Infineon Technologies CY7C1470V33-200BZI

Overview

CY7C1470V33-200BZI from Infineon Technologies (formerly Cypress) is a 72-Mbit synchronous pipelined SRAM with NoBL™ architecture, configured as 2M × 36, operating at 200 MHz with zero wait states. It features fully registered I/O, 3.3 V core supply, 3.3 V/2.5 V I/O compatibility, and 3.0 ns clock-to-output delay. It serves in high-throughput packet buffering and network switch data path memory subsystems.

For engineers reviewing the CY7C1470V33-200BZI datasheet, CY7C1470V33-200BZI pinout, CY7C1470V33-200BZI application, or CY7C1470V33-200BZI equivalent, key selection criteria include burst mode support (linear/interleaved), byte-write capability (BWa–BWd), JTAG boundary scan compliance, ZZ sleep mode control, and JEDEC-standard 100-pin TQFP packaging with Pb-free finish.

Technical Context

This SRAM implements a synchronous, pipelined read/write architecture with No Bus Latency™ logic enabling true back-to-back operations without wait states. All inputs and outputs are edge-triggered by the rising clock edge, and internal self-timed write circuitry eliminates external write pulse timing constraints.

The device supports three chip enables (CE1–CE3), clock enable (CEN), asynchronous output enable (OE), and four byte write selects (BWa–BWd). Its burst logic handles linear or interleaved address sequences, and IEEE 1149.1 JTAG boundary scan provides testability for high-density PCBs.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 × 20 × 1.4 mm), Pb-free, JEDEC-standard footprint with exposed thermal pad (not electrically connected).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous pipelined SRAM applications.

Compared with IDT72V2115L10PFI and IS61WV204836BLL-100BLI, the CY7C1470V33-200BZI delivers 100% higher bandwidth, integrated sleep control for dynamic power scaling, and JTAG support for production test coverage-making it uniquely suited for next-generation telecom and industrial real-time buffers.

Availability

CY7C1470V33-200BZI is available at Aetrix Electronics and suitable for network packet buffering, telecom line card memory, and industrial PLC data logging requiring stable component supply, long-term lifecycle assurance, and Pb-free compliance.

Supply support for CY7C1470V33-200BZI 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 acquired Cypress Semiconductor in 2020 and maintains its high-performance memory portfolio, including NoBL™ SRAMs, for demanding infrastructure applications.

The CY7C1470V33 belongs to Cypress' NoBL™ synchronous SRAM product line, engineered specifically for zero-latency, high-bandwidth data buffering in networking, telecom, and real-time industrial systems.

FAQ

What is the required connection for the ZZ pin on CY7C1470V33-200BZI?

The ZZ pin (Pin 64 in 100-pin TQFP) must be externally tied to ground to ensure proper deep-sleep functionality. This requirement is documented in the device errata (page 35 of Rev. *Y datasheet) due to silicon-level behavior affecting sleep current stability. Leaving ZZ floating or pulling high disables the feature and may cause excessive standby current.

Does CY7C1470V33-200BZI support both linear and interleaved burst addressing?

Yes, the device supports both linear and interleaved burst orders via internal burst logic controlled by the MODE pin. Linear mode increments addresses sequentially (e.g., 0x00, 0x01, 0x02), while interleaved mode uses XOR-based sequencing (e.g., 0x00, 0x02, 0x01, 0x03) to match CPU cache line access patterns. The selected mode persists until MODE is reasserted.

Can CY7C1470V33-200BZI operate with 2.5 V I/O while maintaining 3.3 V core supply?

Yes, the device supports independent 3.3 V core (VDD) and 2.5 V I/O (VDDQ) supplies. VDDQ must be stable within ±0.2 V of 2.5 V when used, and all DQ pins, BW signals, and OE are referenced to VDDQ. This allows direct interfacing with 2.5 V logic families without level shifters, preserving signal integrity at 200 MHz.

Is JTAG boundary scan enabled by default on CY7C1470V33-200BZI?

JTAG is enabled by default at power-up and remains active unless explicitly disabled via the TAP instruction set. The TDI, TDO, TCK, and TMS pins function as boundary scan I/O regardless of device operational mode. Disabling JTAG requires writing the BYPASS instruction and is not recommended for production boards requiring test coverage.