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Renesas AT25DN512C-XMHFGP-B
- Part No.:
- AT25DN512C-XMHFGP-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT25DN512C-XMHFGP-B.pdf
- Description:
- IC FLASH 512KBIT SPI 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,245
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Product details
Overview
AT25DN512C-XMHFGP-B from Adesto Technologies is a 512-Kbit serial SPI Flash memory IC with dual-output read support, 2.3V–3.6V single-supply operation, 104MHz max clock frequency, 6ns clock-to-output delay, and industrial-temperature-grade (−40°C to +85°C) performance. It serves as nonvolatile code/data storage in microcontroller boot systems and firmware update modules.
For engineers reviewing the AT25DN512C-XMHFGP-B datasheet, AT25DN512C-XMHFGP-B pinout, AT25DN512C-XMHFGP-B application, or AT25DN512C-XMHFGP-B equivalent, key selection considerations include its 256-byte page erase granularity, 128-byte OTP security register (64B factory UID + 64B user-programmable), ultra-deep power-down current (350nA typical), and hardware write protection via WP pin.
Technical Context
The AT25DN512C-XMHFGP-B implements a standard SPI interface supporting Modes 0 and 3, with dual-output read (3Bh opcode) enabling two bits per SCK falling edge for doubled throughput versus standard read. Its internal address counter auto-increments during sequential reads, and it uses a dedicated status register with WEL, RDY/BUSY, and EPE (Erase/Program Error) flags.
Memory architecture features three-tiered erase: 256-byte pages, uniform 4-Kbyte blocks, and uniform 32-Kbyte blocks - optimized to minimize wasted space in mixed code-and-data layouts. The device integrates a 128-byte OTP security register with factory-programmed unique ID and user-programmable fields for secure serialization and ESN storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 512 Kbit (64 Kbytes), sufficient for bootloader images or configuration data in resource-constrained embedded systems |
| Supply Voltage | 2.3V–3.6V single supply - eliminates need for charge pumps or auxiliary rails in low-voltage IoT and portable designs |
| Max Clock Frequency | 104 MHz - enables high-speed firmware loading and real-time parameter updates without CPU bottlenecking |
| Read Latency | 6 ns clock-to-output (tV) - supports tight timing margins in high-performance MCU interfaces |
| Erase Granularity | 256-byte page / 4-Kbyte block / 32-Kbyte block - allows precise over-the-air (OTA) patching without erasing full application sections |
| Power Consumption | 350 nA ultra-deep power-down current - extends battery life in always-on sensor nodes and wearables |
| Data Retention | 20 years - ensures long-term reliability in industrial control firmware and medical device calibration storage |
| Endurance | 100,000 program/erase cycles - supports frequent field-upgrade scenarios like smart meter firmware revisions |
Pinout & Package
AT25DN512C-XMHFGP-B is packaged in an 8-pad Ultra Thin DFN (2 mm × 3 mm × 0.6 mm), RoHS-compliant and halogen-free. Pin functions are validated per DS-25DN512C–037H–02/2022.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable signal; rising edge ends operations and places SO in high-impedance state - essential for multi-device SPI bus arbitration |
| SCK | Serial clock input | Controls data sampling (rising edge) and output (falling edge); supports up to 104 MHz - defines maximum interface bandwidth |
| SI (I/O0) | Serial input / Dual-output data line | Input for commands/addresses/data; becomes I/O0 output during Dual-Output Read (3Bh) - enables 2-bit-per-cycle throughput |
| SO (I/O1) | Serial output / Dual-output data line | Primary output for standard read; remains I/O1 during Dual-Output Read - pairs with SI to double data rate |
| WP | Hardware write protect input | Low-active pin that locks protected sectors; internally pulled high - provides fail-safe firmware write protection independent of software state |
| HOLD | Serial communication pause input | Low-active hold function pauses SPI transfer without deselecting device - preserves internal state during interrupt servicing |
| VCC | Power supply | 2.3V–3.6V main supply; powers all logic and memory array - compatible with Li-ion, coin-cell, and regulated 3.3V rails |
| GND | Ground reference | System ground return path; must be low-impedance to maintain signal integrity and minimize read noise |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Output Read (3Bh) | Two bits per SCK falling edge - doubles effective read bandwidth vs. standard SPI, reducing firmware load time by ~50% |
| Flexible Erase Architecture | Page (256B), 4-KB block, 32-KB block, and full-chip erase - enables granular OTA updates without disrupting adjacent code or data |
| OTP Security Register | 128 bytes total (64B factory UID + 64B user-programmable) - supports device authentication, secure key storage, and ESN binding |
| Ultra-Low Power Modes | 350 nA ultra-deep power-down and 7.5 µA deep power-down - extends shelf life and operational runtime in battery-powered endpoints |
| Hardware Write Protection | WP pin controls sector locking - prevents accidental firmware corruption during brown-out or reset glitches |
| JEDEC ID & UID Support | Standard 9Fh manufacturer/device ID + unique 64B factory serial number - simplifies BOM traceability and anti-counterfeiting verification |
Applications
| IoT Edge Node Firmware Storage | Industrial PLC Configuration Memory |
|---|---|
Use Scenario: Storing boot firmware and OTA update payloads in battery-powered wireless sensors with 10+ year deployment life. IC Role / Device Role / Timing Role: Nonvolatile code storage with fast read access and low-power retention - acts as primary boot source for ARM Cortex-M0+ MCUs. Use Value: 20-year data retention and 100K endurance ensure reliable field upgrades across product lifetime; 350nA deep power-down minimizes self-discharge. |
Use Scenario: Holding calibrated I/O mapping tables and safety-critical configuration parameters in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Industrial-grade persistent storage with hardware write protection - retains settings across power cycles and EMI events. Use Value: WP pin and sector-locking prevent unintended reconfiguration; −40°C to +85°C rating guarantees operation in uncontrolled cabinet temperatures. |
| Medical Device Calibration Data | Smart Meter Firmware Vault |
Use Scenario: Securing factory-calibrated sensor offsets and linearization coefficients in portable diagnostic equipment requiring regulatory traceability. IC Role / Device Role / Timing Role: Tamper-resistant data vault using OTP security register - stores immutable calibration signatures and serial IDs. Use Value: 64-byte factory UID enables per-unit audit trail; OTP write-once capability prevents post-deployment tampering of calibration records. |
Use Scenario: Hosting encrypted firmware images and cryptographic keys in utility smart meters subject to remote firmware validation and anti-tampering requirements. IC Role / Device Role / Timing Role: Secure, high-endurance flash for signed firmware partitions - supports AES-128 decryption and signature verification workflows. Use Value: Dual-output read accelerates firmware validation; 100K P/E cycles accommodate frequent regulatory-mandated updates over 15+ year service life. |
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 W25Q40EW | 4-Mbit density, 133 MHz max clock, no dual-output read mode, 1.65–1.95V/2.7–3.6V dual supply | Larger capacity but lacks 256-byte page erase and OTP security register; requires voltage translation for 2.3V systems | Select when higher density and faster clock are prioritized over ultra-low voltage operation and secure serialization |
| Macronix MX25L4033F | 4-Mbit density, 104 MHz max clock, standard SPI read only, 2.7–3.6V supply, no OTP register | Same speed and voltage range as AT25DN512C-XMHFGP-B but lacks dual-output read, page-erase optimization, and security features | Choose for cost-sensitive applications where 512-Kbit capacity is sufficient and security/low-voltage operation are not required |
Compared with W25Q40EW and MX25L4033F, the AT25DN512C-XMHFGP-B delivers unique value in ultra-low-voltage (2.3V) operation, dual-output throughput acceleration, fine-grained 256-byte page erase, and integrated OTP security - making it optimal for compact, secure, battery-powered edge devices.
Availability
AT25DN512C-XMHFGP-B is available at Aetrix Electronics and suitable for IoT edge node firmware storage, industrial PLC configuration memory, and medical device calibration data retention requiring stable component supply and long-term lifecycle assurance.
Supply support for AT25DN512C-XMHFGP-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 (now part of Dialog Semiconductor, part of Renesas Electronics) specialized in low-power, high-reliability nonvolatile memory and analog ICs for IoT and industrial applications.
The AT25DN512C-XMHFGP-B belongs to Adesto's DataFlash® family, designed specifically for energy-efficient, secure, and flexible code-and-data storage in battery-operated and safety-critical embedded systems.
FAQ
What is the operating voltage range of the AT25DN512C-XMHFGP-B?
The AT25DN512C-XMHFGP-B operates from 2.3V to 3.6V on a single supply rail. This wide low-voltage range enables direct interfacing with 2.5V and 3.3V microcontrollers without level-shifting, and supports extended battery life in coin-cell or energy-harvesting systems. The device does not require separate programming or erase voltages.
Does the AT25DN512C-XMHFGP-B support dual-output read, and how is it enabled?
Yes, the AT25DN512C-XMHFGP-B supports Dual-Output Read using opcode 3Bh. When this command is issued, both SI (I/O0) and SO (I/O1) become active outputs, delivering two bits per SCK falling edge. This mode requires a dummy byte after the 3-byte address and is valid up to 50 MHz - doubling effective read throughput compared to standard SPI read (03h/0Bh).
How is hardware write protection implemented on the AT25DN512C-XMHFGP-B?
Hardware write protection on the AT25DN512C-XMHFGP-B is controlled by the WP pin, which is active-low and internally pulled high. When WP is driven low, it locks protected memory sectors regardless of software commands - preventing accidental or malicious writes during power transients or firmware faults. The pin may be left floating if unused, though external pull-up to VCC is recommended.
What is the structure and purpose of the OTP security register in the AT25DN512C-XMHFGP-B?
The AT25DN512C-XMHFGP-B includes a 128-byte OTP (One-Time Programmable) security register: 64 bytes are factory-programmed with a unique device identifier, and 64 bytes are user-programmable once. This register supports secure device serialization, electronic serial number (ESN) storage, and locked cryptographic key provisioning - critical for anti-counterfeiting and regulatory compliance in medical and industrial systems.
What erase options does the AT25DN512C-XMHFGP-B provide, and why is page-level erase important?
The AT25DN512C-XMHFGP-B supports four erase modes: 256-byte page, 4-Kbyte block, 32-Kbyte block, and full-chip. Page-level erase is critical because it enables precise over-the-air (OTA) firmware patching - updating only modified code segments without erasing entire application regions. This preserves memory efficiency and reduces update time and power consumption in constrained embedded systems.
AT25DN512C-XMHFGP-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 512Kbit
- Memory Organization:
- 64K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 8µs, 1.75ms
- Access Time:
- -
- Voltage - Supply:
- 2.3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT25DN512C-XMHFGP-B FAQ
1.How can I place an order for AT25DN512C-XMHFGP-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25DN512C-XMHFGP-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 AT25DN512C-XMHFGP-B reliable?
The price and inventory of AT25DN512C-XMHFGP-B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25DN512C-XMHFGP-B is usually 5 days.
3.What payment methods are accepted for AT25DN512C-XMHFGP-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25DN512C-XMHFGP-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25DN512C-XMHFGP-B?
AT25DN512C-XMHFGP-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25DN512C-XMHFGP-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 AT25DN512C-XMHFGP-B?
For technical support, including AT25DN512C-XMHFGP-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25DN512C-XMHFGP-B requirements.
6.How does Aetrix verify that AT25DN512C-XMHFGP-B is sourced from the original manufacturer or authorized distributors?
All AT25DN512C-XMHFGP-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 AT25DN512C-XMHFGP-B meets industry standards.
7.What is the process for return or replacement of AT25DN512C-XMHFGP-B?
All AT25DN512C-XMHFGP-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25DN512C-XMHFGP-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 AT25DN512C-XMHFGP-B part is unused and in its original packaging.
Return procedure for AT25DN512C-XMHFGP-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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