Cypress Semiconductor Corp CY7C1412BV18-200BZC

Overview

CY7C1412BV18-200BZC from Cypress Semiconductor is a 36-Mbit QDR® II SRAM with 2M × 18 organization, 250 MHz clock support (200 MHz guaranteed), 1.8 V core supply, and 1.4–1.8 V I/O supply. It implements separate read/write ports with DDR interfaces on both, enabling concurrent transactions and eliminating bus turnaround. Used in high-bandwidth networking buffers and packet processing ASIC/FPGA interfaces.

For engineers reviewing the CY7C1412BV18-200BZC datasheet, CY7C1412BV18-200BZC pinout, CY7C1412BV18-200BZC application, or CY7C1412BV18-200BZC equivalent, key selection criteria include 2-word burst timing, DLL-enabled 1.5-cycle read latency, HSTL-18 I/O compliance, echo clock (CQ/CQ) support for source-synchronous capture, and FBGA-165 package thermal/mechanical constraints.

Technical Context

The CY7C1412BV18-200BZC implements a synchronous pipelined QDR II architecture with physically isolated read and write data paths, each operating at DDR rates up to 500 MT/s. Its dual-clock domain uses independent K/K for address/data input latching and C/C for output timing-enabling precise skew control and eliminating turnaround delays.

It integrates a Delay Lock Loop (DLL) for accurate data placement relative to C/C clocks, supporting 1.5-cycle read latency when enabled (DLL ON) or 1-cycle latency when disabled (DOFF = LOW). Internal organization as two 1M × 18 arrays enables depth expansion via RPS/WPS and BWS[1:0] controls.

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 Pb-free option available.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72T36120L10BG and IS61WV102418B, the CY7C1412BV18-200BZC uniquely delivers 200 MHz guaranteed concurrent bandwidth with HSTL-18 compatibility and integrated echo clocks-making it the only choice for FPGA-based 10G+ packet processing where timing determinism and bus efficiency are mandatory.

Availability

CY7C1412BV18-200BZC is available at Aetrix Electronics and suitable for network packet buffering, FPGA-based protocol acceleration, and telecom baseband processing requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for CY7C1412BV18-200BZC 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 solutions for industrial, automotive, and communications markets.

The CY7C1412BV18 belongs to Cypress's QDR II SRAM product line, engineered specifically for ultra-low-latency, high-throughput data buffering in networking and telecommunications infrastructure where deterministic timing and concurrent access are essential.

FAQ

What is the guaranteed maximum operating frequency for CY7C1412BV18-200BZC?

The "200" in the part number denotes guaranteed operation at 200 MHz (5 ns clock period) across commercial temperature range (0°C to +70°C) and full voltage tolerance (VDD = 1.8 V ±0.1 V, VDDQ = 1.4–1.8 V). While the device supports up to 250 MHz under controlled conditions, only 200 MHz is production-tested and warranted per datasheet Rev. *E.

How does the DOFF pin affect timing behavior?

When DOFF is pulled LOW, the internal Delay Lock Loop (DLL) is disabled, forcing QDR I timing mode: read latency reduces to 1 clock cycle but maximum frequency drops to 167 MHz. When DOFF is HIGH (via 10 kΩ pull-up), DLL is active, enabling 1.5-cycle latency and full 200 MHz operation with tighter output timing windows.

Can CY7C1412BV18-200BZC be used with a single clock instead of differential K/K and C/C pairs?

Yes - the device supports single-clock mode: tie K to C and K to C (or use K/K only for both input and output registers). In this mode, Q[17:0] timing is referenced to K/K edges, and CQ/CQ become echoes of K/K. However, echo-clock deskew benefits and maximum timing margin are lost versus true differential clocking.

What is the function of the ZQ pin, and how must it be connected?

ZQ calibrates output driver impedance to match the system data bus. It must be connected to a precision resistor (typically 100 Ω) tied to VSS (ground); the device sets CQ, CQ, and Q[17:0] output impedance to 0.2 × R_Q. Connecting ZQ directly to VDDQ enables minimum-impedance mode (≈10 Ω); floating or grounding ZQ is prohibited and causes undefined output drive strength.