Cypress Semiconductor Corp CY62126EV30LL-55BVXE

Overview

CY62126EV30LL-55BVXE from Cypress Semiconductor is a 1-Mbit (64K × 16) CMOS static RAM with 55 ns access time, 2.2–3.6 V supply range, and industrial temperature rating (–40 °C to +85 °C). It features ultra-low standby current (max 4 µA), automatic CE-controlled power-down, and byte-wide I/O (I/O0–I/O7 and I/O8–I/O15) for portable memory expansion in battery-constrained systems.

For engineers reviewing the CY62126EV30LL-55BVXE datasheet, CY62126EV30LL-55BVXE pinout, CY62126EV30LL-55BVXE application, or CY62126EV30LL-55BVXE equivalent, this SRAM delivers verified low-power operation, pin-compatible upgrade path from CY62126DV30, and dual-package support (48-ball VFBGA / 44-pin TSOP II) for space- and thermal-sensitive designs.

Technical Context

The CY62126EV30LL-55BVXE implements a full CMOS 64K × 16 asynchronous SRAM array with independent byte enable (BHE/ BLE) control, enabling selective 8-bit writes without disturbing adjacent bytes. Its automatic power-down logic activates when CE is HIGH and address lines are stable, reducing ICC to ≤4 µA.

Read and write operations are fully asynchronous and controlled by CE, OE, WE, and byte enables. Output drivers enter high-impedance state during deselection (CE HIGH), OE HIGH, or write cycles (WE LOW), ensuring clean bus sharing in multi-device systems.

Key Specifications

Pinout & Package

Package: 48-ball Very Fine Pitch Ball Grid Array (VFBGA), 6 × 8 mm, 0.5 mm pitch, bottom-side solder balls.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS62WV51216BLL-55NLI and CY62126DV30LL-55ZSXI, the CY62126EV30LL-55BVXE delivers the lowest verified standby current (4 µA), VFBGA packaging for compact layouts, and industrial temperature qualification-making it optimal for next-generation portable and ruggedized systems.

Availability

CY62126EV30LL-55BVXE is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC data loggers, wireless sensor nodes, and automotive infotainment UI caches requiring stable component supply across long production lifecycles.

Supply support for CY62126EV30LL-55BVXE 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability memory and programmable solutions for industrial, automotive, and consumer electronics.

The MoBL® (More Battery Life) SRAM product line targets ultra-low-power portable systems, emphasizing sub-µA standby, wide VCC tolerance, and robust data retention down to 1.5 V.

FAQ

What is the minimum VCC required to retain data in CY62126EV30LL-55BVXE?

The device guarantees data retention down to VCC = 1.5 V, as specified in the Data Retention Characteristics table. At this voltage, ICCDR remains ≤3 µA under industrial conditions. This enables reliable holdover during brown-out events or deep-sleep modes without external backup capacitors.

Can CY62126EV30LL-55BVXE operate with mixed 2.5 V and 3.3 V I/O interfaces?

No-CY62126EV30LL-55BVXE uses a single VCC supply (2.2–3.6 V) for both core logic and I/O buffers. All inputs and outputs are referenced to this rail; interfacing with 2.5 V or 3.3 V systems requires matching VCC to the host logic voltage, not mixed-rail operation.

How does automatic power-down activate, and what signals must be stable?

Automatic power-down engages when CE is HIGH and all address inputs (A0–A15) remain static for ≥tPD (55 ns). Input pins OE, WE, BHE, and BLE may float or be held HIGH/LOW-the key condition is CE HIGH plus non-toggling addresses.

Is the 48-ball VFBGA package RoHS-compliant and lead-free?

Yes-the "BVXE" suffix denotes a Pb-free, RoHS-compliant 48-ball VFBGA package with NiPdAu surface finish. It meets JEDEC J-STD-020D moisture sensitivity level 3 and supports standard lead-free reflow profiles (peak 260 °C).