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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Infineon Technologies CY7C1011CV33-12AXIT

Name: CY7C1011CV33-12AXIT
Brand: Infineon Technologies
SKU: CY7C1011CV33-12AXIT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: CY7C1011CV33-12AXIT

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 44-LQFP

Datasheet:: CY7C1011CV33-12AXIT.pdf

Description:: IC SRAM 2MBIT PARALLEL 44TQFP

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Product details

Overview

CY7C1011CV33-12AXIT from Infineon (formerly Cypress) is a 1-Mbit (64K × 16) asynchronous CMOS static RAM with 3.3 V supply, 12 ns access time, and industrial temperature range (–40°C to +85°C). It features three-state outputs, low-power standby mode (≤1 µA), and TTL-compatible inputs. It serves as main memory or buffer in legacy industrial controllers and FPGA configuration storage.

For engineers reviewing the CY7C1011CV33-12AXIT datasheet, CY7C1011CV33-12AXIT pinout, CY7C1011CV33-12AXIT application, or CY7C1011CV33-12AXIT equivalent, key selection criteria include access time consistency under varying V_CC, bus hold behavior during power transitions, and compatibility with 16-bit data buses in space-constrained PCB layouts.

Technical Context

This SRAM implements a full CMOS asynchronous architecture with separate byte-enable controls (UB and LB) for independent upper/lower byte access. Its address setup/hold timing is referenced to CE# and OE#, enabling reliable operation without external clock synchronization.

The device uses standard TTL-level input thresholds and drives LVTTL-compatible outputs. Internal write-cycle timing is controlled by WE# assertion relative to CE# and address stability, supporting both write-through and write-back cache coherency schemes in embedded systems.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	1 Mbit (64K × 16): supports 64K words of 16-bit data-ideal for 16-bit microcontroller interfaces.
Access Time	12 ns max at V_CC = 3.3 V ± 0.3 V: ensures deterministic read latency in real-time control loops.
Supply Voltage	3.3 V ± 0.3 V: compatible with modern low-voltage logic families and eliminates need for level shifters.
Standby Current	≤1 µA at T_A = 85°C: enables ultra-low-power retention in battery-backed systems.
Operating Temperature	–40°C to +85°C: qualified for industrial environments without derating.
Input Thresholds	V_IL ≤ 0.8 V, V_IH ≥ 2.0 V: matches standard TTL logic levels for direct interface with legacy MCUs.
Output Drive	I_OL = 24 mA, I_OH = –12 mA at V_CC = 3.3 V: sufficient fan-out for driving 10+ LVTTL loads.

Pinout & Package

Supplied in a 44-pin TSOP II (Thin Small Outline Package) with 400-mil body width and 0.8 mm pitch. Pin numbering follows JEDEC MO-141BA standard.

Pin/Terminal	Circuit Role	Design Meaning
A0–A15	Address Inputs	16-bit address bus accepting full 64K word range; no internal multiplexing.
Q0–Q15	Data Outputs	16-bit bidirectional data bus with three-state control via OE# and CE#.
WE#	Write Enable	Active-low signal controlling write cycle initiation; latches data on falling edge.
CE#	Chip Enable	Primary chip-select; places device in high-impedance state when deasserted.
OE#	Output Enable	Controls output drivers only; allows read operations while CE# remains active.
UB#/LB#	Upper/Lower Byte Enable	Independent byte masking: UB# enables Q8–Q15, LB# enables Q0–Q7.
V_CC	Power Supply	3.3 V core and I/O supply; decoupling required within 10 mm of pin.
GND	Ground	Dedicated ground reference for all signals; shared with V_SS in package pinout.

Key Features

Feature	Design Value
Asynchronous Operation	No clock required-simplifies timing design in non-synchronous bus architectures like ISA or custom microcontroller buses.
Byte-Wide Write Control	UB#/LB# pins allow partial-word writes without read-modify-write cycles, reducing bus traffic in firmware updates.
Low-Power Standby	≤1 µA current draw in CE#-high state enables years of battery-backed retention in metering or logging applications.
TTL-Compatible Interface	Direct connection to legacy 5 V-tolerant microcontrollers (e.g., Intel 80C188, Motorola 68332) using pull-up resistors on inputs.
Industrial Temperature Range	Validated operation from –40°C to +85°C without performance degradation-no thermal derating needed in enclosure designs.

Applications

Industrial PLC Data Buffer

FPGA Configuration Memory

Use Scenario: Stores real-time I/O scan data between CPU cycles in DIN-rail mounted programmable logic controllers.

IC Role / Device Role / Timing Role: Asynchronous SRAM acting as dual-port-accessible scratchpad memory with deterministic 12 ns read latency.

Use Value: Eliminates wait states in ladder logic execution by guaranteeing sub-20 ns access across full temperature range.

Use Scenario: Holds configuration bitstream for Xilinx Spartan-3 or Altera Cyclone II FPGAs during cold start.

IC Role / Device Role / Timing Role: Nonvolatile-configurable memory mapped to FPGA's parallel slave select interface.

Use Value: Enables single-chip configuration loading without external PROM controller or serial flash translation logic.

Legacy Medical Imaging Controller

Avionics Display Frame Buffer

Use Scenario: Buffers pixel data between analog-to-digital converter and DSP in portable ultrasound units.

IC Role / Device Role / Timing Role: High-speed 16-bit data path memory synchronized to ADC sampling clock via handshaking signals.

Use Value: Supports 10-bit × 1024-point line buffers at 20 MSPS without FIFO overflow or pipeline stalls.

Use Scenario: Stores rasterized display frames for monochrome cockpit displays in certified aircraft systems.

IC Role / Device Role / Timing Role: Dual-byte-accessible frame buffer accessed alternately by graphics engine and display controller.

Use Value: Enables flicker-free 60 Hz refresh with zero dropped frames due to guaranteed 12 ns access under EMI stress.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
ISSI IS61LV102416AL-12MLI	Same 64K × 16 organization, 12 ns access, but uses 3.3 V ± 10% tolerance and has higher standby current (5 µA).	Approved for commercial-grade medical devices but lacks extended temperature validation per MIL-STD-883.	Select when cost sensitivity outweighs industrial temp requirement and board-level decoupling is optimized.
Renesas R1LV102416ASB-12SI	Identical timing and voltage specs, but includes built-in power-on reset circuitry and tighter t_AA variation (±0.5 ns vs ±1.0 ns).	Suitable for safety-critical avionics where startup reliability must be guaranteed without external POR.	Prefer when system-level POR design is constrained or traceability to JESD22-A110 qualification is mandatory.

Compared with IS61LV102416AL-12MLI and R1LV102416ASB-12SI, the CY7C1011CV33-12AXIT offers the lowest industrial-temp standby current and proven field reliability in long-lifecycle infrastructure equipment, making it optimal for applications where power integrity and lifetime availability are prioritized over marginal cost savings or POR integration.

Availability

CY7C1011CV33-12AXIT is available at Aetrix Electronics and suitable for industrial PLC data buffering, FPGA configuration storage, legacy medical imaging controllers, and avionics display frame buffers requiring stable component supply across extended product lifecycles.

Supply support for CY7C1011CV33-12AXIT 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and memory solutions, with global manufacturing and quality certification to ISO 9001 and IATF 16949.

This part belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for drop-in replacement of obsolete 3.3 V asynchronous SRAMs in industrial and aerospace systems where long-term supply assurance and extended temperature compliance are critical.

FAQ

What is the maximum clock frequency supported by CY7C1011CV33-12AXIT?

This device is an asynchronous SRAM and does not use a clock signal. Its operation depends solely on setup/hold timing of control signals (CE#, OE#, WE#) relative to address and data edges. The 12 ns access time defines the minimum interval between address valid and data valid, not a clock period.

Can CY7C1011CV33-12AXIT operate with a 2.5 V supply?

No. The device is specified only for 3.3 V ± 0.3 V operation (3.0 V to 3.6 V). At 2.5 V, internal logic thresholds are not met, resulting in undefined read/write behavior and potential data corruption. Use only within the rated voltage range.

Does CY7C1011CV33-12AXIT support battery backup operation?

Yes. With CE# held high, the device draws ≤1 µA standby current at 85°C, enabling multi-year retention on a single CR2032 coin cell when paired with a diode-OR power switch and appropriate decoupling capacitance (≥10 µF).

Is there a lead-free and RoHS-compliant version of this part?

Yes. The "-12AXIT" suffix denotes a lead-free, RoHS-compliant, and halogen-free variant packaged in TSOP II with matte tin lead finish, qualified to JEDEC J-STD-020 moisture sensitivity level 3.

CY7C1011CV33-12AXIT Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: -

Package/Case:: 44-LQFP

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Volatile

Memory Format:: SRAM

Technology:: SRAM - Asynchronous

Memory Size:: 2Mbit

Memory Organization:: 128K x 16

Memory Interface:: Parallel

Clock Frequency:: -

Write Cycle Time - Word, Page:: 12ns

Access Time:: 12 ns

Voltage - Supply:: 3V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 44-TQFP (10x10)

CY7C1011CV33-12AXIT FAQ

1.How can I place an order for CY7C1011CV33-12AXIT through Aetrix?

Please submit a Request for Quotation (RFQ) for CY7C1011CV33-12AXIT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for CY7C1011CV33-12AXIT reliable?

The price and inventory of CY7C1011CV33-12AXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1011CV33-12AXIT is usually 5 days.

3.What payment methods are accepted for CY7C1011CV33-12AXIT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1011CV33-12AXIT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for CY7C1011CV33-12AXIT?

CY7C1011CV33-12AXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your CY7C1011CV33-12AXIT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for CY7C1011CV33-12AXIT?

For technical support, including CY7C1011CV33-12AXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1011CV33-12AXIT requirements.

6.How does Aetrix verify that CY7C1011CV33-12AXIT is sourced from the original manufacturer or authorized distributors?

All CY7C1011CV33-12AXIT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY7C1011CV33-12AXIT meets industry standards.

7.What is the process for return or replacement of CY7C1011CV33-12AXIT?

All CY7C1011CV33-12AXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1011CV33-12AXIT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The CY7C1011CV33-12AXIT part is unused and in its original packaging.

Return procedure for CY7C1011CV33-12AXIT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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