Renesas AT25PE80-SHN-T

Overview

AT25PE80-SHN-T from Microchip Technology is an 8-Mbit serial Flash memory with SPI interface, 256/264-byte page size, dual 256/264-byte SRAM buffers, and RapidS™ high-speed read capability up to 85 MHz. It operates from 1.7V–3.6V, supports industrial temperature range (−40°C to +85°C), and is packaged in 8-pad Ultra-thin DFN (5 × 6 × 0.6 mm). It enables continuous streaming data logging in embedded telemetry systems.

For engineers reviewing the AT25PE80-SHN-T datasheet, AT25PE80-SHN-T pinout, AT25PE80-SHN-T application, or AT25PE80-SHN-T equivalent, key selection criteria include its dual-buffer interleaved write capability, ultra-deep power-down current (300 nA typical), 100,000 program/erase cycles, JEDEC-compliant ID read, and hardware write protection via WP pin.

Technical Context

The AT25PE80-SHN-T implements a sequential-access DataFlash®-Lite architecture with two independent SRAM buffers that enable concurrent receive-and-reprogram operation-critical for uninterrupted firmware updates or audio buffering. Its SPI interface supports modes 0 and 3, with four distinct Continuous Array Read opcodes (01h, 03h, 0Bh, 1Bh) optimized for low-power, standard, high-frequency, and ultra-high-frequency operation respectively.

Erase granularity spans page (256/264 bytes), block (2 KB), sector (64 KB), and chip (8 Mbit), all self-timed and requiring no external high-voltage supply. The device integrates a 128-byte factory-programmed security register containing a unique identifier and supports both hardware (WP/RESET pins) and software-controlled protection schemes.

Key Specifications

Pinout & Package

AT25PE80-SHN-T uses an 8-pad Ultra-thin DFN package (5 mm × 6 mm × 0.6 mm) with exposed thermal pad (non-connected). Pin functions are electrically identical to the SOIC variant but optimized for space-constrained PCB layouts.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q80DVSSIG and S25FL008A0XMFI001, the AT25PE80-SHN-T uniquely delivers simultaneous high-speed read (85 MHz), ultra-low-power sleep (300 nA), and dual-SRAM-buffered streaming-making it the only option among the three qualified for battery-powered continuous-data-acquisition systems requiring zero-gap logging and 20-year data retention.

Availability

AT25PE80-SHN-T is available at Aetrix Electronics and suitable for industrial data loggers, medical wearable sensor hubs, automotive ADAS recorders, and smart home gateway firmware vaults requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AT25PE80-SHN-T 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, Flash memory, and security ICs, with broad industrial and automotive qualification coverage.

The AT25PE80-SHN-T belongs to Microchip's DataFlash®-Lite family-designed specifically for embedded systems needing high-density, low-pin-count, low-voltage serial Flash with integrated SRAM buffers for seamless streaming applications.

FAQ

What is the operating voltage range of the AT25PE80-SHN-T?

The AT25PE80-SHN-T operates from a single supply of 1.7 V to 3.6 V. This wide range allows direct integration with both 1.8 V logic families and 3.3 V microcontrollers without level-shifting circuitry. All functions-including program, erase, and read-are fully specified across this range, and the device maintains 6 ns clock-to-output timing even at minimum VCC.

Does the AT25PE80-SHN-T support true concurrent read-while-write operation?

Yes-the AT25PE80-SHN-T supports true interleaved operation via its two independent 256/264-byte SRAM buffers. While one buffer receives incoming data via SPI, the other can be programmed into Flash memory without halting the data stream. This eliminates write latency gaps and enables zero-gap continuous logging, unlike single-buffer SPI Flash devices.

What is the purpose of the RESET pin on the AT25PE80-SHN-T?

The RESET pin on the AT25PE80-SHN-T provides asynchronous hardware reset: a low signal forces the internal state machine into idle mode immediately, terminating any ongoing program or erase cycle. The device includes an internal power-on reset circuit, so external reset circuitry is optional-though driving RESET high externally is recommended if unused.

How does the AT25PE80-SHN-T handle page size configuration?

The AT25PE80-SHN-T supports two page sizes: 256 bytes (default) and 264 bytes (customer-selectable). The 264-byte mode adds 8 bytes of overhead per page for enhanced ECC or metadata tagging. Addressing differs between modes-20-bit for 256-byte pages (A19–A0), 21-bit for 264-byte pages (PA11–PA0 + BA8–BA0)-and is selected at manufacturing; it cannot be changed in-circuit.

Is the AT25PE80-SHN-T compatible with standard SPI controllers?

Yes-the AT25PE80-SHN-T is fully compatible with standard 3-wire SPI controllers supporting modes 0 and 3. It uses standard SPI opcodes (e.g., 03h for fast read, D2h for page read) and requires no proprietary drivers. Its SO pin is push-pull (not open-drain), and timing parameters-including tV ≤ 6 ns-meet or exceed JEDEC SPI-3 specifications for 85 MHz operation.