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Microchip Technology AT25F2048N-10SU-2.7
- Part No.:
- AT25F2048N-10SU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25F2048N-10SU-2.7.pdf
- Description:
- IC FLASH 2MBIT SPI 33MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,816
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Product details
Overview
AT25F2048N-10SU-2.7 from Atmel (now Microchip) is a 2 Mbit serial Flash memory IC optimized for low-voltage embedded systems, featuring SPI interface compatibility (Modes 0 and 3), 33 MHz max clock rate, 2.7–3.6 V operation, and sector-based write protection across four 64 KB sectors.
For engineers reviewing the AT25F2048N-10SU-2.7 datasheet, AT25F2048N-10SU-2.7 pinout, AT25F2048N-10SU-2.7 application, or AT25F2048N-10SU-2.7 equivalent, this page delivers verified electrical specs, JEDEC SOIC package details, self-timed erase/program timing, hardware/software write protection mechanisms, and real-world use cases in industrial firmware storage and boot code retention.
Technical Context
The AT25F2048N-10SU-2.7 implements a synchronous SPI slave interface with dedicated SI/SO pins, CS-controlled selection, and HOLD/ WP pins for communication suspension and hardware-level write lockout. It uses an 8-bit instruction register with MSB-first data transfer and supports RDID, RDSR, WRSR, READ, PROGRAM, SECTOR ERASE, and CHIP ERASE op-codes.
Internally, it organizes 262,144 × 8-bit memory as four uniform 64 KB sectors (000000–00FFFF to 030000–03FFFF), each containing 256 pages. Block protection is controlled via nonvolatile BP0/BP1 bits in the status register, enabling 1/4, 1/2, or full-array lockout - independent of WP pin state when WPEN = 0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2,097,152 bits (262,144 × 8), sufficient for bootloader + configuration storage in resource-constrained microcontrollers |
| Supply Voltage Range | 2.7 V to 3.6 V - enables direct interfacing with 3.3 V logic without level-shifting |
| Max Clock Frequency | 33 MHz - supports high-speed firmware updates and fast read access in real-time systems |
| Byte Program Time | 30 µs typical - enables rapid field updates of small configuration blocks without system stall |
| Sector Erase Time | 1 second per 64 KB sector - predictable latency for firmware partition management |
| Endurance | 10,000 write cycles - suitable for applications requiring infrequent but reliable reprogramming (e.g., calibration data) |
| Data Retention | 20 years at +85°C - ensures long-term reliability in industrial temperature environments |
Pinout & Package
AT25F2048N-10SU-2.7 is housed in an 8-lead JEDEC SOIC package (8S1), 0.150" wide body, with gull-wing leads and RoHS-compliant NiPdAu finish. Dimensions: 4.80–5.00 mm × 5.79–6.20 mm × 1.35–1.75 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; device ignores SI and drives SO high-Z when CS is high |
| SCK | Serial Clock Input | Master-generated clock; timing-critical for all SPI transactions (min 9 ns high/low time) |
| SI | Serial Data Input | Receives op-codes, addresses, and program data; MSB-first, setup/hold times enforced |
| SO | Serial Data Output | Drives read data and status bits; transitions within 9 ns of SCK edge (tV) |
| GND | Ground Reference | Signal and power return path; decoupling capacitor required near VCC/GND pins |
| VCC | Power Supply | 2.7–3.6 V supply; max 4.2 V absolute rating; ICC1 = 17 mA typical during 33 MHz read |
| WP | Write Protect Input | Hardware lockout for status register writes when WPEN = 1 and WP = low |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting sequence; requires SCK low before assertion |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperates with common MCU SPI peripherals without mode translation logic |
| Page Programming (256-byte) | Reduces programming overhead vs. byte-by-byte writes; address wraps within page boundary |
| Four Independent 64 KB Sectors | Enables atomic firmware updates: one sector active while another is erased/rewritten |
| Hardware + Software Write Protection | WP pin + BP0/BP1 bits allow layered security: hardware lockout for critical sectors, software control for dynamic partitions |
| Self-Timed Erase/Program Cycles | Removes need for external timing control; RDSR polling confirms completion (RDY bit) |
| Manufacturer/Product ID Read (RDID) | Verifies device identity in-system (0x1F 0x63) - essential for BOM validation and counterfeit detection |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing firmware images and update payloads in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Nonvolatile storage for boot code and application binaries; accessed via SPI during cold start and OTA updates. Use Value: 20-year data retention and 10K endurance ensure firmware integrity over equipment lifetime without maintenance intervention. |
Use Scenario: Holding calibrated sensor offsets, user preferences, and regulatory audit logs in portable diagnostic instruments. IC Role / Device Role / Timing Role: Secure parameter store with hardware write protection on critical calibration sectors (BP1/BP0 = 11). Use Value: WP pin + status register lock prevents accidental overwrite during battery-powered operation or ESD events. |
| Automotive Infotainment Bootloader | Smart Meter Firmware Partitioning |
Use Scenario: Hosting dual-image bootloader in automotive head units to support fail-safe firmware recovery after interrupted updates. IC Role / Device Role / Timing Role: Dual-sector allocation (Sector 1 = active, Sector 2 = standby); sector erase enables atomic swap. Use Value: 1-second sector erase time enables sub-2-second recovery - meeting automotive functional safety timing constraints. |
Use Scenario: Isolating utility-certified metering firmware from field-upgradable UI and communication stacks in AMI meters. IC Role / Device Role / Timing Role: Hardware-protected top 64 KB (Sector 4) stores metrology code; remaining sectors host updatable layers. Use Value: BP0/BP1 configuration prevents unauthorized modification of certified code while allowing remote feature upgrades. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Winbond W25Q20CLSNIG | 2 Mbit, 3V, 104 MHz max clock, Quad SPI support, 2.7–3.6 V supply | Higher bandwidth for graphics/UI assets; lacks HOLD pin and identical sector architecture | Preferred when system requires faster read throughput and supports QSPI protocol stack |
| Micron MT25QL02GCBB8E12-0SIT | 2 Gbit density, 3V, 133 MHz, Octal DTR, 1.7–2.0 V or 2.7–3.6 V supply options | Not drop-in: larger density, different command set, no HOLD pin, incompatible sector map | Only suitable for new designs targeting future scalability; not a replacement for AT25F2048N-10SU-2.7 footprint or timing behavior |
Compared with W25Q20CLSNIG and MT25QL02GCBB8E12-0SIT, the AT25F2048N-10SU-2.7 offers deterministic 33 MHz SPI timing, HOLD functionality for multi-master arbitration, and precise 64 KB sector granularity ideal for legacy bootloader partitioning - making it optimal for cost-sensitive, timing-critical industrial control systems where protocol simplicity and pin compatibility are prioritized over raw speed or density.
Availability
AT25F2048N-10SU-2.7 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, automotive infotainment bootloader hosting, smart meter firmware partitioning, and embedded system boot code retention requiring stable component supply across extended product lifecycles.
Supply support for AT25F2048N-10SU-2.7 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
Atmel Corporation, now part of Microchip Technology, designs high-reliability nonvolatile memory and microcontroller solutions for industrial, automotive, and consumer applications.
The AT25F2048 series was developed as a low-voltage, SPI-compatible Flash memory family targeting space-constrained embedded systems needing robust, sector-protected firmware storage with minimal external components.
FAQ
What is the operating voltage range for AT25F2048N-10SU-2.7?
The AT25F2048N-10SU-2.7 operates from 2.7 V to 3.6 V, with absolute maximum supply voltage rated at 4.2 V. It draws 17 mA typical during 33 MHz read operations at 3.6 V and only 2–10 µA in standby (CS = VCC). This low-voltage range allows direct integration with 3.3 V microcontrollers without level shifters.
Does AT25F2048N-10SU-2.7 support both SPI Mode 0 and Mode 3?
Yes, AT25F2048N-10SU-2.7 explicitly supports SPI Modes 0 (CPOL = 0, CPHA = 0) and 3 (CPOL = 1, CPHA = 1), as confirmed in its official datasheet. This dual-mode capability ensures interoperability with a broad range of microcontrollers, including legacy 8051 and modern ARM Cortex-M families, without requiring firmware workarounds.
How does hardware write protection work on AT25F2048N-10SU-2.7?
Hardware write protection on AT25F2048N-10SU-2.7 is enabled by pulling the WP pin low *and* setting the WPEN bit to "1" in the status register. When active, it inhibits all writes to the status register (including BP0/BP1) and protects locked sectors from program/erase commands. If WPEN = 0, the WP pin is ignored - allowing flexible system-level protection schemes.
What is the sector erase time for AT25F2048N-10SU-2.7?
The AT25F2048N-10SU-2.7 requires 1 second per 64 KB sector for erase operations, as specified in Table 3 of its datasheet. This time is self-timed and fixed - no external delay or polling is needed beyond checking the RDY bit via RDSR. The consistent 1 s duration simplifies firmware timing logic for safe sector management.
Can AT25F2048N-10SU-2.7 be used in industrial temperature applications?
Yes, AT25F2048N-10SU-2.7 is qualified for industrial temperature range (–40°C to +85°C), as indicated by the "Industrial Temperature" designation in its ordering information. Its DC and AC characteristics, including supply current, timing parameters, and endurance, are guaranteed across this full range - making it suitable for factory automation, outdoor metering, and transportation electronics.
AT25F2048N-10SU-2.7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 2Mbit
- Memory Organization:
- 256K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 33 MHz
- Write Cycle Time - Word, Page:
- 50µs
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25F2048N-10SU-2.7 FAQ
1.How can I place an order for AT25F2048N-10SU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25F2048N-10SU-2.7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for AT25F2048N-10SU-2.7 reliable?
The price and inventory of AT25F2048N-10SU-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25F2048N-10SU-2.7 is usually 5 days.
3.What payment methods are accepted for AT25F2048N-10SU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25F2048N-10SU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25F2048N-10SU-2.7?
AT25F2048N-10SU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25F2048N-10SU-2.7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for AT25F2048N-10SU-2.7?
For technical support, including AT25F2048N-10SU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25F2048N-10SU-2.7 requirements.
6.How does Aetrix verify that AT25F2048N-10SU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25F2048N-10SU-2.7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT25F2048N-10SU-2.7 meets industry standards.
7.What is the process for return or replacement of AT25F2048N-10SU-2.7?
All AT25F2048N-10SU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25F2048N-10SU-2.7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The AT25F2048N-10SU-2.7 part is unused and in its original packaging.
Return procedure for AT25F2048N-10SU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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