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Renesas AT25PE20-SHN-T
- Part No.:
- AT25PE20-SHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
AT25PE20-SHN-T.pdf
- Description:
- IC FLASH 2MBIT SPI 85MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,992
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Product details
Overview
AT25PE20-SHN-T from Adesto Technologies is a 2-Mbit serial Flash memory with SPI interface, 1.65V–3.6V single-supply operation, 85MHz max clock speed, 6ns clock-to-output time, and configurable 256/264-byte page size. It integrates one 256/264-byte SRAM buffer for E²PROM emulation and supports RapidS™ high-speed read modes for voice, firmware, and image storage in embedded systems.
For engineers reviewing the AT25PE20-SHN-T datasheet, AT25PE20-SHN-T pinout, AT25PE20-SHN-T application, or AT25PE20-SHN-T equivalent, key selection criteria include ultra-deep power-down current (300nA), flexible erase granularity (page/block/sector/chip), JEDEC-compliant ID read, industrial temperature range (−40°C to +85°C), and SOIC-8/UDFN-8 package compatibility.
Technical Context
The AT25PE20-SHN-T implements a sequential-access DataFlash-L® architecture with dedicated SRAM buffer and self-timed program/erase cycles. Its SPI interface supports modes 0 and 3, RapidS™ protocols, and three continuous read opcodes (0Bh, 03h, 01h) optimized for high-frequency, standard, and low-power operation respectively.
Memory organization comprises 1,024 pages of 256 bytes (default) or 264 bytes (customer option), plus a matching SRAM buffer. Erase operations are hierarchical-page (256/264 B), block (2KB), sector (32KB), or chip (2 Mbit)-and all programming requires no external high voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 2,162,688 bits (2-Mbit), organized as 1,024 pages × 256/264 bytes |
| Supply voltage | 1.65V–3.6V single supply - enables direct interfacing with 1.8V/2.5V/3.3V microcontrollers without level shifters |
| Max clock frequency | 85MHz - supports high-throughput firmware updates and streaming audio playback |
| Read latency | 6ns tV (clock-to-output) - minimizes wait states in real-time control loops |
| Power-down current | 300nA typical ultra-deep power-down - extends battery life in always-on sensor nodes |
| Endurance & retention | 100,000 program/erase cycles per page; 20-year data retention - suitable for field-upgradable industrial firmware |
| Operating temperature | −40°C to +85°C - qualified for industrial-grade embedded applications |
Pinout & Package
AT25PE20-SHN-T is packaged in an 8-lead SOIC (0.208" wide) with standard pinout and RoHS-compliant lead finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; initiates command sequence on high-to-low transition and terminates on low-to-high |
| SCK | Serial Clock | Input clock; latches SI on rising edge, clocks SO on falling edge - defines timing for all SPI transactions |
| SI | Serial Input | Command/address/data input; ignored when CS is deasserted - ensures noise immunity during idle periods |
| SO | Serial Output | Data output; tri-stated when CS is high - prevents bus contention in multi-device SPI configurations |
| WP | Write Protect | Hardware-level sector protection override; active-low, internally pulled high - provides fail-safe write blocking independent of software state |
| RESET | Reset | Active-low hardware reset; terminates ongoing operations and returns state machine to idle - critical for recovery after brown-out or watchdog timeout |
| VCC | Power Supply | 1.65V–3.6V main supply; powers all logic and memory arrays - eliminates need for auxiliary voltage rails |
| GND | Ground | Reference return path for VCC; must be low-impedance connection to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Configurable page size | 256-byte default or 264-byte customer option - enables optimal alignment with legacy bootloader sectors or ECC overhead requirements |
| RapidS™ read modes | Three dedicated opcodes (0Bh/03h/01h) for high-speed, standard, and ultra-low-power reads - allows dynamic power/performance trade-off at runtime |
| SRAM data buffer | 256/264-byte on-chip buffer - serves as scratchpad memory and enables atomic byte-alterable E²PROM emulation via read-modify-write |
| Flexible erase hierarchy | Page (256/264 B), block (2KB), sector (32KB), chip (2 Mbit) - reduces wear on frequently updated firmware partitions while preserving static configuration data |
| Security register | 128-byte factory-programmed unique identifier - supports device authentication and secure boot binding without external crypto ICs |
Applications
| Industrial Firmware Storage | Medical Sensor Data Logging |
|---|---|
Use Scenario: Storing and updating firmware images in programmable logic controllers (PLCs) with field upgrade capability. IC Role / Device Role / Timing Role: Non-volatile code storage with fast read access and robust erase/write endurance. Use Value: Enables secure, in-system firmware updates over CAN or Ethernet without requiring external programming hardware or high-voltage signals. | Use Scenario: Capturing time-stamped physiological waveforms (ECG, SpO₂) in portable diagnostic devices between wireless uploads. IC Role / Device Role / Timing Role: Buffered sequential data recorder with low standby current and deterministic write latency. Use Value: 300nA ultra-deep power-down extends battery life >6 months; page-erase granularity preserves historical logs during partial overwrites. |
| Automotive Infotainment Bootloader | Smart Meter Firmware Vault |
Use Scenario: Hosting primary bootloader and fail-safe recovery image in automotive head units with ASIL-B functional safety requirements. IC Role / Device Role / Timing Role: Dual-image storage with hardware write protection and rapid verification read capability. Use Value: WP pin and sector protection register prevent accidental corruption during OTA updates; 6ns tV accelerates boot-time integrity checks. | Use Scenario: Securing metrology firmware and calibration constants in ANSI C12.22-compliant electricity meters with 20-year field lifetime. IC Role / Device Role / Timing Role: Tamper-resistant, long-retention configuration vault with factory-unique ID binding. Use Value: 128-byte factory-programmed ID enables cryptographic binding to utility-specific keys; 20-year retention meets ANSI/IEEE meter certification mandates. |
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 W25Q20EW | 2-Mbit SPI Flash, 1.7V–2.0V min supply, no SRAM buffer, no RapidS™, 133MHz max clock | Lacks E²PROM emulation capability and ultra-low-power read modes; higher minimum VCC | Choose for cost-sensitive designs where buffer-based read-modify-write is unnecessary and 1.7V+ supply is guaranteed. |
| Macronix MX25L2006E | 2-Mbit SPI Flash, 2.7V–3.6V supply only, no configurable page size, no security register, 80MHz max clock | Requires 2.7V+ supply; lacks factory-unique ID and deep power-down (1µA vs. 300nA) | Choose when operating exclusively at 3.3V and unique device identity is not required for secure boot or traceability. |
Compared with W25Q20EW and MX25L2006E, the AT25PE20-SHN-T delivers unique value through its 1.65V operation, integrated SRAM buffer for byte-alterable storage, RapidS™ low-power read modes, and factory-programmed security register - making it optimal for battery-powered, safety-critical, or firmware-integrity-sensitive designs.
Availability
AT25PE20-SHN-T is available at Aetrix Electronics and suitable for industrial firmware storage, medical sensor data logging, automotive infotainment bootloaders, smart meter firmware vaults, and portable IoT edge node applications requiring stable component supply across extended product lifecycles.
Supply support for AT25PE20-SHN-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
Adesto Technologies (acquired by Dialog Semiconductor, now part of Renesas Electronics) specialized in low-power, high-reliability non-volatile memory and analog interface solutions for industrial and IoT applications.
The AT25PE20-SHN-T belongs to the DataFlash-L® family, designed specifically for sequential-access, low-pin-count, ultra-low-power embedded storage where firmware integrity, field upgradability, and battery longevity are critical.
FAQ
What is the maximum clock frequency supported by the AT25PE20-SHN-T during continuous array read operations?
The AT25PE20-SHN-T supports up to 85MHz for continuous array read using the RapidS™ 0Bh opcode. This is the highest operational speed defined by the fCAR1 specification. Lower-speed alternatives include 03h (standard mode, fCAR2-limited) and 01h (low-power mode, fCAR3-limited), enabling dynamic power/performance scaling. All modes maintain seamless page-boundary wrapping without delay penalties.
Does the AT25PE20-SHN-T require external high voltage for program or erase operations?
No, the AT25PE20-SHN-T does not require external high voltage. All program and erase operations are performed using only the standard 1.65V–3.6V VCC supply. Internal charge pumps generate necessary voltages, and all cycles-including page, block, sector, and chip erase-are fully self-timed. This eliminates the need for auxiliary power circuitry and simplifies system design for battery-operated or space-constrained applications.
How does the SRAM buffer in the AT25PE20-SHN-T enable E²PROM emulation?
The AT25PE20-SHN-T's 256/264-byte SRAM buffer enables E²PROM emulation through a single-command read-modify-write operation. Data is first loaded into the buffer via Buffer Write (84h), then atomically transferred to main memory using Buffer to Main Memory Page Program (83h or 88h). This avoids full-page erases for byte-level updates, extending endurance and reducing latency compared to conventional Flash-based emulation schemes.
What package types are available for the AT25PE20-SHN-T, and what does the "SHN-T" suffix indicate?
The AT25PE20-SHN-T uses an 8-lead SOIC package with 0.208" body width and RoHS-compliant (Pb/Halide-free) finish. The "SHN-T" suffix denotes this specific SOIC variant: S = SOIC, H = 0.208" width, N = lead-free/RoHS, T = tape-and-reel packaging. An alternative UDFN-8 (5×6×0.6mm) variant exists but is designated separately (e.g., AT25PE20-MAHN-T); SHN-T is not pin-compatible with UDFN.
Can the AT25PE20-SHN-T be used in systems requiring data retention beyond 10 years?
Yes, the AT25PE20-SHN-T guarantees 20 years of data retention under industrial temperature conditions (−40°C to +85°C) and rated endurance (100,000 program/erase cycles per page). This exceeds typical 10-year requirements for infrastructure equipment, medical devices, and utility meters. Retention is validated per JEDEC JESD22-A117 and confirmed in the official datasheet DS-25PE20–139D–2/2022.
AT25PE20-SHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 2Mbit
- Memory Organization:
- 256 Bytes x 1024 pages
- Memory Interface:
- SPI
- Clock Frequency:
- 85 MHz
- Write Cycle Time - Word, Page:
- 8µs, 3ms
- 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
AT25PE20-SHN-T FAQ
1.How can I place an order for AT25PE20-SHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25PE20-SHN-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 AT25PE20-SHN-T reliable?
The price and inventory of AT25PE20-SHN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25PE20-SHN-T is usually 5 days.
3.What payment methods are accepted for AT25PE20-SHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25PE20-SHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25PE20-SHN-T?
AT25PE20-SHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25PE20-SHN-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 AT25PE20-SHN-T?
For technical support, including AT25PE20-SHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25PE20-SHN-T requirements.
6.How does Aetrix verify that AT25PE20-SHN-T is sourced from the original manufacturer or authorized distributors?
All AT25PE20-SHN-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 AT25PE20-SHN-T meets industry standards.
7.What is the process for return or replacement of AT25PE20-SHN-T?
All AT25PE20-SHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25PE20-SHN-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 AT25PE20-SHN-T part is unused and in its original packaging.
Return procedure for AT25PE20-SHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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