Cypress Semiconductor Corp CY62137FV30LL-45ZSXAT

Overview

CY62137FV30LL-45ZSXAT from Cypress Semiconductor is a 2-Mbit (128 K × 16) automotive-grade CMOS static RAM with 45 ns access time, 2.2–3.6 V supply range, and –40 °C to +85 °C operating temperature (Automotive-A grade). It features byte power down, automatic power-down on deselect, and ultra-low standby current (1 µA typical). Used in infotainment head units for fast, low-power buffer memory.

For engineers reviewing the CY62137FV30LL-45ZSXAT datasheet, CY62137FV30LL-45ZSXAT pinout, CY62137FV30LL-45ZSXAT application, or CY62137FV30LL-45ZSXAT equivalent, key selection criteria include TSOP II pin compatibility with legacy CY62137 series, MoBL® low-power architecture for battery-sensitive systems, and dual-byte enable (BHE/ BLE) support for 16-bit data bus partitioning.

Technical Context

This SRAM implements a 128K × 16 asynchronous memory array with independent high- and low-byte control via BHE and BLE inputs. Its CMOS design enables deterministic timing across voltage (2.2–3.6 V) and temperature (–40 °C to +85 °C), with guaranteed tAA ≤ 45 ns and tRC = 45 ns under Automotive-A conditions.

The device uses automatic power-down logic triggered by CE HIGH or simultaneous BHE/BLE HIGH, reducing ICC to ≤5 µA max. Output drivers enter high-impedance state during deselect, OE HIGH, or write cycles - supporting clean bus sharing in multi-peripheral automotive microcontroller systems.

Key Specifications

Pinout & Package

44-pin Thin Small Outline Package (TSOP II), 0.8 mm pitch, body size 10.16 mm × 18.42 mm, lead count 44, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 128K × 16 SRAM applications.

Compared with IS61LV12816AL-10TLI and AS6C1008-55PCN, CY62137FV30LL-45ZSXAT uniquely delivers automotive qualification, true 16-bit byte-selectable interface, and MoBL® sub-5 µA standby - making it the only option for space-constrained, safety-critical automotive buffer memory.

Availability

CY62137FV30LL-45ZSXAT is available at Aetrix Electronics and suitable for infotainment head units, ADAS camera preprocessing subsystems, and telematics control units requiring stable component supply across extended automotive lifecycles.

Supply support for CY62137FV30LL-45ZSXAT 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 automotive, industrial, and IoT applications, with focus on low-power, AEC-Q100-qualified components.

This device belongs to the MoBL® (More Battery Life™) Automotive SRAM product line, engineered specifically for energy-constrained automotive ECUs requiring deterministic timing, extended temperature operation, and long-term supply stability.

FAQ

What is the maximum clock frequency supported by CY62137FV30LL-45ZSXAT?

CY62137FV30LL-45ZSXAT is an asynchronous SRAM and does not use a clock signal. Its performance is defined by access time (tAA ≤ 45 ns) and cycle time (tRC = 45 ns), enabling reliable operation with MCU bus frequencies up to ~22 MHz in worst-case timing scenarios. No external clock input is required or supported.

Does CY62137FV30LL-45ZSXAT support data retention during power loss?

Yes - the device supports data retention down to VCC = 1.5 V with ICCDR ≤ 4 µA (Automotive-A grade). When backed by a supercapacitor or small battery, it retains stored data for hours to days after main power removal, provided CE or both BHE/BLE remain asserted and VCC stays ≥1.5 V.

Can CY62137FV30LL-45ZSXAT be used in a 32-bit data bus configuration?

No - it is strictly a 16-bit-wide device (128K × 16). To interface with a 32-bit bus, two CY62137FV30LL-45ZSXAT devices must be used in parallel, with address lines shared and data lines interleaved (e.g., lower device for D0–D15, upper for D16–D31), requiring additional address decoding logic.

Is the 44-pin TSOP II package lead-free and RoHS compliant?

Yes - CY62137FV30LL-45ZSXAT uses a lead-free, RoHS-compliant TSOP II package (JEDEC MO-143AC), with matte tin-plated leads and halogen-free molding compound. The "Z" in the suffix explicitly denotes RoHS compliance per Cypress' ordering nomenclature.