Renesas AT25XE011-XMHN-T

Overview

AT25XE011-XMHN-T from Renesas Electronics is a 1-Mbit SPI serial flash memory IC optimized for ultra-low-power, code+data storage in IoT edge nodes and battery-powered industrial sensors. It operates from 1.65 V to 3.6 V, supports Dual-Output Read at up to 104 MHz, delivers 6 ns clock-to-output timing, and features granular 256-byte page erase and 4-kByte block erase for efficient firmware updates and data logging.

For engineers reviewing the AT25XE011-XMHN-T datasheet, AT25XE011-XMHN-T pinout, AT25XE011-XMHN-T application, or AT25XE011-XMHN-T equivalent, key selection criteria include its 200 nA ultra-deep power-down current, 128-byte OTP security register with factory-programmed unique ID, JEDEC-standard device identification, and hardware write protection via WP pin - all critical for secure, long-life embedded deployments.

Technical Context

The AT25XE011-XMHN-T implements a dual-I/O SPI interface supporting Modes 0 and 3, with SI and SO pins functioning as bidirectional I/O0/I/O1 during Dual-Output Read to deliver 2-bit-per-clock throughput. Its internal architecture includes SRAM data buffer, Y/X decoders, and control logic enabling byte/page program (1–256 bytes), four-tiered erase (page/4k/32k/chip), and automatic erase/program failure reporting.

Hardware-based protection is enforced via dedicated WP and HOLD inputs, while software-controlled locking uses status register bits and block protection commands. The integrated 128-byte OTP register contains 64 bytes of factory-unique identifier and 64 bytes user-programmable space, supporting device serialization and secure key storage without external crypto elements.

Key Specifications

Pinout & Package

AT25XE011-XMHN-T is packaged in an 8-lead TSSOP (3.0 mm × 4.4 mm, 0.65 mm pitch), RoHS-compliant and halide-free. Pin functions are electrically validated per Renesas DS-AT25XE011-059 Rev. J.

Key Features

Applications

Equivalent & Alternatives

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

Compared with W25Q01JV-IQ and MT25QL01GBBB8E12-0SIT, the AT25XE011-XMHN-T uniquely balances ultra-low 200 nA power-down, integrated 128-byte OTP with factory ID, and Dual-Output Read - making it optimal for secure, battery-constrained IoT endpoints where size, energy, and identity assurance are co-critical.

Availability

AT25XE011-XMHN-T is available at Aetrix Electronics and suitable for smart meter firmware storage, industrial sensor data logging, and IoT edge node OTA updates requiring stable component supply, long-term lifecycle support, and guaranteed green packaging compliance.

Supply support for AT25XE011-XMHN-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

Renesas Electronics is a global semiconductor leader delivering trusted microcontrollers, analog, power, and memory solutions for automotive, industrial, infrastructure, and IoT applications.

The AT25XE011-XMHN-T belongs to Renesas' ultra-low-power serial flash memory product line, engineered specifically for energy-constrained, secure, and long-lifecycle embedded systems in the IoT and industrial automation markets.

FAQ

What is the maximum operating frequency supported by the AT25XE011-XMHN-T?

The AT25XE011-XMHN-T supports a maximum clock frequency of 104 MHz during Dual-Output Read operations. This is specified under AC characteristics in the official Renesas datasheet (DS-AT25XE011-059 Rev. J). Standard Read Array mode supports up to 80 MHz. The 104 MHz capability directly enables faster firmware loading and reduced host MCU wait states in time-sensitive applications.

Does the AT25XE011-XMHN-T include hardware write protection?

Yes, the AT25XE011-XMHN-T includes dedicated hardware write protection via the WP (Write Protect) pin. When asserted low, it locks protected memory sectors independently of software commands or power state. The WP pin is internally pulled high and can be left floating if unused, though Renesas recommends external connection to VCC for noise immunity. This feature ensures critical boot or configuration data cannot be overwritten by firmware bugs or transient faults.

How does the Dual-Output Read function work on the AT25XE011-XMHN-T?

The AT25XE011-XMHN-T implements Dual-Output Read using both the SI (I/O0) and SO (I/O1) pins as simultaneous outputs, clocking two bits per SCK falling edge. This requires the 3BH opcode and is distinct from standard SPI Read (03H). The feature is electrically validated and documented in Section 5.1 and Figure 9 of the Renesas datasheet. It effectively doubles read bandwidth without increasing clock frequency, reducing data transfer time for large firmware images.

What is the purpose and structure of the OTP security register in the AT25XE011-XMHN-T?

The AT25XE011-XMHN-T includes a 128-byte One-Time Programmable (OTP) security register: 64 bytes are factory-programmed with a unique device identifier, and 64 bytes are user-programmable for keys, certificates, or calibration data. Once programmed, OTP bytes cannot be erased or rewritten. This register supports secure device authentication, anti-counterfeiting, and cryptographic key binding - critical for IoT and medical applications requiring traceability and tamper resistance.

What power-down modes does the AT25XE011-XMHN-T support, and what are their typical current draws?

The AT25XE011-XMHN-T supports two ultra-low-power states: Deep Power-Down (4.5 µA typical) and Ultra-Deep Power-Down (200 nA typical). Both are entered via dedicated commands (B9h and 79h respectively) and exited with standard wake-up sequences. These modes are fully characterized in Section 12.3–12.6 of the Renesas datasheet and enable multi-year battery operation in intermittently active sensor nodes where the AT25XE011-XMHN-T spends >99.9% of its time in standby.