Infineon Technologies CY62128EV30LL-45ZAXIT

Overview

CY62128EV30LL-45ZAXIT from Cypress Semiconductor is a 1-Mbit (128K × 8) CMOS static RAM with 45 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 power-down on chip deselect, and pin compatibility with CY62128DV30 - used in battery-powered portable electronics requiring fast, low-power memory.

For engineers reviewing the CY62128EV30LL-45ZAXIT datasheet, CY62128EV30LL-45ZAXIT pinout, CY62128EV30LL-45ZAXIT application, or CY62128EV30LL-45ZAXIT equivalent, key selection criteria include access timing under 45 ns, sub-2 µA standby current at 3.6 V, dual chip enable (CE1/CE2) logic for hierarchical memory mapping, and STSOP-32 package compatibility with space-constrained PCB layouts.

Technical Context

The CY62128EV30LL-45ZAXIT implements a fully static 128K × 8 memory array with complementary metal oxide semiconductor (CMOS) process technology optimized for speed-power trade-off. Its dual CE architecture (CE1 active-low, CE2 active-high) enables seamless bank selection in multi-chip memory systems without external logic.

Automatic power-down activates when CE1 is HIGH or CE2 is LOW, reducing ICC to ≤4 µA while maintaining data retention down to 1.5 V. All eight I/O pins enter high-impedance state during deselect, OE HIGH, or write cycles - ensuring clean bus sharing in shared-data-path architectures.

Key Specifications

Pinout & Package

Package: 32-pin Shrunk Thin Small Outline Package (STSOP), 8.0 mm × 13.4 mm body, 0.5 mm pitch, lead-free (RoHS-compliant).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS62WV1288BLL-45NLI and NVMFS128K8PLFT, the CY62128EV30LL-45ZAXIT delivers superior flexibility in memory hierarchy design via dual CE, wider voltage tolerance for battery-decay scenarios, and lowest standby current - making it optimal for portable, energy-constrained systems where deterministic volatility is acceptable.

Availability

CY62128EV30LL-45ZAXIT is available at Aetrix Electronics and suitable for portable medical monitors, industrial PLC data buffers, and automotive infotainment systems requiring stable component supply, long-lifecycle support, and RoHS-compliant packaging.

Supply support for CY62128EV30LL-45ZAXIT 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-performance, low-power memory and microcontroller solutions for embedded systems, with headquarters in San Jose, CA.

The MoBL® (More Battery Life) SRAM product line targets portable and energy-sensitive applications, emphasizing ultra-low standby current, wide voltage operation, and compact packaging - directly addressing design constraints in wearables, medical devices, and IoT endpoints.

FAQ

What is the minimum VCC required to retain data in CY62128EV30LL-45ZAXIT?

Data retention is guaranteed down to 1.5 V, as specified in the Data Retention Characteristics table (VDR = 1.5 V min). At this voltage, ICCDR remains ≤3 µA, enabling extended hold time during brown-out conditions. The device maintains stored data without refresh as long as VCC stays ≥1.5 V and CE1/CE2 remain in deselect state.

How does the dual CE architecture (CE1 and CE2) function in practice?

CE1 is active-low and CE2 is active-high; both must be asserted simultaneously (CE1 = LOW, CE2 = HIGH) for the device to be selected. This AND-gated logic allows hierarchical memory mapping - e.g., one FPGA GPIO drives CE2 globally while multiple CE1 lines select individual SRAMs, reducing address decoder complexity.

Can CY62128EV30LL-45ZAXIT operate reliably at 2.2 V across the full industrial temperature range?

Yes - the Electrical Characteristics table explicitly specifies operation from 2.2 V to 3.6 V over –40 °C to +85 °C. At 2.2 V, VIH is defined as 1.8 V min and VOL remains ≤0.4 V, ensuring robust noise margins. AC timing parameters (e.g., tRC = 45 ns) are guaranteed across this full voltage and temperature envelope.

Is the STSOP-32 package of CY62128EV30LL-45ZAXIT compatible with standard TSOP-32 PCB footprints?

No - STSOP (Shrunk TSOP) has identical pin count but smaller body dimensions (8.0 × 13.4 mm vs. TSOP-I's 10.16 × 20.0 mm) and tighter 0.5 mm pitch. It requires dedicated STSOP-32 land pattern per Cypress package drawing 001-85211. Mechanical interference and solder joint reliability will be compromised if substituted into a TSOP-32 layout.