Cypress Semiconductor Corp CY7C1460KV25-167BZC

Overview

CY7C1460KV25-167BZC from Cypress Semiconductor is a 36-Mbit (1M × 36) synchronous pipelined SRAM with NoBL™ architecture, ECC support, 2.5 V core/I/O supply, and 167 MHz operation (3.4 ns access). It delivers zero-wait-state back-to-back read/write capability in high-throughput packet buffering and network switching applications.

For engineers reviewing the CY7C1460KV25-167BZC datasheet, CY7C1460KV25-167BZC pinout, CY7C1460KV25-167BZC application, or CY7C1460KV25-167BZC equivalent, key selection criteria include burst mode support (linear/interleaved), on-chip ECC for SER reduction, byte-write granularity (BWa–BWd), synchronous self-timed writes, and TQFP-100 package compatibility with ZBT™-legacy systems.

Technical Context

This SRAM implements fully registered pipelined I/O with rising-edge clock sampling for all inputs and outputs, enabling deterministic timing across 167 MHz operation. Its NoBL™ logic eliminates bus latency by supporting true back-to-back read/write cycles without wait states.

The device integrates on-chip ECC encoding/decoding for single-bit error correction and double-bit error detection, reducing soft error rate in radiation-sensitive environments. It supports linear or interleaved burst orders, ZZ sleep mode, and IEEE 1149.1 JTAG boundary scan for system-level testability.

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Flat Package (TQFP), JEDEC-standard Pb-free, body size 14 mm × 14 mm, 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L15PF and IS61WV102436B, CY7C1460KV25-167BZC uniquely combines ECC, ZZ sleep, and dual-burst mode in a 2.5 V, pin-compatible package - making it the sole option for new designs requiring SER mitigation and dynamic power scaling.

Availability

CY7C1460KV25-167BZC is available at Aetrix Electronics and suitable for network packet buffering, telecom line card memory, baseband processing cache, and radar signal processing buffer applications requiring stable component supply across extended product lifecycles.

Supply support for CY7C1460KV25-167BZC 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) designs high-performance memory and programmable solutions for networking, automotive, and industrial systems, with focus on reliability and signal integrity.

CY7C1460KV25 belongs to Cypress's NoBL™ SRAM product line, engineered specifically for zero-latency, high-throughput data buffering in packet-switched and real-time signal processing systems.

FAQ

Does CY7C1460KV25-167BZC support both 1M × 36 and 2M × 18 configurations?

Yes. The device supports configurable organization via MODE pin: MODE = HIGH selects 1M × 36 mode (A0–A19 used); MODE = LOW selects 2M × 18 mode (A0–A20 used). This dual-mode capability allows flexible memory mapping without hardware redesign.

How does the on-chip ECC operate during read and write cycles?

ECC encoding occurs automatically during every write cycle using dedicated on-die logic; no external controller involvement is required. During reads, ECC decoding and correction happen transparently - corrected data appears at DQ outputs within the specified 3.4 ns access time, with uncorrectable errors flagged via parity pins.

What is the functional impact of asserting CEN HIGH during active operation?

Asserting CEN HIGH masks the CLK input but maintains internal state - the device holds its last valid cycle indefinitely without deselecting. This extends the previous read or write cycle, enabling precise timing alignment with external controllers that cannot meet strict clock duty-cycle requirements.

Can ADV/LD be used to initiate burst sequences without external address generation?

Yes. With ADV/LD held HIGH and CEN active LOW, the internal address counter auto-increments on each CLK rising edge, enabling continuous burst reads/writes starting from the initial loaded address - eliminating need for external address counters in streaming applications.