Infineon Technologies S29GL128S10TFIV20

Overview

S29GL128S10TFIV20 from Infineon is a 128 Mb (16 MB), 3.0 V core, parallel-interface MIRRORBIT™ Eclipse flash memory with ×16 data bus, 90 ns random access time, 15 ns page access time, and industrial temperature grade (–40°C to +85°C). It integrates hardware ECC for single-bit error correction, 128-kbyte uniform sectors, and a 512-byte programming buffer-used in boot code storage and firmware update in embedded microcontroller systems.

For engineers reviewing the S29GL128S10TFIV20 datasheet, S29GL128S10TFIV20 pinout, S29GL128S10TFIV20 application, or S29GL128S10TFIV20 equivalent, key selection criteria include asynchronous parallel interface timing, Versatile I/O voltage range (1.65 V to VCC), sector erase granularity, OTP array availability, and AEC-Q100 compatibility options.

Technical Context

This device implements an asynchronous parallel flash architecture with XIP-capable read performance: initial random access reads a full 32-byte aligned page, followed by 15 ns sub-page accesses within the same page using low-order address bits. The embedded algorithm controller (EAC) manages program/erase operations with suspend/resume capability and status reporting via status register, data polling, or RY/BY# pin.

It supports dual-voltage operation: 2.7–3.6 V core supply (VCC) and independent I/O supply (VIO) from 1.65 V to VCC, enabling interoperability with mixed-voltage SoCs. Sector protection includes volatile (lock bits) and non-volatile (ASP) methods, plus a dedicated 1024-byte OTP array with two lockable regions for secure configuration storage.

Key Specifications

Pinout & Package

Package: 56-pin TSOP (Thin Small Outline Package), 400 mil width, standard JEDEC MO-141AC footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar parallel NOR flash applications.

Compared with S29GL128S10TFIV20, the S29GL128S10TFI020 omits AEC-Q100 validation but matches all electrical specs, while MX29GL128FPTI-90G trades on-die ECC and OTP for lower price-requiring external error handling and reduced security capability.

Availability

S29GL128S10TFIV20 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLC firmware storage, medical diagnostic imaging boot, and avionics data recorders requiring stable component supply across extended product lifecycles.

Supply support for S29GL128S10TFIV20 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 German semiconductor manufacturer specializing in power management, automotive ICs, and memory solutions, with global manufacturing and quality certification to ISO/TS 16949 and AEC-Q100.

The GL-S family targets high-reliability embedded systems needing XIP-capable parallel flash with enhanced endurance, ECC, and security features-designed specifically for automotive, industrial, and medical applications demanding long-term data integrity.

FAQ

Does S29GL128S10TFIV20 support both 3.3 V and 1.8 V I/O interfaces?

Yes. Its Versatile I/O feature allows VIO to operate from 1.65 V to VCC, so it supports 1.8 V I/O when VCC = 3.3 V and VIO = 1.8 V. This enables direct connection to 1.8 V FPGAs or microcontrollers without level shifters, while maintaining full 90 ns random access timing under those conditions.

Can the OTP array be reprogrammed after locking?

No. Once either of the two OTP lock bits is set, that 512-byte region becomes permanently read-only. The lock bits themselves are one-time programmable fuses; they cannot be reset or cleared. This ensures cryptographic keys or calibration data remain tamper-proof throughout the device's lifetime.

What is the minimum sector erase size, and can partial sectors be erased?

The device has uniform 128-kbyte sectors-there are no smaller erasable units. Partial sector erasure is not supported; erase commands always target entire 128-kbyte blocks. This simplifies firmware update logic but requires careful partitioning of code and data to avoid unnecessary erases during field updates.

How does hardware ECC interact with the status register during read operations?

Hardware ECC operates transparently during read: if a single-bit error is detected, it is corrected before data appears on DQ[15:0], and the ECC Status bit (bit 6) in the status register is set. No software intervention is needed for correction, but reading the status register after critical reads confirms whether correction occurred-enabling diagnostics without interrupting execution.