Infineon Technologies CY7C1460KV33-200AXC

Overview

CY7C1460KV33 from Cypress Semiconductor is a 36-Mbit (1M × 36) synchronous pipelined SRAM with NoBL™ architecture, ECC support, and 200 MHz operation (3.2 ns access). It delivers zero-wait-state back-to-back read/write transfers in high-throughput memory subsystems for network packet buffers and telecom line cards.

For engineers reviewing the CY7C1460KV33 datasheet, CY7C1460KV33 pinout, CY7C1460KV33 application, or CY7C1460KV33 equivalent, key selection criteria include its 100-pin TQFP package, 3.3-V core/2.5-V I/O supply flexibility, synchronous self-timed writes, byte-write capability, and on-chip ECC for SER reduction in mission-critical systems.

Technical Context

This SRAM implements fully registered pipelined operation: all address, control, and data inputs are latched on the rising edge of CLK (qualified by CEN), and all outputs are clocked through output registers. Burst logic supports linear or interleaved orders via MODE strap.

The device integrates on-chip ECC encoding/decoding for single-bit error correction and double-bit error detection, with dedicated parity I/O lines (DQPa–DQPd) mapped per data nibble group. Sleep mode (ZZ) reduces standby current to ≤5 mA.

Key Specifications

Pinout & Package

Package: 100-pin Thin Quad Flat Package (TQFP), JEDEC-standard, Pb-free, body size 14 mm × 20 mm, 0.5 mm lead pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1460KVE33, the CY7C1460KV33 offers identical electrical and functional behavior but with standard RoHS exemption status; versus AS7C3364B-20JCIN, it adds ECC, parity I/O, and flexible burst control at higher unit cost and power.

Availability

CY7C1460KV33 is available at Aetrix Electronics and suitable for network packet buffers, telecom line cards, industrial PLC data caches, and radar signal processing buffers requiring stable component supply across multi-year production cycles.

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 industrial, automotive, and communications markets.

The NoBL™ SRAM product line targets latency-critical, high-bandwidth memory subsystems in networking and telecom infrastructure - emphasizing zero-turnaround operation, ECC resilience, and synchronous determinism.

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 initialization and held static during operation. Floating defaults to HIGH (interleaved). Incorrect or dynamic toggling causes undefined burst addressing and data corruption.

Does CY7C1460KV33 support 2.5-V-only operation?

Yes - VDD must remain at 3.3 V ± 0.3 V, but VDDQ can be independently set to 2.5 V ± 0.2 V for I/O interfacing. This allows direct connection to 2.5-V FPGAs or ASICs without level shifters, while maintaining full 200-MHz timing performance and ECC functionality.

How does the ZZ (sleep) mode interact with data retention and wake-up latency?

In ZZ mode, core power drops to ≤5 mA and I/O drivers are disabled, but SRAM array contents are retained. Wake-up requires ≥100 ns stabilization after ZZ deassertion before first valid access; no refresh or reinitialization is needed. CEN and CLK may remain inactive during sleep.

Can OE be used to control output direction during burst reads?

No - OE is masked during the data portion of any write sequence and during the first clock after deselection. During burst reads, OE remains effective for tristating outputs, but internal logic automatically manages direction based on WE and CE states; manual OE control is redundant and discouraged for burst timing integrity.