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Microchip Technology AT25080N-10SC-1.8
- Part No.:
- AT25080N-10SC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25080N-10SC-1.8.pdf
- Description:
- IC EEPROM 8KBIT SPI 3MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,475
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Product details
Overview
AT25080N-10SC-1.8 from Microchip Technology (formerly Atmel) is an 8-Kbit SPI serial EEPROM organized as 1024 × 8 bits, supporting 1.8V to 3.6V operation, 5 ms typical write cycle time, and 32-byte page write mode. It delivers high-reliability nonvolatile storage for low-power embedded systems including battery-powered sensors and portable instrumentation.
For engineers reviewing the AT25080N-10SC-1.8 datasheet, AT25080N-10SC-1.8 pinout, AT25080N-10SC-1.8 application, or AT25080N-10SC-1.8 equivalent, key selection criteria include its 1.8V–3.6V supply range, hardware/software write protection via WP pin and status register, HOLD functionality for interruptible communication, and industrial-grade temperature support up to +85°C.
Technical Context
The AT25080N-10SC-1.8 operates as a slave device in SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), using separate SI and SO pins for full-duplex serial data transfer with MSB-first framing. Its instruction register accepts op-codes such as WREN, WRITE, RDSR, and WRSR to manage memory access and protection states.
Internal block write protection is implemented via nonvolatile BP0/BP1 bits in the status register, enabling selective locking of 0%, 25%, 50%, or 100% of the 1024-word array. The WP pin provides hardware-level inhibition of status register writes when WPEN=1, while the HOLD pin suspends ongoing serial transfers without resetting sequence state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit words) - sufficient for firmware parameter storage, calibration data, or configuration registers in compact microcontroller systems. |
| Supply Voltage Range | 1.8 V to 3.6 V - enables direct interfacing with 1.8V/2.5V/3.3V logic domains without level-shifting. |
| Max Clock Frequency | 0.5 MHz at 1.8V - supports reliable timing margins in ultra-low-power designs where clock speed is constrained by voltage scaling. |
| Write Cycle Time | 20 ms maximum - defines worst-case latency for persistent data commits; typical 5 ms allows rapid parameter updates. |
| Endurance & Retention | 1 million write cycles / 100-year data retention - ensures long-term reliability in field-deployed devices with infrequent but critical writes. |
| Standby Current | 0.2 µA max at 1.8V - minimizes quiescent power draw during sleep modes in energy-harvesting or battery-operated applications. |
| Operating Temperature | -40°C to +85°C - qualified for industrial environments including automotive cabin modules and industrial controllers. |
Pinout & Package
AT25080N-10SC-1.8 uses an 8-lead JEDEC SOIC (8S1) package, 0.150" wide, with standard gull-wing leads and 1.27 mm pitch. Pin 1 is marked by a notch or dot; package dimensions conform to JEDEC MS-012AA.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be held low during entire SPI transaction; controls SO output impedance (high-Z when CS high). |
| SCK | Serial Clock | Input-only synchronous clock; timing determines max interface speed; requires stable edges per AC specs (tWH/tWL ≥ 800 ns @ 1.8V). |
| SI | Serial Data Input | Accepts op-code, address, and data bits MSB-first; ignored unless CS is low and device is not in HOLD or write cycle. |
| SO | Serial Data Output | Tri-state output delivering read data or status bits; transitions to high-Z after CS goes high or during HOLD/write cycles. |
| GND | Ground Reference | Primary return path for VCC and all I/O; requires low-impedance connection to minimize noise coupling into sensitive EEPROM cells. |
| VCC | Power Supply | Single 1.8–3.6V supply; bypass capacitor (0.1 µF ceramic) required near pin to suppress transient current spikes during write cycles. |
| WP | Write Protect | Hardware lock for status register writes when WPEN=1; tied low to prevent accidental configuration changes in deployed systems. |
| HOLD | Communication Suspend | Pauses ongoing SPI transfer without aborting; must be asserted while SCK is low to avoid bus contention or bit misalignment. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V–3.6V Operation | Enables direct integration into modern ultra-low-voltage MCUs (e.g., ARM Cortex-M0+, MSP430FR) without external regulators or level shifters. |
| Page Write (32 bytes) | Reduces total programming time vs. byte-write; allows efficient bulk updates of configuration blocks or sensor calibration tables. |
| Four-Tier Block Protection | Supports flexible security partitioning-e.g., protect bootloader settings (25%), leave application parameters writable (75%). |
| Self-Timed Write Cycle | Eliminates need for external timing control or polling delay loops; internal timer ensures full write completion before READY flag clears. |
| HOLD Pin Functionality | Permits dynamic arbitration in multi-master or shared-SPI-bus systems (e.g., MCU + FPGA), avoiding transaction loss during priority interrupts. |
Applications
| Smart Energy Metering | Industrial PLC I/O Modules |
|---|---|
|
Use Scenario: Storing tariff schedules, meter calibration coefficients, and tamper-event logs in utility-grade electricity meters operating on 2.4 GHz RF mesh networks. IC Role / Device Role / Timing Role: Nonvolatile configuration store accessed asynchronously by metering SoC during boot and periodically during firmware updates. Use Value: 100-year data retention ensures accurate billing history across product lifetime; 1.8V compatibility reduces system power budget by eliminating level-shifter ICs. |
Use Scenario: Holding module identification codes, channel calibration offsets, and diagnostic fault histories in DIN-rail mounted analog input/output expansion units. IC Role / Device Role / Timing Role: Persistent parameter bank for hot-swap-capable I/O modules communicating over RS-485 Modbus RTU. Use Value: HOLD pin allows seamless SPI bus arbitration between main controller and module firmware during live reconfiguration without data corruption. |
| Portable Medical Sensors | Automotive Body Control Units |
|
Use Scenario: Recording patient-specific sensor gain settings, usage timestamps, and battery health metrics in handheld ECG or pulse oximetry devices. IC Role / Device Role / Timing Role: Low-power configuration memory accessed only during startup or user-initiated recalibration. Use Value: 0.2 µA standby current extends single-CR2032 battery life beyond 5 years; WP pin prevents inadvertent overwrite during ESD-prone handling. |
Use Scenario: Storing seat position presets, mirror angle memories, and lighting profiles in vehicle door modules powered from 12V battery via LDO. IC Role / Device Role / Timing Role: Dedicated EEPROM for user-customizable settings independent of main MCU flash wear cycles. Use Value: -40°C to +85°C rating ensures reliable operation in under-hood and door cavity environments; block protection isolates factory defaults from end-user edits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95080-DRMN6TP/K | Same 8-Kbit SPI EEPROM, but rated for 1.7V–5.5V; max clock 20 MHz at 5V (vs. 0.5 MHz at 1.8V for AT25080N-10SC-1.8); no HOLD pin. | Lacks HOLD functionality; better suited for high-speed host interfaces where suspend capability is unnecessary. | Select when higher throughput is needed and system design can tolerate absence of HOLD; verify WP logic compatibility. |
| BR24G08NUX-10 | 8-Kbit I²C EEPROM (not SPI); 1.7V–5.5V supply; 400 kHz standard-mode / 1 MHz fast-mode; includes write-cycle interrupt pin. | Requires I²C bus instead of SPI; interrupt pin simplifies polling-free write completion detection. | Choose for I²C-based platforms or where deterministic write-complete signaling is preferred over RDSR polling. |
Compared with M95080-DRMN6TP/K and BR24G08NUX-10, the AT25080N-10SC-1.8 uniquely balances ultra-low-voltage operation, HOLD-enabled bus arbitration, and industrial temperature resilience-making it optimal for resource-constrained, interrupt-sensitive embedded systems where SPI is mandated.
Availability
AT25080N-10SC-1.8 is available at Aetrix Electronics and suitable for smart metering, industrial I/O modules, portable medical sensors, and automotive body control units requiring stable component supply across extended temperature ranges and low-voltage operation.
Supply support for AT25080N-10SC-1.8 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 acquired Atmel in 2016 and maintains full product support, documentation, and manufacturing continuity for the AT25xxx EEPROM family.
The AT25080N-10SC-1.8 belongs to Microchip's legacy SPI serial EEPROM product line, engineered for robust, low-power nonvolatile data storage in industrial, automotive, and consumer applications demanding proven reliability and long-term availability.
FAQ
What is the minimum supply voltage required for reliable operation of the AT25080N-10SC-1.8?
The AT25080N-10SC-1.8 is specified for guaranteed operation from 1.8 V to 3.6 V. Below 1.8 V, timing parameters (e.g., tWC, fSCK) and functional behavior-including write enable latch stability and status register reads-are not assured. System designs must ensure VCC remains within this window during all active and standby phases to maintain AT25080N-10SC-1.8 data integrity and command responsiveness.
Does the AT25080N-10SC-1.8 support SPI Mode 1 or Mode 2?
No, the AT25080N-10SC-1.8 supports only SPI Mode 0 (CPOL = 0, CPHA = 0) and Mode 3 (CPOL = 1, CPHA = 1), as explicitly stated in its datasheet features. Attempting Mode 1 (CPOL = 0, CPHA = 1) or Mode 2 (CPOL = 1, CPHA = 0) will result in incorrect sampling of op-codes and data, leading to failed READ/WRITE commands or undefined status register behavior in the AT25080N-10SC-1.8.
How does the HOLD pin function during an active write cycle in the AT25080N-10SC-1.8?
The HOLD pin has no effect once an internal write cycle begins in the AT25080N-10SC-1.8. HOLD is only effective during active serial communication (i.e., while CS is low and SCK is toggling). During a write cycle, the device ignores all inputs except RDSR; asserting HOLD will neither pause nor abort the ongoing tWC (up to 20 ms) operation. The AT25080N-10SC-1.8 must complete the write before responding to new commands.
Can the AT25080N-10SC-1.8 be used in place of the AT25080N-10SC without hardware modifications?
Yes-the AT25080N-10SC-1.8 shares identical pinout, package (8S1 SOIC), and logic-level compatibility with the standard AT25080N-10SC. The only difference is the extended 1.8V–3.6V supply range versus 2.7V–5.5V for the -2.7 variant. If the host system operates at ≥2.7V, both parts are functionally interchangeable; however, AT25080N-10SC-1.8 adds flexibility for future 1.8V designs without PCB change.
What happens if the WP pin is held low while the WPEN bit is '0' in the AT25080N-10SC-1.8 status register?
When WPEN = 0, the WP pin is disabled regardless of its logic level-so holding WP low has no protective effect on the AT25080N-10SC-1.8. All write operations (including WRSR) remain enabled, and block protection is determined solely by BP0/BP1 bits. This allows safe initial programming of the status register (e.g., setting WPEN=1) even with WP tied to ground, a common practice in systems where physical WP routing is fixed.
AT25080N-10SC-1.8 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:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 3 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.8V ~ 3.6V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25080N-10SC-1.8 FAQ
1.How can I place an order for AT25080N-10SC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25080N-10SC-1.8 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 AT25080N-10SC-1.8 reliable?
The price and inventory of AT25080N-10SC-1.8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25080N-10SC-1.8 is usually 5 days.
3.What payment methods are accepted for AT25080N-10SC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25080N-10SC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25080N-10SC-1.8?
AT25080N-10SC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25080N-10SC-1.8 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 AT25080N-10SC-1.8?
For technical support, including AT25080N-10SC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25080N-10SC-1.8 requirements.
6.How does Aetrix verify that AT25080N-10SC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT25080N-10SC-1.8 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 AT25080N-10SC-1.8 meets industry standards.
7.What is the process for return or replacement of AT25080N-10SC-1.8?
All AT25080N-10SC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT25080N-10SC-1.8, 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 AT25080N-10SC-1.8 part is unused and in its original packaging.
Return procedure for AT25080N-10SC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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