Infineon Technologies CY7C1460AV33-167AXIT

Overview

CY7C1460AV33-167AXIT from Cypress Semiconductor is a 36-Mbit (1M × 36) synchronous pipelined SRAM with NoBL™ architecture, designed for high-throughput memory subsystems in networking and telecom line cards. It operates at 167 MHz with 3.3 V core supply, 3.3 V/2.5 V I/O support, and delivers 3.4 ns clock-to-output delay. Its fully registered interface enables true back-to-back read/write operations without wait states in packet buffering applications.

For engineers reviewing the CY7C1460AV33-167AXIT datasheet, CY7C1460AV33-167AXIT pinout, CY7C1460AV33-167AXIT application, or CY7C1460AV33-167AXIT equivalent, key selection criteria include burst order configuration (linear/interleaved), byte-write granularity (BWa–BWd), synchronous self-timed write timing, and compatibility with ZBT-style bus protocols in high-speed data path designs.

Technical Context

The device implements a fully synchronous, rising-edge-triggered interface with three chip enables (CE1 active-low, CE2 active-high, CE3 active-low) and clock enable (CEN) to gate CLK recognition. All address, control, and data inputs are registered on the rising edge of CLK when CEN is asserted.

It features internal burst logic supporting linear or interleaved burst orders via MODE strap, synchronous self-timed writes qualified by WE and BW signals, and output drivers synchronously tristated during write data cycles to prevent bus contention - eliminating need for external OE timing management.

Key Specifications

Pinout & Package

Package: JEDEC-standard Pb-free 100-pin TQFP (14 × 20 × 1.4 mm), RoHS-compliant, surface-mountable with standard reflow profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L16PF and IS61WV102436B, CY7C1460AV33-167AXIT uniquely combines full ZBT pin compatibility, dual-voltage I/O, hardware-configurable burst order, and integrated JTAG - making it the only option supporting both high-assurance testability and mixed-voltage system integration in telecom infrastructure.

Availability

CY7C1460AV33-167AXIT is available at Aetrix Electronics and suitable for packet buffering, network processor interfacing, and telecom line card applications requiring stable component supply, long-lifecycle support, and RoHS-compliant manufacturing.

Supply support for CY7C1460AV33-167AXIT 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 fabless semiconductor company specializing in high-performance memory, microcontrollers, and programmable systems-on-chip for industrial, automotive, and communications markets.

CY7C1460AV33 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for zero-wait-state, high-throughput data buffering in networking and telecom infrastructure where deterministic latency and bus efficiency are critical.

FAQ

What does "NoBL™" mean and how does it improve system performance?

NoBL™ (No Bus Latency) is Cypress's proprietary architecture enabling consecutive read and write operations without wait states. Unlike conventional SRAMs requiring turnaround cycles, CY7C1460AV33 uses internal pipelining and synchronous self-timed writes to deliver data on every clock edge - increasing effective bandwidth by up to 40% in mixed-access workloads like packet buffering.

Can CY7C1460AV33-167AXIT operate with 2.5 V I/O while maintaining 3.3 V core supply?

Yes. The device supports independent VDDQ (I/O supply) at either 3.3 V or 2.5 V while VDD (core) remains at 3.3 V. This is confirmed in the DC specifications table (Rev. *P, p.19) and allows direct interfacing with 2.5 V FPGAs or ASICs without level shifters - provided VDDQ and VDD are ramped monotonically during power-up.

How is burst order selected, and can it be changed dynamically?

Burst order (linear or interleaved) is set by the MODE pin at power-up and latched internally. MODE must remain static during operation - changing it mid-operation causes undefined behavior per Functional Description (p.7). Interleaved is default (MODE floating HIGH); linear requires pulling MODE LOW before initialization.

Does CY7C1460AV33-167AXIT support JTAG boundary scan in-system testing?

Yes. It implements full IEEE 1149.1 JTAG compliance with TCK, TDI, TDO, and TMS pins. The boundary scan chain covers all I/Os and control signals, enabling interconnect testing and fault isolation on populated PCBs - detailed in Sections 11–15 of the datasheet (pp.11–15).