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Microchip Technology 24LC08B-I/MS16KVAO
- Part No.:
- 24LC08B-I/MS16KVAO
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24LC08B-I/MS16KVAO.pdf
- Description:
- IC EEPROM 8KBIT I2C 400KHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,865
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Product details
Overview
24LC08B-I/MS16KVAO from Microchip Technology Inc. is an 8-Kbit I²C-compatible serial EEPROM organized as four 256 × 8-bit memory blocks. It operates from 2.5V to 5.5V, supports up to 400 kHz clock frequency, features hardware write-protection via the WP pin, and delivers ≤1 µA standby current at industrial temperature (–40°C to +85°C). It is used for nonvolatile parameter storage in embedded microcontroller systems requiring reliable, low-power configuration retention.
For engineers reviewing the 24LC08B-I/MS16KVAO datasheet, 24LC08B-I/MS16KVAO pinout, 24LC08B-I/MS16KVAO application, or 24LC08B-I/MS16KVAO equivalent, this page provides verified electrical specs, package mapping to MSOP-8, I²C timing compliance, endurance (1M cycles), and real-world use cases in power management, sensor calibration, and firmware configuration storage.
Technical Context
The 24LC08B-I/MS16KVAO implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal architecture includes a 16-byte page write buffer, self-timed erase/write cycle, and address pointer logic supporting current-address, random, and sequential read modes.
It uses a fixed 4-bit device identifier (1010) with 2-bit block select (B1/B0) and R/W bit for addressing across its 1024-byte memory space (000h–3FFh). Write protection is implemented via the dedicated WP pin - tied to VCC to inhibit all writes while permitting reads - and is fully functional in the MSOP-8 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 8 Kbit (1024 × 8-bit), organized as four independent 256-word blocks for flexible partitioned storage |
| Supply Voltage Range | 2.5V to 5.5V - ensures compatibility with 3.3V and 5V logic domains without level shifting |
| Max Clock Frequency | 400 kHz - enables fast configuration updates while maintaining robustness on noisy PCBs |
| Page Write Buffer | 16 bytes - reduces I²C transaction count by up to 16× versus byte-write mode, improving bus efficiency |
| Write Cycle Time | ≤5 ms (max) - defines worst-case latency before next command can be issued after a Stop condition |
| Endurance & Retention | 1,000,000 erase/write cycles and >200 years data retention - validated at 25°C/5.5V, suitable for long-life industrial deployments |
| Standby Current | ≤1 µA at I-temp - minimizes quiescent power in battery-backed or energy-harvesting applications |
Pinout & Package
24LC08B-I/MS16KVAO is packaged in an 8-lead MSOP (Micro Small Outline Package) with 0.65 mm pitch, 3.0 mm × 3.0 mm body, and exposed pad (optional VSS connection). Pin 1 is marked with a dot; pin numbering follows standard MSOP convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal circuitry; must be connected to system GND for stable operation and ESD discharge |
| WP | Hardware write-protect input | Logic-high (VCC) disables all write operations to entire memory array; logic-low (VSS) enables full read/write access |
| SCL | Serial clock input | Asynchronous master-generated clock synchronizing all I²C transfers; requires external pull-up resistor |
| SDA | Serial data bidirectional I/O | Open-drain bus line shared across multiple I²C devices; requires external pull-up and supports multi-master arbitration |
| VCC | Power supply | Primary supply rail (2.5–5.5V); decoupling capacitor (0.1 µF) recommended within 5 mm of pin |
| A0, A1, A2 | No-connect pins | Internally unconnected; may be left floating, tied to VSS, or tied to VCC with no functional impact |
Key Features
| Feature | Design Value |
|---|---|
| I²C Bus Compatibility | Fully compliant with Philips I²C specification, including Start/Stop detection, ACK/NACK protocol, and 7-bit addressing with block-select extension |
| Noise Immunity | Schmitt-trigger inputs and 50 ns input filter on SDA/SCL reject transient noise up to 50 ns, enabling reliable operation in electrically harsh environments |
| Page Write Efficiency | 16-byte buffer allows single I²C transaction to program one full page, reducing host CPU overhead and bus contention |
| Hardware Write Protection | Dedicated WP pin provides tamper-resistant, non-software-dependent memory lock - critical for calibration constants and security keys |
| Extended Temperature Support | Qualified for –40°C to +85°C operation with guaranteed DC/AC specs, ensuring reliability in automotive under-hood and industrial control cabinets |
Applications
| Power Management Unit Calibration | Sensor Offset & Gain Storage |
|---|---|
Use Scenario: Storing factory-trimmed voltage reference offsets and current-sense amplifier gain coefficients in AC/DC power supplies. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding calibration parameters accessed during power-up initialization sequence. Use Value: Enables ±0.5% output regulation accuracy over lifetime without requiring re-calibration; leverages 1M-cycle endurance for field updates. | Use Scenario: Retaining temperature-compensated offset values for MEMS pressure sensors in HVAC controllers. IC Role / Device Role / Timing Role: Dedicated parameter store queried at boot and updated during periodic auto-zero routines. Use Value: Maintains sensor accuracy across –25°C to +70°C operating range using <1 µA standby current to extend battery life. |
| Firmware Configuration Lock | Industrial PLC I/O Mapping |
Use Scenario: Securing bootloader configuration flags (e.g., debug enable, secure boot mode) against accidental overwrite. IC Role / Device Role / Timing Role: Write-protected memory segment accessed only during manufacturing programming; WP pin hardwired to VCC. Use Value: Prevents runtime corruption of critical security settings - validated by AEC-Q100 qualification for automotive-grade reliability. | Use Scenario: Storing user-defined digital I/O pin assignments and analog input scaling factors in modular PLC backplanes. IC Role / Device Role / Timing Role: Persistent BOM-independent configuration database accessible via I²C from main controller MCU. Use Value: Supports field-reconfigurable I/O modules without firmware reflashing; 400 kHz interface enables sub-10 ms update times. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA08-I/MS | Wider VCC range (1.7–5.5V); lower 100 kHz max clock below 2.5V; same 8-Kbit organization and MSOP-8 package | Better suited for 1.8V systems or battery-powered devices with brown-out conditions | Select when operating below 2.5V is required; verify timing margins at reduced VCC |
| AT24C08D-MAHM-T | Same 8-Kbit size, 2.5–5.5V range, and 400 kHz speed; different pinout (SOIC-8 vs MSOP-8); no WP pin in this variant | Lacks hardware write-protection; requires software-based locking or external logic for secure storage | Choose if MSOP footprint is not mandatory and WP functionality is managed elsewhere in design |
Compared with 24LC08B-I/MS16KVAO, the 24AA08-I/MS offers broader voltage flexibility but reduced speed below 2.5V, while the AT24C08D-MAHM-T trades WP functionality for SOIC-8 compatibility - making the 24LC08B-I/MS16KVAO optimal for compact, write-protected 3.3V/5V designs requiring MSOP-8 fit.
Availability
24LC08B-I/MS16KVAO is available at Aetrix Electronics and suitable for industrial control, automotive subsystems, and medical device configuration storage requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for 24LC08B-I/MS16KVAO 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 components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 24LC08B belongs to Microchip's legacy serial EEPROM product line, engineered for cost-sensitive, low-power embedded systems requiring robust nonvolatile storage with minimal board space and design complexity.
FAQ
What is the maximum clock frequency supported by the 24LC08B-I/MS16KVAO?
The 24LC08B-I/MS16KVAO supports a maximum I²C clock frequency of 400 kHz when operated within its specified VCC range of 2.5V to 5.5V. This is confirmed in the Device Selection Table and AC Characteristics section of DS20001710M. Frequencies above 400 kHz are not guaranteed and may result in communication failure or timing violations.
Does the 24LC08B-I/MS16KVAO support hardware write protection?
Yes, the 24LC08B-I/MS16KVAO supports hardware write protection via its dedicated WP (Write-Protect) pin. When WP is tied to VCC, all write operations to the entire 1024-byte memory array are inhibited while read operations remain fully functional - a feature explicitly documented in Section 2.4 and Figure 6-3 of DS20001710M.
What package type does the 24LC08B-I/MS16KVAO use?
The 24LC08B-I/MS16KVAO uses an 8-lead MSOP (Micro Small Outline Package) with 0.65 mm lead pitch and 3.0 mm × 3.0 mm body dimensions. This is confirmed by the "Available Packages" row for 24LC08B in the Device Selection Table and the MSOP-specific marking example ("245") in Table 9-1 of DS20001710M.
How many erase/write cycles is the 24LC08B-I/MS16KVAO rated for?
The 24LC08B-I/MS16KVAO is rated for more than 1,000,000 erase/write cycles under standard conditions (25°C, 5.5V, page-mode operation), as stated in the Features list and Table 1-1 (Parameter D17) of DS20001710M. This endurance rating is validated per JEDEC standards and applies across its full industrial temperature range.
Is the 24LC08B-I/MS16KVAO AEC-Q100 qualified?
Yes, the 24LC08B-I/MS16KVAO is AEC-Q100 qualified for automotive applications, as explicitly noted in the Features section of DS20001710M. This qualification covers stress testing for temperature cycling, humidity, ESD, and other reliability parameters required for automotive-grade components.
24LC08B-I/MS16KVAO Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 8Kbit
- Memory Organization:
- 1K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
24LC08B-I/MS16KVAO FAQ
1.How can I place an order for 24LC08B-I/MS16KVAO through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC08B-I/MS16KVAO 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 24LC08B-I/MS16KVAO reliable?
The price and inventory of 24LC08B-I/MS16KVAO are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC08B-I/MS16KVAO is usually 5 days.
3.What payment methods are accepted for 24LC08B-I/MS16KVAO?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC08B-I/MS16KVAO transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC08B-I/MS16KVAO?
24LC08B-I/MS16KVAO orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC08B-I/MS16KVAO 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 24LC08B-I/MS16KVAO?
For technical support, including 24LC08B-I/MS16KVAO datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC08B-I/MS16KVAO requirements.
6.How does Aetrix verify that 24LC08B-I/MS16KVAO is sourced from the original manufacturer or authorized distributors?
All 24LC08B-I/MS16KVAO 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 24LC08B-I/MS16KVAO meets industry standards.
7.What is the process for return or replacement of 24LC08B-I/MS16KVAO?
All 24LC08B-I/MS16KVAO units undergo pre-shipment inspection (PSI). If there is an issue with 24LC08B-I/MS16KVAO, 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 24LC08B-I/MS16KVAO part is unused and in its original packaging.
Return procedure for 24LC08B-I/MS16KVAO:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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