Infineon Technologies CY62148DV30LL-70ZSXAT

Overview

CY62148DV30LL-70ZSXAT from Cypress Semiconductor is a 4-Mbit (512K × 8) MoBL® CMOS static RAM with 70 ns access time, 2.2–3.6 V supply range, and industrial temperature rating (–40°C to +85°C). It features ultra-low active current (1.5 mA @ 1 MHz), standby current as low as 2 µA, and automatic CE-controlled power-down-designed for battery-sensitive portable systems including handheld medical monitors and IoT edge nodes.

For engineers reviewing the CY62148DV30LL-70ZSXAT datasheet, CY62148DV30LL-70ZSXAT pinout, CY62148DV30LL-70ZSXAT application, or CY62148DV30LL-70ZSXAT equivalent, this page delivers verified package mapping (32-pin TSOP II), functional pin roles, real-world timing behavior, and validated alternative options for memory subsystem design.

Technical Context

The CY62148DV30LL-70ZSXAT implements a full CMOS 512K × 8 SRAM array with asynchronous parallel interface logic. Its dual-power-state architecture enables seamless transition between active read/write (CE/OE/WE control) and automatic standby (CE HIGH), with guaranteed tRC = 70 ns and tHZOE = 25 ns at VCC = 3.6 V.

It supports three-state I/O (IO0–IO7) with independent OE and WE control, address latching via A0–A18 (19-bit), and data retention down to VCC = 1.5 V. The device complies with JEDEC-standard TSOP II mechanical dimensions and Pb-free RoHS requirements per ordering code ZSXAT.

Key Specifications

Pinout & Package

Package: 32-pin TSOP II (Type II, 12.0 mm × 20.0 mm × 1.2 mm), Pb-free, RoHS-compliant (ordering suffix ZSXAT).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS62WV5128BLL-70NLI and R1LV5256ES-70P-E, the CY62148DV30LL-70ZSXAT uniquely combines 2.2 V operation, 2 µA standby, automotive-A qualification, and native TSOP II packaging-making it optimal for battery-constrained, thermally demanding, and safety-aware embedded systems.

Availability

CY62148DV30LL-70ZSXAT is available at Aetrix Electronics and suitable for wearable health monitors, industrial PLC data loggers, smart meter communication modules, and automotive telematics gateways requiring stable component supply across extended product lifecycles.

Supply support for CY62148DV30LL-70ZSXAT 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) is a U.S.-based semiconductor company specializing in high-reliability memory, PSoC programmable systems, and USB/USB-C solutions.

The MoBL® (More Battery Life™) SRAM product line was engineered specifically for ultra-low-power portable electronics, emphasizing sub-µA standby, wide-VCC tolerance, and robust data retention during voltage collapse.

FAQ

What is the minimum VCC required to retain data in CY62148DV30LL-70ZSXAT?

Data retention is guaranteed down to VCC = 1.5 V (VDR parameter), with ICCDR = 6 µA typical at that voltage. This allows the device to preserve memory contents during brown-out conditions or deep sleep modes where main supply drops but backup rail remains above 1.5 V. No external capacitor or hold-up circuit is required for retention at this level.

Does CY62148DV30LL-70ZSXAT require external pull-up resistors on OE or WE pins?

No. All control inputs (CE, OE, WE) are CMOS-compatible with TTL-level thresholds and do not require external pull-ups. VIH(min) is 1.8 V at VCC = 2.2–2.7 V and 2.2 V at VCC = 2.7–3.6 V; VIL(max) is 0.6 V or 0.8 V depending on VCC range. Microcontroller GPIOs driving these pins at 3.3 V or 2.5 V meet input specs directly.

Can CY62148DV30LL-70ZSXAT be used in place of CY62148DV30LL-55ZSXI?

Yes-pinout, voltage range, and logic interface are identical. The only difference is access time: 70 ns vs. 55 ns. Systems designed for ≥70 ns timing margins will function correctly; those relying on 55 ns performance may experience read/write setup violations. No PCB or firmware changes are needed for drop-in substitution in non-critical timing paths.

Is the 32-pin TSOP II package of CY62148DV30LL-70ZSXAT compatible with standard JEDEC JESD-22-A113 reflow profiles?

Yes. The ZSXAT variant uses Pb-free terminations and meets JEDEC J-STD-020D moisture sensitivity level 3 (MSL-3). Recommended peak reflow temperature is 260°C for ≤60 seconds, with ramp rates ≤3°C/s pre- and post-peak. Thermal resistance ΘJA = 75.13°C/W (TSOP II) confirms suitability for standard FR-4 PCB layouts with minimal copper pour.