Infineon Technologies CY62148EV30LL-55SXI

Overview

CY62148EV30LL-55SXI from Infineon Technologies (formerly Cypress) is a 4-Mbit (512K × 8) low-power CMOS static RAM optimized for battery-constrained portable systems. It operates across 2.2 V–3.6 V, delivers 55 ns access time, supports –40 °C to +85 °C industrial/automotive-A temperature range, and achieves ultra-low standby current (7 µA max), enabling extended runtime in handheld devices.

For engineers reviewing the CY62148EV30LL-55SXI datasheet, CY62148EV30LL-55SXI pinout, CY62148EV30LL-55SXI application, or CY62148EV30LL-55SXI equivalent, key selection criteria include voltage compatibility with 2.5 V/3.3 V logic domains, TSOP II package footprint constraints, data retention at 1.5 V, CE-controlled automatic power-down behavior, and I/O pin high-impedance control during deselect/write.

Technical Context

The device implements a full CMOS SRAM architecture with independent address decoding, sense amplifiers, and complementary metal oxide semiconductor logic to achieve optimal speed-to-power ratio. Its automatic power-down mode activates when Chip Enable (CE) is HIGH, reducing ICC to ≤7 µA while retaining data down to 1.5 V VCC.

It supports three distinct operational modes: active read (CE & OE LOW, WE HIGH), active write (CE & WE LOW), and standby (CE HIGH). All eight bidirectional I/O pins enter high-impedance state during CE HIGH, OE HIGH, or write cycles-ensuring clean bus isolation without external tri-state logic.

Key Specifications

Pinout & Package

Package: 32-pin Thin Small Outline Package (TSOP II), 0.5 mm pitch, standard JEDEC MO-143AC footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61LV5128AL-10TLI and AS6C4008-55TIN, CY62148EV30LL-55SXI uniquely balances 55 ns performance with 2.2 V minimum operation, 1.5 V data retention, and 7 µA standby-making it the only option qualified for automotive-A and long-life portable applications requiring robust low-voltage resilience.

Availability

CY62148EV30LL-55SXI is available at Aetrix Electronics and suitable for portable medical monitors, automotive body control modules, and industrial PLC I/O expansion cards requiring stable component supply, long-term lifecycle assurance, and guaranteed TSOP II package continuity.

Supply support for CY62148EV30LL-55SXI 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 management, automotive MCUs, and memory solutions with emphasis on reliability and industrial-grade qualification.

CY62148EV30LL-55SXI belongs to the MoBL® (More Battery Life™) SRAM product line, engineered specifically for ultra-low-power portable and automotive applications where extended battery runtime and robust low-voltage operation are mandatory.

FAQ

Is CY62148EV30LL-55SXI pin-compatible with CY62148DV30?

Yes, CY62148EV30LL-55SXI is fully pin-compatible with CY62148DV30 in the same TSOP II package. Both share identical pin assignments for A0–A18, I/O0–I/O7, CE, OE, WE, VCC, and VSS. No PCB redesign is needed for migration, though voltage and timing specifications differ slightly-verify VCC min/max and access time requirements in final design.

What is the maximum operating frequency supported by this SRAM?

This SRAM does not operate on a clock signal; its maximum effective throughput is governed by access time and cycle timing. With 55 ns read/write cycle time, it supports sustained data transfer rates up to approximately 18.2 MHz in burst mode. System-level bandwidth depends on bus arbitration, controller latency, and whether CE/OE/WE are asserted concurrently per cycle.

Can CY62148EV30LL-55SXI retain data at 1.8 V?

Yes-data retention is guaranteed down to 1.5 V VCC, so 1.8 V is well within specification. At 1.8 V, typical data retention current (ICCDR) is ~5 µA, and retention time exceeds 10 years per JEDEC JESD22-A117. This enables reliable operation during brown-out recovery and battery-swapping sequences without data loss.

Does the TSOP II package support lead-free reflow profiles?

Yes, the 32-pin TSOP II package used for CY62148EV30LL-55SXI is RoHS-compliant and qualified for standard lead-free reflow profiles (J-STD-020D), including peak temperatures up to 260 °C for 30 seconds. Thermal resistance (θJA = 59.10 °C/W) and solder joint reliability have been validated per IPC-A-610 Class 2 requirements.