Renesas HN58X25128FPIAG#S0

Overview

HN58X25128FPIAG#S0 from Renesas Electronics is a 128-kbit SPI serial EEPROM (16,384 × 8-bit) in an 8-pin SOP package, operating from 1.8 V to 5.5 V with 5 MHz max clock speed at ≥2.5 V, 3 MHz at 1.8 V, and featuring 64-byte page write, 5 ms write cycle time (≥2.5 V), and industrial −40°C to +85°C temperature range for embedded system configuration storage.

For engineers reviewing the HN58X25128FPIAG#S0 datasheet, HN58X25128FPIAG#S0 pinout, HN58X25128FPIAG#S0 application, or HN58X25128FPIAG#S0 equivalent, this device supports reliable nonvolatile data retention (100+ years @25°C), high endurance (1,000k cycles @25°C), low-power standby (≤3.0 μA), and hardware/software write protection via W and status register bits - critical for firmware parameter logging, calibration storage, and secure boot configuration in space-constrained industrial controllers.

Technical Context

This SPI EEPROM implements MONOS memory technology with CMOS low-voltage circuitry, enabling single-supply operation across 1.8–5.5 V while maintaining SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) compatibility. Its internal architecture includes a 64-byte page buffer, automatic address incrementing during read, and a status register with WIP, WEL, BP1/BP0, and SRWD bits for granular write protection control.

The device integrates voltage detection for power-on reset, supports HOLD functionality to pause communication without chip deselection, and uses hardware-protected mode (SRWD=1 + W=low) to lock status register bits - preventing accidental modification of block protection settings during brown-out or noise events in automotive body control modules and programmable logic controllers.

Key Specifications

Pinout & Package

Package: 150-mil 8-pin plastic SOP (PRSP0008DF-B / FP-8DBV), lead-free, 2.5 mm body width, 1.27 mm pitch, 3.90 mm × 4.89 mm footprint.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Compared with AT25128B-SSHL-T and M95128-DRMN6TP/K, HN58X25128FPIAG#S0 uniquely combines HOLD functionality, SRWD-enabled hardware protection, and verified 100-year data retention - making it the only option among the three qualified for medical device calibration and automotive BCM configuration where irreversible parameter locking is required.

Availability

HN58X25128FPIAG#S0 is available at Aetrix Electronics and suitable for industrial PLC configuration storage, medical device calibration data retention, automotive body control module presets, and smart energy meter firmware settings requiring stable component supply across multi-year production cycles.

Supply support for HN58X25128FPIAG#S0 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

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and memory solutions for industrial, automotive, and infrastructure markets.

HN58X25128FPIAG#S0 belongs to Renesas' HN58X25x serial EEPROM product line, designed specifically for robust, low-power, high-reliability nonvolatile storage in harsh industrial and automotive environments where data integrity and long-term retention are mission-critical.

FAQ

What is the maximum clock frequency supported by HN58X25128FPIAG#S0?

HN58X25128FPIAG#S0 supports up to 5 MHz when VCC is 2.5 V or higher, and up to 3 MHz across the full 1.8 V to 5.5 V supply range. This dual-frequency specification allows designers to optimize speed versus voltage headroom - for example, achieving 5 MHz operation in 3.3 V systems while maintaining compatibility with 1.8 V battery-backed subsystems. The device remains fully functional within these limits without external timing adjustments.

Does HN58X25128FPIAG#S0 support hardware write protection independent of software control?

Yes, HN58X25128FPIAG#S0 supports true hardware write protection via the combination of the SRWD bit and the W pin. When SRWD = 1 and W is driven low, the device enters Hardware Protected Mode (HPM), locking the BP1/BP0 and SRWD bits against modification - even if the Write Enable Latch (WEL) is set. This provides irreversible protection for critical configuration data, unlike software-only schemes vulnerable to firmware bugs or malware.

What is the page size and write time for HN58X25128FPIAG#S0?

HN58X25128FPIAG#S0 has a 64-byte page size and a typical write cycle time of 5 ms at VCC ≥2.5 V (8 ms at 1.8 V). This enables efficient bulk writes: loading 64 bytes into the page buffer and executing a single WRITE instruction completes the entire page program in one self-timed operation. The page architecture reduces total programming time by ~63× compared to byte-by-byte writes for full memory updates.

How does the HOLD function operate in HN58X25128FPIAG#S0?

In HN58X25128FPIAG#S0, the HOLD pin pauses ongoing SPI communication without deselecting the device or resetting internal state. To activate HOLD, the pin must be driven low while the serial clock (C) is low; deactivation requires HOLD high while C remains low. During HOLD, Q goes high-impedance and D/C are ignored - allowing microcontrollers to service interrupts or perform other tasks while preserving the exact point in the SPI transaction.

What is the data retention and endurance rating for HN58X25128FPIAG#S0?

HN58X25128FPIAG#S0 guarantees 100+ years of data retention at 25°C and 10+ years at 85°C, with 1,000,000 write/erase cycles minimum at 25°C (100,000 cycles at 85°C). These values are measured and specified per JEDEC standards, not extrapolated. The MONOS memory technology enables this performance without requiring periodic refresh, making HN58X25128FPIAG#S0 suitable for applications where data must remain valid across decades of unpowered storage.