Infineon Technologies CY7C1041G30-10ZSXI
- Part No.:
- CY7C1041G30-10ZSXI
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 44-TSOP (0.400", 10.16mm Width)
- Datasheet:
-
CY7C1041G30-10ZSXI.pdf
- Description:
- IC SRAM 4MBIT PARALLEL 44TSOP II
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
CY7C1041G30-10ZSXI from Infineon Technologies (formerly Cypress) is a 4-Mbit (256K × 16-bit) CMOS static RAM with embedded single-bit error-correcting code (ECC), operating at 10 ns access time over 2.2 V–3.6 V supply, featuring TTL-compatible I/Os, ERR output pin for error indication, and low standby current (6 mA typical). It serves as main memory or buffer in industrial control systems requiring data integrity under radiation-prone or long-term reliability conditions.
For engineers reviewing the CY7C1041G30-10ZSXI datasheet, CY7C1041G30-10ZSXI pinout, CY7C1041G30-10ZSXI application, or CY7C1041G30-10ZSXI equivalent, key selection criteria include ECC-enabled read integrity, 10 ns timing at 3.0 V, 44-pin TSOP II package compatibility, and industrial-grade temperature range (–40 °C to +85 °C).
Technical Context
This SRAM integrates on-die ECC encoding/decoding logic that detects and corrects single-bit errors during every read cycle without external circuitry. The ERR pin asserts HIGH upon successful correction, enabling system-level fault logging. Address decoding covers A0–A17 (18-bit), supporting full 256K-word addressing.
It uses dual-byte write enables (BHE/BLE) for independent upper/lower byte writes and supports high-impedance I/O tri-state control via CE, OE, BHE, and BLE. Data retention is guaranteed down to 1.0 V, and operation spans three voltage ranges-this part is specifically rated for 2.2 V–3.6 V with 10 ns tAA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 4 Mbit (256K words × 16-bit); provides 512 KB of parallel-access data storage |
| Access time (tAA) | 10 ns at VCC = 3.0 V; enables integration into 100 MHz bus systems with zero wait states |
| ECC capability | Single-bit error detection and correction per read cycle; no automatic write-back required |
| Supply voltage range | 2.2 V–3.6 V; compatible with 3.3 V logic domains and mixed-voltage board designs |
| Standby current (ISB2) | 6 mA typical at VCC = 3.0 V; reduces power in idle states for battery-backed or energy-sensitive systems |
| Operating temperature | –40 °C to +85 °C (Industrial grade); validated for use in factory automation and transportation electronics |
| Package | 44-pin TSOP II (ZSXI suffix); surface-mount, JEDEC-standard footprint with 0.8 mm pitch |
Pinout & Package
44-pin TSOP II (Thin Small Outline Package, Type II), 400 mil width, 0.8 mm lead pitch, RoHS-compliant Pb-free construction. Pin 1 marked by notch or dot; pin 1 is /OE (Output Enable), located at top-left corner when notch faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CE | Chip Enable (active LOW) | Global device select; all I/Os enter high-Z when HIGH, disabling memory access |
| /OE | Output Enable (active LOW) | Controls read data output enable; must be LOW with /CE LOW to drive I/O0–I/O15 |
| /WE | Write Enable (active LOW) | Initiates write cycle; data latched on rising edge of /WE when /CE and address stable |
| /BHE | Byte High Enable (active LOW) | Enables write/read of I/O8–I/O15 (upper byte); used for 8-bit bus interfacing |
| /BLE | Byte Low Enable (active LOW) | Enables write/read of I/O0–I/O7 (lower byte); supports partial-word transfers |
| ERR | Error indication output | Open-drain HIGH pulse indicates single-bit error detected and corrected during last read |
| A0–A17 | Address inputs | 18-bit address bus; selects one of 256K locations; A0 = LSB, A17 = MSB |
| I/O0–I/O15 | Bidirectional data bus | 16-bit parallel interface; tristated when /CE HIGH or /OE HIGH |
Key Features
| Feature | Design Value |
|---|---|
| Embedded ECC engine | On-chip encoder/decoder performs real-time single-bit correction per read without CPU overhead |
| ERR output signaling | Dedicated open-drain pin reports correction events to host controller for diagnostic logging |
| Multi-voltage support | Validated across 2.2 V–3.6 V range; eliminates need for level shifters in 3.3 V systems |
| Low-power standby mode | ISB2 = 6 mA typical ensures minimal leakage during system sleep or hibernation |
| 1.0 V data retention | Maintains stored data at reduced voltage, enabling backup via supercapacitor or coin cell |
Applications
| Industrial PLC Memory Buffer | Railway Signaling Data Storage |
|---|---|
|
Use Scenario: Storing configuration and runtime state in programmable logic controllers deployed in factory environments with EMI and thermal cycling. IC Role / Device Role / Timing Role: Primary 16-bit parallel SRAM with ECC protection for volatile program data and I/O mapping tables. Use Value: Prevents silent data corruption in deterministic control loops; ERR signal triggers firmware-initiated redundancy checks. |
Use Scenario: Holding safety-critical train position and interlocking data in wayside signaling units operating continuously for >15 years. IC Role / Device Role / Timing Role: Non-refreshed, error-resilient memory for fail-safe state registers and event logs. Use Value: Single-bit ECC meets SIL-2 requirements for data integrity; 10 ns access supports real-time response to track occupancy changes. |
| Medical Imaging Frame Buffer | Avionics Display Cache |
|
Use Scenario: Temporary storage of digitized X-ray or ultrasound frames before compression and transfer to host processor. IC Role / Device Role / Timing Role: High-speed, wide-bus SRAM acting as pixel pipeline buffer between ADC and FPGA image processor. Use Value: 16-bit bus width matches sensor output; ECC prevents undetected pixel corruption affecting diagnostic accuracy. |
Use Scenario: Caching navigation and terrain data in cockpit display units where bit flips could misrepresent flight path. IC Role / Device Role / Timing Role: On-board memory for map tile preloading and symbol rendering in DO-254-certified hardware. Use Value: ERR pin feeds health monitoring subsystem; 10 ns latency ensures smooth 60 Hz display refresh without frame stutter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ECC SRAM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AS7C34098B-10TIN | No integrated ECC; requires external logic or software for error handling; 10 ns access at 3.3 V | Lacks hardware-level error reporting; unsuitable for safety-critical systems without added validation layers | Select only if cost sensitivity outweighs ECC requirement and system-level error mitigation is already implemented |
| IS61WV25616EDBLL-10MLI | 256K × 16-bit, 10 ns, no ECC; lower standby current (2 µA), but no ERR pin or correction logic | Used in non-safety applications like consumer displays; lacks fault visibility needed for diagnostics | Choose when ultra-low power dominates design priority and data integrity is managed externally |
Compared with AS7C34098B-10TIN and IS61WV25616EDBLL-10MLI, CY7C1041G30-10ZSXI uniquely delivers autonomous, observable ECC correction in a drop-in 44-pin TSOP II footprint-enabling certified reliability without architectural redesign.
Availability
CY7C1041G30-10ZSXI is available at Aetrix Electronics and suitable for industrial PLC memory buffers, railway signaling data storage, and medical imaging frame buffers requiring stable component supply across extended product lifecycles.
Supply support for CY7C1041G30-10ZSXI 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 acquired Cypress Semiconductor in 2020 and maintains its legacy SRAM portfolio with full technical and supply-chain continuity.
CY7C1041G30-10ZSXI belongs to Cypress's G-series ECC SRAM product line, designed specifically for mission-critical industrial and transportation systems demanding hardware-enforced data integrity without performance penalty.
FAQ
Does CY7C1041G30-10ZSXI require external ECC logic?
No. It contains fully integrated ECC encoding and decoding circuitry. Single-bit errors are automatically detected and corrected on every read cycle using on-die parity and syndrome logic. The ERR pin signals correction events, eliminating need for external Hamming code generators or checking circuits.
What is the function of the ERR pin, and how is it driven?
The ERR pin is an open-drain output that asserts HIGH (pulled up externally) for one clock cycle after a single-bit error is corrected during a read. It remains LOW otherwise. No pull-up resistor is internal; a 4.7 kΩ external pull-up to VCC is required per datasheet Figure 14 and Truth Table on page 14.
Can CY7C1041G30-10ZSXI operate at 1.8 V?
No. This variant (G30 suffix) is specified only for 2.2 V–3.6 V operation. The 1.65 V–2.2 V speed grade is designated CY7C1041G18; attempting 1.8 V operation on CY7C1041G30-10ZSXI violates electrical specifications and may cause timing violations or ECC failure.
Is the 44-pin TSOP II package lead-free and RoHS compliant?
Yes. The "ZSXI" suffix denotes Pb-free, RoHS-compliant 44-pin TSOP II packaging. Lead finish is matte tin, qualified per J-STD-020 moisture sensitivity level 3 (MSL-3), and compatible with standard reflow profiles including JEDEC J-STD-020D.
CY7C1041G30-10ZSXI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 44-TSOP (0.400", 10.16mm Width)
- Packaging:
- Tray
- Product Status:
- Active
- 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:
- 10ns
- Access Time:
- 10 ns
- Voltage - Supply:
- 2.2V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 44-TSOP II
CY7C1041G30-10ZSXI FAQ
1.How can I place an order for CY7C1041G30-10ZSXI through Aetrix?
Please submit a Request for Quotation (RFQ) for CY7C1041G30-10ZSXI 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 CY7C1041G30-10ZSXI reliable?
The price and inventory of CY7C1041G30-10ZSXI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY7C1041G30-10ZSXI is usually 5 days.
3.What payment methods are accepted for CY7C1041G30-10ZSXI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY7C1041G30-10ZSXI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY7C1041G30-10ZSXI?
CY7C1041G30-10ZSXI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY7C1041G30-10ZSXI 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 CY7C1041G30-10ZSXI?
For technical support, including CY7C1041G30-10ZSXI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY7C1041G30-10ZSXI requirements.
6.How does Aetrix verify that CY7C1041G30-10ZSXI is sourced from the original manufacturer or authorized distributors?
All CY7C1041G30-10ZSXI 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 CY7C1041G30-10ZSXI meets industry standards.
7.What is the process for return or replacement of CY7C1041G30-10ZSXI?
All CY7C1041G30-10ZSXI units undergo pre-shipment inspection (PSI). If there is an issue with CY7C1041G30-10ZSXI, 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 CY7C1041G30-10ZSXI part is unused and in its original packaging.
Return procedure for CY7C1041G30-10ZSXI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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