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Infineon Technologies CY7C1041BNV33L-15VXCT
- Part No.:
- CY7C1041BNV33L-15VXCT
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-BSOJ (0.400", 10.16mm Width)
- Datasheet:
-
CY7C1041BNV33L-15VXCT.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44SOJ
- Quantity:
- Payment:
- Shipping:
Inventory:2,615
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Product details
Overview
CY7C1041BNV33L-15VXCT from Cypress Semiconductor is a 256K × 16-bit (4-Mbit) high-speed CMOS static RAM with 15 ns access time, 3.3 V supply, TTL-compatible I/O, and byte-wide write enable (BLE/BHE). It supports automatic power-down when deselected and delivers 2.0 V data retention at 330 µA. Used in industrial control memory buffers requiring deterministic timing and low standby power.
For engineers reviewing the CY7C1041BNV33L-15VXCT datasheet, CY7C1041BNV33L-15VXCT pinout, CY7C1041BNV33L-15VXCT application, or CY7C1041BNV33L-15VXCT equivalent, key selection criteria include tAA = 15 ns read timing, ISB2 = 0.5 mA CMOS standby current (Commercial L version), dual-byte write capability, and SOJ-44 package compatibility with legacy SRAM sockets.
Technical Context
The CY7C1041BNV33L-15VXCT implements a synchronous, non-volatile-retentive SRAM array organized as 262,144 words × 16 bits, using full CMOS circuitry for low power and high noise immunity. Its address decoding supports A0–A17 (18-bit addressing), and I/O bidirectionality is managed via CE, OE, WE, BLE, and BHE control signals with defined truth-table modes.
It features two independent byte-enable paths: BLE controls I/O0–I/O7 (lower byte), BHE controls I/O8–I/O15 (upper byte), enabling partial-word writes without read-modify-write cycles. Power management includes automatic CE-driven power-down (ISB1/ISB2), with retention down to 2.0 V at 330 µA - verified under Commercial L temperature range (0°C to +70°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Organization | 256K × 16-bit (4,194,304 bits); enables 16-bit data bus interfacing without external multiplexing |
| Access Time (tAA) | 15 ns max; guarantees deterministic read latency for real-time industrial microcontroller interfaces |
| VCC Supply | 3.3 V ± 0.3 V; compatible with modern low-voltage logic families and eliminates level-shifting needs |
| Standby Current (ISB2) | 0.5 mA max (Commercial L); reduces system idle power in battery-backed or energy-sensitive applications |
| Data Retention Voltage | 2.0 V minimum; allows graceful degradation during brown-out events while preserving memory contents |
| I/O Capacitance | 8 pF max per pin; ensures signal integrity at 15 ns timing with minimal board-level termination |
| Operating Temperature | 0°C to +70°C; validated for commercial embedded systems including networking and instrumentation |
Pinout & Package
Package: 44-pin SOJ (400-mil body width), Pb-free, with center power/ground pinout architecture (VCC and VSS distributed across pins 16/17 and 31/32).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A17 | Address Inputs | 18-bit address bus supporting full 256K-word decoding; no address multiplexing required |
| I/O0–I/O7 | Lower Byte Data I/O | Bidirectional 8-bit data path enabled only when BLE = LOW; isolated from upper byte during partial writes |
| I/O8–I/O15 | Upper Byte Data I/O | Bidirectional 8-bit data path enabled only when BHE = LOW; supports independent upper/lower word access |
| CE | Chip Enable | Active-LOW global select; initiates automatic power-down when HIGH, reducing ICC to ISB2 |
| OE | Output Enable | Active-LOW read control; forces I/O into high-Z when HIGH, enabling bus sharing |
| WE | Write Enable | Active-LOW write strobe; combined with CE, defines write cycle boundaries per JEDEC timing |
| BLE | Byte Low Enable | Active-LOW control for lower byte (I/O0–I/O7); enables granular 8-bit writes without disturbing upper byte |
| BHE | Byte High Enable | Active-LOW control for upper byte (I/O8–I/O15); permits independent 8-bit write targeting |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent byte write control | BLE and BHE allow simultaneous or separate 8-bit writes to lower/upper data bytes - eliminates RMW overhead in firmware |
| Automatic CE power-down | Reduces ICC from 170 mA (active) to 0.5 mA (standby) without external control logic or sleep commands |
| TTL-compatible I/O levels | VIH = 2.2 V min, VIL = 0.8 V max - interoperable with 3.3 V and 5 V tolerant microcontrollers without level shifters |
| 2.0 V data retention | Maintains stored data at 330 µA draw during brown-out or backup-battery operation - critical for nonvolatile buffer use cases |
Applications
| Industrial PLC Memory Buffer | Medical Instrumentation Data Cache |
|---|---|
Use Scenario: Stores real-time sensor acquisition buffers and configuration registers in programmable logic controllers with deterministic scan-cycle timing. IC Role / Device Role / Timing Role: Asynchronous parallel SRAM providing zero-wait-state 16-bit data access synchronized to controller clock edges. Use Value: 15 ns tAA and tRC ensure sub-microsecond response to I/O scan interrupts; low ISB2 extends uptime during auxiliary power loss. | Use Scenario: Holds waveform capture buffers and calibration tables in portable ECG/EEG devices operating on regulated 3.3 V rails. IC Role / Device Role / Timing Role: Non-refreshing memory interface for ARM Cortex-M based acquisition subsystems with burst-mode DMA reads. Use Value: Dual-byte write support accelerates multi-channel sample storage; 2.0 V retention preserves patient data during battery swap. |
| Telecom Line Card Frame Buffer | Avionics Display Controller Memory |
Use Scenario: Buffers packet header metadata and QoS tagging fields in Ethernet switching line cards with strict thermal budgets. IC Role / Device Role / Timing Role: Parallel-access SRAM acting as low-latency scratchpad between MAC and switch fabric interface logic. Use Value: 8 pF I/O capacitance minimizes trace reflections at 66 MHz bus speeds; SOJ-44 footprint matches legacy telecom PCB layouts. | Use Scenario: Stores display list instructions and glyph bitmaps in certified cockpit display units where component longevity is mandated. IC Role / Device Role / Timing Role: Static memory mapped directly to FPGA video controller address space for deterministic pixel fetch timing. Use Value: Commercial L grade (0°C to +70°C) meets DO-254 environmental screening; Pb-free SOJ package satisfies RoHS aerospace requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS6C4008-15TIN | 4-Mbit (256K×16), 15 ns, 3.3 V, but uses standard SOJ pinout (non-center-power) and lacks BLE/BHE | Requires external byte-mask logic for partial writes; no 2.0 V retention mode | Choose only if board layout already accommodates standard SOJ pinout and byte masking is handled in FPGA logic |
| IS61LV25616AL-15TQLI | 4-Mbit, 15 ns, 3.3 V, SOJ-44, but no dedicated BLE/BHE - uses single WE with UB/LB pins instead | UB/LB operate identically but lack independent enable timing; retention voltage unspecified | Select when migrating from ISSI-based designs; verify timing margins on tDBE and tHZBE due to different enable architecture |
Compared with AS6C4008-15TIN and IS61LV25616AL-15TQLI, the CY7C1041BNV33L-15VXCT provides unique dual-byte write control with guaranteed 2.0 V data retention - critical for systems requiring partial-word updates and brown-out resilience without added logic or external backup.
Availability
CY7C1041BNV33L-15VXCT is available at Aetrix Electronics and suitable for industrial PLC memory buffers, medical instrumentation data caches, and telecom line card frame buffers requiring stable component supply and long-term obsolescence management.
Supply support for CY7C1041BNV33L-15VXCT 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, emphasizing signal integrity and power efficiency.
The CY7C1041BNV33 series targets deterministic, low-power parallel SRAM applications in legacy and upgrade paths where pin-compatible replacement and timing predictability are essential - especially in systems constrained by thermal envelope and voltage droop.
FAQ
What is the maximum operating current for CY7C1041BNV33L-15VXCT at 15 ns speed?
The maximum operating supply current (ICC) is 170 mA under commercial conditions (VCC = 3.6 V, f = 1/tRC = 66.7 MHz), measured with all inputs driven and outputs loaded per datasheet AC test conditions. This value reflects worst-case active power during continuous read/write cycling.
Does CY7C1041BNV33L-15VXCT support true 16-bit concurrent access?
Yes - the device supports full 16-bit bidirectional data transfer via I/O0–I/O15 when both BLE and BHE are asserted LOW. The internal array is physically organized as 256K × 16, eliminating need for external byte merging or multiplexing logic.
Can CY7C1041BNV33L-15VXCT be used in industrial temperature range applications?
No - the "L" suffix denotes Commercial L grade (0°C to +70°C). For –40°C to +85°C operation, the industrial-grade variant CY7C1041BNV33-15VXI must be used, which has higher ISB2 (8 mA) and different qualification testing.
Is the SOJ-44 package of CY7C1041BNV33L-15VXCT lead-free and RoHS compliant?
Yes - the "X" in the suffix "VXCT" explicitly indicates Pb-free (lead-free) construction, and the device complies with RoHS Directive 2011/65/EU. The package uses matte tin terminations and meets JEDEC J-STD-020 moisture sensitivity level 3.
CY7C1041BNV33L-15VXCT 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:
- 15ns
- Access Time:
- 15 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-15VXCT FAQ
1.How can I place an order for CY7C1041BNV33L-15VXCT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1041BNV33L-15VXCT 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-15VXCT reliable?
The price and inventory of CY7C1041BNV33L-15VXCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1041BNV33L-15VXCT is usually 5 days.
3.What payment methods are accepted for CY7C1041BNV33L-15VXCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1041BNV33L-15VXCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1041BNV33L-15VXCT?
CY7C1041BNV33L-15VXCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1041BNV33L-15VXCT 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-15VXCT?
For technical support, including CY7C1041BNV33L-15VXCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1041BNV33L-15VXCT requirements.
6.How does Aetrix verify that CY7C1041BNV33L-15VXCT is sourced from the original manufacturer or authorized distributors?
All CY7C1041BNV33L-15VXCT 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-15VXCT meets industry standards.
7.What is the process for return or replacement of CY7C1041BNV33L-15VXCT?
All CY7C1041BNV33L-15VXCT units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1041BNV33L-15VXCT, 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-15VXCT part is unused and in its original packaging.
Return procedure for CY7C1041BNV33L-15VXCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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