specific control logic (WPS/RPS/BWS), and 1.5-cycle latency configuration via DOFF.

Technical Context

The device implements true dual-port synchronous pipelined access with independent K/K input clocks for address/data capture and C/C output clocks for data launch-enabling concurrent read and write operations without bus turnaround. Its internal 512K × 18 array organization uses multiplexed address latching on alternating K-clock edges to support depth expansion via RPS/WPS signals.

It integrates a PLL for precise data-eye alignment, HSTL-class variable-drive output buffers, IEEE 1149.1 JTAG boundary-scan, and programmable impedance calibration (ZQ). The DOFF pin selects between QDR-I–compatible 1-cycle latency (LOW) and optimized QDR-II 1.5-cycle latency (HIGH), directly affecting system timing margin.

Key Specifications

Pinout & Package

Package: 165-ball Fine-Pitch Ball Grid Array (FBGA), 13 mm × 15 mm body, 0.8 mm ball pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1413KV18-300BZC, the -250BZC trades 50 MHz bandwidth for relaxed timing closure and lower power; versus AS7C33618A-250BIN, it delivers true dual-port concurrency and deterministic latency control-critical for real-time packet buffering.

Availability

CY7C1413KV18-250BZC is available at Aetrix Electronics and suitable for network infrastructure, test instrumentation, wireless baseband, and FPGA-accelerated computing applications requiring stable component supply and long-term obsolescence management.

Supply support for CY7C1413KV18-250BZC 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 networking, automotive, and industrial systems, with emphasis on signal integrity and timing precision.

This device belongs to Cypress' QDR-II SRAM product line, engineered specifically for deterministic, low-latency, high-bandwidth memory interfacing in packet-switched and real-time signal processing systems.

FAQ

What is the function of the DOFF pin on CY7C1413KV18-250BZC?

The DOFF (Data Output Fall-off) pin configures read latency mode: when asserted HIGH, it enables 1.5-cycle latency for optimized QDR-II operation; when LOW, it reverts to 1-cycle latency compatible with legacy QDR-I timing. This setting directly impacts minimum tAA (address-to-data valid) and tRC (read cycle time) specifications and must be fixed at power-up.

Can CY7C1413KV18-250BZC operate with only a single clock domain?

Yes - the device supports single-clock mode where K and C are tied together (and K and C likewise), eliminating need for separate input/output clock pairs. In this mode, data is launched and captured on the same clock edges, simplifying clock tree design at the cost of reduced timing margin compared to dual-clock operation.

How does the ZQ pin function during system operation?

ZQ connects to an external 240 Ω resistor to ground and enables on-die impedance calibration of HSTL output drivers. Calibration occurs automatically at power-up and can be triggered manually via JTAG. It compensates for voltage/temperature drift to maintain consistent 25 Ω or 50 Ω driver impedance, ensuring signal integrity across process corners.

Is CY7C1413KV18-250BZC pin-compatible with other devices in the CY7C14xxKV18 family?

Yes - all members (CY7C1411KV18, CY7C1426KV18, CY7C1413KV18, CY7C1415KV18) share the identical 165-ball FBGA package and pinout. Address width, data width, and BWS signal count differ per density, but physical layout, power/ground, clock, and control pins are fully aligned for drop-in replacement within the same package variant.