Microchip Technology AT25080AY6-10YH-1.8

Overview

AT25080AY6-10YH-1.8 from Microchip Technology (formerly Atmel) is an 8-Kbit SPI serial EEPROM organized as 1024 × 8 bits, supporting 1.8 V to 5.5 V operation, 20 MHz clock rate at 5 V, 32-byte page write, and hardware/software write protection. It serves as nonvolatile configuration storage in industrial controllers, automotive body modules, and IoT sensor nodes requiring low-voltage reliability.

For engineers reviewing the AT25080AY6-10YH-1.8 datasheet, AT25080AY6-10YH-1.8 pinout, AT25080AY6-10YH-1.8 application, or AT25080AY6-10YH-1.8 equivalent, key selection criteria include 1.8 V minimum supply, MLP 2×3 mm ultra-thin DFN package footprint, SPI Mode 0/3 compatibility, block-level write protection granularity, and 1 million endurance cycles with 100-year data retention.

Technical Context

The AT25080AY6-10YH-1.8 operates as a slave SPI peripheral with dedicated SI/SO lines, CS-controlled selection, and HOLD pin for transaction suspension without reset. Its status register enables programmable block protection (BP1/BP0) and WPEN-controlled hardware write protect functionality.

It implements self-timed internal write cycles (≤5 ms), requires explicit WREN instruction before programming, and supports continuous read with automatic address increment. The device uses MSB-first transmission and accepts op-codes including READ (0x03), WRITE (0x02), RDSR (0x05), and WRSR (0x01).

Key Specifications

Pinout & Package

AT25080AY6-10YH-1.8 is packaged in an 8-lead Ultra Thin Mini-MAP (MLP 2×3 mm) DFN with 0.50 mm pitch, exposed pad, and NiPdAu lead finish - RoHS-compliant and halogen-free.

Key Features

Applications

Equivalent & Alternatives

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

Compared with M95080-DRMN6TP/K and BR24G08NUX-10, AT25080AY6-10YH-1.8 uniquely delivers HOLD support, consistent SPI Mode 0/3 timing, and validated 1M-cycle endurance at 1.8 V - critical for deterministic real-time embedded systems.

Availability

AT25080AY6-10YH-1.8 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, and IoT sensor nodes requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.

Supply support for AT25080AY6-10YH-1.8 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 global semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with broad industrial and automotive qualification expertise.

The AT25080A family is designed for reliable, low-voltage serial data storage in resource-constrained embedded systems - emphasizing robustness, interoperability with mainstream MCUs, and long-term data integrity.

FAQ

What is the operating voltage range for AT25080AY6-10YH-1.8?

The AT25080AY6-10YH-1.8 supports 1.8 V to 5.5 V operation, enabling direct interface with 1.8 V, 2.5 V, 3.3 V, and 5 V logic families. This dual-range capability eliminates level shifters in mixed-voltage systems and ensures compatibility with modern ultra-low-power MCUs. The device maintains full AC/DC specifications across this entire range, including 20 MHz clock rate at 5 V and sub-µA standby current at 1.8 V.

Does AT25080AY6-10YH-1.8 support SPI Mode 0 and Mode 3 simultaneously?

Yes, AT25080AY6-10YH-1.8 is compatible with both SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1). The datasheet explicitly confirms support for these modes, and timing parameters (tWH, tWL, tSU, tH) are specified for each voltage range. Host MCU configuration must match the selected mode; the device does not auto-detect mode but functions correctly in either once initialized.

What package type is used for AT25080AY6-10YH-1.8?

AT25080AY6-10YH-1.8 uses an 8-lead Ultra Thin Mini-MAP (MLP 2×3 mm) DFN package with 0.50 mm pitch and NiPdAu lead finish. This RoHS-compliant, halogen-free package measures 2.00 mm × 3.00 mm with 0.60 mm maximum height, optimized for high-density PCB layouts in compact consumer and industrial modules.

How does the HOLD pin function on AT25080AY6-10YH-1.8?

The HOLD pin on AT25080AY6-10YH-1.8 suspends ongoing SPI communication without resetting the serial sequence. When asserted low while SCK is low, it places SO in high-impedance state and ignores SI inputs, allowing the host MCU to service interrupts. Resuming requires bringing HOLD high while SCK remains low - preserving address and data pointers for seamless continuation.

What is the maximum write endurance and data retention for AT25080AY6-10YH-1.8?

AT25080AY6-10YH-1.8 guarantees 1 million write cycles and 100 years of data retention at +25 °C, validated per JEDEC standards. Endurance is measured under worst-case conditions (5.5 V, 85 °C), and retention accounts for activation energy modeling across the –40 °C to +85 °C operating range. These figures apply specifically to the AT25080AY6-10YH-1.8 variant and are confirmed in the official Microchip datasheet revision 3347L.