Infineon Technologies CY7C1041G30-10ZSXET

Overview

CY7C1041G30-10ZSXET from Infineon Technologies (formerly Cypress) is an AEC-Q100 qualified automotive-grade 4-Mbit static RAM with embedded ECC, organized as 256K × 16-bit. It delivers 10 ns access time, operates from 2.2 V to 3.6 V, and supports –40 °C to +125 °C (Automotive-E grade), targeting safety-critical memory buffering in ADAS domain controllers.

For engineers reviewing the CY7C1041G30-10ZSXET datasheet, CY7C1041G30-10ZSXET pinout, CY7C1041G30-10ZSXET application, or CY7C1041G30-10ZSXET equivalent, key selection criteria include ECC-enabled single-bit error correction, dual-byte write control (BHE/ BLE), TTL-compatible I/Os, and VFBGA-48 packaging for high-density automotive PCB layouts.

Technical Context

The CY7C1041G30-10ZSXET integrates a dedicated ECC encoder/decoder block that detects and corrects single-bit errors in real time without automatic write-back. Its memory array uses CMOS fast SRAM architecture with row/column decoding and sense amplifiers optimized for deterministic 10 ns tAA timing under automotive voltage and temperature stress.

Control logic implements hierarchical enable hierarchy: CE asserts chip select, OE enables read output drivers, WE initiates writes, and BHE/ BLE independently gate upper/lower byte lanes (I/O8–I/O15 and I/O0–I/O7). All I/Os enter HI-Z when CE is HIGH or during standby, minimizing bus contention in multi-device systems.

Key Specifications

Pinout & Package

Package: 48-ball VFBGA (ball pitch = 0.5 mm, body size = 6.0 mm × 8.0 mm), RoHS-compliant and Pb-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV25616EDBLL-10MLI and MT45W8MW16BGX-107 IT:A, CY7C1041G30-10ZSXET uniquely delivers certified ECC correction in a true SRAM interface, eliminating external safety logic and refresh overhead-critical for deterministic automotive real-time performance.

Availability

CY7C1041G30-10ZSXET is available at Aetrix Electronics and suitable for ADAS sensor fusion hubs, engine control units, and V2X communication modules requiring stable component supply across extended automotive temperature ranges and long production lifecycles.

Supply support for CY7C1041G30-10ZSXET 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 is a global semiconductor leader headquartered in Munich, Germany, specializing in power management, automotive ICs, and security solutions.

CY7C1041G30-10ZSXET belongs to Infineon's automotive SRAM product line, engineered specifically for functional safety compliance (ISO 26262) and high-reliability operation in harsh vehicular environments.

FAQ

Does CY7C1041G30-10ZSXET support automatic error correction write-back?

No. The device performs real-time single-bit error correction on read operations but does not automatically rewrite corrected data to the memory array. Error detection flags are not exposed externally, and correction occurs transparently within the ECC decoder path without CPU intervention or bus signaling.

What is the maximum clock frequency supported for continuous read/write cycling?

The CY7C1041G30-10ZSXET has no internal clock; it is an asynchronous SRAM. Maximum sustained operation is governed by tRC = 10 ns, enabling up to 100 MHz random-access throughput when interfaced with a controller capable of meeting setup/hold timing constraints for CE, OE, WE, and address transitions.

Can BHE and BLE be used simultaneously for full 16-bit writes?

Yes. Asserting both BHE and BLE LOW while CE and WE are LOW enables full 16-bit parallel writes to I/O0–I/O15. This is the standard mode for word-aligned memory stores and matches the behavior of conventional 16-bit SRAMs without byte masking.

Is the 48-ball VFBGA package compatible with standard reflow profiles for lead-free assembly?

Yes. The CY7C1041G30-10ZSXET's Pb-free VFBGA package is qualified for IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260 °C for 30 seconds, and supports standard solder paste printing and placement processes used in automotive electronics manufacturing.