Infineon Technologies CY7C1460KV25-167AXC

Overview

CY7C1460KV25-167AXC from Cypress Semiconductor is a 36-Mbit (1M × 36) synchronous pipelined SRAM with NoBL™ architecture, integrated ECC, 2.5 V core/I/O supply, and 167 MHz maximum bus operation. It supports zero-wait-state back-to-back read/write cycles in high-throughput networking buffers and packet processors.

For engineers reviewing the CY7C1460KV25-167AXC datasheet, CY7C1460KV25-167AXC pinout, CY7C1460KV25-167AXC application, or CY7C1460KV25-167AXC equivalent, key selection criteria include burst mode support (linear/interleaved), byte-write capability (BWa–BWd), synchronous self-timed writes, JTAG boundary scan compliance, and 100-pin TQFP package compatibility.

Technical Context

This SRAM implements fully registered pipelined I/O with clocked address, data, and control inputs-all sampled on the rising edge of CLK. Its NoBL™ logic eliminates bus latency by enabling consecutive read/write operations without wait states, delivering sustained throughput at 167 MHz.

The device integrates on-chip ECC encoding/decoding to detect and correct single-bit errors, reducing soft error rate (SER) in radiation-sensitive environments. It supports three chip enables (CE1/CE2/CE3), asynchronous OE, clock enable (CEN), and ZZ sleep mode for power management.

Key Specifications

Pinout & Package

Package: 100-pin JEDEC-standard Pb-free TQFP (14 mm × 14 mm, 0.5 mm pitch). Pinout validated per Document 001-66679 Rev. *J, Figure 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IDT72V2115L15PF and IS61WV102436B, CY7C1460KV25-167AXC delivers higher bandwidth (167 vs. ≤133 MHz), guaranteed ECC correction, and JTAG testability-critical for telecom and defense applications demanding uptime and verifiability.

Availability

CY7C1460KV25-167AXC is available at Aetrix Electronics and suitable for network packet buffering, telecom line card caching, and radar signal processing requiring stable component supply across extended product lifecycles.

Supply support for CY7C1460KV25-167AXC 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 communications, industrial, and automotive systems.

CY7C1460KV25-167AXC belongs to the NoBL™ SRAM product line, engineered specifically for zero-latency, ECC-protected buffering in packet-switched infrastructure and real-time signal processing platforms.

FAQ

Does CY7C1460KV25-167AXC support both linear and interleaved burst orders?

Yes. The device supports both linear and interleaved burst addressing modes, selected via the MODE pin. Linear mode increments addresses sequentially (e.g., 0x0000 → 0x0001), while interleaved mode uses XOR-based addressing (e.g., 0x0000 → 0x0002) to match legacy processor burst patterns. This flexibility allows direct integration with Intel, ARM, and custom ASIC bus protocols without glue logic.

What is the function of the ADV/LD pin during burst operations?

ADV/LD controls the internal address counter: when HIGH (with CEN active), it advances the counter to the next burst address; when LOW, it loads a new starting address from A0–A19. This dual-mode operation enables seamless transitions between sequential bursts and random-access initiations, essential for dynamic packet buffer management in switching ASICs.

How does the on-chip ECC handle error detection and correction?

The ECC engine implements Hamming code across each 36-bit data word plus 4 parity bits (DQPa–DQPd), detecting all double-bit errors and correcting all single-bit errors per access. Correction occurs transparently during read cycles; no software intervention or retry is required. Uncorrectable errors assert an interrupt-capable flag (not pin-defined but observable via status register in compatible configurations).

Can CY7C1460KV25-167AXC operate with mixed voltage interfaces?

No. The device requires a single 2.5 V supply for both core logic and I/O circuits. It does not support mixed-voltage operation (e.g., 2.5 V core with 3.3 V I/O). All interface signals-including address, data, and control pins-must be driven and terminated within 2.5 V LVTTL specifications. Level shifters are required for interfacing with 3.3 V or 1.8 V systems.