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Renesas AT25PE16-SHF-B
- Part No.:
- AT25PE16-SHF-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
AT25PE16-SHF-B.pdf
- Description:
- IC FLASH 16MBIT SPI 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,250
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Product details
Overview
AT25PE16-SHF-B from Adesto Technologies is a 16-Mbit serial Flash memory with SPI interface, optimized for sequential data access in embedded systems. It features dual 512/528-byte SRAM buffers, supports RapidS™ high-speed read up to 85 MHz, and delivers 6 ns clock-to-output timing. Designed for firmware storage and real-time streaming applications such as voice logging and image buffering in industrial controllers.
For engineers reviewing the AT25PE16-SHF-B datasheet, AT25PE16-SHF-B pinout, AT25PE16-SHF-B application, or AT25PE16-SHF-B equivalent, this page provides verified pin functions, buffer-optimized programming modes, continuous-read timing specs, and industrial-grade power-down current values (300 nA typical) critical for low-power system design.
Technical Context
The AT25PE16-SHF-B implements a serial Flash architecture with two independent SRAM buffers enabling concurrent data reception and main array reprogramming. Its RapidS™ interface supports SPI modes 0 and 3 with up to 85 MHz SCK frequency and 6 ns tV (clock-to-output).
Memory organization comprises 4,096 pages of 512 bytes (default) or 528 bytes (customer-selectable), with flexible erase granularity: page (512/528 B), block (4 KB), sector (128 KB), or chip (16 Mbit). All program/erase cycles are self-timed and require no external high-voltage supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory density | 16 Mbit (2,097,152 bytes), organized as 4,096 × 512/528-byte pages |
| Supply voltage | 2.3 V to 3.6 V - enables direct integration with 2.5 V/3.3 V logic without level shifting |
| Max read speed | 85 MHz SCK - supports high-throughput firmware loading and real-time streaming |
| Read latency | 6 ns tV (clock-to-output) - minimizes wait states in time-critical boot sequences |
| Power-down current | 300 nA 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 at industrial temperature range |
| Page size option | User-configurable: 512 bytes (default) or 528 bytes (for E2PROM emulation support) |
Pinout & Package
AT25PE16-SHF-B is packaged in an 8-lead SOIC (0.208" wide) with standard pinout compatible across Adesto DataFlash-L devices.
| 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 | Controls data flow; SI latched on rising edge, SO driven on falling edge |
| SI | Serial Input | Accepts opcodes, addresses, and input data; ignored when CS is deasserted |
| SO | Serial Output | Drives read data; tri-stated when CS is high |
| WP | Write Protect | Hardware lock for sector protection; active-low, internally pulled high |
| RESET | Reset | Active-low hard reset; terminates ongoing operations and returns state machine to idle |
| VCC | Power Supply | 2.3–3.6 V single supply; powers all read, program, and erase functions |
| GND | Ground | Reference for VCC and signal levels; must be connected to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Dual SRAM buffers (512/528 B each) | Enables interleaved write operations - receive new data into one buffer while programming the other into Flash |
| RapidS™ high-speed read | Supports 85 MHz SCK with 6 ns tV - reduces firmware load time by >40% vs. standard SPI Flash |
| Continuous array read (03h/01h/0Bh/1Bh) | Four dedicated opcodes for trade-offs between speed (up to 85 MHz), power (01h: 15 MHz, ultra-low IDD), and simplicity (no dummy bytes for 03h/01h) |
| Flexible erase granularity | Page (512/528 B), block (4 KB), sector (128 KB), or chip - enables precise field updates without full reflash |
| 128-byte security register | Factory-programmed unique identifier - supports secure device authentication and traceability in production |
Applications
| Industrial Data Logger | Medical Device Firmware Storage |
|---|---|
|
Use Scenario: Continuous acquisition of sensor data (temperature, pressure, ECG) with periodic timestamped writes to nonvolatile memory. IC Role / Device Role / Timing Role: Sequential-access Flash memory serving as circular buffer and long-term archive; leverages dual SRAM buffers for zero-gap streaming. Use Value: Eliminates write stalls during background reprogramming - maintains ≥10 kSPS sustained logging without data loss. |
Use Scenario: Storing certified firmware images and calibration tables in portable diagnostic equipment requiring FDA-compliant update integrity. IC Role / Device Role / Timing Role: Secure, field-upgradable code storage with hardware write protection (WP pin) and factory-unique ID for audit trail. Use Value: Enables signed firmware validation and rollback-safe dual-image updates using page-erase granularity. |
| Smart Meter Boot Memory | Automotive Telematics Event Recorder |
|
Use Scenario: Hosting bootloader and secure boot keys in utility meters operating across -40°C to +85°C with 20-year lifetime requirements. IC Role / Device Role / Timing Role: Industrial-temperature-rated serial Flash with 20-year data retention and 100K-cycle endurance for infrequent but critical updates. Use Value: Meets IEC 62056 and ANSI C12.22 compliance via guaranteed retention and JEDEC-standard ID read for version verification. |
Use Scenario: Capturing CAN bus diagnostics and GPS timestamps during vehicle crash events, requiring instant-write capability under power interruption. IC Role / Device Role / Timing Role: High-reliability Flash with ultra-deep power-down (300 nA) and rapid page program for last-moment data capture. Use Value: Survives brown-out conditions: retains volatile buffer contents during VCC dip and commits to Flash upon recovery. |
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 W25Q16JW | 16 Mbit, 1.65–3.6 V, Quad SPI only; no dual SRAM buffers or RapidS™ mode | Lacks continuous-read optimization and interleaved buffering - unsuitable for real-time streaming | Select if Quad SPI bandwidth >80 MB/s required and buffering not needed |
| Microchip SST26VF016B | 16 Mbit, 2.7–3.6 V, supports DTR mode; no user-selectable page size or 528-byte buffer option | No E2PROM emulation support; lacks 128-byte factory UID register | Select for legacy SST-compatible designs requiring hardware reset pin and no deep power-down optimization |
Compared with AT25PE16-SHF-B, W25Q16JW offers higher raw throughput but no concurrent buffer operation, while SST26VF016B provides broader voltage tolerance but omits the 300 nA ultra-deep power-down and configurable page size essential for battery-powered streaming.
Availability
AT25PE16-SHF-B is available at Aetrix Electronics and suitable for industrial data loggers, medical device firmware storage, and smart meter boot memory requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT25PE16-SHF-B 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) specialized in low-power, high-reliability nonvolatile memory solutions for industrial and IoT applications.
The AT25PE16-SHF-B belongs to the DataFlash-L® family, designed specifically for sequential-access use cases where low pin count, ultra-low power consumption, and real-time streaming capability outweigh random-access performance needs.
FAQ
What is the default page size configuration for the AT25PE16-SHF-B?
The AT25PE16-SHF-B ships with a default page size of 512 bytes, supporting standard SPI addressing with 21-bit address space (A20–A0). The 528-byte option is customer-selectable during ordering and requires corresponding firmware adaptation for 22-bit addressing (PA11–PA0 + BA9–BA0). Both configurations retain identical buffer sizes and erase capabilities.
Does the AT25PE16-SHF-B support hardware write protection independent of software commands?
Yes, the AT25PE16-SHF-B includes a dedicated WP (Write Protect) pin that, when asserted low, blocks all program and erase operations on protected sectors regardless of software protection status. This hardware lock operates independently of the Sector Protection Register and remains active even if the device is reset or powered cycled.
How does the dual-buffer architecture of the AT25PE16-SHF-B improve write performance in streaming applications?
The AT25PE16-SHF-B uses two independent 512/528-byte SRAM buffers to decouple data ingestion from Flash programming. While Buffer 1 feeds data to the main memory array, Buffer 2 simultaneously accepts new incoming data - eliminating write stalls and enabling uninterrupted data streams at up to 85 MHz SCK rates.
What is the maximum clock frequency supported for continuous read operations on the AT25PE16-SHF-B?
The AT25PE16-SHF-B supports continuous array read at up to 85 MHz using the 1Bh opcode (RapidS™ high-frequency mode). Other read opcodes offer trade-offs: 0Bh supports up to fCAR1 (≤85 MHz), 03h up to fCAR2 (≤33 MHz), and 01h up to fCAR3 (≤15 MHz) - each with distinct dummy byte requirements and power profiles.
Is the AT25PE16-SHF-B qualified for industrial temperature operation?
Yes, the AT25PE16-SHF-B is fully specified and tested across the industrial temperature range of –40°C to +85°C. Its 20-year data retention, 100,000-cycle endurance, and 300 nA ultra-deep power-down current are guaranteed over this full range, making it suitable for uncontrolled-environment deployments like outdoor smart meters and factory-floor controllers.
AT25PE16-SHF-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- -
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR (SLC)
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 8µs, 4ms
- Access Time:
- 7 ns
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25PE16-SHF-B FAQ
1.How can I place an order for AT25PE16-SHF-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25PE16-SHF-B 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 AT25PE16-SHF-B reliable?
The price and inventory of AT25PE16-SHF-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25PE16-SHF-B is usually 5 days.
3.What payment methods are accepted for AT25PE16-SHF-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25PE16-SHF-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25PE16-SHF-B?
AT25PE16-SHF-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25PE16-SHF-B 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 AT25PE16-SHF-B?
For technical support, including AT25PE16-SHF-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25PE16-SHF-B requirements.
6.How does Aetrix verify that AT25PE16-SHF-B is sourced from the original manufacturer or authorized distributors?
All AT25PE16-SHF-B 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 AT25PE16-SHF-B meets industry standards.
7.What is the process for return or replacement of AT25PE16-SHF-B?
All AT25PE16-SHF-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25PE16-SHF-B, 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 AT25PE16-SHF-B part is unused and in its original packaging.
Return procedure for AT25PE16-SHF-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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