Infineon Technologies CY62147EV18LL-55BVXI

Overview

CY62147EV18LL-55BVXI from Cypress Semiconductor is a 4-Mbit (256 K × 16) CMOS static RAM with 55 ns access time, 1.65 V to 2.25 V supply voltage, and ultra-low standby current (max 7 µA). It implements byte-wide write control via BHE/BLE, automatic power-down on deselect, and operates in industrial temperature range (–40 °C to +85 °C), targeting battery-constrained portable memory subsystems.

For engineers reviewing the CY62147EV18LL-55BVXI datasheet, CY62147EV18LL-55BVXI pinout, CY62147EV18LL-55BVXI application, or CY62147EV18LL-55BVXI equivalent, key selection criteria include VFBGA-48 package compatibility, 16-bit data bus interface, MoBL® low-power architecture, and CE/OE/BHE/BLE timing coordination for memory expansion in space- and energy-sensitive designs.

Technical Context

This SRAM uses complementary metal oxide semiconductor (CMOS) process technology to achieve optimal balance between speed and power. Its architecture supports independent high- and low-byte write enable (BHE/BLE), enabling selective 8-bit writes without read-modify-write cycles.

The device enters automatic power-down mode when CE is HIGH or both BHE and BLE are HIGH, reducing ICC to ≤7 µA. Output pins enter high-impedance state during deselect, OE HIGH, or active write-ensuring clean bus sharing in multi-device systems.

Key Specifications

Pinout & Package

Package: 48-ball Very Fine 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 CY62147DV18LL-55BVXI, this part delivers verified 1.0 V data retention and lower standby current; versus IS61WV25616EDBLL-55BLI, it enables direct 1.8 V system integration without voltage translation, reducing BOM count and layout complexity.

Availability

CY62147EV18LL-55BVXI is available at Aetrix Electronics and suitable for wireless handset baseband memory, industrial PLC data buffering, and medical wearable sensor cache applications requiring stable component supply across long production lifecycles.

Supply support for CY62147EV18LL-55BVXI 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 programmable solutions for embedded systems, automotive, and industrial markets.

This device belongs to the MoBL® (More Battery Life™) SRAM product line, engineered specifically for ultra-low-power portable electronics where extended battery runtime and compact packaging are critical design constraints.

FAQ

What is the minimum VCC required to retain data in CY62147EV18LL-55BVXI?

The device guarantees data retention down to 1.0 V VCC, as specified in the Data Retention Characteristics table (page 6 of datasheet 38-05441 Rev. *L). At this voltage, ICCDR remains ≤5 µA, and tCDR is 0 ns-meaning retention begins immediately upon entering low-VCC mode with CE or BHE/BLE deselected.

Can CY62147EV18LL-55BVXI be used with a 1.8 V microcontroller without level shifters?

Yes. Its 1.65 V to 2.25 V VCC range and TTL-compatible input thresholds (VIH ≥ 1.4 V, VIL ≤ 0.4 V at VCC = 1.8 V) allow direct connection to 1.8 V logic families. No level shifting is needed for address, control, or data lines when VCC is set to 1.8 V.

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

Automatic power-down activates when CE is HIGH or both BHE and BLE are HIGH. All other inputs may float, but CE, BHE, and BLE must be driven to valid CMOS levels (≥VCC–0.2 V for HIGH, ≤0.2 V for LOW) to guarantee ISB1/ISB2 compliance per datasheet footnote 8.

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

Yes. The "X" suffix in CY62147EV18LL-55BVXI denotes a Pb-free, RoHS-compliant VFBGA package. Cypress confirms full compliance with EU RoHS Directive 2011/65/EU and J-STD-609A Class 1 marking for moisture sensitivity level (MSL) 3.