Cypress Semiconductor Corp CY7C1061GN18-15ZSXI

Overview

CY7C1061GN18-15ZSXI from Cypress Semiconductor is a 16-Mbit (1,048,576 × 16) asynchronous CMOS static RAM with dual chip enable (CE1/CE2), 15 ns access time, 2.2–3.6 V operation, and 48-ball VFBGA (8 × 9.5 × 1 mm) packaging. It supports byte-wide writes via BHE/BLE controls and automatic power-down during deselection, deployed in industrial embedded controllers requiring deterministic low-latency memory access.

For engineers reviewing the CY7C1061GN18-15ZSXI datasheet, CY7C1061GN18-15ZSXI pinout, CY7C1061GN18-15ZSXI application, or CY7C1061GN18-15ZSXI equivalent, key selection factors include its 15 ns tAA timing at 3.3 V, 20 µA typical CMOS standby current (ISB2), dual CE architecture for hierarchical memory mapping, and VFBGA package compatibility with high-density PCB layouts.

Technical Context

This SRAM implements a fully asynchronous interface with independent byte write enables (BHE/BLE) enabling selective 8-bit updates without read-modify-write cycles. Its dual chip enable logic (CE1 LOW + CE2 HIGH = active) allows seamless integration into multi-bank memory systems with bank-select granularity.

The device features TTL-compatible I/Os, 1.0 V data retention capability, and automatic power-down when deselected-reducing system-level idle power by disabling internal arrays and drivers. It operates across industrial temperature (–40°C to +85°C) with validated DC/AC performance at 2.2–3.6 V supply.

Key Specifications

Pinout & Package

Package: 48-ball Very Thin Fine-Pitch Ball Grid Array (VFBGA), 8 mm × 9.5 mm × 1.0 mm body, 0.5 mm ball pitch, BVXI marking. RoHS-compliant, Pb-free finish.

Key Features

Applications

Equivalent & Alternatives

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

Compared with IS61WV102416BLL-15NLI, CY7C1061GN18-15ZSXI offers superior byte-write flexibility and lower standby power; versus W9825G6JH-15, it delivers guaranteed worst-case latency and zero refresh overhead-critical for hard real-time embedded control.

Availability

CY7C1061GN18-15ZSXI is available at Aetrix Electronics and suitable for industrial PLC I/O buffering, medical imaging frame stores, and avionics sensor fusion hubs requiring stable component supply, long-term lifecycle support, and RoHS-compliant VFBGA packaging.

Supply support for CY7C1061GN18-15ZSXI 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, microcontrollers, and connectivity solutions for industrial, automotive, and consumer markets.

The CY7C1061GN series was designed specifically for deterministic, low-power, asynchronous memory applications in space-constrained industrial and medical electronics where refresh-free operation and byte-selective writes are mandatory.

FAQ

Is CY7C1061GN18-15ZSXI pin-compatible with CY7C1061GN18-10ZSXI?

No. While both share the same 48-ball VFBGA (BVXI) package and pinout, the -10 variant specifies 10 ns access time and higher ICC (110 mA typical), requiring stricter timing margins and thermal design. The -15 variant's 15 ns tAA relaxes setup/hold timing but does not permit substitution without revalidation of memory controller timing constraints.

Does CY7C1061GN18-15ZSXI support 1.8 V operation?

Yes, but only within the 2.2–3.6 V specified operating range. The device is not rated for 1.8 V VCC: minimum valid VCC is 2.2 V per the "Operating Range" table (page 6). Operation below 2.2 V risks data corruption, increased access time, or failure to meet ISB2 specifications.

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

Yes. When both BHE and BLE are LOW, all 16 I/O pins (I/O0–I/O15) are enabled for concurrent read or write. This is the standard mode for full-word transfers and is electrically identical to asserting a single 16-bit enable signal-no timing penalty or functional restriction applies.

What is the meaning of "ZSXI" in the part number CY7C1061GN18-15ZSXI?

"ZSXI" denotes the industrial temperature grade (–40°C to +85°C), Pb-free RoHS-compliant packaging, and 48-ball VFBGA (BVXI) package variant. "Z" = green/RoHS, "S" = VFBGA, "X" = industrial temp, "I" = standard reliability level-per Cypress ordering code definitions (page 14 of datasheet 001-93680 Rev. *C).