My Inquiry
My Account
Microchip Technology AT24C16AN-10SU-1.8
- Part No.:
- AT24C16AN-10SU-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C16AN-10SU-1.8.pdf
- Description:
- IC EEPROM 16KBIT I2C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,714
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT24C16AN-10SU-1.8 from Microchip Technology is a 16-Kbit (2048 × 8) two-wire serial EEPROM optimized for low-voltage embedded systems, supporting 1.8V to 5.5V operation, 100 kHz I²C clock rate at 1.8V, and hardware write protection via the WP pin. It delivers 1 million write cycles and 100-year data retention in an 8-lead JEDEC SOIC package, used in industrial sensor calibration storage and firmware parameter backup.
For engineers reviewing the AT24C16AN-10SU-1.8 datasheet, AT24C16AN-10SU-1.8 pinout, AT24C16AN-10SU-1.8 application, or AT24C16AN-10SU-1.8 equivalent, key selection criteria include 1.8V minimum supply compatibility, 16-byte page write capability, WP pin-based hardware lock, 128-page memory architecture, and SOIC-8 footprint suitability for space-constrained PCBs.
Technical Context
The AT24C16AN-10SU-1.8 implements a standard I²C-compatible two-wire interface with open-drain SDA and edge-triggered SCL, supporting bidirectional data transfer and acknowledge polling during internal write cycles. Its address pins A0–A2 are NC (no-connect), limiting bus addressing to a single device per segment.
Internally organized as 128 pages of 16 bytes each, it uses an 11-bit word address for random access and supports byte writes, 16-byte page writes, and sequential reads with automatic address roll-over. Schmitt-trigger inputs and noise filtering ensure robust operation in electrically noisy environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8 bits), enabling storage of configuration tables or calibration coefficients for mid-complexity embedded devices. |
| Supply Voltage Range | 1.8V to 5.5V - supports direct interfacing with 1.8V logic families and mixed-voltage systems without level shifters. |
| I²C Clock Frequency | 100 kHz at 1.8V - ensures reliable timing margin in low-power, battery-operated applications where higher speeds are unnecessary. |
| Write Cycle Time | 5 ms max - defines minimum delay between write commands; impacts firmware update latency and real-time logging responsiveness. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - qualifies for long-life industrial deployments requiring infrequent but critical nonvolatile updates. |
| Page Write Capacity | 16-byte pages - reduces I²C transaction count when updating multi-byte records (e.g., sensor offset vectors), improving bus efficiency. |
| Write Protect Function | Hardware-enabled via WP pin tied to VCC - prevents accidental overwrites during power-up/down or firmware glitches without software intervention. |
Pinout & Package
AT24C16AN-10SU-1.8 is housed in an 8-lead JEDEC SOIC (8S1) package, 0.150" wide, RoHS-compliant and green-marked ("U"). Pin 1 is marked with a notch or dot; leads are gull-wing shaped with 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0, A1, A2 | Device Address Inputs | No-connect (NC) for AT24C16A - eliminates external pull-up/down resistors and simplifies bus topology to one device per I²C segment. |
| SDA | Serial Data I/O | Open-drain bidirectional line - requires external pull-up resistor; supports wire-OR with other I²C devices on same bus. |
| SCL | Serial Clock Input | Positive-edge clocked input - synchronizes all data transfers; must be driven by master with defined rise/fall time compliance. |
| WP | Write Protect | Active-high hardware lock - ties to VCC to disable all writes; grounded for normal read/write operation. |
| GND | Ground Reference | System ground return path - must be low-impedance and shared with I²C master to prevent communication errors. |
| VCC | Power Supply | 1.8V–5.5V input - decoupling capacitor (0.1 µF ceramic) required within 10 mm for stable low-noise operation. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8V Operation Support | Enables direct integration with ultra-low-power microcontrollers (e.g., ARM Cortex-M0+ at 1.8V core voltage) without voltage translation. |
| Schmitt Trigger Inputs | Suppresses noise-induced false clock/data transitions in industrial environments with EMI or long trace routing. |
| 16-Byte Page Writes | Reduces I²C overhead by up to 94% vs. byte-by-byte writes when storing 16-byte structures like CAN message buffers or PID tuning sets. |
| Self-Timed Write Cycle | Eliminates need for firmware wait loops - host can poll ACK after STOP to detect completion, freeing CPU for concurrent tasks. |
| Industrial Temp Range | –40°C to +85°C operation - validated for deployment in automotive body control modules and factory automation sensors. |
Applications
| Smart Meter Calibration Storage | Industrial PLC Configuration Backup |
|---|---|
Use Scenario: Storing meter-specific calibration coefficients and tariff tables that persist across power loss. IC Role / Device Role / Timing Role: Nonvolatile parameter store accessed via I²C during boot and field updates. Use Value: 100-year retention ensures calibration integrity over full product lifetime without battery-backed SRAM. |
Use Scenario: Holding user-defined I/O mapping, ladder logic parameters, and alarm thresholds in programmable logic controllers. IC Role / Device Role / Timing Role: Firmware-configurable memory mapped to controller's peripheral register space via I²C bridge. Use Value: Hardware WP pin prevents corruption during brown-out events or firmware crashes during configuration writes. |
| Medical Sensor Module Settings | Automotive Body Control Unit NVM |
Use Scenario: Saving patient-specific sensor gain/offset values and diagnostic history in portable ECG or pulse oximeter modules. IC Role / Device Role / Timing Role: Low-power serial EEPROM interfaced to ultra-low-power MCU in sleep mode. Use Value: 1.8V operation allows direct connection to MCU's 1.8V I/O rail, eliminating level-shifter components and BOM cost. |
Use Scenario: Storing door lock actuator profiles, mirror position presets, and lighting dimming curves in vehicle body computers. IC Role / Device Role / Timing Role: Automotive-grade NVM for user preference persistence across ignition cycles. Use Value: 1M write endurance supports daily reprogramming over 27 years - exceeding OEM 15-year lifecycle requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C16B-SSHM-T | Successor part with enhanced ESD rating (4 kV HBM), same 16Kbit density and SOIC-8 package, but rated for 1.7V–5.5V. | Preferred for new designs targeting AEC-Q200 stress testing or high-ESD environments (e.g., handheld medical tools). | Select AT24C16B-SSHM-T when qualifying for automotive or medical certifications; AT24C16AN-10SU-1.8 remains valid for legacy industrial designs. |
| M95128-WMN6TP | 128 Kbit SPI EEPROM (not I²C), 2.5–5.5V supply, 20 MHz SPI interface, SOIC-8 package. | Requires SPI-capable MCU and different driver stack; offers higher density and faster writes but lacks WP pin simplicity. | Choose M95128-WMN6TP only if system already uses SPI peripherals and needs >16Kbit capacity; not drop-in compatible due to protocol and voltage range mismatch. |
Compared with AT24C16B-SSHM-T, the AT24C16AN-10SU-1.8 lacks updated ESD specs but retains identical pinout and 1.8V functionality; versus M95128-WMN6TP, it trades SPI speed and density for I²C simplicity and lower-voltage support - making it optimal for cost-sensitive, low-power, I²C-native systems.
Availability
AT24C16AN-10SU-1.8 is available at Aetrix Electronics and suitable for industrial sensor nodes, medical diagnostics equipment, and automotive body electronics requiring stable component supply across extended production lifecycles.
Supply support for AT24C16AN-10SU-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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions for industrial, automotive, and consumer markets.
The AT24CxxA family was designed to deliver reliable, low-power serial EEPROM for embedded systems needing simple, standardized I²C-based nonvolatile storage with minimal external components.
FAQ
What is the maximum I²C clock frequency supported by AT24C16AN-10SU-1.8 at 1.8V?
The AT24C16AN-10SU-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 1.8-volt column. At higher supply voltages (2.7V or 5V), the device supports up to 400 kHz, but the 100 kHz limit at 1.8V ensures timing margin and noise immunity in low-power systems where AT24C16AN-10SU-1.8 is typically deployed.
Is AT24C16AN-10SU-1.8 pin-compatible with AT24C16B-SSHM-T?
Yes, AT24C16AN-10SU-1.8 is pin-compatible with AT24C16B-SSHM-T - both use identical 8-lead SOIC packaging and share the same pinout (A0–A2 NC, SDA, SCL, WP, GND, VCC). However, AT24C16B-SSHM-T is the recommended successor with improved ESD performance and extended 1.7V–5.5V operation; AT24C16AN-10SU-1.8 remains functional in existing designs but is not recommended for new designs per Microchip documentation.
Can AT24C16AN-10SU-1.8 perform partial page writes?
Yes, AT24C16AN-10SU-1.8 supports partial page writes: up to 16 bytes can be written in a single page-write cycle, and fewer than 16 bytes may be transmitted before issuing the STOP condition. The internal address counter increments automatically, and writes wrap within the current 16-byte page boundary - enabling efficient updates of sub-page data structures without erasing adjacent bytes.
What is the function of the A0, A1, and A2 pins on AT24C16AN-10SU-1.8?
On AT24C16AN-10SU-1.8, the A0, A1, and A2 pins are no-connect (NC) terminals - they serve no device-addressing function and may be left unconnected or tied to GND/VCC without affecting operation. This differs from smaller-density variants (e.g., AT24C02) and reflects the AT24C16A's single-device-per-bus architecture, where the upper three bits of the device address are used for memory page selection instead of hardware addressing.
Does AT24C16AN-10SU-1.8 require an external pull-up resistor on the SDA line?
Yes, AT24C16AN-10SU-1.8 requires an external pull-up resistor on the SDA line because its SDA pin is open-drain. A typical value is 4.7 kΩ to VCC, selected based on bus capacitance and desired rise time. The same applies to SCL; both lines must be pulled up to ensure proper I²C signal levels and ACK/NACK generation - omission causes communication failure or intermittent timeouts.
AT24C16AN-10SU-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-SOIC
AT24C16AN-10SU-1.8 FAQ
1.How can I place an order for AT24C16AN-10SU-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C16AN-10SU-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 AT24C16AN-10SU-1.8 reliable?
The price and inventory of AT24C16AN-10SU-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 AT24C16AN-10SU-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C16AN-10SU-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C16AN-10SU-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C16AN-10SU-1.8?
AT24C16AN-10SU-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C16AN-10SU-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 AT24C16AN-10SU-1.8?
For technical support, including AT24C16AN-10SU-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C16AN-10SU-1.8 requirements.
6.How does Aetrix verify that AT24C16AN-10SU-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C16AN-10SU-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 AT24C16AN-10SU-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C16AN-10SU-1.8?
All AT24C16AN-10SU-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C16AN-10SU-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 AT24C16AN-10SU-1.8 part is unused and in its original packaging.
Return procedure for AT24C16AN-10SU-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C16AN-10SU-1.8 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…
