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Infineon Technologies CY7C1046DV33-10VXIT
- Part No.:
- CY7C1046DV33-10VXIT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 32-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
CY7C1046DV33-10VXIT.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 32SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:3,679
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Product details
Overview
CY7C1046DV33-10VXIT from Cypress Semiconductor is a 4-Mbit (1 M × 4) 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 features tri-state I/O drivers, 2.0 V data retention, and is designed for memory expansion in embedded controllers and industrial data acquisition systems.
For engineers reviewing the CY7C1046DV33-10VXIT datasheet, CY7C1046DV33-10VXIT pinout, CY7C1046DV33-10VXIT application, or CY7C1046DV33-10VXIT equivalent, this page delivers verified timing parameters, SOJ-32 pin mapping, real-world use cases, and validated alternatives for memory subsystem design and BOM continuity planning.
Technical Context
The CY7C1046DV33-10VXIT implements a fully asynchronous SRAM architecture with independent address decoding, column/row selection, and sense amplifier array. Its operation relies on three control signals-CE (active-low chip enable), OE (active-low output enable), and WE (active-low write enable)-to manage read, write, and high-impedance states without clocking.
It supports two distinct read cycles (address- and OE-controlled) and CE-controlled write cycles, with guaranteed tAA = 10 ns, tRC = 10 ns, and tDOE = 5 ns. Data retention is maintained at VCC = 2.0 V with ISB2 ≤ 10 mA, and the device enters automatic low-power mode when CE is deasserted.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4 Mbit (1,048,576 × 4 bits); enables compact 4-bit-wide data bus interfacing without external multiplexing. |
| Access time (tAA) | 10 ns at 3.3 V; supports 100 MHz bus timing in synchronous controller interfaces with zero wait states. |
| Operating current (ICC) | 90 mA at 100 MHz; defines peak dynamic power draw for thermal budgeting in dense PCB layouts. |
| Standby current (ISB2) | 10 mA at VCC = 3.3 V, CE HIGH; enables low-power hold mode during processor sleep or system idle. |
| Data retention voltage | 2.0 V minimum; allows battery-backed operation or brown-out resilience down to safe retention threshold. |
| Input/output compatibility | TTL-compatible thresholds (VIH = 2.0 V, VOL = 0.4 V); ensures direct interfacing with legacy 3.3 V microcontrollers and FPGAs. |
| Package | 32-pin SOJ, 400-mil width, center power/ground pinout; matches JEDEC MS-012AC footprint for board-level compatibility. |
Pinout & Package
Package: 32-pin Small Outline J-Lead (SOJ), 400-mil body width, with center-aligned VCC and GND pins (pins 16 and 17) per Cypress's "revolutionary" pinout layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A19 | Address inputs | 20-bit address bus supporting full 1 M-word addressing; no internal address latching required. |
| I/O0–I/O3 | Bi-directional data lines | 4-bit parallel interface; high-impedance state asserted during CE HIGH, OE HIGH, or WE LOW. |
| CE | Chip Enable (active-low) | Primary device select; enables automatic CMOS standby (ISB2 = 10 mA) when HIGH. |
| OE | Output Enable (active-low) | Controls output driver enable; must be LOW with CE LOW and WE HIGH for valid read data. |
| WE | Write Enable (active-low) | Initiates write cycle when LOW with CE LOW; data latched on WE rising edge. |
| VCC | Power supply | 3.3 V ±0.3 V nominal; supports 2.0 V data retention mode during low-voltage hold. |
| GND | Ground reference | Two dedicated ground pins (pins 1 and 32) reduce ground bounce in high-speed switching. |
Key Features
| Feature | Design Value |
|---|---|
| Pin- and function-compatible with CY7C1046CV33 | Enables drop-in replacement in existing designs without layout or firmware changes. |
| Automatic CE-controlled power-down | Reduces standby current to 10 mA without external logic or power sequencing circuitry. |
| Tri-state I/O drivers with fast Z-state transitions | tHZOE ≤ 5 ns and tLZCE ≥ 3 ns ensure clean bus sharing in multi-device memory systems. |
| 2.0 V data retention capability | Permits extended hold time during main supply interruption using backup battery or capacitor. |
| Center VCC/GND pinout in SOJ package | Improves power delivery integrity and reduces simultaneous switching noise vs. corner-pin layouts. |
Applications
| Industrial PLC Memory Buffer | Medical Device Data Logger |
|---|---|
|
Use Scenario: Real-time buffering of sensor samples between ADC acquisition and flash storage in programmable logic controllers. IC Role / Device Role / Timing Role: Asynchronous 4-bit-wide SRAM providing zero-wait-state storage for burst-mode sampling at up to 100 MHz bus rate. Use Value: 10 ns tAA and CE-driven power-down allow deterministic latency and <10 mA idle current during scan intervals. |
Use Scenario: Temporary storage of ECG waveform segments before compression and wireless transmission in portable diagnostic equipment. IC Role / Device Role / Timing Role: Nonvolatile-hold buffer retaining critical patient data during brief power loss or battery swap. Use Value: 2.0 V data retention and 10 mA ISB2 support >24-hour hold on supercapacitor backup without refresh logic. |
| Avionics Display Frame Buffer | Test Equipment Pattern Generator |
|
Use Scenario: Storing rendered GUI frames for cockpit display units operating across –40 °C to +85 °C ambient range. IC Role / Device Role / Timing Role: Industrial-grade SRAM delivering stable 10 ns access under temperature cycling and vibration stress. Use Value: Guaranteed tAA = 10 ns over full industrial temp range eliminates frame jitter or tearing artifacts. |
Use Scenario: Holding stimulus patterns for automated circuit testing where deterministic read/write timing is mandatory. IC Role / Device Role / Timing Role: High-reliability memory with tWC = 10 ns and tSD = 5 ns enabling precise pattern sequencing at 100 MHz. Use Value: Sub-ns setup/hold margins and TTL-compatible I/O simplify FPGA interface design and reduce timing closure effort. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed asynchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ISSI IS61LV10248AL-10TLI | 8-bit wide (1 M × 8), same 10 ns access, but higher ICC = 110 mA and no 2.0 V data retention. | Requires bus-width adaptation; unsuitable for battery-backed hold scenarios. | Select only when 8-bit interface is needed and retention voltage is not required. |
| ON Semiconductor MC10ELT20DR2G | ECL-level 2-bit latch, not SRAM; incompatible architecture, different voltage domain (–5.2 V), and no memory array. | Not a functional substitute; used in high-speed signal conditioning, not data storage. | Reject for memory replacement; verify part number if cross-reference error suspected. |
Compared with IS61LV10248AL-10TLI, CY7C1046DV33-10VXIT offers lower active current and true data retention at 2.0 V, while the MC10ELT20DR2G is architecturally unrelated and cannot serve as a memory substitute.
Availability
CY7C1046DV33-10VXIT is available at Aetrix Electronics and suitable for industrial PLC memory buffers, medical data loggers, avionics display frame buffers, and test equipment pattern generators requiring stable component supply and long-term lifecycle support.
Supply support for CY7C1046DV33-10VXIT 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-reliability memory and programmable solutions for industrial, automotive, and aerospace applications, with focus on signal integrity and long-lifecycle support.
CY7C1046DV33 belongs to Cypress's legacy high-speed asynchronous SRAM product line, engineered specifically for deterministic timing, low-power hold, and robust operation in harsh environments.
FAQ
Is CY7C1046DV33-10VXIT RoHS-compliant and lead-free?
Yes. The "VXIT" suffix denotes a lead-free, RoHS-compliant 32-pin SOJ package per Cypress's ordering nomenclature. It uses matte tin lead finish and meets JEDEC J-STD-020 moisture sensitivity level 3 requirements.
What is the maximum operating frequency supported by CY7C1046DV33-10VXIT?
The device does not require a clock but supports bus frequencies up to 100 MHz, derived from its 10 ns access time (tAA) and 10 ns cycle time (tRC). Sustained operation at 100 MHz requires stable 3.3 V supply and proper termination per AC test load conditions.
Can CY7C1046DV33-10VXIT interface directly with a 5 V microcontroller?
No. Its inputs tolerate up to VCC + 0.3 V (3.6 V max), and VIH minimum is 2.0 V - insufficient for reliable 5 V TTL recognition. A level-shifting circuit or 3.3 V-compatible controller is required for safe interfacing.
Does CY7C1046DV33-10VXIT require an external refresh circuit?
No. As a static RAM, it retains data indefinitely as long as power is applied and CE remains LOW during active use. No refresh cycles, timers, or external circuitry are needed - unlike DRAM devices.
CY7C1046DV33-10VXIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 32-BSOJ (0.400", 10.16mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Volatile
- Memory Format:
- SRAM
- Technology:
- SRAM - Asynchronous
- Memory Size:
- 4Mbit
- Memory Organization:
- 1M x 4
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 10ns
- Access Time:
- 10 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-SOJ
CY7C1046DV33-10VXIT FAQ
1.How can I place an order for CY7C1046DV33-10VXIT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1046DV33-10VXIT 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 CY7C1046DV33-10VXIT reliable?
The price and inventory of CY7C1046DV33-10VXIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1046DV33-10VXIT is usually 5 days.
3.What payment methods are accepted for CY7C1046DV33-10VXIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1046DV33-10VXIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1046DV33-10VXIT?
CY7C1046DV33-10VXIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1046DV33-10VXIT 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 CY7C1046DV33-10VXIT?
For technical support, including CY7C1046DV33-10VXIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1046DV33-10VXIT requirements.
6.How does Aetrix verify that CY7C1046DV33-10VXIT is sourced from the original manufacturer or authorized distributors?
All CY7C1046DV33-10VXIT 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 CY7C1046DV33-10VXIT meets industry standards.
7.What is the process for return or replacement of CY7C1046DV33-10VXIT?
All CY7C1046DV33-10VXIT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1046DV33-10VXIT, 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 CY7C1046DV33-10VXIT part is unused and in its original packaging.
Return procedure for CY7C1046DV33-10VXIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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