Cypress Semiconductor Corp CY7C1470V33-167AXI

Overview

CY7C1470V33 from Infineon Technologies (formerly Cypress) is a 72-Mbit pipelined synchronous SRAM with NoBL™ architecture, configured as 2M × 36, supporting 167 MHz bus operation with zero wait states, 3.3 V core supply, 3.3 V/2.5 V I/O supply, and 3.4 ns clock-to-output time. It enables true back-to-back read/write in high-throughput networking buffers.

For engineers reviewing the CY7C1470V33 datasheet, CY7C1470V33 pinout, CY7C1470V33 application, or CY7C1470V33 equivalent, key selection criteria include burst mode support (linear/interleaved), byte-write capability (BWa–BWd), synchronous self-timed writes, JTAG boundary scan compliance, and TQFP/FBGA package options for memory subsystem integration.

Technical Context

The device implements fully registered inputs and outputs synchronized to the rising edge of CLK, with CEN enabling clock suspension and ZZ supporting sleep mode. Internal NoBL™ logic eliminates bus latency by enabling consecutive read/write transfers on every clock cycle without wait states.

It supports three chip enables (CE1–CE3) and asynchronous OE for bank selection and output tristate control, while synchronous write timing is managed via on-chip self-timed circuitry. Burst addressing follows linear or interleaved order, and byte write selects (BWa–BWd) allow granular 8-bit write control within the 36-bit data bus.

Key Specifications

Pinout & Package

Available in JEDEC-standard Pb-free 100-pin TQFP (14 × 20 × 1.4 mm) and non-Pb-free 165-ball FBGA (15 × 17 × 1.4 mm). Pin functions validated per Document Number 38-05289 Rev. *Y.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2135L16PF and AS7C3256A-16JIN, CY7C1470V33 uniquely combines 72-Mbit density, NoBL™ zero-latency pipelining, byte-write granularity, and JTAG testability - making it optimal for high-reliability telecom and defense systems requiring verified structural test coverage and deterministic timing.

Availability

CY7C1470V33 is available at Aetrix Electronics and suitable for telecom line cards, network packet buffers, radar signal processors, and industrial motion controllers requiring stable component supply across extended product lifecycles.

Supply support for CY7C1470V33 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 global semiconductor leader focused on power systems, automotive, industrial, and security solutions, with headquarters in Munich, Germany.

This device belongs to Infineon's legacy Cypress high-performance memory portfolio, designed specifically for zero-latency, high-bandwidth buffering in real-time communication and signal processing infrastructure.

FAQ

What is the correct handling for the ZZ pin on CY7C1470V33?

The ZZ pin (Pin 64 in TQFP, Ball H11 in FBGA) must be externally connected to ground per documented errata on page 35 of datasheet 38-05289 Rev. *Y. Leaving ZZ floating or pulling high disables deep-sleep mode and may cause undefined standby behavior. This requirement applies regardless of whether sleep functionality is actively used in the design.

Does CY7C1470V33 support 2.5 V-only I/O operation?

Yes - the device supports 2.5 V I/O supply (VDDQ) while maintaining 3.3 V core (VDD), enabling direct interfacing with 2.5 V logic families. VDDQ must be decoupled independently from VDD, and I/O voltage tolerance is strictly limited to 2.5 V ±0.2 V when VDDQ = 2.5 V; exceeding this risks parametric failure per AC switching specifications.

How does the NoBL™ architecture improve system performance over standard synchronous SRAM?

NoBL™ eliminates bus turnaround delays by allowing immediate read-after-write or write-after-read transitions without wait states. Unlike conventional SRAMs requiring bus release/reacquisition, CY7C1470V33 pipelines address and data transfers continuously - achieving up to 2× effective bandwidth in burst-intensive applications like packet buffering and radar sampling.

Can CY7C1470V33 be used in place of ZBT SRAMs?

Yes - it is pin-compatible and functionally equivalent to ZBT devices per datasheet claims, supporting identical control protocols, burst orders, and timing models. However, designers must verify OE timing margins and confirm that CEN-based clock suspension meets their controller's power management sequence, as ZBT implementations vary in clock-gating behavior.