Renesas HN58X24512FPIAG#S0

Overview

HN58X24512FPIAG#S0 from Renesas Technology is a 512-kbit (64-kword × 8-bit) two-wire serial EEPROM with I²C-compatible interface, 1.8 V to 5.5 V single-supply operation, and 128-byte page write capability. It delivers high reliability via MNOS memory technology and CMOS low-voltage circuitry, targeting non-volatile data storage in consumer electronics such as camcorders and audio equipment.

For engineers reviewing the HN58X24512FPIAG#S0 datasheet, HN58X24512FPIAG#S0 pinout, HN58X24512FPIAG#S0 application, or HN58X24512FPIAG#S0 equivalent, this device supports 400 kHz/1 MHz clock rates, −40°C to +85°C industrial temperature range, and write protection via dedicated WP pin - critical for firmware parameter retention and configuration backup in resource-constrained embedded systems.

Technical Context

This EEPROM implements a true two-wire I²C-compatible bus interface with open-drain SDA and active-high SCL, supporting standard-mode (400 kHz) and fast-mode (1 MHz) timing under specified voltage ranges. Its internal address generator and serial-parallel converter enable byte and page write operations without external address latches.

The device uses an internally pulled-down WP pin for hardware write protection and A0/A1 pins for 4-device bus addressing. Memory array access is controlled by 16-bit address decoding (a15–a0), with automatic address increment during sequential reads and page-boundary rollover during page writes.

Key Specifications

Pinout & Package

HN58X24512FPIAG#S0 is housed in an 8-pin SOP package (FP-8DF, 200 mil width, 1.27 mm pitch), with lead-free construction compliant with RoHS requirements.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT24C512B-PU and M95512-DRMN6TP/K, HN58X24512FPIAG#S0 uniquely supports 1.8 V operation while retaining full I²C compatibility and hardware write protection - making it optimal for mixed-voltage, space-constrained consumer electronics where bus efficiency and robustness are prioritized over raw speed.

Availability

HN58X24512FPIAG#S0 is available at Aetrix Electronics and suitable for consumer audio equipment, portable camcorders, smartphone accessories, and industrial human-machine interfaces requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for HN58X24512FPIAG#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 Technology Corp. is a Japanese semiconductor manufacturer specializing in microcontrollers, analog, and memory solutions for automotive, industrial, and consumer markets.

HN58X24512FPIAG#S0 belongs to Renesas' serial EEPROM product line designed specifically for reliable, low-power non-volatile storage in cost-sensitive consumer electronics with stringent size and voltage constraints.

FAQ

What is the maximum I²C clock frequency supported by HN58X24512FPIAG#S0?

HN58X24512FPIAG#S0 supports up to 1 MHz I²C clock frequency when operated at 2.5 V to 5.5 V supply, and 400 kHz at 1.8 V to 5.5 V. These values are guaranteed across the full −40°C to +85°C temperature range and reflect actual timing margins measured per AC characteristics table on page 5 of the datasheet.

Does HN58X24512FPIAG#S0 require an external pull-up resistor on the SDA line?

Yes, HN58X24512FPIAG#S0 has an open-drain SDA output structure and requires an external pull-up resistor. The value must be selected based on bus capacitance, VOL specification (≤0.4 V at 1.6 mA for VCC ≥4.5 V), and target rise time - typically 2.2 kΩ to 10 kΩ for standard-mode I²C buses with ≤400 pF load.

How does the write protection (WP) pin function on HN58X24512FPIAG#S0?

When the WP pin is driven high (VIH ≥0.7×VCC), HN58X24512FPIAG#S0 disables all write operations across its entire 512-kbit memory array. When WP is low or floating (internally pulled down), full read/write access is enabled. This hardware lock operates independently of I²C commands and persists through power cycles.

What is the page size and write endurance of HN58X24512FPIAG#S0?

HN58X24512FPIAG#S0 features a 128-byte page size and guarantees 10⁵ write/erase cycles in page-write mode. Byte-write endurance is rated at 10⁴ cycles. Data retention exceeds 10 years at +85°C when page-programmed ≤10⁴ times, per page 16 of the datasheet.

Is HN58X24512FPIAG#S0 compatible with standard I²C protocol implementations?

Yes, HN58X24512FPIAG#S0 implements full I²C protocol compliance including START/STOP conditions, ACK/NACK handshaking, 7-bit device addressing with R/W bit, and noise suppression (50 ns pulse rejection). It responds to the fixed device code "1010" and supports A0/A1-based addressing for multi-device bus configurations.