My Inquiry
My Account
Microchip Technology AT25F1024AN-10SU-2.7
- Part No.:
- AT25F1024AN-10SU-2.7
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25F1024AN-10SU-2.7.pdf
- Description:
- IC FLASH 1MBIT SPI 33MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,421
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT25F1024AN-10SU-2.7 from Atmel (now Microchip) is a 1 Mbit serial Flash memory IC optimized for low-voltage embedded systems, supporting SPI Mode 0/3 at up to 33 MHz, organized as 131,072 × 8-bit words, with sector-based erase (four 32 KB sectors), hardware/software write protection via WP pin and status register, and industrial temperature operation (–40°C to +85°C).
For engineers reviewing the AT25F1024AN-10SU-2.7 datasheet, AT25F1024AN-10SU-2.7 pinout, AT25F1024AN-10SU-2.7 application, or AT25F1024AN-10SU-2.7 equivalent, key selection considerations include its 2.7–3.6 V supply range, 256-byte page programming, self-timed 1 s/sector erase, 10,000 write cycles endurance, and JEDEC SOIC-8 (8S1) package compatibility.
Technical Context
The AT25F1024AN-10SU-2.7 implements a synchronous SPI slave interface with dedicated SI/SO pins, CS-controlled selection, and HOLD/HP suspend capability. It uses an 8-bit instruction register with MSB-first transmission and supports WREN/WRDI, RDSR/WRSR, READ/PROGRAM, SECTOR ERASE, CHIP ERASE, and RDID op-codes.
Its internal architecture features nonvolatile status register bits (BP0/BP1/WPEN) enabling configurable block write protection across four 32 KB sectors, hardware lockout via WP pin when WPEN=1, and automatic return to write-disable state after all internal write cycles - including status register reprogramming - which is self-timed and ignores all commands except RDSR during execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,048,576 bits (131,072 × 8-bit words) |
| Supply Voltage | 2.7 V to 3.6 V - enables direct integration into 3.3 V logic systems without level-shifting |
| Max Clock Frequency | 33 MHz - supports high-throughput firmware updates and boot code loading |
| Page Programming | 256-byte pages - reduces host MCU overhead vs. byte-by-byte writes |
| Sector Erase Time | 1.1 s per 32 KB sector - deterministic timing for system-level timeout handling |
| Endurance | 10,000 write cycles - sufficient for field-upgradable firmware storage in industrial controllers |
| Data Retention | 20 years - ensures long-term reliability in unpowered storage applications |
Pinout & Package
AT25F1024AN-10SU-2.7 is packaged in an 8-lead JEDEC SOIC (8S1), 0.150" wide body, lead-free/halogen-free, with gull-wing leads and standard SOIC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal - device responds only when CS is low; high-impedance SO when CS high |
| SCK | Serial Clock | Master-generated clock input - defines timing for SI/SO data sampling (SPI Mode 0/3 compatible) |
| SI | Serial Data Input | MOSI path - receives op-codes, addresses, and program data; ignored during HOLD or write cycles |
| SO | Serial Data Output | MISO path - outputs read data, status register contents, or ID codes; tri-stated when CS high or during HOLD |
| GND | Ground Reference | 0 V reference for all I/O and power pins - must be low-impedance connection for noise immunity |
| VCC | Power Supply | 2.7–3.6 V core supply - powers internal logic, charge pump, and I/O buffers |
| WP | Write Protect | Hardware lockout control - blocks status register writes when WP=low and WPEN=1 |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without resetting sequence - requires SCK low during assertion/deassertion |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0/3 Compatibility | Interoperates with standard microcontroller SPI peripherals without custom timing or polarity inversion logic |
| Configurable Block Protection | Four protection levels (none, top 1/4, top 1/2, full array) controlled by nonvolatile BP0/BP1 bits in status register |
| Hardware + Software Write Protection | Combines WP pin lockout with WRDI/WREN instructions and status register control for layered data integrity |
| Self-timed Internal Cycles | Eliminates need for external timing control - erase/program completion signaled via RDY bit in status register |
| Industrial Temperature Range | Guaranteed operation from –40°C to +85°C - suitable for factory automation, outdoor metering, and transportation electronics |
Applications
| Boot Code Storage | Firmware Update Memory |
|---|---|
Use Scenario: Storing bootloader and initial firmware image for microcontrollers in industrial PLCs. IC Role / Device Role / Timing Role: Nonvolatile serial Flash providing fast, reliable boot code access via SPI during power-on reset. Use Value: Enables deterministic boot within <100 ms using 33 MHz read speed and automatic address rollover for continuous reads. | Use Scenario: Holding field-upgradable application firmware in networked sensors deployed in remote locations. IC Role / Device Role / Timing Role: Reprogrammable storage for over-the-air (OTA) updates, managed via sector-erase and page-program operations. Use Value: Supports safe dual-bank update schemes using four independent 32 KB sectors and hardware write lockout during critical writes. |
| Configuration Parameter Storage | Embedded System Log Buffer |
Use Scenario: Retaining calibration data, device IDs, and user settings across power cycles in medical diagnostic equipment. IC Role / Device Role / Timing Role: Low-power, high-reliability parameter store accessed infrequently but requiring guaranteed 20-year retention. Use Value: Delivers 10,000 write cycles and 20-year data retention at 2.7 V - eliminating need for battery-backed SRAM. | Use Scenario: Capturing timestamped operational events (e.g., fault logs, sensor anomalies) in railway signaling controllers. IC Role / Device Role / Timing Role: Circular buffer implemented across multiple 256-byte pages, written sequentially with wraparound addressing. Use Value: Leverages page-mode programming (30–50 µs/byte) and HOLD pin suspension to avoid data loss during interrupt-driven logging. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| W25Q80DVSSIG | 8 Mbit capacity, 104 MHz max clock, Quad SPI support, different status register layout and protection scheme | Higher density and faster throughput; requires Quad SPI host support and revised driver software | Choose for bandwidth-constrained designs needing >1 Mbit or Quad mode acceleration |
| SST25VF010A-20-4I-SAE | 1 Mbit, 20 MHz max clock, no HOLD pin, simpler status register (no BP0/BP1), 5 V tolerant I/O | Limited speed and missing suspend capability; suited for legacy 5 V systems without HOLD dependency | Choose only if 5 V I/O tolerance is mandatory and 33 MHz performance is unnecessary |
Compared with AT25F1024AN-10SU-2.7, W25Q80DVSSIG offers higher density and speed but demands Quad SPI infrastructure, while SST25VF010A-20-4I-SAE sacrifices performance and HOLD functionality for 5 V compatibility - making AT25F1024AN-10SU-2.7 optimal for cost-sensitive, 3.3 V industrial systems requiring robust suspend and protection features.
Availability
AT25F1024AN-10SU-2.7 is available at Aetrix Electronics and suitable for industrial control panels, embedded telemetry modules, and medical device boot memory requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for AT25F1024AN-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, is a semiconductor manufacturer specializing in microcontrollers, Flash memory, and secure authentication solutions.
The AT25F1024A product line was designed for space-constrained, low-voltage embedded systems requiring reliable, SPI-compatible Flash with flexible write protection and industrial-grade environmental resilience.
FAQ
What is the operating voltage range for AT25F1024AN-10SU-2.7?
The AT25F1024AN-10SU-2.7 operates from 2.7 V to 3.6 V. This low-voltage range allows direct interfacing with 3.3 V microcontrollers and reduces power consumption in battery-powered or energy-efficient systems. Operation outside this range - including transient excursions beyond 4.2 V absolute maximum - may cause permanent damage.
Does AT25F1024AN-10SU-2.7 support both SPI Mode 0 and Mode 3?
Yes, AT25F1024AN-10SU-2.7 supports SPI Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1). The datasheet details Mode 0 operation, but electrical specifications and timing diagrams confirm compatibility with both modes, enabling interoperability with diverse host controllers without hardware modification.
How does the HOLD pin function on AT25F1024AN-10SU-2.7?
The HOLD pin on AT25F1024AN-10SU-2.7 suspends ongoing SPI communication without resetting the sequence. To pause, HOLD must be asserted low while SCK is low; to resume, HOLD is deasserted high while SCK remains low. During HOLD, SI inputs are ignored and SO enters high-impedance - preserving command state for later continuation.
What is the sector erase time for AT25F1024AN-10SU-2.7?
The typical sector erase time for AT25F1024AN-10SU-2.7 is 1.1 seconds per 32 KB sector. This self-timed cycle is internally managed, and the device signals readiness via the RDY bit (bit 0) in the status register - accessible via RDSR command - allowing host software to poll instead of using fixed delays.
Can AT25F1024AN-10SU-2.7 be used in automotive applications?
No, AT25F1024AN-10SU-2.7 is not qualified for automotive applications. The official Atmel documentation explicitly states that its products are "not suitable for, and shall not be used in, automotive applications" and are not warranted for safety-critical or life-support systems. It is rated for industrial temperature (–40°C to +85°C) but lacks AEC-Q100 qualification.
AT25F1024AN-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:
- 1Mbit
- Memory Organization:
- 128K 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
AT25F1024AN-10SU-2.7 FAQ
1.How can I place an order for AT25F1024AN-10SU-2.7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25F1024AN-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 AT25F1024AN-10SU-2.7 reliable?
The price and inventory of AT25F1024AN-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 AT25F1024AN-10SU-2.7 is usually 5 days.
3.What payment methods are accepted for AT25F1024AN-10SU-2.7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25F1024AN-10SU-2.7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25F1024AN-10SU-2.7?
AT25F1024AN-10SU-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25F1024AN-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 AT25F1024AN-10SU-2.7?
For technical support, including AT25F1024AN-10SU-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25F1024AN-10SU-2.7 requirements.
6.How does Aetrix verify that AT25F1024AN-10SU-2.7 is sourced from the original manufacturer or authorized distributors?
All AT25F1024AN-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 AT25F1024AN-10SU-2.7 meets industry standards.
7.What is the process for return or replacement of AT25F1024AN-10SU-2.7?
All AT25F1024AN-10SU-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25F1024AN-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 AT25F1024AN-10SU-2.7 part is unused and in its original packaging.
Return procedure for AT25F1024AN-10SU-2.7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25F1024AN-10SU-2.7 Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
