Infineon Technologies CY7C1460KV33-167AXI

Overview

CY7C1460KV33 from Cypress Semiconductor is a 36-Mbit (1M × 36) synchronous pipelined SRAM with NoBL™ architecture, integrated ECC, 167 MHz maximum clock frequency, 3.3-V core supply, and 3.3-V/2.5-V I/O support. It enables zero-wait-state back-to-back read/write operations in high-throughput networking line cards and packet buffering systems.

For engineers reviewing the CY7C1460KV33 datasheet, CY7C1460KV33 pinout, CY7C1460KV33 application, or CY7C1460KV33 equivalent, key selection criteria include burst order configuration (linear/interleaved), byte-write select mapping to DQ/DQP groups, synchronous self-timed write timing, ZZ sleep mode entry latency, and JTAG boundary-scan testability for system-level validation.

Technical Context

This SRAM implements fully registered synchronous interfaces: all address, control, and data inputs are latched on the rising edge of CLK (qualified by CEN), and all outputs are driven from output registers synchronized to CLK. The internal NoBL™ logic eliminates bus turnaround latency between consecutive reads and writes.

Burst addressing is configurable via the MODE strap pin (interleaved or linear), and on-chip ECC provides single-bit error correction and double-bit error detection across both data (DQa–DQd) and parity (DQPa–DQPd) bits. Byte write selects BWa–BWd independently gate write enable per 9-bit data/parity group.

Key Specifications

Pinout & Package

Package: 100-pin TQFP (14 mm × 14 mm, 0.5 mm pitch), JEDEC-standard Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AS7C3616A-167JC and IS61WV102436B-167TQLI, CY7C1460KV33 delivers verified ECC protection, configurable burst addressing, and IEEE 1149.1 testability - making it uniquely suitable for telecom infrastructure and avionics where data integrity and production testability are non-negotiable.

Availability

CY7C1460KV33 is available at Aetrix Electronics and suitable for telecom line card buffering, high-speed packet switching, and radar signal processing requiring stable component supply across extended product lifecycles.

Supply support for CY7C1460KV33 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 automotive, industrial, and communications markets.

CY7C1460KV33 belongs to the NoBL™ SRAM product line, engineered specifically for zero-latency, high-throughput buffering in networking ASIC interfaces and real-time signal processing subsystems.

FAQ

What is the function of the MODE pin, and how must it be configured?

The MODE pin selects burst address order: HIGH enables interleaved burst, LOW enables linear burst. It is a strap pin - must be set before device initialization and held static during operation. Floating defaults to HIGH (interleaved). Incorrect or dynamic toggling causes undefined burst behavior and data corruption.

How does the ZZ (sleep) mode affect data retention and wake-up timing?

ZZ mode reduces ICC to ≤50 µA while maintaining full data retention in the SRAM array. Wake-up is asynchronous: asserting CE1/CE2/CE3 and CLK exits sleep within one clock cycle. No reinitialization or refresh is required - data remains valid immediately upon wake-up.

Can CY7C1460KV33 operate with 2.5-V I/O while using 3.3-V core supply?

Yes. VDDQ (I/O supply) accepts 2.5 V ± 0.2 V independently of VDD (3.3 V ± 0.3 V). This allows direct interfacing with 2.5-V FPGAs or ASICs while maintaining full 3.3-V internal logic performance and timing margins.

Does the on-chip ECC cover both data and parity bits, and what error conditions does it handle?

Yes. ECC covers all 36 data bits (DQa–DQd) and 4 parity bits (DQPa–DQPd), forming a 40-bit protected word. It performs single-bit error correction (SEC) and double-bit error detection (DED) in real time, with no software overhead or latency penalty on read cycles.