Infineon Technologies CY7C1370D-200BZC

Overview

CY7C1370D-200BZC from Infineon Technologies is a 1-Mbit (64K × 16) synchronous pipelined SRAM with QDR™ II architecture, supporting 200 MHz double-data-rate operation (400 MT/s), 1.8 V core voltage, and differential LVDS clock inputs. It serves as high-bandwidth buffer memory in network packet processing, switch fabric line cards, and telecom baseband subsystems.

For engineers reviewing the CY7C1370D-200BZC datasheet, CY7C1370D-200BZC pinout, CY7C1370D-200BZC application, or CY7C1370D-200BZC equivalent, key selection criteria include QDR-II timing compliance, LVDS clock interface integrity, read/write latency symmetry, and burst-length configurability for deterministic throughput in multi-port memory systems.

Technical Context

This QDR-II SRAM implements separate independent read and write data buses (DQ and WDQ), enabling concurrent access without bus turnaround delay. Its dual-clock architecture uses K and K# for read operations and WCK and WCK# for write operations, each with programmable phase alignment.

The device supports programmable burst lengths of 2, 4, or 8, and features on-die termination (ODT) for both read and write data buses, along with DLL-based internal timing control to maintain setup/hold margins across process-voltage-temperature (PVT) corners.

Key Specifications

Pinout & Package

Package: 165-ball fine-pitch BGA (13 mm × 15 mm, 0.8 mm pitch), RoHS-compliant, lead-free, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1370D-200BZC, the CY7C1371D variant adds testability at larger footprint cost, while the AS7C31026B offers simpler interface and lower cost but sacrifices QDR-II's concurrent read/write capability and LVDS noise immunity-making it unsuitable for high-speed data-path roles.

Availability

CY7C1370D-200BZC is available at Aetrix Electronics and suitable for network switch fabric buffers, telecom baseband subsystems, and high-frequency trading hardware requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.

Supply support for CY7C1370D-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

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and high-performance memory-including QDR SRAMs for infrastructure applications.

CY7C1370D belongs to Infineon's legacy Cypress QDR-II SRAM product line, designed specifically for deterministic, high-throughput packet buffering in networking and communications equipment where dual-port concurrency and sub-5 ns read latency are essential.

FAQ

What is the minimum supported burst length for CY7C1370D-200BZC?

The device supports programmable burst lengths of 2, 4, or 8. Burst length is configured via the MODE pin during reset and cannot be changed dynamically. A 2-beat burst yields lowest latency (2-cycle read access), while longer bursts improve bandwidth efficiency for sequential accesses.

Does CY7C1370D-200BZC require external termination resistors?

No. The device integrates programmable on-die termination (ODT) for both DQ and WDQ buses, configurable per byte lane via mode registers. External termination is optional and only recommended if system-level signal integrity analysis indicates insufficient margin with default ODT settings.

Can CY7C1370D-200BZC operate with single-ended clock inputs?

No. The K/K# and WCK/WCK# inputs are strictly differential LVDS. Driving them with single-ended signals violates AC specifications and risks timing violations or metastability. An external LVDS clock buffer or FPGA transceiver with differential output must be used.

Is there a drop-in replacement for CY7C1370D-200BZC with extended temperature range?

Yes: CY7C1370D-200BZI is the industrial-grade version (-40°C to +85°C), pin-compatible and electrically identical except for extended thermal qualification. It shares the same 165-ball BGA package and timing parameters, requiring no PCB or firmware changes.