My Inquiry
My Account
Renesas AT25DN512C-SSHFGP-B
.jpg)
- Part No.:
- AT25DN512C-SSHFGP-B
- Manufacturer:
- Renesas
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25DN512C-SSHFGP-B.pdf
- Description:
- IC FLASH 512KBIT SPI 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,219
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT25DN512C-SSHFGP-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 range (−40°C to +85°C). It serves as nonvolatile code/data storage in microcontroller boot loaders, firmware update buffers, and IoT sensor node configuration storage.
For engineers reviewing the AT25DN512C-SSHFGP-B datasheet, AT25DN512C-SSHFGP-B pinout, AT25DN512C-SSHFGP-B application, or AT25DN512C-SSHFGP-B equivalent, key selection considerations include its 256-byte page erase granularity, 128-byte OTP security register (64B factory UID + 64B user-programmable), hardware write protection via WP pin, ultra-deep power-down current (350nA typical), and support for SPI Modes 0/3.
Technical Context
The AT25DN512C-SSHFGP-B implements a flexible erase architecture with four granularities-256-byte page, 4-Kbyte block, 32-Kbyte block, and full chip-enabling efficient co-location of code modules and data segments without memory waste. Its dual-output read mode uses both SI (I/O0) and SO (I/O1) pins to output two bits per SCK falling edge, doubling throughput versus standard SPI read.
It integrates a dedicated 128-byte OTP security register with factory-programmed 64-byte unique identifier and user-programmable 64-byte space for ESN or cryptographic keys. Hardware write protection is enforced via active-low WP pin, while HOLD pin enables communication pause without deselection or reset-critical for real-time system responsiveness.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 512 Kbit (64 Kbyte) organized as 256 pages × 256 bytes; supports byte-level addressing up to 00FFFFh. |
| Supply Voltage | 2.3V–3.6V single supply; eliminates need for charge pumps or auxiliary rails during program/erase. |
| Max Clock Frequency | 104 MHz for Read/Program/Erase commands; enables <10 ns effective read latency in dual-output mode. |
| Read Latency | 6 ns clock-to-output (tV); ensures deterministic timing for time-critical firmware fetches. |
| Erase Granularity | 256-byte page, 4-Kbyte block, 32-Kbyte block, and full chip; minimizes wasted space in mixed code/data layouts. |
| Power Consumption | 350 nA ultra-deep power-down (typ), 7.5 µA deep power-down (typ), 25 µA standby (typ), 6 mA active read (typ). |
| Endurance & Retention | 100,000 program/erase cycles; 20-year data retention at +85°C-validated for long-life embedded deployments. |
Pinout & Package
AT25DN512C-SSHFGP-B is packaged in an 8-lead SOIC (150-mil) with standard JEDEC-compliant footprint and lead finish. Pin functions are electrically validated per Adesto DS-25DN512C–037H–02/2022.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select input | Active-low enable; rising edge ends operations; required to initiate all commands including read, program, and erase. |
| SCK | Serial clock input | Controls data transfer timing; data latched on rising edge (SI), output on falling edge (SO/I/O0/I/O1). |
| SI (I/O0) | Serial input / Dual-output bit 0 | Input for commands/addresses/data; becomes output (I/O0) during Dual-Output Read to deliver LSB-aligned bits. |
| SO (I/O1) | Serial output / Dual-output bit 1 | Primary output for standard read; remains output (I/O1) during Dual-Output Read to deliver MSB-aligned bits. |
| WP | Write protect input | Active-low hardware lock for protected sectors; internally pulled high; externally tied to VCC if unused. |
| HOLD | Communication hold input | Active-low pause signal; suspends SPI transfer without deselecting device or resetting internal state. |
| VCC | Power supply | 2.3V–3.6V main supply; powers all logic, memory array, and I/O buffers. |
| GND | Ground reference | System ground return path; must be low-impedance for stable read/write margins and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-Output Read Mode | Uses SI and SO simultaneously to output two bits per SCK falling edge-doubling effective read bandwidth over standard SPI. |
| Flexible Erase Architecture | Four erase granularities (256B/4KB/32KB/full chip) reduce memory fragmentation and eliminate need for external EEPROM in mixed-code-and-data systems. |
| 128-Byte OTP Security Register | 64-byte factory-unique ID + 64-byte user-programmable space-enables secure device serialization and key binding without external crypto ICs. |
| Hardware Write Protection | WP pin provides physical, glitch-immune sector locking-prevents accidental firmware corruption during field updates or brown-out conditions. |
| Ultra-Low Power States | 350 nA ultra-deep power-down current enables multi-year battery life in always-on sensor nodes and wearables. |
Applications
| Industrial PLC Firmware Storage | Medical Device Configuration Memory |
|---|---|
Use Scenario: Storing boot firmware, safety-critical control algorithms, and calibration tables in programmable logic controllers operating continuously in harsh environments. IC Role / Device Role / Timing Role: Nonvolatile code shadowing and runtime parameter storage; executes deterministic read sequences under 104MHz SPI clock with 6ns tV. Use Value: 20-year data retention and 100K endurance ensure firmware integrity across 15+ year product lifecycles without field replacement. |
Use Scenario: Holding device-specific calibration coefficients, patient history metadata, and regulatory compliance flags in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, low-power configuration store; leverages 128-byte OTP register for tamper-resistant ESN and encrypted key storage. Use Value: Hardware WP pin prevents unauthorized reprogramming during clinical use; ultra-deep power-down (350nA) extends battery life in battery-backed units. |
| IoT Edge Node Update Buffer | Automotive Infotainment Bootloader Storage |
Use Scenario: Caching over-the-air (OTA) firmware patches in constrained wireless sensor nodes before atomic flash update. IC Role / Device Role / Timing Role: High-speed temporary storage with dual-output read; supports rapid patch verification prior to MCU execution. Use Value: 104MHz interface and 256-byte page erase allow sub-100ms patch validation-reducing airtime and energy per OTA cycle. |
Use Scenario: Storing primary bootloader, secure boot keys, and display asset headers in automotive head units requiring ASIL-B alignment. IC Role / Device Role / Timing Role: Trusted nonvolatile memory for boot sequence; operates across −40°C to +85°C with guaranteed tV ≤ 6ns at max frequency. Use Value: Industrial temp grade and 2.3V min supply ensure reliable startup during cold cranking or thermal transients. |
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 (8× larger), 133MHz max clock, no dual-output read; supports QPI/DTR modes not present in AT25DN512C-SSHFGP-B. | Better suited for high-throughput code execution; lacks 256-byte page erase and OTP security register. | Select W25Q40EW only when higher density and quad-I/O speed outweigh need for fine-grain erase and hardware security features. |
| Macronix MX25L4005 | 4-Mbit density, 75MHz max clock, standard SPI only (no dual-output), 4-Kbyte uniform erase only-no 256-byte page or 32-Kbyte block options. | Lower cost for simple code storage; no OTP register or ultra-deep power-down (min 1µA standby). | Choose MX25L4005 for cost-sensitive, low-complexity boot memory where security, low power, and flexible erase are noncritical. |
Compared with W25Q40EW and MX25L4005, AT25DN512C-SSHFGP-B uniquely balances 256-byte page erase efficiency, dual-output throughput acceleration, 128-byte OTP security, and 350nA ultra-deep power-down-making it optimal for resource-constrained, secure, and battery-sensitive embedded systems.
Availability
AT25DN512C-SSHFGP-B is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device configuration memory, IoT edge node update buffering, automotive infotainment bootloader storage, and secure sensor node identity management requiring stable component supply across extended product lifecycles.
Supply support for AT25DN512C-SSHFGP-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 Electronics) specialized in low-power, nonvolatile memory and IoT connectivity solutions for resource-constrained embedded systems.
The AT25DN512C-SSHFGP-B belongs to Adesto's DN-series SPI Flash family, designed specifically for applications demanding fine-grain erase flexibility, ultra-low power states, and integrated security-targeting medical, industrial, and battery-powered IoT endpoints.
FAQ
What is the maximum clock frequency supported by AT25DN512C-SSHFGP-B for read operations?
The AT25DN512C-SSHFGP-B supports up to 104 MHz for Read Array (0Bh opcode) and Dual-Output Read (3Bh opcode) commands. At this rate, it achieves a clock-to-output delay (tV) of 6 ns, enabling high-speed firmware shadowing and real-time data access. The 03h opcode is limited to 33 MHz for legacy compatibility but is not used in AT25DN512C-SSHFGP-B's high-performance configurations.
Does AT25DN512C-SSHFGP-B support hardware write protection, and how is it implemented?
Yes, AT25DN512C-SSHFGP-B implements hardware write protection via the active-low WP pin. When asserted (low), it locks protected memory sectors against program and erase commands-even if the Write Enable Latch (WEL) is set. The WP pin is internally pulled high, so it may float if unused, though Adesto recommends tying it to VCC for noise immunity. This feature prevents accidental corruption during power transients or software faults.
How does the dual-output read mode function in AT25DN512C-SSHFGP-B, and what benefit does it provide?
In AT25DN512C-SSHFGP-B, dual-output read uses both SI (as I/O0) and SO (as I/O1) pins to output two bits per SCK falling edge-effectively doubling read throughput versus standard SPI. It requires the 3Bh opcode, three address bytes, and one dummy byte. This mode reduces read latency for firmware images and large configuration blobs, directly improving system boot time and OTA patch verification speed without requiring quad-I/O hardware changes.
What is the structure and purpose of the OTP security register in AT25DN512C-SSHFGP-B?
The AT25DN512C-SSHFGP-B includes a 128-byte OTP (One-Time Programmable) security register: 64 bytes factory-programmed with a unique device identifier (UID), and 64 bytes user-programmable for ESN, cryptographic keys, or calibration tokens. Once programmed, OTP bits cannot be altered-providing immutable device identity and secure key binding. Programming uses the 9Bh opcode and requires Write Enable activation, ensuring controlled access.
What erase granularities are available in AT25DN512C-SSHFGP-B, and why does this matter for embedded design?
AT25DN512C-SSHFGP-B offers four erase granularities: 256-byte page, 4-Kbyte block, 32-Kbyte block, and full chip. This flexibility allows precise allocation of code modules and data segments into independent erase regions-eliminating wasted space common with fixed-sector Flash. For example, a 2-Kbyte firmware update can erase just one 4-Kbyte block instead of a 64-Kbyte sector, preserving adjacent configuration data and extending memory lifetime.
AT25DN512C-SSHFGP-B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
AT25DN512C-SSHFGP-B FAQ
1.How can I place an order for AT25DN512C-SSHFGP-B through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25DN512C-SSHFGP-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-SSHFGP-B reliable?
The price and inventory of AT25DN512C-SSHFGP-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-SSHFGP-B is usually 5 days.
3.What payment methods are accepted for AT25DN512C-SSHFGP-B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25DN512C-SSHFGP-B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25DN512C-SSHFGP-B?
AT25DN512C-SSHFGP-B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25DN512C-SSHFGP-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-SSHFGP-B?
For technical support, including AT25DN512C-SSHFGP-B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25DN512C-SSHFGP-B requirements.
6.How does Aetrix verify that AT25DN512C-SSHFGP-B is sourced from the original manufacturer or authorized distributors?
All AT25DN512C-SSHFGP-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-SSHFGP-B meets industry standards.
7.What is the process for return or replacement of AT25DN512C-SSHFGP-B?
All AT25DN512C-SSHFGP-B units undergo pre-shipment inspection (PSI). If there is an issue with AT25DN512C-SSHFGP-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-SSHFGP-B part is unused and in its original packaging.
Return procedure for AT25DN512C-SSHFGP-B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT25DN512C-SSHFGP-B 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…
