Infineon Technologies CY7C1460AV25-250AXCT

Overview

CY7C1460AV25-250AXCT from Cypress Semiconductor is a 36-Mbit (1M × 36) synchronous pipelined SRAM with No Bus Latency™ (NoBL™) architecture, designed for high-throughput memory subsystems in network switches, routers, and packet buffering applications. It operates at 250 MHz with zero wait states, features 2.5V core/2.5V–1.8V I/O supplies, 2.6 ns clock-to-output delay, and full input/output registration for true back-to-back read/write cycles.

For engineers reviewing the CY7C1460AV25-250AXCT datasheet, CY7C1460AV25-250AXCT pinout, CY7C1460AV25-250AXCT application, or CY7C1460AV25-250AXCT equivalent, key selection criteria include burst order control (linear/interleaved), byte-write select granularity (BWa–BWd), synchronous self-timed write timing, and compatibility with ZBT™-based memory controllers in telecom infrastructure designs.

Technical Context

This SRAM implements a fully synchronous, pipelined architecture where all address, control, and data inputs are registered on the rising edge of CLK, and all outputs are registered with 2.6 ns tCO at 250 MHz. The internal NoBL™ logic eliminates bus latency by enabling consecutive read/write operations without wait states, supported by three synchronous chip enables (CE1 active-low, CE2 active-high, CE3 active-low) and asynchronous OE.

It integrates on-chip burst logic (linear or interleaved via MODE pin), synchronous self-timed write circuitry qualified by WE and BWa–BWd, and JTAG-compliant boundary scan (IEEE 1149.1). The device supports "ZZ" sleep mode for low-power standby while preserving data integrity, and uses separate VDD (2.5V core) and VDDQ (2.5V/1.8V I/O) supplies to decouple core and interface power domains.

Key Specifications

Pinout & Package

The CY7C1460AV25-250AXCT is packaged in a lead-free 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch) and also available in 165-ball FBGA. Pin functions are strictly synchronous except OE (asynchronous) and ZZ (asynchronous sleep).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L15PF and IS61WV102436BLL-15BLI, the CY7C1460AV25-250AXCT delivers 87% higher bandwidth (250 vs. 133 MHz), dual-voltage I/O flexibility, and integrated sleep/JTAG - making it uniquely suited for next-generation telecom and high-speed data plane applications.

Availability

CY7C1460AV25-250AXCT is available at Aetrix Electronics and suitable for network packet buffering, telecom line card memory, high-performance computing cache, and industrial real-time controller buffer applications requiring stable component supply across extended production lifecycles.

Supply support for CY7C1460AV25-250AXCT 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 analog/digital ICs for industrial, automotive, and communications markets.

The CY7C1460AV25 belongs to Cypress's NoBL™ SRAM product line, engineered specifically to replace asynchronous and ZBT™ SRAMs in bandwidth-constrained, low-latency memory subsystems where deterministic timing and zero-wait-state operation are essential.

FAQ

What is the function of the MODE pin on CY7C1460AV25-250AXCT?

The MODE pin is a static strap input that selects burst order: tied HIGH for interleaved burst, pulled LOW for linear burst. It must remain stable during operation and defaults to HIGH (interleaved) if left floating due to internal pull-up. This setting directly affects how the internal address counter increments during burst reads/writes and must match the memory controller's expected addressing sequence.

Can CY7C1460AV25-250AXCT operate with 1.8V I/O voltage while maintaining 250-MHz performance?

Yes - the device supports 1.8V VDDQ for I/O operation while maintaining full 250-MHz functionality and 2.6 ns tCO, as confirmed in the DC and AC characteristics tables of the official datasheet (Document #38-05354 Rev. *D). Core voltage remains fixed at 2.5V; I/O voltage selection does not impact maximum clock frequency or timing parameters.

How does the ZZ pin interact with CEN and clock gating?

ZZ is an asynchronous active-high sleep input that places the device in a low-power retention state independent of CEN or CLK. When ZZ = HIGH, internal clocks stop, core power drops, but data is retained. CEN only gates CLK recognition and does not reduce power; ZZ must be used for power savings. Both can be asserted simultaneously, but ZZ takes precedence for power control.

Is CY7C1460AV25-250AXCT pin-compatible with ZBT™ SRAMs such as the IDT72V2115?

No - while functionally equivalent in protocol (pipelined, zero-wait-state, burst-capable), CY7C1460AV25-250AXCT is not pin-compatible with IDT ZBT™ devices. Its pinout differs in address count (A0–A19 vs. A0–A18), byte-write signal count (BWa–BWd vs. BW0–BW3), and package-specific ball/pad assignments. Board redesign is required for replacement.