Infineon Technologies CY7C1414AV18-167BZC

Overview

CY7C1414AV18 from Cypress Semiconductor is a 1M × 36-bit (36-Mbit), 1.8V QDR-II™ synchronous SRAM with dual independent read/write ports, 250-MHz clock support, DDR interfaces on both ports (500-MHz data rate), and 165-ball FBGA (15 × 17 × 1.4 mm) packaging. It delivers full data coherency, synchronous self-timed writes, and echo clocks (CQ/CQ) for high-speed data capture in packet buffering applications.

For engineers reviewing the CY7C1414AV18 datasheet, CY7C1414AV18 pinout, CY7C1414AV18 application, or CY7C1414AV18 equivalent, this device is selected for high-bandwidth, low-latency memory subsystems requiring concurrent read/write operations without bus turnaround-especially in network line cards, FPGA-based accelerators, and telecom baseband processing where deterministic 2-word burst timing and HSTL-18 I/O compliance are critical.

Technical Context

The CY7C1414AV18 implements QDR-II architecture with physically separate read and write data paths, eliminating bus contention and turn-around delays. Its 19-bit address bus (A[18:0]) accesses two internal 512K × 36 arrays, and all synchronous inputs (RPS, WPS, BWS[3:0], D[35:0]) are registered on rising edges of K/K clocks.

Read data (Q[35:0]) is output-synchronized to C/C clocks with echo clocks CQ/CQ for skew compensation; DLL ensures precise data placement relative to output clocks. Core VDD = 1.8 V ±0.1 V and I/O VDDQ = 1.4–1.8 V support HSTL-18 drive strength and impedance matching via ZQ pin.

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 lead-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 CY7C1412AV18 and AS7C33618B-167BIN, the CY7C1414AV18 provides optimal 36-bit native interface alignment for modern packet processors and FPGA I/O banks, while maintaining proven reliability at 167 MHz with minimal board-level timing tuning.

Availability

CY7C1414AV18 is available at Aetrix Electronics and suitable for network infrastructure, FPGA acceleration, telecom baseband, and real-time video processing applications requiring stable component supply across multi-year production cycles.

Supply support for CY7C1414AV18 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 demanding embedded and communications systems.

The QDR-II SRAM product line targets high-bandwidth, low-latency memory subsystems in networking, wireless infrastructure, and high-end computing-emphasizing deterministic timing, concurrent access, and system-level signal integrity.

FAQ

What is the minimum VDDQ voltage supported by CY7C1414AV18?

The device supports VDDQ from 1.4 V to 1.8 V. Operation below 1.4 V is not guaranteed and may cause HSTL output drive failure or timing violations. The 1.4 V lower bound is specified in the DC Characteristics table of the datasheet and validated across temperature and process corners.

Can CY7C1414AV18 operate in single-clock mode?

Yes. When C and C are tied together and driven by K (or K), the device operates in single-clock mode. In this configuration, Q[35:0] and CQ/CQ are synchronized to K/K, simplifying clock distribution at the cost of reduced deskew capability compared to dual-clock operation.

How does the ZQ pin affect output impedance calibration?

ZQ connects to an external resistor (typically 50 Ω) to ground, enabling on-die termination calibration. The device sets CQ, CQ, and Q[35:0] output impedance to 0.2 × RQ (e.g., 10 Ω for 50 Ω RQ). Connecting ZQ directly to VDDQ enables minimum impedance mode (~7 Ω), but floating or grounding ZQ is prohibited and causes undefined behavior.

Is JTAG boundary-scan supported during normal operation?

Yes. The IEEE 1149.1 TAP controller operates independently of memory function. TDI, TDO, TCK, and TMS retain full boundary-scan capability even while RPS/WPS are active and data transfers occur-enabling in-system test without halting system operation.