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Microchip Technology AT24C16A-10TI-1.8
- Part No.:
- AT24C16A-10TI-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C16A-10TI-1.8.pdf
- Description:
- IC EEPROM 16KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,343
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Product details
Overview
AT24C16A-10TI-1.8 from Microchip Technology (formerly Atmel) is a 16-kbit I²C-compatible serial EEPROM optimized for low-voltage embedded systems. It delivers 2048 × 8-bit memory organization, 1.8V to 5.5V supply operation, 16-byte page write capability, and 100 kHz clock rate at 1.8V. It is used in industrial sensor calibration storage, power meter configuration retention, and firmware parameter backup where space-constrained, low-power nonvolatile memory is required.
For engineers reviewing the AT24C16A-10TI-1.8 datasheet, AT24C16A-10TI-1.8 pinout, AT24C16A-10TI-1.8 application, or AT24C16A-10TI-1.8 equivalent, key selection considerations include its 1.8V minimum VCC support, absence of A0–A2 address pins (single-device bus limitation), WP-enabled hardware write protection, and TSSOP-8 packaging for high-density PCB layouts.
Technical Context
The AT24C16A-10TI-1.8 implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA and SCL inputs. Its internal architecture supports 128 pages of 16 bytes each, requiring an 11-bit word address for random access. Unlike smaller family members, it omits A0–A2 device address pins-enabling only one device per I²C bus.
Write operations use self-timed cycles (≤5 ms max), with acknowledge polling supported post-write. The WP pin provides hardware-level write protection: when tied to VCC, full 16K array write protection is active; when grounded, normal read/write functionality resumes. Standby current is 0.6 µA typical at 1.8V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), enabling storage of 2 KB of persistent configuration or calibration data |
| Supply Voltage Range | 1.8V to 5.5V - supports direct interfacing with 1.8V logic domains without level shifting |
| I²C Clock Rate | 100 kHz at 1.8V - ensures reliable timing margin in low-voltage, noise-sensitive applications |
| Page Write Size | 16 bytes per page - reduces write transaction overhead vs. byte writes, improving firmware update efficiency |
| Endurance & Retention | 1 million write cycles / 100 years data retention - suitable for field-deployed devices requiring long-term reliability |
| Operating Temperature | −40°C to +85°C - qualified for industrial-grade operation in harsh ambient environments |
| Package | 8-lead TSSOP (8A2), 3.0 mm × 4.4 mm footprint - enables compact layout in space-constrained modules |
Pinout & Package
AT24C16A-10TI-1.8 is supplied in an 8-lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153 compliant, with 0.65 mm pitch and 3.0 mm × 4.4 mm body size. Pin 1 is marked by a dot or beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | No-connect (NC) | Not bonded internally; must be left unconnected - eliminates external address resistor network and simplifies routing |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up; shares bus with other I²C devices via wire-OR topology |
| SCL | Serial Clock Input | Positive-edge clock input for data transfer; filtered and Schmitt-triggered for robust noise immunity |
| WP | Write Protect Control | Hardware-enables full-array write lock when pulled high; allows selective protection without software intervention |
| VCC | Power Supply | Accepts 1.8V–5.5V; decoupling capacitor (0.1 µF) required near pin for stable low-voltage operation |
| GND | Ground Reference | System ground return path; must be low-impedance and routed separately from noisy digital returns |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V Operation Support | Enables direct integration into ultra-low-power microcontroller subsystems (e.g., ARM Cortex-M0+ with 1.8V I/O) without voltage translation |
| Hardware Write Protection | WP pin disables all write operations when asserted - prevents accidental overwrites during power transients or firmware faults |
| 16-Byte Page Writes | Reduces I²C transaction count by up to 16× vs. byte writes, lowering bus occupancy and host CPU overhead in parameter updates |
| No Device Address Pins | Eliminates A0–A2 wiring and address conflicts - simplifies single-device bus design and reduces BOM count |
| Industrial Temperature Range | Validated operation from −40°C to +85°C ensures reliability in outdoor meters, factory automation controllers, and HVAC systems |
Applications
| Smart Energy Metering | Industrial Sensor Calibration |
|---|---|
|
Use Scenario: Storing tariff tables, meter ID, and accumulated kWh values across power outages. IC Role / Device Role / Timing Role: Nonvolatile configuration and event-log storage with guaranteed 100-year data retention. Use Value: Eliminates need for battery-backed SRAM; withstands >1M write cycles during daily billing updates. |
Use Scenario: Holding factory-calibrated offset/gain coefficients for analog sensor front-ends. IC Role / Device Role / Timing Role: Persistent coefficient storage accessed at system boot before ADC initialization. Use Value: Enables zero-touch calibration; coefficients survive 10+ years in unpowered field deployments. |
| Embedded Firmware Parameter Backup | Medical Device Configuration Storage |
|
Use Scenario: Saving user-adjusted settings (e.g., display brightness, alarm thresholds) between reboots. IC Role / Device Role / Timing Role: Low-latency, byte-addressable parameter store accessible via standard I²C stack. Use Value: Supports <10 ms write time per 16-byte page; meets real-time UI responsiveness requirements. |
Use Scenario: Retaining device-specific safety parameters (e.g., dose limits, operational modes) after sterilization cycles. IC Role / Device Role / Timing Role: Tamper-resistant storage with WP pin tied to secure MCU GPIO for runtime lock control. Use Value: Meets IEC 62304 Class C software requirements for persistent configuration integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95160-DFMN6TP | 16 Kbit SPI interface, 1.8V–5.5V, 20 MHz max clock, 16-byte page write | Requires SPI host instead of I²C; no WP pin - write protection relies on software or external logic | Select when existing design uses SPI peripherals and board layout already accommodates SPI routing |
| BR24G16NUX-10 | 16 Kbit I²C, 1.6V–5.5V, 400 kHz @ 1.8V, A0–A2 address pins enabled | Supports up to 8 devices on same bus; lower 1.6V VCC min but lacks automotive qualification | Choose for multi-device I²C buses or when 1.6V operation is mandatory; verify WP implementation matches system security needs |
Compared with AT24C16A-10TI-1.8, M95160-DFMN6TP trades I²C compatibility for higher-speed SPI access and eliminates hardware write protection, while BR24G16NUX-10 extends bus scalability and voltage headroom at the cost of added address-pin routing complexity.
Availability
AT24C16A-10TI-1.8 is available at Aetrix Electronics and suitable for smart energy metering, industrial sensor calibration, and embedded firmware parameter backup requiring stable component supply across extended product lifecycles.
Supply support for AT24C16A-10TI-1.8 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 global semiconductor company specializing in microcontrollers, analog, FPGA, and memory solutions, with a focus on embedded control and connectivity.
The AT24C16A belongs to Microchip's legacy serial EEPROM product line, designed specifically for cost-sensitive, low-power industrial and consumer applications requiring reliable, pin-efficient nonvolatile storage.
FAQ
What is the maximum clock frequency supported by AT24C16A-10TI-1.8 at 1.8V?
The AT24C16A-10TI-1.8 supports a maximum I²C clock frequency of 100 kHz when operating at 1.8V. This is specified in the AC Characteristics table under "fSCL" for the 1.8V column. Higher frequencies (up to 400 kHz) require VCC ≥ 2.5V, which is not applicable to the -1.8 suffix variant.
Does AT24C16A-10TI-1.8 require external pull-up resistors on SDA and SCL lines?
Yes, AT24C16A-10TI-1.8 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; 4.7 kΩ is commonly used for 100 kHz operation at 1.8V.
Can multiple AT24C16A-10TI-1.8 devices share the same I²C bus?
No. The AT24C16A-10TI-1.8 has no functional A0–A1–A2 address pins (all are NC), resulting in a fixed 7-bit device address of 0b1010000 (0x50). Therefore, only one AT24C16A-10TI-1.8 can reside on a given I²C bus without address conflict.
What happens to the AT24C16A-10TI-1.8 when the WP pin is left floating?
The WP pin of AT24C16A-10TI-1.8 must not be left floating. Per the datasheet, it is internally undefined and may cause unpredictable write behavior. It must be actively driven either to GND (enabling writes) or VCC (disabling writes); a pull-down resistor (e.g., 10 kΩ) is recommended if hardware protection is not required.
Is AT24C16A-10TI-1.8 compatible with standard I²C protocol implementations?
Yes, AT24C16A-10TI-1.8 fully complies with the standard I²C bus specification, supporting START/STOP conditions, ACK/NACK handshaking, 7-bit addressing, and repeated START sequences. It operates as a standard slave device and integrates seamlessly with any I²C master (e.g., STM32, PIC, ESP32) using standard drivers.
AT24C16A-10TI-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 4.5 µs
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C16A-10TI-1.8 FAQ
1.How can I place an order for AT24C16A-10TI-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16A-10TI-1.8 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 AT24C16A-10TI-1.8 reliable?
The price and inventory of AT24C16A-10TI-1.8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT24C16A-10TI-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C16A-10TI-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16A-10TI-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16A-10TI-1.8?
AT24C16A-10TI-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16A-10TI-1.8 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 AT24C16A-10TI-1.8?
For technical support, including AT24C16A-10TI-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16A-10TI-1.8 requirements.
6.How does Aetrix verify that AT24C16A-10TI-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C16A-10TI-1.8 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 AT24C16A-10TI-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C16A-10TI-1.8?
All AT24C16A-10TI-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16A-10TI-1.8, 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 AT24C16A-10TI-1.8 part is unused and in its original packaging.
Return procedure for AT24C16A-10TI-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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