Microchip Technology 25LC080DT-H/SN

Overview

25LC080DT-H/SN from Microchip Technology is an 8-Kbit SPI serial EEPROM organized as 1,024 × 8 bits, operating from 2.5V to 5.5V with 5 MHz max clock speed and 16-byte page size. It features hardware write protection via WP pin, HOLD functionality for interrupt-safe pausing, and AEC-Q100 qualification for automotive under-hood applications.

For engineers reviewing the 25LC080DT-H/SN datasheet, 25LC080DT-H/SN pinout, 25LC080DT-H/SN application, or 25LC080DT-H/SN equivalent, key selection criteria include extended temperature operation (−40°C to +150°C), self-timed 6 ms write cycle, block-level write protection (0/¼/½/all array), and SOIC-8 packaging with verified SPI timing compliance at 5 MHz.

Technical Context

This device implements a standard SPI Mode 0,0 interface with separate SI (data in) and SO (data out) lines, requiring CS, SCK, and HOLD control signals. Its internal architecture includes a status register with WIP, WEL, BP0/BP1, and WPEN bits enabling configurable protection and real-time write-status monitoring.

It supports byte-write and page-write operations within fixed 16-byte physical pages, with automatic address rollover during sequential reads and hardware-based data retention safeguards including power-on write-disable, write-enable latch reset on completion, and ESD protection exceeding 4 kV.

Key Specifications

Pinout & Package

8-Lead SOIC (SN) package, 3.90 mm body width, RoHS-compliant matte tin finish, JEDEC MS-012AC standard footprint.

Key Features

Applications

Equivalent & Alternatives

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

Compared with AT25080B-MAHL-T and BR25H080FJ-WE2, the 25LC080DT-H/SN uniquely combines AEC-Q100 Grade 0 qualification, verified +150°C operation, and SOIC-8 compatibility-making it the only option qualified for under-hood automotive deployment without layout change.

Availability

25LC080DT-H/SN is available at Aetrix Electronics and suitable for automotive engine control, industrial PLC configuration, and medical infusion pump data logging requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for 25LC080DT-H/SN 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

Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, and memory solutions, serving automotive, industrial, and consumer markets with vertically integrated silicon and development tools.

The 25LCxxx family delivers mid-density serial EEPROMs optimized for SPI-based embedded systems where reliability, temperature resilience, and pin-compatible scalability across 8K–256K densities are critical design requirements.

FAQ

What is the maximum clock frequency supported by the 25LC080DT-H/SN?

The 25LC080DT-H/SN supports up to 5 MHz clock frequency when VCC is 4.5V–5.5V, and 3 MHz when VCC is 2.5V–4.5V. These AC timing limits are fully characterized across the −40°C to +150°C operating range and documented in Table 1-2 of the DS20002131D datasheet. The 25LC080DT-H/SN maintains full SPI timing compliance-including setup/hold times and output validity-under all specified conditions.

Does the 25LC080DT-H/SN support page write operations?

Yes, the 25LC080DT-H/SN supports page write operations with a 16-byte page size. Up to 16 consecutive bytes within the same physical page can be written in a single command before triggering the internal 6 ms write cycle. Crossing page boundaries causes wraparound behavior, so application firmware must enforce alignment. This capability is confirmed in the DEVICE SELECTION TABLE and functional description sections of DS20002131D.

How does the HOLD pin function on the 25LC080DT-H/SN?

The HOLD pin on the 25LC080DT-H/SN suspends ongoing SPI communication without resetting the internal state, allowing the host MCU to service higher-priority interrupts. It must be asserted low while SCK is low to activate, and released while SCK is low to resume. During HOLD, SI, SCK, and SO enter high-impedance states. This behavior is fully defined in Section 2.6 and Figure 1-1 of DS20002131D.

Is the 25LC080DT-H/SN AEC-Q100 qualified?

Yes, the 25LC080DT-H/SN is AEC-Q100 qualified (Grade 0) for automotive applications, with full testing across −40°C to +150°C ambient temperature. The "H" suffix in the part number explicitly denotes the extended temperature grade, and qualification details-including 1,000-hour bias life testing at +150°C-are specified in Note 1 of DS20002131D page 3.

What package type is used for the 25LC080DT-H/SN?

The 25LC080DT-H/SN uses an 8-Lead Plastic Small Outline (SN) package-narrow body, 3.90 mm width, JEDEC MS-012AC compliant-with matte tin (Sn) lead finish. Package dimensions, land pattern, and marking conventions are fully detailed in Section 6 and Drawing C04-057-SN Rev D of DS20002131D.