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Renesas AT25DF512C-MAHN-T
- Part No.:
- AT25DF512C-MAHN-T
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
AT25DF512C-MAHN-T.pdf
- Description:
- IC FLASH 512KBIT SPI 8UDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,546
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Product details
Overview
AT25DF512C-MAHN-T from Renesas Electronics is a 512-Kbit serial Flash memory IC with SPI interface, supporting dual-output read mode, 104 MHz max clock frequency, 6 ns clock-to-output delay, and flexible erase architecture (256-byte page, 4-kByte/32-kByte uniform blocks). It operates across 1.65 V–3.6 V and targets code shadowing and embedded data storage in resource-constrained IoT edge nodes.
For engineers reviewing the AT25DF512C-MAHN-T datasheet, AT25DF512C-MAHN-T pinout, AT25DF512C-MAHN-T application, or AT25DF512C-MAHN-T equivalent, key selection criteria include dual-read throughput, ultra-low deep power-down current (200 nA), OTP security register programmability, hardware write protection via WP pin, and compatibility with SPI Modes 0/3 in industrial temperature range.
Technical Context
The AT25DF512C-MAHN-T implements a dedicated SPI flash controller with dual-I/O capability: during Dual-Output Read (0x3B opcode), both SI (I/O0) and SO (I/O1) function as data outputs, doubling effective read bandwidth versus standard single-I/O reads. Its memory array is partitioned into 256-byte pages and uniform 4-kByte/32-kByte erase blocks, enabling efficient co-location of firmware code and runtime configuration data without cross-contamination on erase.
Device operation relies on command-driven state transitions-Write Enable (0x06) must precede any program/erase command; status register polling (0x05) confirms completion. Hardware protection is enforced via active-low WP pin controlling sector lock bits, while the 128-byte OTP register supports factory-programmed unique IDs (64 bytes) and user-programmable keys (64 bytes).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 512 Kbit (64 KByte) - sufficient for boot code + firmware image in microcontroller-based edge sensors. |
| Interface | SPI-compatible, Modes 0 & 3 - interoperable with standard MCU SPI peripherals without custom timing logic. |
| Max Clock Frequency | 104 MHz - enables 13 MB/s theoretical read throughput in dual-output mode (2 bits/cycle × 104 MHz). |
| Read Latency | 6 ns tV (clock-to-output) - minimizes wait states during instruction fetch from external flash. |
| Erase Granularity | 256-byte page / 4-kByte block / 32-kByte block - allows fine-grained updates to configuration sectors without erasing full firmware. |
| Power-Down Current | 200 nA ultra-deep power-down - extends battery life in always-on sensor nodes with infrequent wake-up intervals. |
| Data Retention | 20 years at +85 °C - ensures long-term reliability in automotive cabin modules and industrial controllers. |
Pinout & Package
AT25DF512C-MAHN-T is packaged in an 8-lead SOIC (150-mil) per JEDEC MS-012, with gull-wing leads and 1.27 mm pitch. Pin 1 is marked by a beveled corner or dot; package dimensions are 5.0 × 4.0 × 1.5 mm (L × W × H).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable: asserts SPI transaction start/end; device enters standby (not deep power-down) when deasserted. |
| SCK | Serial clock input | Drives all data latching (rising edge) and output timing (falling edge); supports up to 104 MHz for high-speed reads. |
| SI (I/O0) | Serial input / dual-output data line | Input for commands/addresses/data; becomes I/O0 output during Dual-Output Read (0x3B), delivering LSB-aligned bitstream. |
| SO (I/O1) | Serial output / dual-output data line | Primary output for standard reads; remains I/O1 output during Dual-Output Read, delivering MSB-aligned bitstream. |
| WP | Hardware write protect input | Active-low control of sector protection bits; internally pulled high-float or tie to VCC if unused. |
| HOLD | Communication pause input | Active-low halts ongoing SPI transfer without deselecting CS; preserves internal address counter state. |
| VCC | Power supply | Single 1.65–3.6 V rail powers core logic and I/O; no auxiliary voltage required for programming/erasing. |
| GND | Ground reference | System ground connection; critical for noise immunity in mixed-signal embedded applications. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Output Read (0x3B) | Delivers 2 bits per SCK cycle, doubling effective read bandwidth vs. standard 0x03 read-critical for fast boot loading. |
| Flexible Erase Architecture | Supports 256-byte page, 4-kByte, 32-kByte, and full-chip erase-enables atomic firmware patching without disrupting adjacent code/data. |
| 128-byte OTP Security Register | Factory-programmed 64-byte unique ID + 64-byte user-programmable space-supports secure device authentication and key binding. |
| Ultra-Deep Power-Down Mode | 200 nA typical current draw-extends shelf life and operational lifetime in battery-powered asset trackers and wearables. |
| Hardware Write Protection | WP pin directly controls sector lock bits in status register-prevents accidental overwrites during field firmware updates. |
Applications
| Firmware Boot Storage | IoT Edge Sensor Data Logging |
|---|---|
|
Use Scenario: Microcontroller boots from external flash by copying initial code to RAM before execution. IC Role / Device Role / Timing Role: Non-volatile storage for boot loader and application firmware; accessed via SPI during cold start. Use Value: 6 ns tV latency and 104 MHz clock support reduce boot time; 256-byte page erase allows safe firmware patching. |
Use Scenario: Environmental sensor node records temperature/humidity readings every 5 minutes to persistent storage. IC Role / Device Role / Timing Role: Data logger with wear-leveling handled by host MCU; stores timestamped samples in circular buffer. Use Value: 100,000 program/erase cycles and 20-year retention ensure 10+ years of reliable logging in unattended deployments. |
| Industrial HMI Configuration Storage | Smart Meter Firmware Update Buffer |
|
Use Scenario: Human-machine interface panel retains display settings, language packs, and calibration offsets across power cycles. IC Role / Device Role / Timing Role: Parameter storage with hardware write protection (WP pin) preventing corruption during ESD events. Use Value: 4-kByte uniform block erase isolates configuration sectors from firmware regions-no risk of accidental full-chip erase. |
Use Scenario: Electricity meter downloads encrypted firmware update over PLC or RF link, stores it in external flash before validation. IC Role / Device Role / Timing Role: Secure staging area for validated firmware images; OTP register stores signature verification keys. Use Value: 128-byte OTP register provides tamper-resistant key storage; dual-output read accelerates image checksum calculation. |
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, 8-pin DFN only, no OTP register, 1.7–1.95 V min supply. | Larger capacity but lacks hardware write protection pin and OTP security features. | Select when higher density and faster clock are prioritized over security and low-voltage operation down to 1.65 V. |
| Micron MT25QL064ABA | 64-Mbit density, 133 MHz, Quad SPI support, 1.7–2.0 V supply, no ultra-deep power-down mode (1 µA deep PD). | Quad I/O capability enables 4× read bandwidth but requires additional MCU pin resources and layout complexity. | Select when quad-read throughput is mandatory and system can accommodate wider voltage range and higher deep-PD current. |
Compared with W25Q40EW and MT25QL064ABA, AT25DF512C-MAHN-T delivers optimal balance of low-voltage operation (1.65 V), ultra-low power consumption (200 nA), integrated security (OTP), and hardware write protection-making it ideal for cost-sensitive, battery-operated, and safety-critical embedded systems where feature precision matters more than raw density.
Availability
AT25DF512C-MAHN-T is available at Aetrix Electronics and suitable for firmware boot storage, IoT sensor data logging, and industrial HMI configuration requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for AT25DF512C-MAHN-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 specializing in microcontrollers, analog, power, and memory solutions for automotive, industrial, and IoT markets.
The AT25DF512C-MAHN-T belongs to Renesas' serial Flash memory product line, designed specifically for code shadowing and embedded data storage in space- and power-constrained applications.
FAQ
What is the operating voltage range for the AT25DF512C-MAHN-T?
The AT25DF512C-MAHN-T operates across a single supply voltage range of 1.65 V to 3.6 V. At 1.65–1.7 V, operation is guaranteed from –10 °C to +85 °C; at 1.7–3.6 V, full –40 °C to +85 °C industrial temperature range is supported. No separate programming voltage is required-internal charge pumps handle all erase and program functions.
Does the AT25DF512C-MAHN-T support Quad SPI mode?
No, the AT25DF512C-MAHN-T does not support Quad SPI. It supports standard SPI Modes 0 and 3, plus Dual-Output Read (0x3B opcode) using SI and SO pins as simultaneous data outputs. Quad SPI functionality requires four I/O lines and is not implemented in the AT25DF512C-MAHN-T's command set or pin mapping.
How is hardware write protection implemented on the AT25DF512C-MAHN-T?
Hardware write protection on the AT25DF512C-MAHN-T is controlled by the active-low WP pin. When WP is asserted (low), it locks protected memory sectors defined in the status register's BP bits. The WP pin is internally pulled high, so it may be left floating if unused-but Renesas recommends tying it to VCC for noise immunity. Software write protection via status register is also available.
What is the purpose of the OTP security register in the AT25DF512C-MAHN-T?
The 128-byte OTP security register in the AT25DF512C-MAHN-T contains 64 bytes factory-programmed with a unique device identifier and 64 bytes user-programmable for keys, certificates, or calibration data. Once programmed, OTP bytes cannot be erased or rewritten-providing tamper-resistant storage for secure boot, device authentication, and cryptographic key binding in the AT25DF512C-MAHN-T.
Can the AT25DF512C-MAHN-T be used in automotive applications?
The AT25DF512C-MAHN-T is rated for –40 °C to +85 °C operation at 1.7–3.6 V, meeting extended temperature requirements for many automotive cabin and body-control modules. However, it is not AEC-Q100 qualified. For under-hood or safety-critical ADAS applications, Renesas offers AEC-Q100 qualified variants-consult the official AT25DF512C-MAHN-T datasheet for qualification status and recommended use cases.
AT25DF512C-MAHN-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-UFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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, 3.5ms
- 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-UDFN (2x3)
AT25DF512C-MAHN-T FAQ
1.How can I place an order for AT25DF512C-MAHN-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25DF512C-MAHN-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 AT25DF512C-MAHN-T reliable?
The price and inventory of AT25DF512C-MAHN-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25DF512C-MAHN-T is usually 5 days.
3.What payment methods are accepted for AT25DF512C-MAHN-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25DF512C-MAHN-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25DF512C-MAHN-T?
AT25DF512C-MAHN-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25DF512C-MAHN-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 AT25DF512C-MAHN-T?
For technical support, including AT25DF512C-MAHN-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25DF512C-MAHN-T requirements.
6.How does Aetrix verify that AT25DF512C-MAHN-T is sourced from the original manufacturer or authorized distributors?
All AT25DF512C-MAHN-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 AT25DF512C-MAHN-T meets industry standards.
7.What is the process for return or replacement of AT25DF512C-MAHN-T?
All AT25DF512C-MAHN-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25DF512C-MAHN-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 AT25DF512C-MAHN-T part is unused and in its original packaging.
Return procedure for AT25DF512C-MAHN-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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