Infineon Technologies CY7C1010DV33-10VXI

Overview

CY7C1010DV33-10VXI from Cypress Semiconductor is a 2-Mbit (256 K × 8) high-speed CMOS static RAM with 10 ns access time, 3.3 V supply, TTL-compatible I/O, and automatic CE-controlled power-down. It operates across –40 °C to +85 °C and supports memory expansion via active-low CE, OE, and WE controls in industrial embedded systems requiring deterministic timing and low standby current.

For engineers reviewing the CY7C1010DV33-10VXI datasheet, CY7C1010DV33-10VXI pinout, CY7C1010DV33-10VXI application, or CY7C1010DV33-10VXI equivalent, key selection criteria include tAA ≤ 10 ns read access, ISB2 = 10 mA CMOS standby current, 2.0 V data retention capability, 36-pin SOJ/44-pin TSOP II package options, and compatibility with CY7C1010CV33 for drop-in replacement in legacy SRAM designs.

Technical Context

The device implements a synchronous, non-volatile-retentive static RAM architecture with full address decoding (A0–A17), bidirectional 8-bit I/O bus (I/O0–I/O7), and three-state output drivers controlled by CE, OE, and WE. Its dual-power-mode operation enables automatic transition to low-power ISB2 state when CE is deasserted.

Timing behavior is defined by strict AC parameters including tACE ≤ 10 ns (CE LOW to data valid), tDOE ≤ 5 ns (OE LOW to data valid), and tHZOE ≤ 5 ns (OE HIGH to high-Z), ensuring predictable interface timing in microcontroller and FPGA memory subsystems without external wait-state logic.

Key Specifications

Pinout & Package

Available in 36-pin SOJ and 44-pin TSOP II packages with center power/ground pinout. The -10VXI suffix denotes the 44-pin TSOP II variant with industrial temperature grade and Pb-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY7C1010CV33-10VI, CY7C1010DV33-10VXI delivers 50% lower CMOS standby current and verified 2.0 V data retention, making it superior for power-constrained industrial logging. Against AS6C4008-10TIN, it trades ultra-low ISB2 for guaranteed low-voltage retention-critical when system-level power sequencing cannot be tightly controlled.

Availability

CY7C1010DV33-10VXI is available at Aetrix Electronics and suitable for industrial PLC memory buffers, medical imaging frame stores, avionics data loggers, and test equipment pattern memories requiring stable component supply and long-term lifecycle support.

Supply support for CY7C1010DV33-10VXI 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 logic solutions for industrial, automotive, and consumer applications.

The CY7C1010D series was designed specifically for high-reliability, low-latency SRAM applications in industrial control and instrumentation systems where deterministic timing, wide temperature operation, and robust power management are essential.

FAQ

Is CY7C1010DV33-10VXI pin-compatible with CY7C1010CV33-10VI?

Yes, CY7C1010DV33-10VXI is fully pin- and function-compatible with CY7C1010CV33-10VI, sharing identical 44-pin TSOP II footprint, address/data pin mapping, and control signal assignments. However, DV33 uses an updated process that reduces ISB2 from 20 mA to 10 mA and adds verified 2.0 V data retention-no PCB change is needed for migration.

What is the maximum operating frequency supported by CY7C1010DV33-10VXI?

CY7C1010DV33-10VXI supports a maximum read/write cycle rate of 100 MHz, derived from its 10 ns tRC (read cycle time) and tWC (write cycle time). At this rate, ICC peaks at 90 mA under worst-case conditions; actual frequency depends on system timing margins, board layout, and VCC stability.

Can CY7C1010DV33-10VXI retain data at 2.0 V while fully deselected?

Yes-when CE is held HIGH and all inputs are stabilized at CMOS levels (VIN > VCC – 0.3 V or VIN < 0.3 V), the device enters ISB2 mode and reliably retains stored data down to VCC = 2.0 V, as validated in the datasheet's Data Retention Characteristics table (page 6).

Does CY7C1010DV33-10VXI require external pull-up resistors on control lines?

No-CY7C1010DV33-10VXI has TTL-compatible inputs with VIH(min) = 2.0 V and VIL(max) = 0.8 V, allowing direct connection to 3.3 V logic outputs without pull-ups. Pull-ups are only needed if driving from open-drain or weak-sourcing sources, or when implementing wired-OR logic with multiple CE/OE signals.