Infineon Technologies S29WS512P0PBFW000

Overview

S29WS512P0PBFW000 from Cypress Semiconductor is a 512 Mb (32 M × 16-bit) 1.8 V simultaneous read/write NOR Flash memory using 90 nm MirrorBit™ technology. It supports zero-latency concurrent read and write across two independent banks, delivers 104 MHz burst operation with 7.6 ns tBACC, and features hardware write protection, CFI compliance, and dual boot sector architecture for wireless baseband and application processors.

For engineers reviewing the S29WS512P0PBFW000 datasheet, S29WS512P0PBFW000 pinout, S29WS512P0PBFW000 application, or S29WS512P0PBFW000 equivalent, key selection criteria include simultaneous bank operation capability, 1.7–1.95 V single-supply operation, 84-ball FBGA (11.6 mm × 8 mm) package compatibility, and Advanced Sector Protection with persistent/password modes.

Technical Context

This device implements a sixteen-bank architecture with 510 × 64 Kword sectors and four 16 Kword boot sectors at top/bottom. Its dual-bank design enables true concurrent access: one bank reads while the other programs or erases without latency penalty.

It supports synchronous burst (via CLK/AVD#), asynchronous (OE#/CE#/WE#), and page-mode read operations, with handshaking via RDY output and acceleration via ACC pin at V_HH. Command set complies fully with JEDEC 42.4 and includes suspend/resume, unlock bypass, and secured silicon sector (128-word factory + 128-word customer).

Key Specifications

Pinout & Package

84-ball Fine-Pitch BGA (VBH084), 11.6 mm × 8 mm, lead-free (Pb-free), MCP-compatible footprint. Balls arranged in 12×10 matrix (MD=12, ME=10), pitch = 0.80 mm, ball diameter = 0.33–0.43 mm.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar simultaneous-read/write NOR flash applications.

Compared with MX29GL512FHI-90G and S29GL512S11TFI010, the S29WS512P0PBFW000 uniquely delivers zero-latency dual-bank operation, 104 MHz burst performance, and hardware-enforced sector protection - critical for wireless and automotive systems requiring uninterrupted runtime updates.

Availability

S29WS512P0PBFW000 is available at Aetrix Electronics and suitable for wireless baseband processors, 5G radio units, and automotive telematics control units requiring stable component supply, long-lifecycle support, and Pb-free compliance.

Supply support for S29WS512P0PBFW000 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 nonvolatile memory and programmable system-on-chip solutions for communications, automotive, and industrial markets.

The S29WS-P series targets wireless infrastructure and mobile SoC platforms needing high-density, low-voltage, concurrent-access flash with robust security - specifically engineered for LTE/5G modem and baseband applications.

FAQ

What is the function of the ACC pin on S29WS512P0PBFW000?

The ACC (Acceleration) pin operates at V_HH (typically 3.0 V) to enable unlock bypass mode and accelerate programming speed. When asserted, it reduces effective write buffer programming time to 6 µs per word. At V_IL, it disables all program and erase functions. It must be held at V_IH during normal operation and is not used for standard 1.8 V signaling.

Does S29WS512P0PBFW000 support Common Flash Interface (CFI)?

Yes, the device fully supports JEDEC-standard Common Flash Interface (CFI) version 1.0. This enables automatic detection of geometry, timing, and command set by host boot ROM or flash translation layer, eliminating hardcoded initialization sequences and simplifying firmware portability across NOR flash vendors.

How does hardware write protection (WP#) operate on this device?

WP# is an active-low input that permanently disables program and erase operations in the four outermost 16 Kword sectors (top and bottom boot sectors) when driven to V_IL. It operates independently of software protection and remains effective across power cycles, providing tamper-resistant boot code storage essential for secure boot implementations.

What is the significance of the RDY output signal?

RDY is an active-high status signal indicating valid burst data readiness or completion of program/erase operations. Unlike polling DQ7, RDY provides deterministic handshaking - enabling DMA-driven transfers and eliminating CPU wait states. It supports both synchronous and asynchronous operation modes and is required for suspend/resume functionality.