Infineon Technologies CY14B116L-ZS25XIT

Overview

CY14B116L-ZS25XIT from Infineon Technologies (formerly Cypress) is a 16-Mbit nonvolatile SRAM (nvSRAM) with QuantumTrap technology, organized as 2048K × 8, operating at 25 ns access time, 2.7–3.6 V supply, and –40 °C to +85 °C industrial temperature range. It performs automatic STORE on power-down using an external capacitor and supports software/hardware-triggered STORE/RECALL in systems requiring persistent memory without battery backup.

For engineers reviewing the CY14B116L-ZS25XIT datasheet, CY14B116L-ZS25XIT pinout, CY14B116L-ZS25XIT application, or CY14B116L-ZS25XIT equivalent, key selection criteria include nvSRAM endurance (1M STORE cycles), sleep mode current (10 µA), AutoStore timing compliance, ×8 bus interface compatibility, and TSOP II package footprint for legacy industrial controller upgrades.

Technical Context

This nvSRAM integrates a fast 25-ns SRAM array with parallel QuantumTrap nonvolatile storage cells-each memory cell retains data independently. STORE transfers data from SRAM to nonvolatile elements via hardware (HSB pin), software command, or automatic power-loss detection; RECALL restores data on power-up or via software.

The device uses dual CE logic in TSOP I/FBGA variants but single CE in TSOP II packages like the ZS25XIT variant. Pin-compatible ×8 configuration supports standard 8-bit microcontroller buses, with dedicated VCAP pin enabling hands-off STORE using a 4.7–10 µF tantalum capacitor.

Key Specifications

Pinout & Package

Package: 44-pin TSOP II (Thin Small Outline Package, Type II), 340 mil width, surface-mount, lead-free and RoHS compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with STK14CA8-350I5F and FM16W08-250, CY14B116L-ZS25XIT uniquely delivers 25 ns performance with full STORE/RECALL control, 20-year retention, and 10 µA sleep - making it the only option meeting simultaneous industrial timing, reliability, and power constraints in mission-critical logging.

Availability

CY14B116L-ZS25XIT is available at Aetrix Electronics and suitable for smart metering, industrial PLC data logging, and railway black box recording requiring stable component supply across extended product lifecycles.

Supply support for CY14B116L-ZS25XIT 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 systems, automotive MCUs, and reliable memory solutions for industrial and mission-critical applications.

CY14B116L-ZS25XIT belongs to Infineon's nvSRAM product line, engineered specifically for systems demanding instant nonvolatility, zero-battery operation, and seamless integration into legacy 8-bit parallel bus architectures.

FAQ

What is the role of the VCAP pin and what capacitor value is required?

The VCAP pin supplies stored energy to complete the STORE operation during VCC collapse. A 4.7 µF to 10 µF tantalum capacitor rated ≥6.3 V must be placed between VCAP and VSS, located within 5 mm of the pin. This ensures sufficient charge to retain and transfer all 16 Mbit within 20 ms after VCC drops below 2.0 V - verified per JEDEC JESD22-A114 reliability testing.

Does CY14B116L-ZS25XIT support software STORE/RECALL, and how is it implemented?

Yes - software STORE/RECALL is executed via specific address/data sequences written to the SRAM array, as defined in the datasheet's "Software Controlled STORE and RECALL" section. No additional control lines are needed; the sequence triggers internal state machines that lock the SRAM array, copy data to QuantumTrap cells (STORE), or restore it (RECALL), with HSB signaling completion.

Can this device replace standard SRAM in existing designs without layout changes?

Yes - CY14B116L-ZS25XIT is pin-compatible with industry-standard 44-pin TSOP II ×8 SRAMs (e.g., IS61LV25616AL), sharing identical A0–A20, DQ0–DQ7, CE, WE, OE, and VCC/VSS pinouts. Only VCAP addition and optional HSB routing are required; no address/data bus or timing redesign is necessary for drop-in replacement.

Is sleep mode supported in the 44-pin TSOP II package?

No - sleep mode (ZZ pin functionality) is available only in the 165-ball FBGA package variant per datasheet specification. The CY14B116L-ZS25XIT (44-pin TSOP II) does not implement the ZZ input; standby current remains at 650 µA, and active-to-standby transition is controlled solely by CE deassertion.