Infineon Technologies CY62126EV30LL-55ZSXET

Overview

CY62126EV30LL-55ZSXET from Cypress Semiconductor is a 1-Mbit (64K × 16) CMOS static RAM with 55 ns access time, 2.2–3.6 V supply voltage, and industrial temperature range (–40 °C to +85 °C). It features ultra-low standby current (1 µA typical), automatic CE-controlled power-down, and byte-level write enable (BHE/ BLE) for embedded memory expansion in portable electronics.

For engineers reviewing the CY62126EV30LL-55ZSXET datasheet, CY62126EV30LL-55ZSXET pinout, CY62126EV30LL-55ZSXET application, or CY62126EV30LL-55ZSXET equivalent, this SRAM supports low-power battery-operated systems requiring deterministic read/write timing, high-impedance I/O control during deselect, and pin-compatible migration from CY62126DV30.

Technical Context

The CY62126EV30LL-55ZSXET implements a fully static 64K × 16 asynchronous SRAM array with independent byte-enable logic for I/O0–I/O7 (BLE) and I/O8–I/O15 (BHE), enabling partial-word writes without external masking. Its CE-driven automatic power-down reduces ICC to ≤4 µA when CE is HIGH, and all I/Os enter high-impedance state under any of four conditions: CE HIGH, OE HIGH, BHE/ BLE HIGH, or WE LOW.

Timing is defined by fixed-cycle parameters: tRC = 55 ns (max), tAA = 55 ns (max), tDOE = 25 ns (max), and tHZOE = 20 ns (max). The device operates across full VCC range (2.2–3.6 V) with guaranteed VOH ≥ 2.0 V at IOH = –0.1 mA and VOL ≤ 0.4 V at IOL = 0.1 mA, supporting direct interfacing with 2.5 V and 3.3 V logic families.

Key Specifications

Pinout & Package

Package: 48-ball VFBGA (5 mm × 5 mm, 0.5 mm pitch), RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61LV25616AL-10TLI and CY62126DV30LL-45ZSXIT, the CY62126EV30LL-55ZSXET delivers optimal balance of ultra-low standby power, industrial temperature resilience, and proven layout compatibility-making it preferred for cost-sensitive, battery-powered industrial and medical edge devices where 55 ns latency is acceptable.

Availability

CY62126EV30LL-55ZSXET is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial HMIs, portable medical monitors, and automotive diagnostic tools requiring stable component supply across extended product lifecycles.

Supply support for CY62126EV30LL-55ZSXET 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, with emphasis on low-power innovation and system integration.

The MoBL® (More Battery Life) SRAM product line targets portable and energy-constrained applications, delivering ultra-low ISB and automatic power-down functionality without sacrificing access speed or interface flexibility.

FAQ

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

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 temperature conditions. This allows operation during brown-out events or from backup coin cells without external voltage supervision.

Can CY62126EV30LL-55ZSXET be used with a 2.5 V microcontroller without level shifting?

Yes. The SRAM's VIH(min) is 1.8 V at VCC = 2.2–2.7 V, and VOH is ≥2.0 V at IOH = –0.1 mA - fully compatible with standard 2.5 V CMOS logic thresholds. No level-shifting circuitry is needed for direct interface with 2.5 V MCUs such as STM32L4 or MSP430FRxx.

How does automatic power-down behave when CE is held HIGH but OE is toggled?

When CE is HIGH, the device enters automatic power-down regardless of OE state. OE toggling has no effect on power state or I/O impedance - all I/Os remain in high-impedance mode, and ICC remains ≤4 µA. OE only affects output drivers when CE is LOW.

Is the 48-ball VFBGA package of CY62126EV30LL-55ZSXET compatible with standard reflow profiles?

Yes. The Pb-free VFBGA package is qualified for IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260 °C for 10–30 seconds. Thermal resistance values (θJA = 58.85 °C/W) confirm suitability for standard two-layer PCBs without additional heatsinking.