Microchip Technology 25LC010AT-I/MNY

Overview

25LC010AT-I/MNY from Microchip Technology Inc. is a 1 Kbit (128 × 8) SPI serial EEPROM with 16-byte page write capability, 10 MHz max clock frequency at 4.5–5.5 V, and industrial temperature range (−40°C to +85°C). It features hardware write protection (WP pin), HOLD function for interrupt-safe pausing, and block-level write protection (none/¼/½/all array). Used in microcontroller-based systems for configuration storage, calibration data retention, and firmware parameter backup.

For engineers reviewing the 25LC010AT-I/MNY datasheet, 25LC010AT-I/MNY pinout, 25LC010AT-I/MNY application, or 25LC010AT-I/MNY equivalent, key selection criteria include VCC range (2.5–5.5 V), page write timing (≤5 ms), endurance (1 million cycles), data retention (>200 years), and compatibility with standard SPI Mode 0,0 and Mode 1,1 interfaces.

Technical Context

The 25LC010AT-I/MNY implements a true SPI-compatible serial interface with separate SI (data in) and SO (data out) lines, CS-controlled device selection, and SCK-synchronized communication. Its internal architecture includes an 8-bit instruction register, page latches, and HV generator for EEPROM programming.

It supports byte and page write operations with automatic address incrementing during sequential reads, STATUS register polling (WIP/WEL/BP bits), and hardware-assisted write protection via WP pin and BP0/BP1 bits. The HOLD pin enables mid-sequence suspension without losing state, critical for real-time interrupt handling in embedded hosts.

Key Specifications

Pinout & Package

25LC010AT-I/MNY is packaged in an 8-lead 2×3 mm DFN (MNY suffix), with exposed pad (connected to VSS or left floating). Pin numbering follows standard DFN top-view orientation with pin 1 marked by laser dot.

Key Features

Applications

Equivalent & Alternatives

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

Compared with 25AA010AT-I/MNY and AT25010B-MAHL-T, the 25LC010AT-I/MNY provides optimal balance of 2.5–5.5 V robustness, DFN space savings, and Microchip's long-term supply commitment - making it ideal for new industrial and automotive designs where voltage headroom and miniaturization are priorities.

Availability

25LC010AT-I/MNY is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, and automotive body control modules requiring stable component supply across extended temperature ranges and multi-year production cycles.

Supply support for 25LC010AT-I/MNY 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 components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.

The 25LC010A family was designed specifically for cost-sensitive, space-constrained embedded systems needing reliable, low-power serial EEPROM with industrial-grade reliability and SPI simplicity - targeting industrial controls, medical devices, and automotive subsystems.

FAQ

What is the maximum clock frequency supported by the 25LC010AT-I/MNY?

The 25LC010AT-I/MNY supports up to 10 MHz clock frequency when VCC is between 4.5 V and 5.5 V. At 2.5 V ≤ VCC < 4.5 V, the maximum is 5 MHz, and at 1.8 V ≤ VCC < 2.5 V, it drops to 3 MHz. These limits ensure reliable setup/hold timing and signal integrity across its specified operating range. The 25LC010AT-I/MNY datasheet defines exact AC timing parameters per voltage bin.

Does the 25LC010AT-I/MNY support page write operations, and what is the page size?

Yes, the 25LC010AT-I/MNY supports page write mode with a fixed page size of 16 bytes. Up to 16 consecutive bytes can be loaded into the page buffer and written in a single internal cycle (≤5 ms). Writes crossing a 16-byte boundary wrap to the start of the current page - so application firmware must enforce alignment to avoid unintended overwrites. This behavior is inherent to the 25LC010AT-I/MNY architecture.

How does the HOLD pin function on the 25LC010AT-I/MNY, and what are its timing requirements?

The HOLD pin on the 25LC010AT-I/MNY pauses ongoing SPI communication without resetting internal state. To activate HOLD, the pin must be pulled low while SCK is low; to resume, it must be raised high while SCK remains low. During HOLD, SI/SO/SCK are tri-stated and ignored except CS. Setup/hold times (THS/THH) are voltage-dependent (20–80 ns), defined in the 25LC010AT-I/MNY AC characteristics table.

What write protection mechanisms are implemented in the 25LC010AT-I/MNY?

The 25LC010AT-I/MNY implements three layered protections: (1) hardware WP pin - disables all writes when low; (2) write enable latch (WEL bit) - must be set via WREN command before any write; (3) nonvolatile BP0/BP1 bits - configure 0%, 25%, 50%, or 100% array block protection. All three must be satisfied for a write to proceed - a key reliability feature of the 25LC010AT-I/MNY.

Is the 25LC010AT-I/MNY compatible with standard SPI modes, and which ones?

Yes, the 25LC010AT-I/MNY is fully compatible with SPI Mode 0,0 (CPOL = 0, CPHA = 0) and Mode 1,1 (CPOL = 1, CPHA = 1). Data is sampled on the rising edge of SCK (Mode 0,0) or falling edge (Mode 1,1), and output changes occur after the falling (Mode 0,0) or rising (Mode 1,1) edge. This dual-mode support ensures interoperability with diverse microcontrollers - a core design feature of the 25LC010AT-I/MNY.