Infineon Technologies CY7C1413AV18-250BZCT

Overview

CY7C1413AV18-250BZCT from Cypress Semiconductor is a 2M × 18-bit, 36-Mbit QDR-II SRAM with separate read/write ports, 250 MHz operation (400 ps clock period), DDR interfaces on both ports enabling 500 MT/s data rate, and 165-ball FBGA (15 × 17 × 1.4 mm) packaging. It delivers full data coherency and synchronous self-timed writes for high-speed packet buffering in network line cards.

For engineers reviewing the CY7C1413AV18-250BZCT datasheet, CY7C1413AV18-250BZCT pinout, CY7C1413AV18-250BZCT application, or CY7C1413AV18-250BZCT equivalent, key selection criteria include burst depth (4-word), HSTL I/O compatibility (VDDQ = 1.4–1.8 V), DLL-enabled timing accuracy, echo clock support (CQ/CQ), and JTAG 1149.1 test access.

Technical Context

The CY7C1413AV18-250BZCT implements QDR-II architecture with independent read and write data paths, eliminating bus turnaround overhead. Its dual-clock domain uses K/K for address/data capture and C/C for output timing, with echo clocks CQ/CQ referenced to C/C to compensate for board flight-time skew.

Internally organized as four 512K × 18 arrays, it supports synchronous depth expansion via RPS/WPS and byte write select (BWS[1:0]), latching all inputs on rising edges of K/K and driving outputs on rising edges of C/C. The integrated Delay Lock Loop (DLL) aligns internal timing to ±25 ps jitter tolerance at 250 MHz.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1413AV18-278BZCT and AS7C362000B-250BIN, the CY7C1413AV18-250BZCT offers optimal balance of timing margin, power efficiency (790 mA max), and echo-clock–assisted signal integrity - making it ideal for cost-sensitive, thermally constrained telecom and networking platforms.

Availability

CY7C1413AV18-250BZCT is available at Aetrix Electronics and suitable for network packet buffering, telecom line card memory, and baseband processing cache requiring stable component supply and long-term industrial lifecycle support.

Supply support for CY7C1413AV18-250BZCT 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 U.S.-based semiconductor company specializing in high-performance memory, microcontrollers, and programmable logic solutions for industrial, automotive, and communications markets.

The QDR-II SRAM product line was engineered specifically for deterministic, low-latency, high-throughput memory subsystems in packet-switched infrastructure - emphasizing concurrent access, timing predictability, and signal integrity at multi-Gbps rates.

FAQ

What is the function of the ZQ pin on CY7C1413AV18-250BZCT?

The ZQ pin is an impedance calibration input that connects to an external precision resistor (typically 240 Ω) to ground. It enables dynamic adjustment of the output driver impedance for Q[17:0], CQ, and CQ pins to match the system data bus, ensuring consistent signal integrity across voltage and temperature variations. It must never be left floating or tied directly to GND.

Can CY7C1413AV18-250BZCT operate in single-clock mode?

Yes - the device supports single-clock mode where K and C are tied together (and K and C tied together), simplifying clock routing. In this configuration, data is captured and driven using only the K/K pair, and echo clocks CQ/CQ are generated relative to K/K. Setup/hold timing margins tighten, requiring careful PCB layout and reduced trace length asymmetry.

How does the DOFF pin affect timing behavior?

Asserting DOFF (driving low) disables the internal Delay Lock Loop, reverting timing to fixed, process-corner–dependent values. This increases clock-to-output skew by up to 120 ps and invalidates all DLL-dependent AC specifications (e.g., tAC, tQV). Use only for debug or fail-safe modes - not for normal operation - and consult Table 13 (DLL Off Mode) in Rev. *D datasheet for revised parameters.

What is the purpose of BWS[1:0] in CY7C1413AV18-250BZCT?

BWS[1:0] are active-low byte write select signals that control which 9-bit half of the 18-bit D[17:0] bus is written during each burst cycle. BWS0 enables D[8:0], BWS1 enables D[17:9]. When both are deasserted, no data is written; when only one is asserted, only its corresponding byte is updated - preserving the other 9 bits in memory without requiring a read-modify-write sequence.