AT45DB161E-SHD-T Description

The Microchip AT45DB161E-SHD-T is a 16-Mbit (2-Mbyte) serial DataFlash® memory device designed for high-performance data storage in embedded systems. It operates on a 2.3V to 3.6V supply and uses an advanced SPI interface for fast data transfer up to 85 MHz. The device integrates flexible page programming, rapid sector erase capability, and dual buffer architecture to enable seamless read/write operations without delays. Its small footprint, low-power consumption, and extended endurance make it ideal for space-constrained and energy-sensitive designs.

AT45DB161E-SHD-T Features

Memory Capacity – 16 Mbits (2 MBytes) of DataFlash® non-volatile storage.

High-Speed SPI Interface – Operates up to 85 MHz for fast data throughput.

Dual SRAM Buffers – Allows read and write operations to occur simultaneously.

Flexible Page Size – Configurable between 512 and 528 bytes per page.

Low Power Operation – Typical active current 12 mA; deep power-down mode <1 µA.

Data Retention – Over 20 years, with endurance rated for 100,000 program/erase cycles.

Security Features – Unique device ID for system-level authentication.

Temperature Range – Industrial-grade operation from –40°C to +85°C.

Package – Compact 8-lead SOIC (208 mil) form factor.

Erase/Program Efficiency – Page, block, and chip erase modes for fast reprogramming.

AT45DB161E-SHD-T Applications

Industrial Control Systems – Reliable parameter storage and firmware updates.

Consumer Electronics – Data logging for portable devices like MP3 players and cameras.

Automotive Electronics – Event recording and ECU firmware storage.

Medical Devices – Secure storage for calibration data and patient records.

Networking Equipment – Boot code and configuration data for routers and switches.

IoT Endpoints – Low-power, high-density memory for edge devices.

AT45DB161E-SHD-T CAD Model

Symbol

Footprint

3D Model

AT45DB161E-SHD-T Alternatives

Winbond W25Q16JV – 16-Mbit SPI NOR flash with similar speed and power specs.

Micron N25Q016A – High-performance 16-Mbit SPI flash with extended temperature range.

Adesto AT25DF161A – Serial flash with wide voltage range and low-power modes.

Cypress S25FL116K – Industrial-grade 16-Mbit flash with high-speed SPI.

GigaDevice GD25Q16C – Economical 16-Mbit SPI flash with good endurance.

AT45DB161E-SHD-T Manufacturer

Microchip Technology Inc. is a leading global provider of microcontroller, analog, mixed-signal, connectivity, and memory solutions. Founded in 1989 and headquartered in Chandler, Arizona, USA, the company designs, manufactures, and sells a wide range of semiconductor products that power applications across industrial, automotive, consumer, aerospace, communications, and IoT markets.

Microchip is best known for its PIC® and dsPIC® microcontrollers, SAM ARM®-based MCUs, advanced analog and interface devices, and SST® memory products. Its portfolio also includes Ethernet, USB, CAN, wireless connectivity, security ICs, and FPGA solutions (via its acquisition of Microsemi).

With a business model focused on long product lifecycles, customer-driven support, and comprehensive development tools such as MPLAB® X IDE, Microchip has earned a reputation as a trusted partner for embedded design engineers worldwide. The company operates globally, serving millions of customers in more than 120 countries.

AT45DB161E-SHD-T FAQs

Can the AT45DB161E-SHD-T support continuous read operations without waiting for programming to finish?

Yes, thanks to its dual buffer architecture, it can perform read operations while a page is being programmed into memory.

What’s the typical erase time for a full chip erase?

A chip erase typically takes around 30 seconds at standard operating conditions.

Can I change the page size after initial programming?

Yes, the page size is configurable between 512 and 528 bytes, but changing it requires an erase of the entire device.

Does this device support deep power-down mode to save battery life?

Yes, it has a deep power-down mode consuming less than 1 µA, making it suitable for battery-powered systems.

Is the AT45DB161E-SHD-T drop-in compatible with older AT45DB161D devices?

It is generally pin and function compatible, but firmware changes may be needed due to slight command differences.