Infineon Technologies CY62128DV30LL-70ZXI

Overview

CY62128DV30LL-70ZXI from Cypress Semiconductor is a 1-Mb (128K × 8) low-voltage CMOS static RAM with 70 ns access time, 2.2–3.6 V supply range, and ultra-low standby current (1.5 µA typical). It features dual chip enables (CE1/CE2), automatic power-down on address inactivity, and high-impedance I/O control during deselect/write. Used in battery-powered portable electronics requiring nonvolatile data retention and fast random access.

For engineers reviewing the CY62128DV30LL-70ZXI datasheet, CY62128DV30LL-70ZXI pinout, CY62128DV30LL-70ZXI application, or CY62128DV30LL-70ZXI equivalent, key selection criteria include MoBL®-optimized active/standby current, TSOP-I Pb-free packaging, CE-controlled power-down timing, and compatibility with 8-bit microcontroller memory buses.

Technical Context

The device implements a full CMOS 128K × 8 SRAM array with separate row/column decoders, sense amplifiers, and data drivers. Its dual CE architecture allows hierarchical memory expansion-CE1 active-low and CE2 active-low enable independent chip selection in multi-bank systems.

Power management relies on automatic CE-triggered power-down: when CE1 is HIGH or CE2 is LOW, ICC drops to ≤1.5 µA (LL grade), and I/O pins enter high-Z state. Address toggle detection reduces dynamic current by >90% during idle cycles without software intervention.

Key Specifications

Pinout & Package

32-lead Thin Small Outline Package (TSOP Type I), Pb-free, JEDEC MO-153 compliant. Body dimensions: 11.8 mm × 10.0 mm × 1.2 mm. Pin pitch: 0.5 mm.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS62WV1288BLL-70NLI and CAT21128WI-GT3, CY62128DV30LL-70ZXI uniquely delivers sub-2V operation, automatic address-triggered power-down, and lower standby current-critical for energy-constrained portable designs where battery voltage droop and software overhead must be minimized.

Availability

CY62128DV30LL-70ZXI is available at Aetrix Electronics and suitable for portable medical devices, industrial data loggers, wireless handheld terminals, and automotive infotainment UI caches requiring stable component supply across extended product lifecycles.

Supply support for CY62128DV30LL-70ZXI 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-reliability memory and programmable solutions for industrial, automotive, and consumer applications.

CY62128DV30 belongs to the MoBL® (More Battery Life™) SRAM product line, engineered specifically for ultra-low-power portable electronics where extended battery runtime and wide V_CC tolerance are mandatory.

FAQ

What is the minimum V_CC required for reliable data retention in CY62128DV30LL-70ZXI?

The device guarantees data retention down to V_DR = 1.5 V, with typical data retention current of 3 µA at that voltage. Full functional operation requires V_CC ≥ 2.2 V, but retained data remains valid during brown-out conditions as low as 1.5 V-enabling graceful shutdown in battery-powered systems.

How does the automatic power-down feature activate, and what triggers exit from that state?

Automatic power-down activates when CE1 is HIGH or CE2 is LOW and address lines remain static for >100 µs (t_R). Exit occurs on first address transition after CE1 goes LOW and CE2 goes HIGH, with t_PU = 0 ns-ensuring immediate resumption of read/write operations without added latency.

Can CY62128DV30LL-70ZXI be used with 2.5 V logic without level shifters?

Yes. Its input thresholds (VIH = 1.8 V min at 2.2–2.7 V V_CC) and output drive (VOH ≥ 2.0 V at 2.5 V) are fully compatible with 2.5 V CMOS logic families. No level shifting is needed when interfacing with 2.5 V microcontrollers or FPGAs.

Is the TSOP-I package of CY62128DV30LL-70ZXI compatible with standard reflow profiles?

Yes. The Pb-free TSOP-I package is qualified to JEDEC J-STD-020 Class 3 moisture sensitivity and supports peak reflow temperatures up to 260°C for 30 seconds. Recommended profile follows IPC-J-STD-020D with ramp rate ≤3°C/s and time above 217°C of 60–150 seconds.