Infineon Technologies CY62136VNLL-70ZSXET

Overview

CY62136VNLL-70ZSXET from Cypress Semiconductor is a 2-Mbit (128K × 16) CMOS static RAM with MoBL® ultra-low-power architecture, designed for battery-critical embedded systems. It operates across 2.7V–3.6V, delivers 55 ns access time, supports industrial/automotive temperature ranges up to +125°C, and features automatic CE-controlled power-down reducing standby current to 1 µA - enabling extended runtime in portable telecom and automotive infotainment modules.

For engineers reviewing the CY62136VNLL-70ZSXET datasheet, CY62136VNLL-70ZSXET pinout, CY62136VNLL-70ZSXET application, or CY62136VNLL-70ZSXET equivalent, key selection criteria include byte-enable granularity (BHE/BLE), TTL-compatible I/O, 44-pin TSOP II package compatibility, and verified data retention at 1.0V VCC.

Technical Context

The CY62136VNLL-70ZSXET implements a fully static 128K × 16 memory array with independent high- and low-byte enables (BHE/BLE), enabling selective 8-bit writes without read-modify-write overhead. Its dual-mode power management includes automatic CE-driven power-down (ISB2 = 1 µA) and full standby (CE HIGH) with high-impedance I/Os.

Address decoding uses 17-bit addressing (A0–A16) for 128K word selection, while I/O0–I/O15 provide bidirectional 16-bit data paths. All control inputs (CE, OE, WE, BHE, BLE) are TTL-compatible with VIH ≥ 2.2V and VIL ≤ 0.8V at VCC = 2.7V, ensuring robust noise margin in mixed-signal environments.

Key Specifications

Pinout & Package

44-pin TSOP Type II (ZSXET) package with 0.8 mm pitch, 10.16 mm × 18.42 mm body, and JEDEC MO-143AC compliant footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS62WV12816BLL-55NLI and R1LV0216ES-5SI#U0, the CY62136VNLL-70ZSXET uniquely combines 2.7V operation, automotive-E temperature rating, and independent byte enables - making it the sole option for battery-powered automotive telematics modules requiring partial-word updates at low voltage.

Availability

CY62136VNLL-70ZSXET is available at Aetrix Electronics and suitable for cellular baseband subsystems, automotive instrument clusters, industrial PLCs, and portable medical devices requiring stable component supply with guaranteed long-term availability.

Supply support for CY62136VNLL-70ZSXET 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 consumer electronics, with focus on low-power innovation and functional safety.

The MoBL® (More Battery Life) SRAM product line targets portable and energy-constrained systems requiring fast, deterministic, and ultra-low-quiescent-current memory - especially where data retention during brown-out events is mission-critical.

FAQ

What is the maximum clock frequency supported by CY62136VNLL-70ZSXET?

The CY62136VNLL-70ZSXET is an asynchronous SRAM with no internal clock; its maximum operational speed is defined by access time (55 ns), corresponding to a maximum bus cycle rate of ~18.2 MHz. System timing must satisfy tRC ≥ 55 ns, tAA ≥ 55 ns, and tDOE ≥ 25 ns per Cypress datasheet specifications.

Does CY62136VNLL-70ZSXET require external refresh circuitry?

No - the CY62136VNLL-70ZSXET is a fully static RAM and requires no refresh cycles. Data is retained indefinitely as long as VCC remains within specification (≥1.0V for retention, ≥2.7V for active operation) and CE is held LOW during reads/writes or HIGH during standby.

Can BHE and BLE be asserted simultaneously for full 16-bit writes?

Yes - asserting both BHE and BLE LOW enables concurrent access to I/O0–I/O15, allowing full 16-bit writes in a single cycle. This matches standard SRAM behavior and is explicitly supported in the device's truth table and functional description.

Is the ZSXET suffix indicative of RoHS compliance and lead-free finish?

Yes - the "Z" prefix in ZSXET denotes lead-free (Pb-free) construction per JEDEC J-STD-609, and the "ET" suffix confirms TSOP II packaging with matte tin termination. Cypress documentation confirms this variant meets RoHS Directive 2011/65/EU and REACH SVHC requirements.