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Microchip Technology 25AA010A/S16K
- Part No.:
- 25AA010A/S16K
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- Die
- Datasheet:
-
25AA010A/S16K.pdf
- Description:
- IC EEPROM 1KBIT SPI 10MHZ DIE
- Quantity:
- Payment:
- Shipping:
Inventory:2,871
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Product details
Overview
25AA010A/S16K from Microchip Technology Inc. is a 1 Kbit (128 × 8) SPI bus serial EEPROM with 1.8–5.5 V supply range, 16-byte page write capability, and industrial temperature support (−40°C to +85°C). It features hardware write protection (WP pin), HOLD functionality for interrupt-safe pausing, and built-in power-on data protection - deployed in embedded microcontroller systems for parameter storage, calibration data retention, and firmware configuration.
For engineers reviewing the 25AA010A/S16K datasheet, 25AA010A/S16K pinout, 25AA010A/S16K application, or 25AA010A/S16K equivalent, key selection criteria include SPI interface compatibility, low-voltage operation down to 1.8 V, page-write timing (≤5 ms), block protection granularity (none/¼/½/all), and industrial-grade reliability (1M write cycles, >200-year data retention).
Technical Context
The 25AA010A/S16K implements a standard SPI Mode 0,0/Master-Slave interface with separate SI (data in) and SO (data out) lines, requiring CS, SCK, WP, HOLD, and VCC/VSS. Its internal architecture includes an 8-bit instruction register, page latches, and HV generator for EEPROM programming - all controlled via RDSR/WRSR status register access.
Write operations require explicit WREN instruction followed by CS high-to-low transition to initiate internal TWC (≤5 ms); read operations support sequential addressing with automatic address rollover at 0x7F. Block protection is configured nonvolatily via BP0/BP1 bits in the STATUS register, enabling hardware-locked segments without software overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1 Kbit (128 × 8-bit array) - fits small configuration tables, device IDs, or sensor calibration coefficients in space-constrained designs. |
| Interface | SPI-compatible serial bus (Mode 0,0) - interoperable with PIC® and other MCU SPI peripherals without protocol translation. |
| Page Size | 16 bytes - enables efficient burst writes within single physical pages; crossing page boundaries causes wraparound, requiring software boundary checks. |
| Write Cycle Time | ≤5 ms max. - deterministic erase/write latency allows predictable system-level timing for nonvolatile updates. |
| VCC Range | 1.8 V to 5.5 V - supports direct interfacing with 1.8 V logic, 3.3 V I/O, and 5 V legacy systems without level shifters. |
| Endurance & Retention | 1,000,000 erase/write cycles; >200 years data retention - validated for long-life industrial deployments with frequent field updates. |
| ESD Protection | ≥4 kV HBM - robust against handling and board-level ESD events in manufacturing and field service environments. |
Pinout & Package
25AA010A/S16K is packaged in an 8-lead SOIC (Small Outline Integrated Circuit) with standard JEDEC MS-012AC footprint. Pin mapping follows industry-standard SPI layout for drop-in compatibility across Microchip's 25XX010A family.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 1) | Chip Select Input | Active-low enable signal; must be held low during SPI transactions and driven high after final data bit to trigger internal write cycle. |
| SO (Pin 2) | Serial Data Output | Tri-state open-drain output; delivers read data on falling edge of SCK; enters high-Z when CS is high or HOLD is asserted. |
| WP (Pin 3) | Write-Protect Pin | Hardware lock: low = full array and STATUS register write inhibition regardless of WEL state; overrides software protection. |
| VSS (Pin 4) | Ground Reference | Primary return path for all digital and internal charge-pump circuits; requires low-impedance connection to system GND plane. |
| SI (Pin 5) | Serial Data Input | Latches instructions, addresses, and write data on rising edge of SCK; accepts MSb-first SPI framing per Microchip's instruction set. |
| SCK (Pin 6) | Serial Clock Input | Synchronizes all SPI transfers; max 10 MHz at VCC ≥4.5 V; rise/fall times ≤100 ns required for reliable sampling. |
| HOLD (Pin 7) | Hold Input | Pauses ongoing SPI sequence when pulled low (with SCK low); preserves internal state for interrupt servicing without reinitialization. |
| VCC (Pin 8) | Supply Voltage | Power input for core logic and EEPROM programming; decoupling capacitor (0.1 µF) required adjacent to pin per layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Block Write Protection | Selectable via STATUS register (BP0/BP1): protects none, upper 1/4 (0x60–0x7F), upper 1/2 (0x40–0x7F), or entire array (0x00–0x7F) - enables secure boot code or factory calibration partitioning. |
| Self-Timed Write Cycle | No external timing control needed; internal TWC completes in ≤5 ms and automatically resets WEL - simplifies firmware and eliminates polling overhead in time-critical tasks. |
| HOLD Functionality | Halts SPI communication mid-sequence while preserving address pointer and instruction state - enables real-time interrupt response without transaction restart or buffer management. |
| Low-Voltage Operation | Full functionality at 1.8 V (min), including 5 MHz clock support and 1 µA standby current - extends battery life in portable and energy-harvesting applications. |
| Power-On Write Protection | WEL reset and SO high-Z state guaranteed at power-up; prevents spurious writes during supply ramp - eliminates need for external POR circuitry in cost-sensitive designs. |
Applications
| Industrial Sensor Node | Medical Device Calibration |
|---|---|
Use Scenario: Remote temperature/humidity sensor logging calibrated offset/gain values across seasonal voltage drift. IC Role / Device Role / Timing Role: Nonvolatile storage of factory-trimmed coefficients updated only during maintenance; accessed via SPI during boot or recalibration. Use Value: 1.8 V operation ensures compatibility with low-power sensor MCUs; 1M endurance supports 10+ years of field recalibrations; WP pin prevents accidental overwrites during firmware updates. | Use Scenario: Portable blood glucose meter storing patient-specific calibration curves and usage history. IC Role / Device Role / Timing Role: Secure parameter storage with hardware write-lock; accessed during startup and after test strip insertion. Use Value: >200-year data retention guarantees lifetime accuracy without battery-backed RAM; BP1/BP0 bits isolate critical calibration data from user-modifiable logs. |
| Automotive Body Control Module | Smart Home Thermostat |
Use Scenario: Storing seat position memory, mirror presets, and lighting profiles in 12 V automotive systems with wide input transients. IC Role / Device Role / Timing Role: SPI-configurable EEPROM interfaced to CAN-connected MCU; retains settings through ignition cycles. Use Value: 5.5 V absolute max rating and 4 kV ESD withstand protect against load-dump spikes; industrial temp range covers under-hood ambient extremes. | Use Scenario: HVAC controller retaining user schedules, Wi-Fi credentials, and firmware update flags across power loss. IC Role / Device Role / Timing Role: Low-power configuration store accessed during wake-from-sleep; updated only on setting change or OTA event. Use Value: 5 µA standby current minimizes battery drain in backup mode; 16-byte page writes optimize OTA credential updates without erasing full memory. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25LC010A-I/P | Higher VCC min (2.5 V), same 1 Kbit size, identical pinout and instruction set. | Not suitable for 1.8 V systems; otherwise functionally interchangeable in 3.3 V/5 V designs with industrial temp requirement. | Select when operating exclusively above 2.5 V and cost optimization is prioritized over ultra-low-voltage headroom. |
| AT25010B-SSHL-T | Same 1 Kbit SPI EEPROM, but with 2.7–5.5 V range, 20 MHz max clock, and different STATUS register layout. | Lacks HOLD pin; uses different write-protection scheme (software-only BP bits); no hardware WP pin. | Choose when higher speed is needed and HOLD functionality is unnecessary; verify STATUS register compatibility before firmware porting. |
Compared with 25AA010A/S16K, the 25LC010A offers identical packaging and interface but excludes 1.8 V support, while the AT25010B omits HOLD and hardware WP - making 25AA010A/S16K the only option combining ultra-low-voltage operation, interrupt-safe pausing, and dual-layer (pin + register) write protection.
Availability
25AA010A/S16K is available at Aetrix Electronics and suitable for industrial sensor nodes, medical calibration storage, automotive body control modules, and smart home thermostats requiring stable component supply across extended product lifecycles.
Supply support for 25AA010A/S16K 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 25AA010A belongs to Microchip's serial EEPROM product line, engineered for reliable, low-power nonvolatile storage in resource-constrained embedded systems where SPI interface simplicity and industrial-grade endurance are critical.
FAQ
What is the minimum supply voltage required for reliable operation of the 25AA010A/S16K?
The 25AA010A/S16K operates reliably down to 1.8 V across the full industrial temperature range (−40°C to +85°C). At this voltage, it supports up to 5 MHz clock frequency and maintains full functionality including page writes, STATUS register access, and HOLD operation - verified per DS21832H electrical characteristics Table 1-1 and Table 1-2.
Does the 25AA010A/S16K support hardware write protection independent of software configuration?
Yes, the 25AA010A/S16K includes a dedicated WP (Write-Protect) pin (Pin 3) that, when driven low, disables all writes to both memory array and STATUS register regardless of WEL or BP bit states. This hardware lock provides fail-safe protection against firmware bugs or voltage glitch-induced corruption - confirmed in Section 2.3 and Table 2-4 of the datasheet.
How does the HOLD pin function during an active SPI transaction in the 25AA010A/S16K?
The HOLD pin (Pin 7) suspends SPI communication mid-sequence when pulled low while SCK is low, preserving the internal address pointer and instruction state. SO, SI, and SCK enter high-impedance; the host can service interrupts and resume exactly where paused by driving HOLD high again with SCK low - detailed in Section 3.6 and Figure 1-1 of DS21832H.
What is the maximum clock frequency supported by the 25AA010A/S16K at 3.3 V supply?
At VCC = 3.3 V (within 2.5 V ≤ VCC < 4.5 V range), the 25AA010A/S16K supports a maximum clock frequency of 5 MHz, as specified in Table 1-2, Parameter FCLK. This ensures timing compliance for setup/hold and data valid windows under typical 3.3 V embedded system conditions.
Can the 25AA010A/S16K be used in automotive applications requiring −40°C to +125°C operation?
No - the 25AA010A/S16K is rated for Industrial temperature range only (−40°C to +85°C). For automotive AEC-Q100 Grade 2 (−40°C to +105°C) or Grade 1 (−40°C to +125°C) operation, Microchip's 25LC010A-E/* variants are qualified; the 25AA010A part number explicitly excludes extended temperature grades per Device Selection Table on DS21832H page 1.
25AA010A/S16K Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- Die
- Packaging:
- Tape & Reel (TR)
- 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:
- 1.8V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Die
25AA010A/S16K FAQ
1.How can I place an order for 25AA010A/S16K through Aetrix?
Please submit a Request for Quotation (RFQ) for 25AA010A/S16K 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 25AA010A/S16K reliable?
The price and inventory of 25AA010A/S16K are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 25AA010A/S16K is usually 5 days.
3.What payment methods are accepted for 25AA010A/S16K?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25AA010A/S16K transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25AA010A/S16K?
25AA010A/S16K orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25AA010A/S16K 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 25AA010A/S16K?
For technical support, including 25AA010A/S16K datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25AA010A/S16K requirements.
6.How does Aetrix verify that 25AA010A/S16K is sourced from the original manufacturer or authorized distributors?
All 25AA010A/S16K 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 25AA010A/S16K meets industry standards.
7.What is the process for return or replacement of 25AA010A/S16K?
All 25AA010A/S16K units undergo pre-shipment inspection (PSI). If there is an issue with 25AA010A/S16K, 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 25AA010A/S16K part is unused and in its original packaging.
Return procedure for 25AA010A/S16K:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
25AA010A/S16K Tags
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M24C02-WMN6TP
STMicroelectronics
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
Microchip Technology
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AT24C02C-SSHM-T
Microchip Technology
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24LC01BT-I/OT
Microchip Technology
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M24C02-FMC6TG
STMicroelectronics
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AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
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AT24C04C-SSHM-T
Microchip Technology
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24LC01BT-I/SN
Microchip Technology
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24AA02UIDT-I/OT
Microchip Technology
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AT24C08C-STUM-T
Microchip Technology
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