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Microchip Technology AT25010B-SSHL-T
- Part No.:
- AT25010B-SSHL-T
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT25010B-SSHL-T.pdf
- Description:
- IC EEPROM 1KBIT SPI 20MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:12,287
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Product details
Overview
AT25010B-SSHL-T from Microchip Technology is a 1 Kbit (128 × 8) SPI Serial EEPROM IC designed for nonvolatile data storage in microcontroller-based systems. It operates from 1.8V to 5.5V, supports 20 MHz clock rate at 5V, features hardware/software write protection via WP pin and STATUS register, and delivers 1,000,000 write cycles with 100-year data retention - deployed in industrial sensor calibration and embedded configuration storage.
For engineers reviewing the AT25010B-SSHL-T datasheet, AT25010B-SSHL-T pinout, AT25010B-SSHL-T application, or AT25010B-SSHL-T equivalent, key selection criteria include low-voltage SPI compatibility (1.8V–5.5V), 8-byte page write capability, block-level write protection (1/4, 1/2, or full array), HOLD/CS-controlled suspend functionality, and SOIC-8 packaging for legacy board compatibility.
Technical Context
The AT25010B-SSHL-T implements a synchronous SPI slave interface supporting Modes 0 and 3, with data latched on SCK rising edge and output on falling edge. Its internal architecture includes a high-voltage generation circuit for EEPROM programming, a STATUS register with BP1/BP0 bits for nonvolatile block protection, and a power-on reset (POR) circuit ensuring stable initialization at VCC ≥ 1.5V.
It integrates hardware write protection via the WP pin (active-low inhibition of all writes) and software control through WRSR/RDSR commands. The HOLD pin enables pause/resume of serial communication without resetting the instruction sequence, while maintaining high-impedance SO during hold - critical for multi-device SPI bus arbitration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1,024 bits (128 words × 8 bits), sufficient for firmware version stamps or small device configuration tables |
| Supply Voltage Range | 1.8V to 5.5V - enables direct interfacing with 1.8V, 3.3V, and 5V microcontrollers without level shifters |
| Max Clock Frequency | 20 MHz at VCC = 4.5–5.5V - supports high-speed read/write in time-critical bootloading sequences |
| Write Cycle Time | ≤5 ms maximum - ensures predictable timeout handling in real-time firmware polling routines |
| Endurance & Retention | 1,000,000 write cycles / 100 years data retention at 55°C - validated for long-life industrial deployments |
| Operating Temperature | -40°C to +85°C industrial grade - qualified for use in automotive body control modules and factory automation nodes |
| ESD Protection | >4,000V HBM - reduces risk of field failure during handling or system integration |
Pinout & Package
AT25010B-SSHL-T is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with standard 150-mil body width and 1.27 mm pitch - compatible with legacy PCB footprints and automated assembly processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable; must be driven low before any SPI transaction; requires pull-up resistor (≤10 kΩ) tied to VCC for robust power-up behavior |
| SO | Serial Data Output | Tri-state output; drives data on falling edge of SCK; enters high-impedance state when CS is high or HOLD is asserted |
| WP | Write-Protect | Hardware lock: pulls low to inhibit all write operations (including STATUS register updates); no effect once internal write cycle begins |
| GND | Ground Reference | System ground return path for VCC supply and signal integrity; must be low-impedance connection to minimize noise coupling |
| SI | Serial Data Input | Receives opcodes, addresses, and data on rising edge of SCK; MSb-first protocol; ignored during HOLD or CS high |
| SCK | Serial Clock Input | Asynchronous master-generated clock; defines timing for SI sampling and SO output; idle polarity depends on SPI mode (0 or 3) |
| HOLD | Suspend Control | Pauses ongoing SPI transfer without resetting state; requires SCK low to assert/deassert; SO goes high-Z, SI/SCK ignored |
| VCC | Power Supply | 1.8V–5.5V input; must ramp monotonically at ≤0.1 V/µs; POR threshold at 1.5V ensures reliable reset before command acceptance |
Key Features
| Feature | Design Value |
|---|---|
| 8-byte page write mode | Enables burst programming of up to 8 bytes per WRITE command, reducing total transaction count vs. byte-wise writes |
| Block write protection (BP1/BP0) | Nonvolatile STATUS register bits allow permanent 25%, 50%, or 100% array lock - prevents accidental overwrite of critical calibration data |
| Hardware + software write protection | Combines physical WP pin control with WREN/WRDI instructions and STATUS register locking - layered security for firmware update paths |
| HOLD pin suspend function | Allows external controller to pause SPI communication mid-sequence (e.g., during interrupt servicing) without losing context or requiring re-synchronization |
| Green RoHS-compliant packaging | Lead-free, halide-free SOIC-8 meets IPC/JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) for standard reflow processing |
Applications
| Industrial Sensor Calibration | Medical Device Configuration Storage |
|---|---|
|
Use Scenario: Storing temperature-compensation coefficients and sensor offset values in handheld diagnostic equipment. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed during power-up initialization and periodic recalibration routines. Use Value: Ensures consistent measurement accuracy across 10+ year product lifecycle using 100-year data retention and 1M-cycle endurance. |
Use Scenario: Holding user-selectable alarm thresholds and device ID in battery-powered infusion pumps. IC Role / Device Role / Timing Role: Low-power configuration memory accessed infrequently but requiring guaranteed persistence during deep sleep modes. Use Value: 0.5 µA standby current at 1.8V enables multi-year operation on coin-cell batteries without data loss. |
| Automotive Body Control Module | Consumer IoT Gateway Bootloader Settings |
|
Use Scenario: Saving seat position presets and mirror angle configurations in vehicle convenience systems. IC Role / Device Role / Timing Role: SPI-connected configuration store interfaced directly with 3.3V MCU, surviving -40°C to +85°C ambient. Use Value: Industrial temperature rating and 1.8V–5.5V operation eliminate need for voltage translators in mixed-supply ECUs. |
Use Scenario: Storing Wi-Fi credentials and firmware rollback pointers in smart home hubs with OTA update capability. IC Role / Device Role / Timing Role: Secure boot parameter storage protected by WP pin and STATUS register BP bits during firmware flashing. Use Value: Hardware write protection prevents corruption during power-loss events during OTA updates, ensuring safe recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SPI EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95010-WMN6TP | 1 Kbit, same SOIC-8 package, but max clock 10 MHz at 1.8V and no HOLD pin | Lacks suspend functionality; suitable only where bus arbitration is handled externally | Choose when HOLD is unused and cost is primary driver; verify timing margins at 1.8V |
| 25AA010A-I/P | 1 Kbit, PDIP-8 package, supports 10 MHz at 1.8V, includes software write protection only (no WP pin) | Through-hole mounting required; no hardware-level write lock independent of firmware state | Select for prototyping or legacy through-hole designs; avoid in safety-critical systems needing hardware-enforced protection |
Compared with M95010-WMN6TP and 25AA010A-I/P, AT25010B-SSHL-T uniquely combines 20 MHz speed at 5V, integrated HOLD functionality for deterministic bus control, and dual hardware/software write protection - making it optimal for real-time embedded systems requiring both performance and robust data integrity.
Availability
AT25010B-SSHL-T is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration storage, and automotive body control modules requiring stable component supply across extended production lifecycles.
Supply support for AT25010B-SSHL-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
Microchip Technology Inc. is a leading provider of microcontrollers, analog devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The AT25010B-SSHL-T belongs to Microchip's AT25xxx family of SPI EEPROMs, engineered specifically for reliable, low-power nonvolatile storage in space-constrained industrial and automotive applications where voltage flexibility and data integrity are critical.
FAQ
What is the maximum clock frequency supported by AT25010B-SSHL-T at 3.3V operation?
At VCC = 2.5V to 5.5V, the AT25010B-SSHL-T supports up to 10 MHz SCK frequency. This is confirmed in Table 4-3 of the official datasheet (DS20006251A), where fSCK maximum is specified as 10 MHz for that voltage range. Operation above this limit may result in timing violations and data corruption.
Does AT25010B-SSHL-T support SPI Mode 1 or Mode 2?
No, AT25010B-SSHL-T explicitly supports only SPI Modes 0 and 3, as stated in the Features section and Section 5.1 of the datasheet. It latches data on the rising edge and outputs on the falling edge of SCK - incompatible with Mode 1 (sample on falling, shift on rising) or Mode 2 (inactive SCK high, sample on falling).
How does the HOLD pin behave during an active write cycle in AT25010B-SSHL-T?
The HOLD pin has no effect on an ongoing internal write cycle in AT25010B-SSHL-T. As documented in Section 5.3, Hold mode suspends serial communication only - the self-timed 5 ms write operation continues uninterrupted. SO enters high-Z, but the EEPROM cell programming completes normally.
What is the factory default state of the STATUS register in AT25010B-SSHL-T?
Per Section 4.6.6 and Table 6-3, AT25010B-SSHL-T ships with BP1/BP0 = 00 (no array protection), WEL = 0 (write disabled), and RDY/BSY = 0 (ready). The EEPROM array contains all 0xFF data. These defaults ensure safe out-of-box operation without unintended writes or protection locks.
Can AT25010B-SSHL-T be used with a 1.8V-only microcontroller without level shifting?
Yes, AT25010B-SSHL-T is fully 1.8V-compatible: its VCC range is 1.8V–5.5V, input thresholds scale with VCC (VIH = 0.7×VCC, VIL = 0.3×VCC), and DC/AC characteristics are characterized down to 1.8V. No level shifter is needed when interfacing with 1.8V MCUs operating within datasheet timing limits.
AT25010B-SSHL-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 20 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
AT25010B-SSHL-T FAQ
1.How can I place an order for AT25010B-SSHL-T through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25010B-SSHL-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 AT25010B-SSHL-T reliable?
The price and inventory of AT25010B-SSHL-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25010B-SSHL-T is usually 5 days.
3.What payment methods are accepted for AT25010B-SSHL-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25010B-SSHL-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25010B-SSHL-T?
AT25010B-SSHL-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25010B-SSHL-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 AT25010B-SSHL-T?
For technical support, including AT25010B-SSHL-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25010B-SSHL-T requirements.
6.How does Aetrix verify that AT25010B-SSHL-T is sourced from the original manufacturer or authorized distributors?
All AT25010B-SSHL-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 AT25010B-SSHL-T meets industry standards.
7.What is the process for return or replacement of AT25010B-SSHL-T?
All AT25010B-SSHL-T units undergo pre-shipment inspection (PSI). If there is an issue with AT25010B-SSHL-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 AT25010B-SSHL-T part is unused and in its original packaging.
Return procedure for AT25010B-SSHL-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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