Infineon Technologies CY14V104LA-BA45XI

Overview

CY14V104LA-BA45XI from Infineon Technologies (formerly Cypress) is a 4-Mbit non-volatile static RAM organized as 512 K × 8, featuring QuantumTrap® non-volatile storage, 45 ns access time, 3.0–3.6 V core supply, and 48-ball FBGA package. It performs automatic STORE on power-down using an external capacitor on VCAP, supports software/hardware-initiated STORE/RECALL, and delivers 20-year data retention with 1 million STORE cycles.

For engineers reviewing the CY14V104LA-BA45XI datasheet, CY14V104LA-BA45XI pinout, CY14V104LA-BA45XI application, or CY14V104LA-BA45XI equivalent, key selection criteria include nvSRAM configuration (×8), AutoStore timing dependency on VCAP capacitance, HSB-driven hardware store control, and dual-supply operation (VCC/VCCQ) for mixed-voltage system interfacing.

Technical Context

The device integrates SRAM and QuantumTrap non-volatile cells in each memory location, enabling parallel STORE/RECALL across all 524,288 bytes. STORE is triggered by power loss (via VCAP discharge), HSB pin assertion, or six-cycle software address sequence; RECALL occurs automatically at power-up or via software command.

It operates with separate core (VCC) and I/O (VCCQ) supplies - VCC = 3.0–3.6 V, VCCQ = 1.65–1.95 V - supporting low-voltage interface compatibility. The 48-ball FBGA (6 × 8 array, 0.8 mm pitch) supports industrial temperature range (–40 °C to +85 °C) and RoHS compliance.

Key Specifications

Pinout & Package

Package: 48-ball fine-pitch BGA (FBGA), 6 × 8 array, 0.8 mm ball pitch, body size 7.0 mm × 7.0 mm × 1.0 mm (JEDEC MO-244AC). Pinout validated per Infineon Document 001-53954 Rev. *H, Figure 1 (×8 configuration).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar non-volatile SRAM applications.

Compared with FM24V04-G and AS14V104LA-BA45X, CY14V104LA-BA45XI offers optimal balance of deterministic AutoStore timing (VCAP-dependent), industrial-grade reliability, and hardware store control - making it preferred for deterministic power-fail response in programmable controllers and safety systems.

Availability

CY14V104LA-BA45XI is available at Aetrix Electronics and suitable for industrial data loggers, railway signaling controllers, PLC I/O modules, and medical infusion pump controllers requiring stable component supply, long-lifecycle support, and guaranteed RoHS-compliant sourcing.

Supply support for CY14V104LA-BA45XI 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 AG is a German semiconductor manufacturer specializing in power management, automotive ICs, and memory solutions, with global R&D and manufacturing infrastructure.

CY14V104LA belongs to Infineon's nvSRAM product line, designed specifically for mission-critical applications requiring instant non-volatility without battery backup, deterministic power-loss response, and seamless SRAM compatibility.

FAQ

What is the minimum VCAP capacitor value required for reliable AutoStore operation?

The datasheet specifies a nominal 0.1 µF ±20 % X7R ceramic capacitor rated for ≥10 V on the VCAP pin. Using less than 0.08 µF risks incomplete STORE during rapid VCC collapse; larger values (>0.22 µF) extend STORE window but increase power-up stabilization time and board area. Tolerance and voltage derating must be verified per actual PCB layout parasitics.

Can CY14V104LA-BA45XI operate with VCCQ = 1.8 V and VCC = 3.3 V simultaneously?

Yes - the device is explicitly characterized for VCCQ = 1.65–1.95 V and VCC = 3.0–3.6 V concurrently. This dual-rail capability allows direct interfacing with 1.8 V FPGA I/O banks while maintaining robust 3.3 V core operation, eliminating level shifters in mixed-voltage designs.

Is the HSB pin mandatory for normal operation?

No - HSB is optional. If unused, it must be left unconnected or pulled HIGH via ≥10 kΩ resistor. When asserted LOW, it initiates hardware STORE only if at least one SRAM write has occurred since last STORE/RECALL; otherwise, the request is ignored and HSB remains HIGH.

How does software STORE differ from AutoStore in terms of data integrity guarantees?

Software STORE executes a full erase-then-program sequence on QuantumTrap cells and is guaranteed to complete if initiated with valid VCC/VCCQ. AutoStore relies on VCAP charge; insufficient capacitance or degraded capacitor ESR may cause partial STORE failure - hence datasheet mandates capacitor validation and recommends disabling AutoStore if VCAP is omitted.