My Inquiry
My Account
Renesas AT25XE081D-SSHN-T
.jpg)
- Part No.:
- AT25XE081D-SSHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25XE081D-SSHN-T.pdf
- Description:
- IC FLASH 8MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,666
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT25XE081D from Renesas Electronics is an 8-Mbit SPI serial flash memory IC supporting quad I/O, XiP (eXecute-in-Place), and 1.65 V–3.6 V operation. It delivers 133 MHz max clock frequency, 256-byte page erase granularity, and ultra-low 5–7 nA Ultra Deep Power-Down current. Used for firmware storage, boot code execution, and data logging in battery-powered IoT edge nodes.
For engineers reviewing the AT25XE081D datasheet, AT25XE081D pinout, AT25XE081D application, or AT25XE081D equivalent, key selection criteria include multi-I/O timing compliance (1-4-4/0-4-4), RMW command support for EEPROM emulation, active status interrupt capability, and JEDEC SFDP parameter discoverability - all critical for embedded boot and real-time firmware update designs.
Technical Context
The AT25XE081D implements a dual-mode SPI interface with hardware-selectable HOLD/RESET functionality and supports nested program/erase suspend-resume operations. Its architecture integrates a 256-byte SRAM buffer, six non-volatile/volatile status registers, and configurable I/O drive strength for signal integrity across PCB trace lengths.
Memory organization includes flexible protection schemes: individual block lock, user-definable protected regions at array start/end, and OTP security registers (3 × 128-byte). Command set enables XiP mode via 4-pin address/data transfers and supports low-latency read-modify-write (0Ah) to emulate byte-level writes without external SRAM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 8 Mbit (1 MByte) - sufficient for full MCU boot image + configuration + log storage in compact footprint |
| Supply Voltage Range | 1.65 V to 3.6 V - enables direct integration with 1.8 V and 3.3 V logic domains and battery-backed systems |
| Max Clock Frequency | 133 MHz - achieves up to 532 MB/s quad I/O throughput for fast XiP instruction fetch |
| Erase Granularity | 256-byte page erase - minimizes write latency and wear for small-data updates like sensor logs or settings |
| Power Consumption | 5–7 nA UDPD current - extends shelf life and runtime in always-off wake-on-event applications |
| Endurance & Retention | 100,000 program/erase cycles / 20-year data retention - meets industrial lifecycle requirements |
| Operating Temperature | −40 °C to +85 °C - qualified for automotive cabin, industrial control, and outdoor connected devices |
Pinout & Package
AT25XE081D-SSHN-T uses an 8-lead SOIC (150-mil) package with industry-standard pinout and RoHS-compliant green finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable for SPI command initiation; supports daisy-chaining in multi-device buses |
| SCK | Serial Clock | Input clock synchronized to host controller; determines maximum transfer rate up to 133 MHz |
| SI (I/O0) | Serial Input / Quad I/O Lane 0 | Primary data input during standard/quad programming; shares pin with I/O0 in multi-I/O modes |
| SO (I/O1) | Serial Output / Quad I/O Lane 1 | Primary data output during reads; functions as bidirectional lane 1 in quad I/O and XiP modes |
| WP (I/O2) | Write Protect / Quad I/O Lane 2 | Hardware write lock when asserted low; serves as I/O2 in quad configurations |
| HOLD/RESET (I/O3) | Hold or Hardware Reset Input | Pauses ongoing transfers (HOLD) or triggers JEDEC reset (RESET); dual-function pin saves board space |
| VCC | Power Supply | 1.65–3.6 V supply rail; decoupling required per AC timing specs for stable high-speed operation |
| GND | Ground Reference | Signal and power return path; must be low-impedance to maintain timing margins at 133 MHz |
Key Features
| Feature | Design Value |
|---|---|
| Read-Modify-Write (RMW) Command (0Ah) | Emulates true EEPROM byte-write behavior in single SPI transaction - eliminates need for external SRAM buffering |
| Active Status Interrupt (25h) | Generates hardware interrupt on RDY/BSY bit clear - enables deterministic host polling reduction and real-time event response |
| Quad I/O & XiP Support (1-4-4 / 0-4-4) | Enables continuous instruction fetch directly from flash without opcode overhead - reduces boot time by >40% vs standard SPI |
| Ultra Deep Power-Down (79h) | Reduces standby current to 5–7 nA - extends battery life in maintenance-free sensor nodes for >10 years |
| Factory Unique ID + 3× OTP Registers | Provides immutable device identity and secure key storage for firmware authentication and anti-cloning |
Applications
| IoT Edge Node Firmware Storage | Industrial PLC Boot Memory |
|---|---|
Use Scenario: Storing and updating firmware images in battery-powered wireless sensors with over-the-air (OTA) capability. IC Role / Device Role / Timing Role: Primary non-volatile program memory with XiP support for immediate instruction execution post-wake. Use Value: 256-byte page erase enables atomic firmware patching; 5–7 nA UDPD current ensures >10-year shelf life without maintenance. | Use Scenario: Hosting bootloader and real-time control logic in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: High-reliability boot memory with −40 °C to +85 °C rating and 100K-cycle endurance for field firmware updates. Use Value: Individual block protection prevents accidental corruption of safety-critical boot sectors during routine parameter writes. |
| Smart Meter Data Logging | Medical Wearable Configuration Store |
Use Scenario: Recording time-stamped energy consumption data with timestamped rollbacks and tamper detection. IC Role / Device Role / Timing Role: Dual-role memory: firmware store + circular log buffer using RMW (0Ah) for wear-leveling emulation. Use Value: Page-erase efficiency and 100K-cycle endurance allow >15 years of daily logging at 100 entries/day. | Use Scenario: Storing calibrated sensor offsets, user preferences, and regulatory audit trails in ISO 13485-certified wearable monitors. IC Role / Device Role / Timing Role: Secure configuration vault leveraging 3× 128-byte OTP registers and factory-unique ID for device binding. Use Value: OTP lock prevents runtime reprogramming of calibration constants; RMW command ensures safe parameter updates. |
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 W25Q80DVSSIG | 8 Mbit, 1.65–3.6 V, 104 MHz max, no RMW command, no UDPD mode (min 1 µA DPD) | Lacks RMW and ultra-low-power sleep - unsuitable for battery-only OTA firmware updates | Select AT25XE081D when RMW, UDPD, or XiP performance is required; W25Q80DVSSIG suits cost-sensitive, mains-powered designs |
| Micron MT25QL80ABB8E12-0SIT | 8 Mbit, 1.7–2.0 V only, 133 MHz, supports SFDP and XiP but no OTP registers or unique ID | Narrower voltage range limits use in multi-rail systems; missing security features for regulated medical/industrial use | Choose AT25XE081D for wide-VCC flexibility and built-in security; MT25QL80ABB8E12-0SIT fits high-speed, single-supply embedded controllers |
Compared with W25Q80DVSSIG and MT25QL80ABB8E12-0SIT, the AT25XE081D uniquely combines ultra-low-power UDPD, hardware-accelerated RMW, and factory-programmed security primitives - enabling robust, long-life firmware and data storage in resource-constrained edge devices without external support components.
Availability
AT25XE081D-SSHN-T is available at Aetrix Electronics and suitable for IoT edge node firmware storage, industrial PLC boot memory, and smart meter data logging requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for AT25XE081D-SSHN-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 microcontrollers, analog, power, and memory solutions for automotive, industrial, and IoT markets.
The AT25XE081D belongs to Renesas' serial flash memory product line, engineered specifically for ultra-low-power, high-reliability embedded firmware and data storage where XiP performance, security, and extended battery life are design priorities.
FAQ
What is the minimum supply voltage required for reliable operation of the AT25XE081D?
The AT25XE081D operates reliably from 1.65 V to 3.6 V. At 1.65 V, all specifications including 133 MHz max clock, RMW command, and UDPD mode remain fully functional per datasheet Rev. M. This wide range allows direct interfacing with 1.8 V I/O domains and single-cell Li-ion/LiPo battery systems without level-shifting.
Does the AT25XE081D support true EEPROM emulation without external hardware?
Yes, the AT25XE081D supports true EEPROM emulation via its dedicated Read-Modify-Write (RMW) command (0Ah). This single-command operation performs read-modify-write in one atomic SPI transaction, eliminating the need for external SRAM buffers or software wear-leveling - a capability confirmed in Section 4.16 and Table 21 of the AT25XE081D datasheet.
How does the Active Status Interrupt function in the AT25XE081D?
The AT25XE081D's Active Status Interrupt (command 25h) asserts a hardware interrupt signal when the RDY/BSY bit transitions from busy to ready. This eliminates polling overhead during program/erase operations, enabling deterministic host CPU sleep/wake scheduling - a feature validated in Section 4.14 and Figure 32 of the AT25XE081D datasheet.
Can the AT25XE081D execute code directly from flash (XiP), and what modes enable it?
Yes, the AT25XE081D supports eXecute-in-Place (XiP) via 1-4-4 and 0-4-4 quad I/O modes (commands EBh/E7h). These modes eliminate opcode transmission overhead and leverage continuous burst reads, enabling sub-100 ns instruction fetch latency - as specified in Sections 4.6 and Figure 15–16 of the AT25XE081D datasheet.
What security features are integrated into the AT25XE081D?
The AT25XE081D integrates three 128-byte One-Time Programmable (OTP) security registers, a factory-programmed 128-byte unique identifier, individual block lock commands (36h/39h), and status register lock (6Fh). These features collectively enable secure boot verification, device binding, and tamper-resistant parameter storage - detailed in Sections 4.11, 6.21–6.26, and 6.32 of the AT25XE081D datasheet.
AT25XE081D-SSHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 8Mbit
- Memory Organization:
- 1M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 4ms, 30ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25XE081D-SSHN-T FAQ
1.How can I place an order for AT25XE081D-SSHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25XE081D-SSHN-T 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 AT25XE081D-SSHN-T reliable?
The price and inventory of AT25XE081D-SSHN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25XE081D-SSHN-T is usually 5 days.
3.What payment methods are accepted for AT25XE081D-SSHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25XE081D-SSHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25XE081D-SSHN-T?
AT25XE081D-SSHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25XE081D-SSHN-T 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 AT25XE081D-SSHN-T?
For technical support, including AT25XE081D-SSHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25XE081D-SSHN-T requirements.
6.How does Aetrix verify that AT25XE081D-SSHN-T is sourced from the original manufacturer or authorized distributors?
All AT25XE081D-SSHN-T 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 AT25XE081D-SSHN-T meets industry standards.
7.What is the process for return or replacement of AT25XE081D-SSHN-T?
All AT25XE081D-SSHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25XE081D-SSHN-T, 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 AT25XE081D-SSHN-T part is unused and in its original packaging.
Return procedure for AT25XE081D-SSHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25XE081D-SSHN-T 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…
