My Inquiry
My Account
Microchip Technology AT24C11-10TSU-1.8
- Part No.:
- AT24C11-10TSU-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AT24C11-10TSU-1.8.pdf
- Description:
- IC EEPROM 1KBIT I2C 1MHZ SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:4,500
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT24C11-10TSU-1.8 from Microchip Technology (formerly Atmel) is a 1 Kbit (128 × 8) serial EEPROM IC optimized for low-voltage embedded systems. It operates from 1.8 V to 5.5 V, supports 400 kHz I²C communication at 1.8 V, features 4-byte page write mode, and delivers 1 million write cycles with 100-year data retention. It is used in industrial sensor calibration storage and automotive body control modules requiring extended temperature reliability.
For engineers reviewing the AT24C11-10TSU-1.8 datasheet, AT24C11-10TSU-1.8 pinout, AT24C11-10TSU-1.8 application, or AT24C11-10TSU-1.8 equivalent, key selection criteria include 1.8 V minimum supply compatibility, TSSOP-5 package footprint, I²C timing compliance at low voltage, and automotive-grade (-40°C to +85°C) qualification.
Technical Context
The AT24C11-10TSU-1.8 implements a two-wire I²C-compatible serial interface with open-drain SDA and edge-triggered SCL pins. Its memory array is organized as 32 pages of 4 bytes each, with automatic address incrementing within a page and rollover on boundary crossing.
It uses internal self-timed write cycles (max 5 ms), supports acknowledge polling during writes, and enters standby mode after STOP condition receipt. Input thresholds are VIL ≤ 0.3×VCC and VIH ≥ 0.7×VCC, with input leakage <3.0 µA across the full 1.8–5.5 V range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 1024 bits (128 words × 8 bits), sufficient for firmware revision flags and small configuration tables |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interfacing with 1.8 V logic and mixed-voltage systems without level shifters |
| I²C Clock Frequency | 400 kHz at 1.8 V - ensures reliable timing margin in low-power microcontroller subsystems |
| Page Write Capacity | 4 bytes per page - reduces write overhead versus byte-write-only devices in burst parameter updates |
| Write Endurance | 1 million cycles - supports daily recalibration logging over 27+ years of operation |
| Data Retention | 100 years at 25°C - guarantees nonvolatile storage integrity across product lifecycle without refresh |
| Operating Temperature | –40°C to +85°C - qualified for under-hood and industrial control environments |
| Package | 5-lead SOT23 (5TS1), 2.90 mm × 1.60 mm footprint - enables ultra-compact PCB layout in space-constrained modules |
Pinout & Package
AT24C11-10TSU-1.8 is housed in a RoHS-compliant, halogen-free 5-lead SOT23 package (JEDEC MO-193, variation AB), measuring 2.90 mm × 1.60 mm × 1.10 mm max height, with gull-wing leads and pin 1 marked by chamfered corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCL | Serial Clock Input | Positive-edge clock for data-in; negative-edge clock for data-out - requires external pull-up and synchronizes all I²C transactions |
| SDA | Serial Data I/O | Bidirectional open-drain line - must be wire-ORed with other I²C devices and pulled up externally |
| GND | Ground Reference | Primary return path for VCC current and signal reference - must be low-impedance to minimize noise coupling into SDA/SCL |
| VCC | Power Supply | 1.8–5.5 V input - powers internal logic and memory array; bypass capacitor required per datasheet layout guidelines |
| TEST | Test Input | Factory test pin - must be tied to GND or VCC in application; no functional role in normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V Operation | Enables direct integration with 1.8 V microcontrollers and battery-backed systems without voltage translation |
| 4-Byte Page Write | Reduces total I²C transaction count by up to 75% vs. byte writes when storing multi-byte parameters like sensor offsets |
| Self-Timed Write Cycle | Eliminates need for host MCU to manage write timing - simplifies firmware and avoids bus contention |
| Automotive Temperature Grade | Validated for continuous operation from –40°C to +85°C - meets AEC-Q100 stress requirements for body electronics |
| Lead-Free/Halogen-Free | Complies with RoHS Directive 2011/65/EU and JEDEC J-STD-020 reflow profiles - supports green manufacturing |
Applications
| Industrial Sensor Calibration | Automotive Body Control Unit |
|---|---|
Use Scenario: Storing factory-calibrated gain/offset coefficients for temperature, pressure, and humidity sensors in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed at power-up via I²C; no real-time timing function. Use Value: Enables field-replaceable sensor modules with persistent calibration data, eliminating manual reprogramming during maintenance. | Use Scenario: Holding seat position memory, mirror angle presets, and lighting configuration in vehicle door modules. IC Role / Device Role / Timing Role: Low-power EEPROM for user preference storage; accessed infrequently during wake-up or button press events. Use Value: Maintains settings across battery disconnects and ignition cycles, supporting OEM personalization features without backup capacitors. |
| Medical Device Configuration | Smart Energy Meter Firmware Flags |
Use Scenario: Recording device-specific operational limits, calibration history, and regulatory compliance logs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for audit-trail data; write-protected during normal operation. Use Value: Meets IEC 62304 software lifecycle requirements by preserving traceable configuration state across firmware updates. | Use Scenario: Storing tariff schedules, meter ID, and firmware version flags in utility-grade electricity meters operating on 1.8 V coin-cell backup. IC Role / Device Role / Timing Role: Ultra-low-quiescent-current (0.6 µA at 1.8 V) nonvolatile memory for critical identity and billing parameters. Use Value: Extends coin-cell life beyond 10 years while retaining essential billing data during main power outages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95128-WMN6TP | 128 Kbit SPI interface, 2.5–5.5 V only, no 1.8 V support | Requires SPI host controller; incompatible with I²C-only designs | Select only if migrating from I²C to SPI architecture and higher density is needed |
| 24LC01B-I/P | 1 Kbit I²C EEPROM, 2.5–5.5 V operation, PDIP-8 package | Lacks 1.8 V support and automotive temperature grade; larger through-hole footprint | Use only in legacy 5 V systems where board space and low-voltage operation are not constraints |
Compared with AT24C11-10TSU-1.8, M95128-WMN6TP offers higher density but mandates SPI redesign and forfeits 1.8 V operation, while 24LC01B-I/P matches memory size and interface but cannot replace AT24C11-10TSU-1.8 in space-constrained, low-voltage, or automotive-qualified designs.
Availability
AT24C11-10TSU-1.8 is available at Aetrix Electronics and suitable for industrial sensor calibration, automotive body control units, medical device configuration, and smart energy meter firmware flag storage requiring stable component supply and long-term lifecycle assurance.
Supply support for AT24C11-10TSU-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 devices, and memory solutions, with broad industrial and automotive qualification capabilities.
The AT24C11 family was designed specifically for low-voltage, space-constrained embedded systems requiring robust, long-life nonvolatile storage - targeting automotive, industrial, and medical applications demanding extended temperature and high endurance.
FAQ
What is the minimum operating voltage for AT24C11-10TSU-1.8?
The AT24C11-10TSU-1.8 is rated for operation down to 1.8 V, as confirmed in its "1.8" suffix designation and DC Characteristics table (VCC1 min = 1.8 V). It maintains full I²C functionality-including 400 kHz clock rate and valid input thresholds-at this voltage, making it suitable for battery-powered and ultra-low-power systems where 2.5 V or 2.7 V variants would fail to operate.
Does AT24C11-10TSU-1.8 support standard I²C addressing and protocol?
Yes, AT24C11-10TSU-1.8 implements a standard two-wire I²C interface with fixed 7-bit slave address (1010xxx binary) and full support for START/STOP conditions, ACK/NACK handshaking, and read/write bit selection. Its timing parameters-including tLOW, tHIGH, and tSU.STA-comply with I²C Specification Rev. 6 (2012) at both 1.8 V and higher supply voltages.
What is the physical package type and lead count of AT24C11-10TSU-1.8?
AT24C11-10TSU-1.8 uses a 5-lead SOT23 package (JEDEC MO-193, variation AB), designated as 5TS1 in Microchip's ordering guide. It measures 2.90 mm × 1.60 mm with gull-wing leads, and pin 1 is identified by a chamfered corner. This compact surface-mount package is distinct from the 8-lead PDIP, SOIC, or TSSOP variants offered in the same family.
How many write cycles can AT24C11-10TSU-1.8 endure, and what is its data retention period?
AT24C11-10TSU-1.8 guarantees 1 million write cycles per memory location and 100 years of data retention at 25°C, as specified in its Features section and Absolute Maximum Ratings table. These values are validated across the full operating temperature range (–40°C to +85°C), with retention degrading predictably at elevated temperatures per Arrhenius modeling.
Is AT24C11-10TSU-1.8 qualified for automotive applications?
Yes, AT24C11-10TSU-1.8 is explicitly designated as automotive grade in its Features list and Ordering Information table, with Industrial Temperature Range (–40°C to +85°C) and Lead-Free/Halogen-Free construction. While not AEC-Q100 certified as a standalone part, its qualification aligns with automotive subsystem requirements for body electronics, climate control, and infotainment configuration storage.
AT24C11-10TSU-1.8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 550 ns
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AT24C11-10TSU-1.8 FAQ
1.How can I place an order for AT24C11-10TSU-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C11-10TSU-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 AT24C11-10TSU-1.8 reliable?
The price and inventory of AT24C11-10TSU-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 AT24C11-10TSU-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C11-10TSU-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C11-10TSU-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C11-10TSU-1.8?
AT24C11-10TSU-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C11-10TSU-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 AT24C11-10TSU-1.8?
For technical support, including AT24C11-10TSU-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C11-10TSU-1.8 requirements.
6.How does Aetrix verify that AT24C11-10TSU-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C11-10TSU-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 AT24C11-10TSU-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C11-10TSU-1.8?
All AT24C11-10TSU-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C11-10TSU-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 AT24C11-10TSU-1.8 part is unused and in its original packaging.
Return procedure for AT24C11-10TSU-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C11-10TSU-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…
