Infineon Technologies CY7C1414AV18-167BZI

Overview

CY7C1414AV18 from Cypress Semiconductor is a 1M × 36-bit, 36-Mbit QDR-II™ SRAM with synchronous pipelined architecture, dual independent read/write ports, 167 MHz maximum operating frequency, 1.8 V core supply (±0.1 V), and 1.4–1.8 V I/O supply (VDDQ). It delivers 500 MT/s DDR data transfer on both ports and is used in high-bandwidth packet buffering for network switches and routers.

For engineers reviewing the CY7C1414AV18 datasheet, CY7C1414AV18 pinout, CY7C1414AV18 application, or CY7C1414AV18 equivalent, key selection criteria include its x36 bus width, 19-bit address interface, BWS[3:0] byte write select capability, echo clock support (CQ/CQ), and 165-ball FBGA package compatibility with HSTL-18 I/O standards.

Technical Context

The CY7C1414AV18 implements QDR-II architecture with physically separate read and write data paths-36-bit input D[35:0] and 36-bit output Q[35:0]-eliminating bus turnaround overhead. All accesses are synchronized to rising edges of K/K clocks (write/read address capture) and C/C clocks (output timing), enabling concurrent read/write operations without arbitration.

It integrates a Delay Lock Loop (DLL) for precise data placement, supports JTAG 1149.1 boundary scan, and uses ZQ pin for dynamic output impedance tuning against system trace impedance. The device organizes memory as two 512K × 36 arrays, with burst length fixed at two 36-bit words per access.

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-bandwidth synchronous SRAM applications.

Compared with IDT72T36115L10BG and ISSI IS61WV102436B, the CY7C1414AV18 uniquely balances 167 MHz QDR-II concurrency, echo-clock–assisted capture, and proven field reliability in telecom infrastructure-making it optimal for legacy and long-lifecycle designs where pin-and-function compatibility is critical.

Availability

CY7C1414AV18 is available at Aetrix Electronics and suitable for network switch buffering, high-speed test instrumentation, and telecom baseband subsystems requiring stable component supply over extended production lifecycles.

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) is a U.S.-based semiconductor company specializing in high-performance memory, microcontrollers, and programmable systems-on-chip for industrial, automotive, and communications markets.

The CY7C1414AV18 belongs to Cypress's QDR-II SRAM product line, engineered specifically for deterministic, low-latency, high-throughput memory interfacing in networking and signal processing ASICs.

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-18 input threshold violations or output drive degradation. System designs must regulate VDDQ within this range and verify timing margins at 1.4 V corner conditions.

Can CY7C1414AV18 operate without the DLL enabled?

Yes - tying DOFF low disables the DLL, reverting to basic clock-to-output timing. However, AC parameters change significantly: tAC increases by up to 1.8 ns and setup/hold windows shrink. This mode is only recommended for prototyping or low-speed validation, not production use.

How many address bits are required for CY7C1414AV18, and how are they used?

CY7C1414AV18 requires 19 address bits (A[18:0]) because it implements a 1M × 36 organization (2²⁰ = 1,048,576 addresses, but internal dual-array structure uses 19 bits per bank). A[18:0] are multiplexed: latched on K rising edge for reads, K rising edge for writes - no external address demux needed.

Is the ZQ pin required to be connected, and what happens if left floating?

ZQ must never be left unconnected or tied to GND. It must be connected either to an external resistor (RQ) to ground for impedance calibration, or directly to VDDQ for minimum-drive mode. Floating ZQ causes undefined output impedance, leading to signal integrity failures and potential bus contention in multi-drop configurations.