Infineon Technologies S29XS128RABBHI000

Overview

S29XS128RABBHI000 from Spansion is a 128-Mbit (16-MB) 1.8 V burst-mode MirrorBit Flash memory with multiplexed address/data interface (AADM mode), eight-bank architecture enabling simultaneous read/write operations, and 65 nm process technology. It supports 108 MHz synchronous burst read, 32-word write buffer, and hardware sector protection via VPP pin for wireless baseband and application processor boot storage.

For engineers reviewing the S29XS128RABBHI000 datasheet, S29XS128RABBHI000 pinout, S29XS128RABBHI000 application, or S29XS128RABBHI000 equivalent, key selection criteria include 1.7–1.95 V single-supply operation, CFI-compliant command set, RDY handshaking support, and FBGA-44 package compatibility with high-density mobile SoC designs.

Technical Context

This device implements AADM (Address-High, Address-Low, Data Multiplexed) interface to minimize I/O count while maintaining full 16-bit data bus capability. Its eight independent banks allow zero-latency concurrent access - one bank executing erase/program while another performs burst read at up to 108 MHz.

The internal architecture includes a 32-word write buffer with effective programming times of 14.1 µs/VCC or 9 µs/VPP per word, suspend/resume commands for program/erase, and a secured silicon sector (128 words) for factory and customer code storage. RDY output and status register bits provide real-time operation feedback without polling overhead.

Key Specifications

Pinout & Package

Package: 44-ball FBGA (6.2 mm × 7.7 mm × 1.0 mm, ball pitch 0.8 mm), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar burst-mode Flash memory applications.

Compared with S29VS128RABBHI000 and S29GL128P11TFI010, the S29XS128RABBHI000 uniquely delivers 1.8 V AADM operation with true concurrent bank access - essential for modern low-power, high-throughput embedded boot architectures.

Availability

S29XS128RABBHI000 is available at Aetrix Electronics and suitable for mobile baseband boot storage, wireless modem firmware update, and industrial HMI application code storage requiring stable component supply and long-term lifecycle support.

Supply support for S29XS128RABBHI000 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

Spansion Inc. was a fabless semiconductor company specializing in Flash memory and microcontrollers, later acquired by Cypress Semiconductor in 2015 and integrated into Infineon Technologies.

This part belongs to the S29XS-R MirrorBit Flash product line, designed specifically for high-performance, low-voltage mobile and wireless applications requiring burst-mode execution and hardware-secured firmware storage.

FAQ

Is S29XS128RABBHI000 pin-compatible with S29VS128RABBHI000?

No. S29XS128RABBHI000 uses AADM (multiplexed address/data) on a 44-ball FBGA, while S29VS128RABBHI000 uses ADM (separate address/data) on a 56-ball FBGA. The pin counts, ball maps, and interface timing protocols differ fundamentally - PCB redesign and firmware timing adjustments are required for substitution.

Does this device support Common Flash Interface (CFI) query mode?

Yes. The device fully complies with JEDEC Standard JESD68-A for CFI, allowing host systems to auto-detect vendor ID, device geometry, timing parameters, and command sets via standardized register reads at address 0x55. This enables plug-and-play driver integration in Linux MTD and U-Boot environments.

What is the function of the VPP pin beyond factory programming?

VPP serves as a hardware sector protection enable: when driven high during power-up or reset, it unlocks hardware-based sector locking. In normal operation, VPP must be tied to VSS to prevent accidental unlock. This provides tamper-resistant sector protection independent of software command sequences.

Can simultaneous read/write occur across any two banks, or only specific pairs?

Simultaneous read/write is supported between any two non-overlapping banks - all eight banks are fully independent. The device does not restrict pairing; for example, Bank 0 can erase while Bank 5 executes burst read. This flexibility enables optimal partitioning of code, data, and update sectors in complex firmware layouts.