Infineon Technologies CY7C1018CV33-12VXIT

Overview

CY7C1018CV33-12VXIT from Cypress Semiconductor is a 128K × 8 (131,072 × 8) CMOS static RAM with 12 ns access time, 3.3 V ±10% supply, industrial temperature range (–40°C to +85°C), and Pb-free 32-pin SOJ package. It serves as a nonvolatile-buffered data storage element in real-time control subsystems requiring deterministic read/write timing and low-power deselected operation.

For engineers reviewing the CY7C1018CV33-12VXIT datasheet, CY7C1018CV33-12VXIT pinout, CY7C1018CV33-12VXIT application, or CY7C1018CV33-12VXIT equivalent, key selection criteria include tAA = 12 ns read latency, ISB2 = 5 mA standby current under CMOS input conditions, automatic CE-controlled power-down, and compatibility with 32-bit address/data bus expansion architectures.

Technical Context

The device implements a fully decoded 17-bit address space (A0–A16) driving a 131,072-word × 8-bit SRAM array with synchronous tri-state I/O drivers. Its dual enable architecture-active-low Chip Enable (CE) and Output Enable (OE)-enables hierarchical memory mapping and seamless bank selection in multi-SRAM systems.

Power management is handled via two distinct standby modes: ISB1 (15 mA, TTL-compatible inputs) and ISB2 (5 mA, CMOS-compatible inputs), triggered automatically when CE is HIGH. Write operations require simultaneous CE LOW and WE LOW, while reads require CE LOW, OE LOW, and WE HIGH-ensuring strict separation of data path control logic.

Key Specifications

Pinout & Package

The CY7C1018CV33-12VXIT is housed in a 32-pin, 300-mil-wide molded SOJ (Small Outline J-lead) package with center power/ground pinout for reduced noise coupling and improved signal integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar static RAM applications.

Compared with CY7C1018BV33-12VXI, the CY7C1018CV33-12VXIT offers verified Pb-free compliance and 50% lower ISB2 current; versus AS6C1008-12IN, it delivers stronger output drive and proven industrial qualification-but at higher standby power.

Availability

CY7C1018CV33-12VXIT is available at Aetrix Electronics and suitable for industrial PLC I/O buffering, medical diagnostic data acquisition, avionics sensor fusion modules, and railway signaling logic controllers requiring stable component supply across extended temperature ranges and RoHS-compliant manufacturing.

Supply support for CY7C1018CV33-12VXIT 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) is a U.S.-based semiconductor company specializing in memory, microcontrollers, and programmable system-on-chip solutions for industrial, automotive, and communications markets.

The CY7C1018C series was designed specifically for high-reliability, low-latency SRAM applications in industrial control and instrumentation systems where deterministic timing and long-term supply stability are critical.

FAQ

What is the maximum clock frequency supported by CY7C1018CV33-12VXIT?

The CY7C1018CV33-12VXIT does not use a clock; it is an asynchronous SRAM. Its maximum operational speed is defined by tRC = 12 ns read cycle time, enabling reliable interface with microprocessors or FPGAs operating up to 83 MHz bus clocks when using proper setup/hold margins and controlled trace routing.

Does CY7C1018CV33-12VXIT support battery backup operation?

Yes - the device retains data at VCC as low as 2.0 V, making it suitable for battery-backed applications. However, it requires external circuitry (e.g., diode-OR or power-fail detection) to switch between main supply and backup source; no internal battery switchover logic is integrated.

Can CY7C1018CV33-12VXIT be used in place of CY7C1018BV33-12VXI without redesign?

Yes - the devices are pin- and function-compatible per Cypress documentation. No PCB or firmware changes are needed, though users should verify that the lower ISB2 (5 mA vs. 10 mA) and Pb-free SOJ footprint meet their assembly and thermal requirements.

What is the meaning of "center power/ground pinout" in the CY7C1018CV33-12VXIT package?

It means VCC and VSS pins are positioned symmetrically near the center of each long side of the SOJ package (pins 15/16 and 24/32), reducing power distribution inductance and minimizing simultaneous switching noise compared to corner-placed supply pins.