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Microchip Technology 24LC16BT-E/SN
- Part No.:
- 24LC16BT-E/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24LC16BT-E/SN.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,785
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Product details
Overview
24LC16BT-E/SN from Microchip Technology Inc. is a 16-Kbit I²C-compatible serial EEPROM organized as eight 256 × 8-bit blocks, operating from 2.5V to 5.5V with 400 kHz max clock frequency, 5 ms max page write time, and industrial/extended temperature support (–40°C to +125°C). It serves as nonvolatile configuration storage in embedded controllers, sensor nodes, and power management ICs.
For engineers reviewing the 24LC16BT-E/SN datasheet, 24LC16BT-E/SN pinout, 24LC16BT-E/SN application, or 24LC16BT-E/SN equivalent, key selection criteria include VCC range compatibility (2.5–5.5V), I²C timing compliance at extended temperature, hardware write-protection via WP pin, and SOIC-8 package suitability for space-constrained PCB layouts.
Technical Context
The 24LC16BT-E/SN implements a two-wire I²C slave interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal architecture includes an 8-bit address pointer, 16-byte page write buffer, and HV generator for EEPROM programming.
It supports three read modes-current address, random, and sequential-and uses acknowledge polling to detect write cycle completion. The device enforces strict I²C bus protocol adherence, including Start/Stop condition generation, ACK/NACK signaling, and page boundary wraparound behavior during multi-byte writes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 bytes), organized as eight 256-word blocks for hierarchical addressing |
| VCC Range | 2.5V to 5.5V - ensures compatibility with 3.3V and 5V logic systems without level shifting |
| Max Clock Frequency | 400 kHz - defines maximum I²C bus speed under all valid VCC and temperature conditions |
| Page Write Buffer | 16 bytes - enables efficient burst writes within a single physical page (0–15, 16–31, etc.) |
| Write Cycle Time | 5 ms maximum - determines minimum interval between successive write commands |
| Endurance | 1 million erase/write cycles - guarantees long-term reliability in firmware update or calibration logging use cases |
| Data Retention | 200 years - ensures data integrity across product lifetime without refresh |
| Temp Range | –40°C to +125°C (Extended grade) - qualified for automotive under-hood and industrial high-temp environments |
Pinout & Package
24LC16BT-E/SN is supplied in an 8-lead narrow SOIC (SN) package per Microchip drawing C04-057-SN Rev E, with 1.27 mm pitch, 3.90 mm body width, and 4.90 mm length. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Common return path for all internal circuitry; must be low-impedance connection to system GND plane |
| WP | Hardware write-protect input | Logic-high disables all write operations (000h–7FFh); tied to VSS for full read/write access |
| SCL | Serial clock input | Asynchronous edge-triggered clock for I²C synchronization; requires external pull-up resistor |
| SDA | Serial data bidirectional I/O | Open-drain bus line shared among multiple I²C slaves; requires external 2–10 kΩ pull-up |
| VCC | Power supply | Primary voltage source; decoupling capacitor (0.1 μF ceramic) required within 5 mm of pin |
| A0, A1, A2 | No-connect (NC) | Internally unconnected; may be left floating, tied to VSS, or tied to VCC with no functional impact |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt trigger inputs | Provides 0.05×VCC hysteresis on SDA/SCL to reject noise spikes up to 50 ns duration |
| Output slope control | Slows SDA edge rates to prevent ground bounce and EMI in high-speed digital systems |
| Self-timed write cycle | Eliminates need for external timeout logic; internal timer completes erase/write before ACK resumes |
| Hardware write protection | Single-pin (WP) global lock prevents accidental overwrites during power transitions or firmware faults |
| ESD robustness | Withstands >4,000V HBM - reduces risk of field failure in handling and assembly |
| I²C bus compatibility | Fully compliant with standard-mode (100 kHz) and fast-mode (400 kHz) I²C specifications |
Applications
| Industrial Sensor Calibration | Automotive Body Control Module |
|---|---|
Use Scenario: Storing factory-trimmed offset/gain coefficients and linearization tables for analog sensor front-ends. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed during power-on initialization via I²C at 100 kHz. Use Value: Enables one-time calibration in production without requiring reprogramming after soldering or environmental stress. | Use Scenario: Holding seat position memory, mirror presets, and lighting configuration in vehicle door modules. IC Role / Device Role / Timing Role: Persistent parameter store interfaced to MCU over I²C with WP pin tied to chassis ground for safety-critical write lock. Use Value: Survives 125°C ambient and repeated thermal cycling while retaining user preferences across battery disconnects. |
| Medical Infusion Pump Settings | Smart Energy Meter Firmware Logs |
Use Scenario: Recording dose history, alarm thresholds, and maintenance intervals in Class II medical devices. IC Role / Device Role / Timing Role: Secure audit trail storage with hardware write-protection enabled during normal operation. Use Value: Meets IEC 62304 data retention requirements (200 years) and supports traceability for regulatory compliance. | Use Scenario: Logging voltage sag events, tamper detection timestamps, and firmware version rollbacks in utility-grade meters. IC Role / Device Role / Timing Role: High-endurance (1M cycles) data logger using page writes to minimize wear on individual memory locations. Use Value: Extends meter service life beyond 15 years by distributing write load across 128 pages instead of single-address cycling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA16T-I/SN | Wider VCC range (1.7–5.5V); lower 100 kHz max clock below 2.5V; same 16Kbit capacity and SOIC-8 package | Supports 1.8V microcontrollers; unsuitable for 2.5V-only systems due to reduced speed and timing margins | Select when interfacing with ultra-low-voltage MCUs or battery-powered designs where 2.5V minimum cannot be guaranteed |
| AT24C16C-SSHM-T | Same 16Kbit size, SOIC-8, and 400 kHz speed; rated for –40°C to +85°C only (industrial grade), not extended | Lacks 125°C qualification; lower endurance (400k cycles); no AEC-Q100 automotive qualification | Acceptable for cost-sensitive consumer or commercial gear where extended temperature and automotive reliability are not required |
Compared with 24LC16BT-E/SN, the 24AA16T-I/SN offers broader voltage flexibility but sacrifices speed below 2.5V, while the AT24C16C-SSHM-T reduces thermal and endurance margins to lower cost - making the 24LC16BT-E/SN optimal for automotive and high-reliability industrial deployments demanding full extended-temp operation and AEC-Q100 compliance.
Availability
24LC16BT-E/SN is available at Aetrix Electronics and suitable for automotive body electronics, industrial sensor calibration, and medical device configuration storage requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 24LC16BT-E/SN 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 company specializing in microcontrollers, analog devices, and memory products, with global manufacturing and quality certifications including ISO 9001 and IATF 16949.
The 24LC16B family was designed specifically for reliable, low-power nonvolatile storage in automotive, industrial, and medical systems where extended temperature operation, hardware write protection, and AEC-Q100 qualification are mandatory.
FAQ
What is the maximum I²C clock frequency supported by the 24LC16BT-E/SN?
The 24LC16BT-E/SN supports a maximum I²C clock frequency of 400 kHz across its full specified VCC range (2.5V to 5.5V) and extended temperature range (–40°C to +125°C). This is confirmed in the Device Selection Table and AC Characteristics section of DS20001703M, where FCLK is specified as 400 kHz for 24LC16B devices regardless of voltage or temperature grade. The 24LC16BT-E/SN does not support 1 MHz operation - that capability is exclusive to the 24FC16 variant.
Does the 24LC16BT-E/SN require external pull-up resistors on SDA and SCL lines?
Yes, the 24LC16BT-E/SN requires external pull-up resistors on both SDA and SCL lines because it uses open-drain outputs. The recommended values are 10 kΩ for 100 kHz operation, 2 kΩ for 400 kHz, and must be connected to the same VCC rail used by the device. This requirement is explicitly stated in Section 2.2 of DS20001703M and is fundamental to proper I²C bus operation.
How does the WP pin function on the 24LC16BT-E/SN?
On the 24LC16BT-E/SN, the WP (Write-Protect) pin is a logic-level input that globally disables all write operations when tied to VCC, leaving read operations fully functional. When WP is tied to VSS (ground), full read/write access is enabled. This hardware-level protection prevents accidental overwrites during power-up/down transients or firmware errors, and is documented in Section 2.4 and Figure 6-3 of DS20001703M.
What is the page write capability of the 24LC16BT-E/SN?
The 24LC16BT-E/SN features a 16-byte page write buffer, allowing up to 16 bytes to be written in a single I²C transaction before initiating the internal 5 ms write cycle. Page boundaries align to 16-byte offsets (0x00–0x0F, 0x10–0x1F, etc.), and crossing a boundary causes wraparound within the current page - a behavior explicitly detailed in Section 6.2 and Figure 6-2 of DS20001703M.
Is the 24LC16BT-E/SN AEC-Q100 qualified?
Yes, the 24LC16BT-E/SN is AEC-Q100 qualified for automotive applications, as confirmed in the "Features" section of DS20001703M which states "Automotive AEC-Q100 Qualified" for the 24XX16 family, and in the Device Selection Table where the "24LC16B" row lists "I, E" temperature grades - with Extended (E) grade being mandatory for AEC-Q100 Grade 1 (–40°C to +125°C). The "T-E/SN" suffix denotes Extended temperature and SOIC-8 packaging.
24LC16BT-E/SN 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:
- 16Kbit
- Memory Organization:
- 2K 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24LC16BT-E/SN FAQ
1.How can I place an order for 24LC16BT-E/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC16BT-E/SN 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 24LC16BT-E/SN reliable?
The price and inventory of 24LC16BT-E/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24LC16BT-E/SN is usually 5 days.
3.What payment methods are accepted for 24LC16BT-E/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC16BT-E/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC16BT-E/SN?
24LC16BT-E/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC16BT-E/SN 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 24LC16BT-E/SN?
For technical support, including 24LC16BT-E/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC16BT-E/SN requirements.
6.How does Aetrix verify that 24LC16BT-E/SN is sourced from the original manufacturer or authorized distributors?
All 24LC16BT-E/SN 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 24LC16BT-E/SN meets industry standards.
7.What is the process for return or replacement of 24LC16BT-E/SN?
All 24LC16BT-E/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24LC16BT-E/SN, 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 24LC16BT-E/SN part is unused and in its original packaging.
Return procedure for 24LC16BT-E/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC16BT-E/SN Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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