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Microchip Technology 25LC010A-E/SN16KVAO
- Part No.:
- 25LC010A-E/SN16KVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
25LC010A-E/SN16KVAO.pdf
- Description:
- IC EEPROM 1KBIT SPI 10MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,288
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Product details
Overview
25LC010A-E/SN16KVAO from Microchip Technology Inc. is a 1 Kbit (128 × 8) SPI Serial EEPROM with automotive-grade temperature support (−40°C to +125°C), 16-byte page write capability, and hardware write protection via WP pin. It operates from 2.5V to 5.5V, supports up to 10 MHz clock frequency, and delivers 5 mA read/write current at 5.5V - ideal for firmware storage and configuration retention in engine control units and ADAS sensors.
For engineers reviewing the 25LC010A-E/SN16KVAO datasheet, 25LC010A-E/SN16KVAO pinout, 25LC010A-E/SN16KVAO application, or 25LC010A-E/SN16KVAO equivalent, key selection criteria include automotive temperature qualification, SPI interface timing compliance at 125°C, WP/HOLD pin functionality, and 1 M endurance cycle rating under VCC ≥ 2.5V conditions.
Technical Context
The 25LC010A-E/SN16KVAO implements a standard SPI Mode 0,0 or Mode 1,1 interface with separate SI/SO lines, CS-controlled selection, and HOLD-enabled transaction suspension. Its internal architecture includes an 8-bit instruction register, page latches, and high-voltage generator for EEPROM programming.
Write operations require explicit WREN instruction followed by CS high transition to initiate self-timed internal write cycles (≤5 ms). Block protection is configurable via BP0/BP1 bits in the STATUS register to protect 0%, 25%, 50%, or 100% of the 128-byte array - independent of WP pin state when WEL = 1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit array), sufficient for bootloader flags, calibration coefficients, or device ID storage |
| Interface | SPI-compatible serial bus (Mode 0,0 / Mode 1,1), no I²C or UART compatibility |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5V; reduces to 5 MHz at 2.5V ≤ VCC < 4.5V - constrains maximum data throughput in low-VCC automotive domains |
| Write Endurance | 1,000,000 erase/write cycles at 25°C, 5.5V - validated for long-life logging in telematics modules |
| Data Retention | > 200 years at 25°C - ensures configuration integrity across vehicle lifetime without refresh |
| Temperature Range | −40°C to +125°C (Automotive E grade), qualified per AEC-Q100 stress test requirements |
| Supply Voltage | 2.5V to 5.5V - compatible with 3.3V and 5V microcontroller I/O domains without level shifting |
Pinout & Package
25LC010A-E/SN16KVAO is packaged in an 8-lead SOIC (SN) with 150-mil body width and standard JEDEC MS-012AC footprint. Pin 1 is marked by laser dot; package is Pb-free and RoHS compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 1) | Chip Select Input | Active-low enable: must be low for all SPI transactions; rising edge initiates internal write cycle after valid write sequence |
| SO (Pin 2) | Serial Data Output | Tri-state open-drain output; data shifted out on SCK falling edge during READ; high-Z when CS high or HOLD low |
| WP (Pin 3) | Write-Protect Pin | Hardware lock: drives WEL latch low when pulled to VSS, disabling all writes regardless of STATUS register settings |
| VSS (Pin 4) | Ground Reference | Primary return path for all I/O and core logic; must be low-impedance connection to system GND plane |
| SI (Pin 5) | Serial Data Input | CMOS input: receives instructions, addresses, and data on SCK rising edge; sampled only when CS = low |
| SCK (Pin 6) | Serial Clock Input | Asynchronous master clock: defines timing for SI sampling and SO updates; max 10 MHz at VCC ≥ 4.5V |
| HOLD (Pin 7) | Hold Input | Pauses ongoing SPI transfer without resetting state machine; requires SCK = low before assertion to avoid metastability |
| VCC (Pin 8) | Supply Voltage | Power input: 2.5–5.5V range supports direct connection to MCU VDD rails; bypass capacitor required per layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Page Write Mode | Up to 16 bytes written atomically within same 16-byte physical page - prevents partial-page corruption during power loss |
| Block Write Protection | Four selectable protection levels (none/25%/50%/100%) via nonvolatile BP0/BP1 bits - enables secure boot partitioning |
| Built-in Power-On Write Protection | WEL latch resets at power-up and after every WRITE/WRSR command - eliminates accidental writes during brown-out |
| HOLD Functionality | Halts SPI communication mid-sequence while preserving address pointer and instruction state - enables interrupt servicing in real-time systems |
| ESD Robustness | > 4 kV HBM rating on all pins - meets automotive board-level ESD immunity requirements without external clamps |
Applications
| Engine Control Unit (ECU) | Advanced Driver Assistance Systems (ADAS) |
|---|---|
Use Scenario: Storing trim values for fuel injection timing and knock sensor calibration across vehicle lifetime. IC Role / Device Role / Timing Role: Nonvolatile configuration memory interfaced directly to PIC® MCU SPI port with HOLD support for deterministic interrupt latency. Use Value: 1 M endurance and >200-year data retention ensure calibration persistence through 15+ year vehicle service life without field updates. |
Use Scenario: Retaining camera lens focus offsets and radar module compensation tables in parking assist systems. IC Role / Device Role / Timing Role: SPI EEPROM providing fail-safe parameter storage with WP pin hardwired to chassis ground for permanent write lock during operation. Use Value: Automotive-grade −40°C to +125°C operation guarantees reliability in under-hood camera housings exposed to thermal cycling. |
| Telematics Control Unit (TCU) | Body Control Module (BCM) |
Use Scenario: Logging last-known GPS coordinates and cellular network registration status during battery disconnect events. IC Role / Device Role / Timing Role: Low-power serial memory with 5 µA standby current and fast 5 ms write cycle - captures critical state before power collapse. Use Value: Page write mode enables atomic storage of multi-byte location vectors without risk of partial writes corrupting position data. |
Use Scenario: Holding door lock actuator calibration profiles and lighting dimming curves across ignition cycles. IC Role / Device Role / Timing Role: Configuration EEPROM accessed during BCM boot sequence via SPI; protected via BP1/BP0 bits to prevent firmware overwrite. Use Value: Hardware WP pin + software block protection provides dual-layer security against unauthorized reprogramming in service mode. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25010B-MAHM-T | 1 Kbit SPI EEPROM, 2.5–5.5V, −40°C to +125°C, but uses different instruction set (e.g., WRSR byte differs) and lacks HOLD pin | No HOLD functionality limits use in real-time interrupt-driven systems requiring paused SPI transfers | Select only if HOLD is unused and AT25010B's faster 20 ms max write time outweighs instruction compatibility effort |
| M95010-RMN6TP | 1 Kbit SPI EEPROM, 2.5–5.5V, −40°C to +125°C, includes HOLD pin, but rated for 300k endurance cycles vs. 1M for 25LC010A-E/SN16KVAO | Lower endurance restricts use in high-write-frequency logging applications like CAN bus error counters | Prefer for cost-sensitive designs where write cycles remain below 300k over product lifetime |
Compared with AT25010B-MAHM-T and M95010-RMN6TP, the 25LC010A-E/SN16KVAO uniquely combines automotive temperature rating, HOLD pin support, 1 M endurance, and Microchip's documented Total Endurance™ modeling - making it optimal for safety-critical configuration storage where deterministic behavior and long-term reliability are mandatory.
Availability
25LC010A-E/SN16KVAO is available at Aetrix Electronics and suitable for engine control units, ADAS sensors, telematics gateways, and body control modules requiring stable component supply with automotive-grade qualification and long-lifecycle support.
Supply support for 25LC010A-E/SN16KVAO 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 U.S.-based semiconductor manufacturer specializing in microcontrollers, analog devices, and memory products for industrial, automotive, and consumer markets.
The 25LC010A-E/SN16KVAO belongs to Microchip's 25XX010A family of SPI Serial EEPROMs, designed specifically for reliable nonvolatile data storage in resource-constrained embedded systems operating across extended temperature ranges.
FAQ
What is the maximum clock frequency supported by the 25LC010A-E/SN16KVAO at 3.3V supply?
The 25LC010A-E/SN16KVAO supports up to 5 MHz clock frequency when VCC is between 2.5V and 4.5V - which includes 3.3V operation. This is specified in Table 1-2 (AC Characteristics) of the DS21832H datasheet. Exceeding 5 MHz at 3.3V violates timing margins and may cause read/write failures. The 10 MHz rating applies only at VCC ≥ 4.5V.
Does the 25LC010A-E/SN16KVAO support I²C or UART interfaces?
No, the 25LC010A-E/SN16KVAO exclusively supports SPI interface (Mode 0,0 and Mode 1,1) with dedicated SI, SO, SCK, and CS lines. It does not implement I²C addressing, START/STOP conditions, or UART framing. Any I²C or UART requirement would necessitate a different part number such as Microchip's 24AA010 series.
How does the HOLD pin function during an active SPI transaction on the 25LC010A-E/SN16KVAO?
The HOLD pin on the 25LC010A-E/SN16KVAO suspends SPI communication mid-sequence when pulled low while SCK is low. During HOLD, SI, SCK, and SO enter high-impedance states and all inputs except CS are ignored. The internal address pointer and instruction state are preserved. Resuming requires bringing HOLD high while SCK remains low - verified in Figure 1-1 and Section 2.8 of DS21832H.
What happens if a page write crosses a 16-byte boundary on the 25LC010A-E/SN16KVAO?
If a page write command attempts to cross a 16-byte physical page boundary (e.g., writing bytes starting at address 0x0F), the 25LC010A-E/SN16KVAO wraps the data back to the start of the current page (0x00), overwriting previously written bytes in that page. This behavior is explicitly documented in Section 2.3 and Note on DS21832H-page 6 - software must enforce page alignment to prevent unintended data loss.
Is the 25LC010A-E/SN16KVAO pin-compatible with the 25AA010A series?
Yes, the 25LC010A-E/SN16KVAO shares identical pinout, package dimensions, and SPI protocol with the 25AA010A series (e.g., 25AA010A-I/SN). However, voltage ranges differ: 25AA010A operates from 1.8V–5.5V (Industrial I grade), while 25LC010A-E/SN16KVAO requires 2.5V–5.5V and is qualified for Automotive E grade (−40°C to +125°C). Electrical timing parameters also vary slightly across VCC ranges.
25LC010A-E/SN16KVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 10 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
25LC010A-E/SN16KVAO FAQ
1.How can I place an order for 25LC010A-E/SN16KVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC010A-E/SN16KVAO 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 25LC010A-E/SN16KVAO reliable?
The price and inventory of 25LC010A-E/SN16KVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 25LC010A-E/SN16KVAO is usually 5 days.
3.What payment methods are accepted for 25LC010A-E/SN16KVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC010A-E/SN16KVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC010A-E/SN16KVAO?
25LC010A-E/SN16KVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC010A-E/SN16KVAO 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 25LC010A-E/SN16KVAO?
For technical support, including 25LC010A-E/SN16KVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC010A-E/SN16KVAO requirements.
6.How does Aetrix verify that 25LC010A-E/SN16KVAO is sourced from the original manufacturer or authorized distributors?
All 25LC010A-E/SN16KVAO 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 25LC010A-E/SN16KVAO meets industry standards.
7.What is the process for return or replacement of 25LC010A-E/SN16KVAO?
All 25LC010A-E/SN16KVAO units undergo pre-shipment inspection (PSI). If there is an issue with 25LC010A-E/SN16KVAO, 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 25LC010A-E/SN16KVAO part is unused and in its original packaging.
Return procedure for 25LC010A-E/SN16KVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
25LC010A-E/SN16KVAO Tags
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