Infineon Technologies CY7C1441KV33-133AXC

Overview

CY7C1441KV33-133AXC from Infineon Technologies (formerly Cypress) is a 36-Mbit synchronous flow-through SRAM with on-chip ECC, configured as 1M × 36, supporting 133 MHz bus operations, 6.5 ns clock-to-output delay, and dual-voltage I/O (2.5 V or 3.3 V). It interfaces directly with high-speed microprocessors in cache and memory subsystems requiring burst-access timing integrity and soft-error resilience.

For engineers reviewing the CY7C1441KV33-133AXC datasheet, CY7C1441KV33-133AXC pinout, CY7C1441KV33-133AXC application, or CY7C1441KV33-133AXC equivalent, key selection criteria include burst mode control (interleaved/linear), synchronous write enable architecture, JEDEC-standard TQFP-100 packaging, and IEEE 1149.1 JTAG boundary-scan support for system-level testability.

Technical Context

This SRAM implements a synchronous flow-through architecture with a 2-bit internal burst counter that captures A[1:0] at ADSP/ADSC assertion and auto-increments on each ADV pulse. All address, data, and control inputs (except OE and ZZ) are registered on the rising edge of CLK, enabling precise timing alignment with CPU or controller buses.

The device supports two independent burst initiation paths-Processor Address Strobe (ADSP) and Controller Address Strobe (ADSC)-with priority given to ADSP when both are active. ECC encoding/decoding is fully integrated and transparent, correcting single-bit errors and detecting double-bit errors without software intervention.

Key Specifications

Pinout & Package

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

Key Features

Applications

Equivalent & Alternatives

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

Compared with AS7C361024B-133BIN and IS61WV102436BLL-133TQLI, CY7C1441KV33-133AXC uniquely integrates SEC-DED ECC with dual-voltage I/O and separate ADSP/ADSC strobes-enabling higher system reliability and flexible bus arbitration without external logic.

Availability

CY7C1441KV33-133AXC is available at Aetrix Electronics and suitable for high-reliability cache memory, network packet buffering, and industrial motion control applications requiring stable component supply across extended product lifecycles.

Supply support for CY7C1441KV33-133AXC 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

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive MCUs, memory, and security solutions.

CY7C1441KV33-133AXC belongs to Infineon's legacy Cypress synchronous SRAM product line, engineered for high-speed, low-latency memory subsystems in mission-critical computing and communications infrastructure.

FAQ

What is the function of the MODE pin on CY7C1441KV33-133AXC?

The MODE pin selects burst address sequencing: HIGH configures Intel Pentium™-style interleaved bursts (e.g., 0, 2, 4, 6), while LOW enables linear bursts (e.g., 0, 1, 2, 3). This setting is sampled asynchronously at power-up and remains static during operation unless reconfigured externally.

Does CY7C1441KV33-133AXC support both 2.5 V and 3.3 V I/O simultaneously?

No. The device uses a single VDDQ supply pin to set the I/O voltage level-either 2.5 V or 3.3 V-not both. VDDQ must be externally tied to the chosen I/O rail; mixing voltages on VDDQ will violate absolute maximum ratings and may damage the part.

How does the ZZ sleep mode affect timing and power consumption?

When ZZ is driven HIGH, the device enters a non-time-critical sleep state with data retention. Core clocks halt, output drivers disable, and supply current drops to ≤50 µA. Recovery to active operation requires ZZ LOW followed by two CLK cycles before valid reads/writes resume.

Is JTAG boundary scan enabled by default on CY7C1441KV33-133AXC?

Yes. IEEE 1149.1 JTAG is factory-enabled and active upon power-up. The TAP controller responds to TCK/TMS/TDI inputs immediately; no configuration register or fuse programming is needed. TDO is functional without external enable signals.