Infineon Technologies CY62148EV30LL-45BVI

Overview

CY62148EV30LL-45BVI from Infineon Technologies (formerly Cypress) is a 4-Mbit (512K × 8) CMOS static RAM with 45 ns access time, 2.2–3.6 V supply range, and industrial/automotive-A temperature rating (–40 °C to +85 °C). It delivers ultra-low standby current (2.5 µA typ), active current of 3.5 mA at 1 MHz, and automatic CE-controlled power-down-enabling battery-critical MoBL® applications such as portable medical monitors and automotive telematics modules.

For engineers reviewing the CY62148EV30LL-45BVI datasheet, CY62148EV30LL-45BVI pinout, CY62148EV30LL-45BVI application, or CY62148EV30LL-45BVI equivalent, key selection criteria include verified 45 ns read cycle time, guaranteed 7 µA max ISB2 across industrial temp, VFBGA-36 package compatibility, and functional equivalence to CY62148DV30 in memory expansion designs.

Technical Context

This SRAM implements a synchronous, non-volatile-retention-free CMOS architecture with independent address/data bus separation, full static operation (no refresh required), and dual-active control logic for CE/OE/WE. Its internal sense amplifier array and low-threshold transistors enable sub-50 ns tAA while maintaining <6 mA ICC at fmax under 3.6 V.

The device supports three distinct power states: active (CE/OE LOW, WE HIGH for read; CE/WE LOW for write), standby (CE HIGH), and data retention (VCC ≥ 1.5 V, CE HIGH). Tri-state output control is enforced via OE and CE, with tHZOE ≤ 18 ns and tLZCE = 10 ns-critical for high-speed bus arbitration in multi-SRAM systems.

Key Specifications

Pinout & Package

Package: 36-ball Very Fine-Pitch Ball Grid Array (VFBGA), 6 mm × 8 mm, 0.5 mm pitch, RoHS-compliant, Pb-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS62WV5128BLL-45NLI and CY62148EV30LL-45BVIT, the CY62148EV30LL-45BVI uniquely combines 2.2–3.6 V operation, VFBGA-36 packaging, and 7 µA max ISB2-making it the only option for space-constrained, wide-input-voltage, low-power embedded systems requiring guaranteed industrial temperature performance.

Availability

CY62148EV30LL-45BVI is available at Aetrix Electronics and suitable for portable medical monitors, automotive telematics units, and industrial PLC I/O expansion cards requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant VFBGA packaging.

Supply support for CY62148EV30LL-45BVI 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 German semiconductor leader specializing in power management, automotive ICs, and memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

This device belongs to the MoBL® (More Battery Life™) SRAM product line, engineered specifically for ultra-low-power, wide-voltage, industrial-grade memory applications in portable and automotive electronics.

FAQ

What is the minimum VCC required to retain data in CY62148EV30LL-45BVI?

The device guarantees data retention down to VCC = 1.5 V when CE is held HIGH, as specified in the Data Retention Characteristics table (page 6 of datasheet 38-05576 Rev. *X). Below 1.5 V, data integrity is not assured-even with CE HIGH-and retention time becomes unpredictable. This threshold enables operation during brown-out conditions common in battery-powered systems.

Can CY62148EV30LL-45BVI be used with a 1.8 V I/O interface?

No. The input voltage thresholds (VIH/VIL) are defined relative to VCC, not fixed logic levels. With VCC ≥ 2.2 V, VIH minimum is 1.8 V (for VCC = 2.2–2.7 V) or 2.2 V (for VCC = 2.7–3.6 V). A 1.8 V interface cannot reliably meet VIH requirements unless VCC is reduced to 2.2 V-but even then, VOL and VOH margins degrade significantly per Electrical Characteristics table (page 4).

Does CY62148EV30LL-45BVI require an external clock signal?

No. As a static RAM, it operates asynchronously-timing is controlled solely by CE, OE, and WE signal edges. No clock input is present or needed. All read/write operations are initiated and completed based on setup/hold timing relationships between address, control, and data signals, as defined in the Switching Characteristics table (page 7).

What is the maximum junction temperature during continuous operation?

Based on thermal resistance θJA = 44.79 °C/W (VFBGA) and maximum ICC = 20 mA at 3.6 V, power dissipation is ≤72 mW. With 25 °C ambient, junction temperature rise is ≤3.2 °C-well below the absolute maximum rating of +125 °C. Derating is only required above 85 °C ambient, where θJA increases due to reduced convection.