Infineon Technologies CY7C1020CV26-15ZSXE

Overview

CY7C1020CV26-15ZSXE from Infineon Technologies (formerly Cypress) is a 512-Kbit (32 K × 16) high-speed CMOS static RAM with 15 ns access time, 2.5–2.7 V supply operation, automotive temperature range (–40 °C to +125 °C), and automatic CE-controlled power-down. It supports independent byte-wide writes via BHE/BLE and is used in engine control units, ADAS domain controllers, and automotive infotainment memory buffers.

For engineers reviewing the CY7C1020CV26-15ZSXE datasheet, CY7C1020CV26-15ZSXE pinout, CY7C1020CV26-15ZSXE application, or CY7C1020CV26-15ZSXE equivalent, key selection criteria include tAA ≤ 15 ns read timing, ISB2 ≤ 5 mA CMOS standby current, dual-byte enable architecture, and TSOP II package compatibility with automotive PCB layouts.

Technical Context

This SRAM implements asynchronous, non-volatile-read-compatible memory access with separate high- and low-byte write enables (BHE, BLE), enabling efficient 8-bit sub-word updates without full 16-bit bus contention. Its CE-driven automatic power-down mode reduces ICC to 5 mA at CMOS input levels when deselected.

The device uses TTL/CMOS-compatible inputs and produces LVTTL-level outputs (VOH ≥ 2.3 V, VOL ≤ 0.4 V) under 2.5 V min supply, with AC timing referenced to 1.3 V thresholds and 30 pF load. All timing parameters-including tDOE = 7 ns and tHZOE = 7 ns-are guaranteed over –40 °C to +125 °C.

Key Specifications

Pinout & Package

Package: 44-pin Thin Small Outline Package Type II (TSOP II), 400 mil body width, 0.8 mm pitch, surface-mount, lead-free (Pb-free) and RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed automotive SRAM applications.

Compared with AS6C1008-15TIN and IS61LV51216-15TQLI, CY7C1020CV26-15ZSXE uniquely delivers 2.5 V operation, full automotive temperature coverage, and CE-driven 5 mA standby-making it irreplaceable in AEC-Q100-compliant ECUs without voltage translation or derating.

Availability

CY7C1020CV26-15ZSXE is available at Aetrix Electronics and suitable for engine control units, ADAS domain controllers, and automotive infotainment head units requiring stable component supply across extended product lifecycles.

Supply support for CY7C1020CV26-15ZSXE 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

Infineon Technologies is a global semiconductor leader headquartered in Munich, Germany, specializing in power systems, automotive ICs, and security solutions with over 40 years of automotive qualification heritage.

CY7C1020CV26-15ZSXE belongs to Infineon's legacy Cypress SRAM portfolio, designed specifically for high-reliability, low-voltage automotive memory applications where timing determinism and thermal robustness are non-negotiable.

FAQ

Is CY7C1020CV26-15ZSXE pin-compatible with CY7C1020DV26-15ZSXI?

No. CY7C1020DV26-15ZSXI uses a 48-pin TSOP I package with different pinout and 3.3 V operation. The -CV26 variant has 44-pin TSOP II layout, 2.5–2.7 V supply, and distinct BHE/BLE placement. Physical mounting and signal routing are incompatible.

Can this SRAM interface directly with an ARM Cortex-M4 running at 3.3 V I/O?

No. CY7C1020CV26-15ZSXE requires 2.5–2.7 V VCC and specifies VIH = 2.0 V minimum. Direct connection to 3.3 V GPIO would exceed absolute maximum input voltage (VCC + 0.5 V = 3.2 V), risking latch-up. Level-shifting is mandatory.

What is the maximum sustained operating frequency for continuous read cycles?

The device supports tRC = 15 ns minimum read cycle time, enabling up to 66.7 MHz sustained burst reads. This assumes stable address setup/hold, proper decoupling, and ambient temperature ≤ +125 °C. No internal clock or PLL is used-timing is fully asynchronous.

Does automatic power-down activate during OE-only disable while CE remains low?

No. Automatic power-down (ISB2 mode) activates only when CE is HIGH and all inputs are stable at valid logic levels. If CE is LOW and OE is HIGH, the device remains in active standby (ISB1 ≤ 40 mA), not deep power-down.