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Infineon Technologies CY7C1041BNV33L-12VXCT
- Part No.:
- CY7C1041BNV33L-12VXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
CY7C1041BNV33L-12VXCT.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:3,579
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Product details
Overview
CY7C1041BNV33L-12VXCT from Cypress Semiconductor is a 256 K × 16 (4,194,304-bit) asynchronous CMOS static RAM with 12 ns access time, 3.3 V supply, TTL-compatible I/O, and byte-wide write enable (BLE/BHE) for independent low/high byte control. It operates in commercial temperature range (0 °C to +70 °C) and supports automatic CE-controlled power-down for low standby current.
For engineers reviewing the CY7C1041BNV33L-12VXCT datasheet, CY7C1041BNV33L-12VXCT pinout, CY7C1041BNV33L-12VXCT application, or CY7C1041BNV33L-12VXCT equivalent, key selection criteria include tAA = 12 ns read timing, ISB2 ≤ 0.5 mA CMOS standby current, byte-selectable 16-bit I/O architecture, and SOJ/TSOP II package compatibility in memory expansion designs.
Technical Context
The device implements a full asynchronous SRAM interface with independent chip enable (CE), output enable (OE), and write enable (WE) controls, plus dual byte enables (BLE and BHE) enabling selective 8-bit writes to I/O0–I/O7 or I/O8–I/O15 without affecting the other byte lane. Address decoding covers A0–A17 (18 address lines), supporting 262,144-word addressing.
It features automatic power-down when CE is HIGH, placing outputs in high-impedance state and reducing ICC to ≤0.5 mA (ISB2) at 3.3 V. Data retention is guaranteed down to 2.0 V with ICCDR ≤ 330 μA, enabling low-power hold modes in battery-backed systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256 K × 16 (4 Mbit), mapped to A0–A17 address space |
| Access Time (tAA) | 12 ns - defines maximum clock-to-data delay in read cycles |
| Supply Voltage (VCC) | 3.3 V ± 0.3 V - requires stable low-noise 3.3 V rail; not 5 V tolerant |
| Active Current (ICC) | ≤ 190 mA - determines peak power draw during burst reads/writes |
| CMOS Standby Current (ISB2) | ≤ 0.5 mA - enables ultra-low-power sleep mode with CE HIGH |
| Data Retention Voltage | 2.0 V minimum - supports backup operation during brownout or battery switchover |
| I/O Interface | TTL-compatible - ensures direct interfacing with 3.3 V logic families without level shifters |
Pinout & Package
Package: 44-pin TSOP II (Type II, 400-mil body width) with center power/ground pinout layout; also available in 44-pin SOJ. Pin assignment validated per Cypress Document #001-06434 Rev. *D, Page 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus; selects one of 262,144 memory words |
| I/O0–I/O7 | Data I/O (Low Byte) | Bi-directional 8-bit data path enabled by BLE = LOW during read/write |
| I/O8–I/O15 | Data I/O (High Byte) | Bi-directional 8-bit data path enabled by BHE = LOW during read/write |
| CE | Chip Enable | Active LOW global select; disables outputs and triggers auto power-down when HIGH |
| OE | Output Enable | Active LOW read control; must be LOW with CE LOW and WE HIGH for valid read data |
| WE | Write Enable | Active LOW write strobe; initiates write when CE and WE both LOW |
| BLE | Byte Low Enable | Active LOW control for I/O0–I/O7; allows independent low-byte write operations |
| BHE | Byte High Enable | Active LOW control for I/O8–I/O15; allows independent high-byte write operations |
Key Features
| Feature | Design Value |
|---|---|
| 12 ns access time with 3.3 V supply | Enables integration into high-speed microcontroller buses without wait states |
| Independent byte write control (BLE/BHE) | Eliminates need for external byte masking logic in 16-bit systems |
| Automatic CE-driven power-down | Reduces standby power to ≤0.5 mA without requiring external control signals |
| 2.0 V data retention capability | Supports seamless transition to battery backup or low-voltage hold mode |
| TTL-compatible I/O levels | Permits direct connection to legacy 3.3 V microprocessors and FPGAs |
Applications
| Industrial PLC Memory Buffer | Medical Imaging Frame Store |
|---|---|
Use Scenario: Storing real-time I/O status and configuration registers in programmable logic controllers with deterministic response timing. IC Role / Device Role / Timing Role: Asynchronous SRAM buffer providing zero-wait-state access for CPU register reads and writes. Use Value: 12 ns tAA ensures sub-83 MHz bus timing compliance; byte-enable support simplifies partial register updates. | Use Scenario: Holding uncompressed grayscale image frames (e.g., 1024 × 1024 × 16-bit) during acquisition in portable ultrasound devices. IC Role / Device Role / Timing Role: Dual-port-capable frame buffer accessed via DMA engine with independent byte lanes. Use Value: BLE/BHE enables efficient 8-bit pixel packing/unpacking; 2.0 V retention preserves frame data during brief power loss. |
| Avionics Data Logger | Test Equipment Pattern Memory |
Use Scenario: Capturing sensor telemetry streams (e.g., ADC samples, GPS timestamps) in airborne black-box recorders with extended hold capability. IC Role / Device Role / Timing Role: Nonvolatile-hold SRAM used with backup battery to retain last 30 seconds of flight data. Use Value: ≤330 μA retention current at 2.0 V extends battery life; CE-controlled power-down minimizes active logging power. | Use Scenario: Storing digital stimulus/response patterns in automated test equipment (ATE) for semiconductor wafer probing. IC Role / Device Role / Timing Role: High-speed pattern memory synchronized to tester clock with precise tAA and tWC timing. Use Value: 12 ns tAA and tWC meet 83 MHz pattern rate requirements; TSOP II package supports dense PCB layout. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar asynchronous SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS7C3256B-12TIN | Same 256K×16 organization, 12 ns speed, but 3.3 V only; no byte-enable pins (single WE) | Lacks BLE/BHE - requires external gating for byte writes; simpler control but less flexible | Select if system uses full-word writes only and board space favors TSSOP package |
| IS61LV25616AL-12TLI | 12 ns, 3.3 V, 256K×16, but uses standard CE/OE/WE only - no BLE/BHE; higher ISB2 (1.5 mA) | No byte-select capability; higher standby current reduces battery life in hold mode | Choose when cost is primary constraint and byte masking is handled in FPGA logic |
Compared with AS7C3256B-12TIN and IS61LV25616AL-12TLI, CY7C1041BNV33L-12VXCT uniquely delivers true independent byte write control and lowest CMOS standby current (0.5 mA), making it optimal for power-sensitive, mixed-byte-width embedded systems requiring minimal external logic.
Availability
CY7C1041BNV33L-12VXCT is available at Aetrix Electronics and suitable for industrial PLC memory buffers, medical imaging frame stores, and avionics data loggers requiring stable component supply across long production lifecycles.
Supply support for CY7C1041BNV33L-12VXCT 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 communications markets.
This device belongs to Cypress's legacy parallel SRAM product line, engineered specifically for deterministic, low-latency, byte-selectable memory expansion in resource-constrained embedded controllers and instrumentation systems.
FAQ
Is CY7C1041BNV33L-12VXCT compatible with 5 V logic interfaces?
No. The device is strictly a 3.3 V-only part with VIH = 2.2 V minimum and VIL = 0.8 V maximum. Driving inputs above 3.6 V violates absolute maximum ratings and risks permanent damage. Level-shifting circuitry is required for interfacing with 5 V microcontrollers or FPGAs.
What is the function of the NC pins on the 44-pin TSOP II package?
Pins 19 and 20 are marked NC (No Connect) in the official pinout diagram (Document #001-06434 Rev. *D, Page 3). These pins have no internal connection and must remain unconnected - floating or tied to GND/VCC will cause undefined behavior or increased leakage.
Can BLE and BHE be asserted simultaneously for full 16-bit writes?
Yes. When both BLE and BHE are LOW while CE and WE are LOW (write mode), data on I/O0–I/O15 is written to the addressed location. This is the standard full-word write operation and is fully supported per the truth table and functional description in the datasheet.
Does this SRAM support battery backup without external circuitry?
It supports data retention down to 2.0 V, but requires external battery switchover circuitry (e.g., diode-OR or dedicated supervisor IC) to isolate VCC from main supply and apply backup voltage to VCC pin. No internal battery switch or charge control is integrated.
CY7C1041BNV33L-12VXCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-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:
- 256K x 16
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 12ns
- Access Time:
- 12 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-SOJ
CY7C1041BNV33L-12VXCT FAQ
1.How can I place an order for CY7C1041BNV33L-12VXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1041BNV33L-12VXCT 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 CY7C1041BNV33L-12VXCT reliable?
The price and inventory of CY7C1041BNV33L-12VXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1041BNV33L-12VXCT is usually 5 days.
3.What payment methods are accepted for CY7C1041BNV33L-12VXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1041BNV33L-12VXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1041BNV33L-12VXCT?
CY7C1041BNV33L-12VXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1041BNV33L-12VXCT 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 CY7C1041BNV33L-12VXCT?
For technical support, including CY7C1041BNV33L-12VXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1041BNV33L-12VXCT requirements.
6.How does Aetrix verify that CY7C1041BNV33L-12VXCT is sourced from the original manufacturer or authorized distributors?
All CY7C1041BNV33L-12VXCT 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 CY7C1041BNV33L-12VXCT meets industry standards.
7.What is the process for return or replacement of CY7C1041BNV33L-12VXCT?
All CY7C1041BNV33L-12VXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1041BNV33L-12VXCT, 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 CY7C1041BNV33L-12VXCT part is unused and in its original packaging.
Return procedure for CY7C1041BNV33L-12VXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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