Infineon Technologies CY62137VLL-70ZSXE

Overview

CY62137VLL-70ZSXE from Cypress Semiconductor is a 2-Mbit (128K × 16) CMOS static RAM with 55 ns/70 ns access time, operating across 2.7–3.6 V and supporting industrial (–40°C to +85°C) and automotive (–40°C to +125°C) temperature ranges. It features byte-level write control via BHE/BLE, automatic CE-driven power-down reducing standby current to 1 µA, and TTL-compatible I/O for seamless integration into memory subsystems of portable telecom and embedded controllers.

For engineers reviewing the CY62137VLL-70ZSXE datasheet, CY62137VLL-70ZSXE pinout, CY62137VLL-70ZSXE application, or CY62137VLL-70ZSXE equivalent, key selection criteria include its 128K × 16 organization, dual-byte enable architecture, ultra-low ISB2 (1 µA typ.), TSOP II 44-pin package compatibility, and MoBL® low-power design for battery-critical systems.

Technical Context

The CY62137VLL-70ZSXE implements a fully static 128K × 16 RAM array with independent high- and low-byte write enables (BHE/BLE), enabling partial-word writes without read-modify-write cycles. Its CMOS core delivers 55 ns read cycle time (tRC) and supports three power states: active (ICC = 7 mA typ. at 3.6 V), automatic CE-triggered power-down (ISB2 = 1 µA typ.), and data retention mode (ICCDR = 0.5 µA at VCC = 1.0 V).

Address decoding uses A0–A16 (17-bit), driving row/column logic to access 128K words; I/O0–I/O15 are bidirectional, tri-stated during deselect (CE HIGH), OE HIGH, or write (WE LOW). The device complies with TTL voltage thresholds (VIH = 2.2 V min., VOL = 0.4 V max.) and exhibits 6 pF input / 8 pF output capacitance for stable high-speed bus interfacing.

Key Specifications

Pinout & Package

Package: 44-pin Thin Small Outline Package Type II (TSOP II), forward pinout, 0.8 mm pitch, RoHS-compliant lead-free finish (ZSXE suffix).

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS62WV12816BLL-70NLI and R1LV0216ES-70SI, the CY62137VLL-70ZSXE uniquely combines automotive qualification, 1.0 V data retention, and 1 µA ISB2-making it optimal for safety-critical, battery-backed, and thermally demanding embedded memory applications.

Availability

CY62137VLL-70ZSXE is available at Aetrix Electronics and suitable for cellular baseband processors, automotive body control modules, and industrial PLC I/O expansion cards requiring stable component supply across extended temperature and low-power constraints.

Supply support for CY62137VLL-70ZSXE 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 fabless semiconductor company specializing in high-performance memory, PSoC programmable system-on-chip, and USB/USB-C solutions.

The CY62137V series belongs to Cypress's MoBL® (More Battery Life) SRAM product line, engineered specifically for portable and energy-constrained applications where ultra-low standby current and fast wake-up from power-down are mandatory.

FAQ

What is the minimum VCC required to retain data in CY62137VLL-70ZSXE?

The device guarantees data retention down to VCC = 1.0 V (VDR parameter), with ICCDR = 0.5 µA typical at that voltage under industrial conditions. This enables use with coin-cell backup or supercapacitor hold-up circuits during main supply failure.

Can CY62137VLL-70ZSXE operate reliably at 2.7 V with 70 ns timing?

Yes-electrical characteristics tables confirm tRC = 70 ns max. and all AC/DC parameters (VOH, VOL, tAA, tDOE) are fully specified across the entire 2.7–3.6 V range, including worst-case industrial temperature conditions.

How does automatic power-down activate, and what triggers exit?

Automatic power-down activates when CE is HIGH and all address inputs remain static for >100 ns (per internal timer). Exit occurs on first address transition or CE LOW assertion, with tPD = 70 ns max. and tPU = 0 ns-ensuring immediate data access upon reselection.

Is the TSOP II package of CY62137VLL-70ZSXE compatible with standard reflow profiles?

Yes-the ZSXE suffix denotes lead-free (Pb-free) construction qualified for IPC/JEDEC J-STD-020D-compliant reflow, with peak temperature ≤260°C and ΘJA = 60°C/W on a 2-layer PCB, enabling compatibility with standard SMT assembly lines.