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Microchip Technology 24C16-E/SL
- Part No.:
- 24C16-E/SL
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24C16-E/SL.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:378
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Product details
Overview
24C16-E/SL from Microchip Technology is a 16 Kbit (2 K × 8) I²C-compatible serial EEPROM with 1.7 V to 5.5 V supply voltage, 400 kHz maximum clock frequency, and endurance of 1 million write cycles. It operates in industrial temperature range (–40°C to +85°C) and is used for configuration storage in embedded controllers and power management systems.
For engineers reviewing the 24C16-E/SL datasheet, 24C16-E/SL pinout, 24C16-E/SL application, or 24C16-E/SL equivalent, key selection factors include I²C address flexibility (A0–A1 pins), write protection via WP pin, page write capability (16-byte pages), and SOIC-8 package compatibility with legacy board layouts.
Technical Context
The 24C16-E/SL implements a standard two-wire I²C interface with support for Standard-Mode (100 kHz) and Fast-Mode (400 kHz) signaling. It uses an internal address counter that auto-increments during sequential reads, enabling efficient block data access without repeated address writes.
Memory is organized into eight 256-byte blocks, each independently writable. The device includes a hardware write-protect (WP) input that disables all write operations when asserted, and supports software write protection via status register bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), sufficient for storing multiple firmware configuration sets or calibration tables. |
| I²C Clock Frequency | Up to 400 kHz - enables fast parameter updates without blocking main controller execution for extended periods. |
| Write Endurance | 1,000,000 cycles - supports frequent recalibration or logging in industrial monitoring applications. |
| Data Retention | 200 years at +25°C - ensures long-term reliability for unattended equipment with infrequent maintenance. |
| Supply Voltage Range | 1.7 V to 5.5 V - interoperable with 1.8 V, 3.3 V, and 5 V logic domains without level-shifting circuitry. |
| Operating Temperature | –40°C to +85°C - qualified for use in automotive body control modules and industrial PLCs. |
Pinout & Package
24C16-E/SL is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package with 150 mil width, surface-mount compatible, and JEDEC MS-012AC compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1 | Address Input | Select one of four possible I²C slave addresses (1010000x to 1010011x) to enable multi-device bus sharing. |
| WP | Write Protect Input | Hardware-level lock: pulls high to disable all write commands, preventing accidental overwrites during power-up or firmware update. |
| SDA | Serial Data Line | Open-drain bidirectional I²C data line requiring external pull-up resistor (typically 2.2–10 kΩ). |
| SCL | Serial Clock Line | Input-only I²C clock line synchronized to master timing; no internal clock generation. |
| VCC | Power Supply | Single-supply operation across full 1.7–5.5 V range; no separate logic or core voltage rails required. |
| VSS | Ground | Reference return path for both I/O and memory array; must be low-impedance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Page Write Mode | 16-byte page buffer allows burst programming of aligned data blocks, reducing I²C transaction overhead by up to 94% vs. byte-write. |
| Hardware Write Protection | WP pin provides fail-safe, non-volatile write disable independent of software state or power cycling. |
| Low-Voltage Operation | Functional down to 1.7 V enables direct integration with battery-backed or energy-harvesting subsystems. |
| Individual Block Lock | Four 256-byte blocks can be software-locked separately, supporting hierarchical configuration security (e.g., factory defaults vs. user settings). |
Applications
| Smart Energy Meters | Industrial PLC I/O Modules |
|---|---|
Use Scenario: Storing tariff schedules, meter calibration constants, and tamper-event logs across 15+ year field deployment. IC Role / Device Role / Timing Role: Nonvolatile configuration and event-history storage with deterministic write latency under 5 ms. Use Value: 200-year data retention and 1M-cycle endurance ensure integrity through repeated firmware updates and utility-side reprogramming. | Use Scenario: Holding module identification, channel scaling coefficients, and diagnostic fault history in DIN-rail mounted I/O expanders. IC Role / Device Role / Timing Role: I²C-configurable parameter store accessible during hot-swap insertion and runtime diagnostics. Use Value: Hardware WP pin prevents corruption during power brownouts common in factory floor environments with shared AC lines. |
| Automotive Body Control Units | Medical Infusion Pumps |
Use Scenario: Saving seat/mirror position presets, lighting profiles, and door-lock behavior across vehicle ignition cycles. IC Role / Device Role / Timing Role: Low-power I²C slave storing user preferences with guaranteed read/write at 1.8 V battery backup. Use Value: 1.7 V minimum operating voltage supports operation during cranking transients where main 12 V rail dips below 6 V. | Use Scenario: Recording dose history, alarm thresholds, and calibration drift compensation values for FDA-regulated drug delivery. IC Role / Device Role / Timing Role: Secure, traceable parameter archive with write-protection enforced at both hardware (WP) and software (block lock) levels. Use Value: Independent 256-byte block locking enables separation of regulatory-critical calibration data from operational logs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16D-SSHM-T | Same 16 Kbit capacity and SOIC-8 package; supports 1 MHz Fast Mode Plus; lower 1.7–5.5 V range identical. | Higher clock rate enables faster bulk writes in host-constrained systems; no change to existing I²C driver stack required. | Preferred when host MCU supports Fast Mode Plus and throughput >400 kHz is needed for configuration loading. |
| BR24G16NUX-10 | 16 Kbit, 1.7–5.5 V, but uses 2-wire bus with different ACK protocol; supports 1 MHz; built-in error correction (ECC). | ECC improves bit-error resilience in high-noise medical or industrial EMI environments; requires minor firmware adaptation for ACK handling. | Chosen where data integrity under EMI stress is prioritized over drop-in compatibility with legacy I²C stacks. |
Compared with AT24C16D-SSHM-T and BR24G16NUX-10, the 24C16-E/SL offers proven industrial qualification, simpler I²C timing compliance, and seamless integration with existing Microchip ecosystem tools-making it optimal for cost-sensitive, volume-manufactured embedded systems requiring long-term supply stability.
Availability
24C16-E/SL is available at Aetrix Electronics and suitable for smart metering, industrial PLCs, automotive body electronics, and medical device configuration storage requiring stable component supply across multi-year production cycles.
Supply support for 24C16-E/SL 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 is a U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory products for embedded control applications.
The 24C16-E/SL belongs to Microchip's serial EEPROM product line, designed specifically for reliable, low-power, I²C-based nonvolatile data storage in space- and cost-constrained embedded systems.
FAQ
What is the maximum I²C clock frequency supported by the 24C16-E/SL?
The 24C16-E/SL supports a maximum I²C clock frequency of 400 kHz in Fast Mode. This allows efficient parameter updates while maintaining compatibility with standard I²C peripherals and avoiding signal integrity issues on typical PCB traces. The 24C16-E/SL does not support Fast Mode Plus (1 MHz) or High-Speed Mode.
Does the 24C16-E/SL require external pull-up resistors on SDA and SCL lines?
Yes, the 24C16-E/SL requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. Typical values range from 2.2 kΩ to 10 kΩ depending on bus capacitance and speed requirements. The 24C16-E/SL itself does not integrate internal pull-ups.
How many unique I²C addresses can be assigned to the 24C16-E/SL?
The 24C16-E/SL supports four unique I²C slave addresses using the A0 and A1 pins. These pins configure the two least-significant bits of the base address (1010xxx), yielding addresses 0x50 through 0x53. All four combinations are valid and mutually exclusive on the same bus.
Can the 24C16-E/SL operate reliably at 1.8 V supply voltage?
Yes, the 24C16-E/SL is fully specified to operate at 1.8 V, within its 1.7 V to 5.5 V supply range. At 1.8 V, it maintains full I²C functionality including 400 kHz clock support, page write, and hardware write protection - making it suitable for low-voltage battery-powered designs.
Is the 24C16-E/SL pin-compatible with other Microchip 24Cxx EEPROMs in SOIC-8 package?
Yes, the 24C16-E/SL shares identical SOIC-8 pinout and I²C interface behavior with other Microchip 24Cxx devices like the 24C02, 24C04, and 24C08 in the same package. However, memory size, page length, and block-lock granularity differ - firmware must account for these variations when substituting part numbers.
24C16-E/SL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 16Kbit
- Memory Organization:
- 2K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 100 kHz
- Write Cycle Time - Word, Page:
- 1ms
- Access Time:
- 3.5 µs
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24C16-E/SL FAQ
1.How can I place an order for 24C16-E/SL through Aetrix?
Please submit a Request for Quotation (RFQ) for 24C16-E/SL 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 24C16-E/SL reliable?
The price and inventory of 24C16-E/SL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24C16-E/SL is usually 5 days.
3.What payment methods are accepted for 24C16-E/SL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24C16-E/SL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24C16-E/SL?
24C16-E/SL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24C16-E/SL 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 24C16-E/SL?
For technical support, including 24C16-E/SL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24C16-E/SL requirements.
6.How does Aetrix verify that 24C16-E/SL is sourced from the original manufacturer or authorized distributors?
All 24C16-E/SL 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 24C16-E/SL meets industry standards.
7.What is the process for return or replacement of 24C16-E/SL?
All 24C16-E/SL units undergo pre-shipment inspection (PSI). If there is an issue with 24C16-E/SL, 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 24C16-E/SL part is unused and in its original packaging.
Return procedure for 24C16-E/SL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24C16-E/SL Tags
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