My Inquiry
My Account
Microchip Technology 24LC16BT/SN
- Part No.:
- 24LC16BT/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24LC16BT/SN.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:17,647
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
24LC16BT/SN from Microchip Technology Inc. is a 16-Kbit I²C-compatible serial EEPROM organized as eight 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 range (–40°C to +85°C). It is used in embedded system configuration storage where low-power, noise-immune nonvolatile memory is required.
For engineers reviewing the 24LC16BT/SN datasheet, 24LC16BT/SN pinout, 24LC16BT/SN application, or 24LC16BT/SN equivalent, key selection criteria include VCC min/max compliance (2.5V–5.5V), I²C timing at 400 kHz, page write buffer size (16 bytes), endurance (1 million cycles), and SOIC-8 package compatibility with legacy PCB footprints.
Technical Context
The 24LC16BT/SN functions as an I²C slave device with fixed 4-bit control code '1010' and 3-bit block-select addressing, enabling access to eight 256-word memory blocks. Its internal Address Pointer auto-increments during sequential reads and supports current address, random, and sequential read modes.
It implements Schmitt-trigger inputs and output slope control for robust noise immunity on shared buses, and uses self-timed erase/write cycles with acknowledge polling to confirm completion-no external timing components or wait states are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8), organized as eight 256-word blocks for hierarchical addressing |
| Interface | I²C-compatible two-wire serial bus with 7-bit slave address (1010xxx) |
| VCC Range | 2.5V to 5.5V - excludes sub-2.5V operation unlike 24AA16/24FC16 variants |
| Max Clock Frequency | 400 kHz - ensures timing compliance across full VCC and temperature range |
| Page Write Buffer | 16-byte buffer - enables efficient burst writes within single physical page boundaries |
| Endurance | 1,000,000 erase/write cycles - validated at 25°C/5.5V, supports long-life data logging |
| Data Retention | 200 years - guaranteed retention under industrial temperature conditions |
Pinout & Package
24LC16BT/SN is supplied in an 8-lead narrow SOIC (SN) package per Microchip drawing C04-057-SN, with 1.27 mm pitch, 3.90 mm body width, and gull-wing leads. The exposed pad is not present in this variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VSS | Ground reference | Return path for all internal circuitry; must be connected to system ground plane |
| WP | Write-protect input | Logic-high disables all write operations; tied to VCC for hardware-level memory lockout |
| SCL | Serial clock input | Asynchronous master-generated clock synchronizing all I²C transfers |
| SDA | Serial data I/O | Open-drain bidirectional line requiring external pull-up; carries addresses, data, and ACK/NACK |
| VCC | Power supply | Primary power rail; must remain stable within 2.5V–5.5V during all operations |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | 0.05 VCC hysteresis on SDA/SCL - rejects bus noise spikes up to 50 ns without external filtering |
| Output slope control | Controlled rise/fall times - eliminates ground bounce and EMI during switching transitions |
| Hardware write-protection | Dedicated WP pin - provides fail-safe memory lock independent of firmware state |
| Page write capability | 16-byte buffer with automatic address increment - reduces I²C transaction overhead by 87% vs. byte writes |
| Acknowledge polling | No external delay needed - master detects write completion via ACK/NACK response on SDA |
Applications
| Industrial Sensor Calibration Storage | Consumer Appliance Configuration Memory |
|---|---|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients in HVAC controllers and pressure transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration register accessed at power-up via I²C before ADC initialization. Use Value: Enables field-replaceable sensors without recalibration; 200-year retention ensures lifetime data integrity. | Use Scenario: Holding user preferences (temperature setpoints, cycle modes) in washing machines and microwaves. IC Role / Device Role / Timing Role: Low-power backup memory retaining settings across AC power loss and deep-sleep MCU states. Use Value: ≤1 μA standby current extends battery backup life; 400 kHz interface supports fast UI update responsiveness. |
| Medical Device Parameter History | Automotive Body Control Module Settings |
Use Scenario: Logging dose history and alarm thresholds in portable infusion pumps and glucose meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant event log storage with hardware write-protection enabled during therapy delivery. Use Value: WP pin tied to safety controller prevents accidental overwrites during critical operation; AEC-Q100 qualification confirms reliability. | Use Scenario: Saving seat/mirror position presets and lighting profiles in automotive BCMs. IC Role / Device Role / Timing Role: I²C slave on vehicle body network, accessed by main MCU during ignition-on sequence. Use Value: SOIC-8 footprint matches legacy designs; 1M-cycle endurance supports 10+ years of daily reprogramming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA16T/SN | Wider VCC range (1.7V–5.5V); lower 100 kHz max clock below 2.5V | Supports battery-powered systems down to 1.7V; unsuitable for fixed 2.5V-only rails | Select when ultra-low-voltage operation is required and clock speed can be reduced |
| 24FC16T/SN | 1 MHz max clock; same 1.7V–5.5V VCC range; higher E-temp standby current (3 μA) | Enables faster firmware updates in high-throughput systems; requires tighter noise control at 1 MHz | Select when bandwidth >400 kHz is mandatory and board layout supports 1 MHz signal integrity |
Compared with 24AA16T/SN and 24FC16T/SN, the 24LC16BT/SN offers optimal balance of industrial-grade voltage margin (2.5V min), proven 400 kHz timing headroom, and lowest standby current (1 μA) - making it ideal for cost-sensitive, fixed-rail embedded systems prioritizing reliability over voltage flexibility or raw speed.
Availability
24LC16BT/SN is available at Aetrix Electronics and suitable for industrial sensor calibration storage, consumer appliance configuration memory, and medical device parameter history requiring stable component supply and long-term lifecycle support.
Supply support for 24LC16BT/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 manufacturer specializing in microcontrollers, analog devices, and memory products with broad industrial and automotive qualification coverage.
The 24LC16B family is designed for reliable, low-power I²C-based nonvolatile storage in space-constrained embedded systems where deterministic timing, hardware write protection, and extended temperature operation are essential.
FAQ
What is the minimum operating voltage for the 24LC16BT/SN?
The 24LC16BT/SN requires a minimum VCC of 2.5V, as specified in its electrical characteristics table. Unlike the 24AA16 or 24FC16 variants, it is not rated for operation below 2.5V - attempting to power it at 1.8V or 2.2V will result in undefined behavior or failure to respond on the I²C bus. This 2.5V threshold ensures stable internal charge pump operation for EEPROM programming.
Does the 24LC16BT/SN support page write operations, and what is the buffer size?
Yes, the 24LC16BT/SN supports page write operations with a 16-byte page buffer. This allows up to 16 sequential bytes to be loaded into the buffer and written to memory in a single self-timed cycle. Physical page boundaries align to 16-byte offsets (e.g., 0x00–0x0F, 0x10–0x1F), and crossing a boundary causes wraparound - so software must validate address alignment before initiating page writes.
How does the Write-Protect (WP) pin function on the 24LC16BT/SN?
On the 24LC16BT/SN, the WP pin is a logic-level input: when tied to VCC, the entire memory array (addresses 0x000–0x7FF) becomes read-only; when tied to VSS or left floating, full read/write access is enabled. This hardware-level protection operates independently of I²C commands and remains active even during power transitions, providing fail-safe memory lockdown in safety-critical applications.
Is the 24LC16BT/SN AEC-Q100 qualified, and for which grade?
Yes, the 24LC16BT/SN is AEC-Q100 qualified for Grade 3 (–40°C to +85°C), matching its industrial temperature rating. This qualification covers stress testing for automotive body electronics applications such as seat control modules and lighting controllers, confirming reliability under thermal cycling, humidity, and vibration conditions defined in the AEC standard.
What package type does the suffix '/SN' indicate for the 24LC16BT/SN?
The '/SN' suffix denotes the 8-lead narrow plastic small outline (SOIC-N) package per Microchip drawing C04-057-SN, with 3.90 mm body width, 1.27 mm lead pitch, and gull-wing leads. It is pin-compatible with industry-standard SOIC-8 footprints and supports reflow soldering per JEDEC J-STD-020. The package contains no exposed thermal pad.
24LC16BT/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:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24LC16BT/SN FAQ
1.How can I place an order for 24LC16BT/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24LC16BT/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/SN reliable?
The price and inventory of 24LC16BT/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/SN is usually 5 days.
3.What payment methods are accepted for 24LC16BT/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24LC16BT/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24LC16BT/SN?
24LC16BT/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24LC16BT/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/SN?
For technical support, including 24LC16BT/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24LC16BT/SN requirements.
6.How does Aetrix verify that 24LC16BT/SN is sourced from the original manufacturer or authorized distributors?
All 24LC16BT/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/SN meets industry standards.
7.What is the process for return or replacement of 24LC16BT/SN?
All 24LC16BT/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24LC16BT/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/SN part is unused and in its original packaging.
Return procedure for 24LC16BT/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24LC16BT/SN Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
