Infineon Technologies CY14MB064Q2A-SXQT

Overview

CY14MB064Q2A-SXQT from Infineon Technologies is a 64-Mbit (8 MB) non-volatile static RAM (nvSRAM) with parallel interface, 3.3 V supply, and automatic STORE/RECALL on power loss. It integrates a SRAM core with on-chip lithium battery and control logic to retain data without external backup. Used in industrial PLCs, telecom line cards, and metering systems requiring instant-on, zero-latency non-volatility.

For engineers reviewing the CY14MB064Q2A-SXQT datasheet, CY14MB064Q2A-SXQT pinout, CY14MB064Q2A-SXQT application, or CY14MB064Q2A-SXQT equivalent, key selection criteria include STORE latency (<15 µs), unlimited write endurance, no external battery management, and compatibility with standard SRAM timing and bus protocols.

Technical Context

This nvSRAM operates as a drop-in replacement for battery-backed SRAM and EEPROM in mission-critical systems where data integrity during unexpected power failure is mandatory. Its internal STORE circuitry triggers automatically when VCC drops below VSWITCH (2.7 V typical), transferring SRAM contents to non-volatile storage within 15 µs.

The device supports asynchronous parallel access with 32-bit data bus width, 22-bit address space, and standard read/write cycle timing (tAA = 25 ns, tCYC = 45 ns). It features hardware STORE enable (HSE) and software STORE commands, plus an optional STORE inhibit mode for controlled data retention.

Key Specifications

Pinout & Package

Package: 84-pin TSOP-II (14 mm × 20 mm, 0.5 mm pitch), RoHS-compliant, surface-mountable with standard reflow profile.

Key Features

Applications

Equivalent & Alternatives

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

Compared with CY14B108M-BAI, this part eliminates battery logistics and reduces package height; compared with FM22L16-55-TG, it delivers 4× capacity and 2× bandwidth via parallel interface-critical for real-time control buffers requiring zero-latency access.

Availability

CY14MB064Q2A-SXQT is available at Aetrix Electronics and suitable for industrial automation, telecom infrastructure, and smart metering applications requiring stable component supply, long-lifecycle support, and guaranteed non-volatility without battery maintenance.

Supply support for CY14MB064Q2A-SXQT 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 German semiconductor manufacturer specializing in power management, automotive ICs, security solutions, and memory technologies, with global manufacturing and R&D centers.

This part belongs to Infineon's nvSRAM product line, engineered specifically for industrial and telecom systems demanding deterministic, high-endurance, battery-free non-volatility in harsh power environments.

FAQ

What is the purpose of the VCAP pin?

The VCAP pin connects to an external 0.47 µF capacitor that supplies energy during power loss to complete the STORE operation. This capacitor replaces traditional lithium batteries, enabling lead-free reflow assembly and eliminating battery-related reliability and regulatory issues. It must be placed within 5 mm of the VCAP pin with low-ESR ceramic or tantalum construction.

Does CY14MB064Q2A-SXQT require special initialization after power-up?

No initialization sequence is required. After VCC stabilizes above 2.7 V, the device behaves identically to a standard SRAM-ready for immediate read/write access. RECALL occurs automatically during power-up if non-volatile data is present, completing within 15 µs before the first valid read cycle.

Can HSE be used to trigger STORE while VCC remains stable?

Yes. Asserting HSE high forces immediate STORE regardless of VCC level, allowing firmware-controlled save operations-for example, before entering deep sleep or executing a firmware update. This mode bypasses voltage monitoring and executes STORE in ≤15 µs using charge stored on VCAP.

Is CY14MB064Q2A-SXQT compatible with standard SRAM timing controllers?

Yes. Its timing parameters-including tAA (25 ns), tCYC (45 ns), tOH (5 ns), and tWP (25 ns)-match JEDEC-standard fast SRAMs. No additional timing logic or glue components are needed; it interfaces directly with ARM Cortex-M7, XMC4800, or FPGA memory controllers configured for 3.3 V parallel SRAM.