My Inquiry
My Account
Microchip Technology AT24C64-10TC-1.8
- Part No.:
- AT24C64-10TC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AT24C64-10TC-1.8.pdf
- Description:
- IC EEPROM 64KBIT I2C 8TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,314
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT24C64-10TC-1.8 from Microchip Technology (formerly Atmel) is a 64 Kbit (8192 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage operation down to 1.8 V, featuring 32-byte page write capability, hardware write protection via WP pin, and 100 kHz I²C bus compatibility at 1.8 V. It serves as nonvolatile configuration storage in battery-powered IoT sensors, portable medical devices, and energy-harvesting systems.
For engineers reviewing the AT24C64-10TC-1.8 datasheet, AT24C64-10TC-1.8 pinout, AT24C64-10TC-1.8 application, or AT24C64-10TC-1.8 equivalent, key selection criteria include 1.8 V minimum supply voltage, 10 ms max write cycle time, 0.1 µA standby current at 1.8 V, and TSSOP-8 package compatibility with space-constrained PCB layouts.
Technical Context
The AT24C64-10TC-1.8 implements a two-wire I²C interface with Schmitt-triggered, noise-filtered SDA and SCL inputs, supporting bidirectional data transfer and device addressing via A0–A2 pins. Its internal architecture organizes memory as 256 pages of 32 bytes each, enabling partial-page writes without erasing full pages.
Write operations are self-timed with a maximum 10 ms internal clear/write cycle; during this period, all inputs are disabled and acknowledge polling is required to verify completion. The WP pin provides hardware-level protection for the upper quadrant (16 Kbits) of memory when pulled high to VCC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 64 Kbit (8192 × 8 bits), sufficient for firmware parameter tables or calibration data in embedded controllers. |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interfacing with 1.8 V logic families and mixed-voltage systems without level shifters. |
| Standby Current | 0.1 µA at 1.8 V - extends battery life in always-on sensor nodes and wearable electronics. |
| I²C Clock Frequency | 100 kHz at 1.8 V - ensures reliable communication in low-power, noise-sensitive environments. |
| Write Cycle Time | 10 ms max - defines minimum interval between successive write commands; impacts real-time logging latency. |
| Endurance & Retention | 1 million write cycles / 100 years data retention - supports long-life industrial deployments without field replacement. |
| ESD Protection | >3000 V HBM - enhances robustness during handling and board assembly in uncontrolled environments. |
Pinout & Package
AT24C64-10TC-1.8 is housed in an 8-pin TSSOP (Thin Shrink Small Outline Package) with 0.65 mm pitch, measuring 3.0 mm × 4.4 mm - suitable for compact consumer and portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Device Address Inputs | Hardwired address bits enabling up to eight AT24C64-10TC-1.8 devices on a single I²C bus; float to logic low if unconnected. |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up resistor and wire-OR capability with other I²C peripherals. |
| SCL | Serial Clock Input | Positive-edge clock input for data-in; negative-edge sampling for data-out; synchronized with master controller. |
| WP | Write Protect Control | Active-high hardware lock: ties high to VCC to disable writes to upper 16 Kbits; grounded for full memory access. |
| VCC | Power Supply | 1.8–5.5 V input; decoupling capacitor (0.1 µF) required near pin for noise immunity during write cycles. |
| GND | Ground Reference | Common return path for VCC and I/O; must be low-impedance to minimize ground bounce during page writes. |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V Operation | Guaranteed functionality at 1.8 V supply enables integration into modern ultra-low-power microcontroller subsystems without voltage translation. |
| 32-Byte Page Write | Reduces I²C transaction overhead by allowing up to 32 bytes per write command, improving efficiency in burst configuration updates. |
| Schmitt Trigger Inputs | Suppresses noise-induced false starts/stops on SDA/SCL lines, critical for stable operation in electrically noisy industrial enclosures. |
| Hardware Write Protect | Prevents accidental overwrites of critical calibration or security data via dedicated WP pin-no firmware intervention required. |
| 100-Year Data Retention | Ensures persistent storage integrity across product lifetime in infrastructure monitoring and automotive black-box applications. |
Applications
| Smart Metering | Wearable Health Monitor |
|---|---|
Use Scenario: Storing tariff schedules, meter calibration constants, and tamper-event logs in electricity/water meters operating on lithium-thionyl chloride batteries. IC Role / Device Role / Timing Role: Nonvolatile configuration and event-log storage with guaranteed 100-year retention and 1.8 V wake-up capability. Use Value: Eliminates need for backup capacitors or supercapacitors due to ultra-low 0.1 µA standby current at 1.8 V. | Use Scenario: Saving patient-specific thresholds, sensor calibration offsets, and session history in Bluetooth-enabled ECG patches. IC Role / Device Role / Timing Role: Low-voltage EEPROM interfaced directly to 1.8 V BLE SoC for secure, persistent health data storage. Use Value: Enables full system operation at 1.8 V, reducing power conversion losses and extending single-charge battery life by >30%. |
| Industrial PLC I/O Module | Automotive Body Control Unit |
Use Scenario: Holding channel-specific gain/offset trim values and fault-history records in DIN-rail-mounted programmable logic controllers. IC Role / Device Role / Timing Role: Robust, noise-immune I²C EEPROM with Schmitt-triggered inputs and >3000 V ESD rating for factory-floor reliability. Use Value: Survives repeated hot-plug events and EMI exposure without data corruption or latch-up. | Use Scenario: Storing seat-position memory, mirror presets, and lighting profiles in 12 V automotive body control modules with local 1.8 V LDO rails. IC Role / Device Role / Timing Role: Automotive-grade EEPROM (qualified per AEC-Q100 stress tests) with hardware WP for safety-critical settings. Use Value: Prevents unauthorized or erroneous overwrite of driver preference data during firmware updates or CAN bus activity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| M95640-DRMN6TP/K | 400 kHz SPI interface, 1.8–5.5 V, 64 Kbit, SO8 package; no WP pin; uses W pin instead of dedicated WP. | Requires SPI host interface; lacks hardware write protect for upper quadrant; higher pin count (8 vs. 8 but different pinout). | Select when existing design uses SPI and requires faster 400 kHz writes; verify layout compatibility and WP functionality replacement in firmware. |
| BR24G64FJ-WE2 | I²C interface, 1.7–5.5 V, 64 Kbit, TSSOP8; 1 µA standby at 1.8 V (vs. 0.1 µA); no dedicated WP pin - uses software lock. | Lower standby current tolerance may impact multi-year battery life; software-based protection less robust against reset-induced corruption. | Choose for cost-sensitive consumer applications where 1 µA standby is acceptable and firmware-controlled lock suffices. |
Compared with M95640-DRMN6TP/K and BR24G64FJ-WE2, the AT24C64-10TC-1.8 uniquely delivers 0.1 µA standby current at 1.8 V, hardware WP pin for quadrant-level protection, and verified 100 kHz I²C timing - making it optimal for battery-critical, safety-aware, and noise-prone deployments.
Availability
AT24C64-10TC-1.8 is available at Aetrix Electronics and suitable for smart metering, wearable health monitors, industrial PLC I/O modules, and automotive body control units requiring stable component supply across extended temperature and low-voltage operating conditions.
Supply support for AT24C64-10TC-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 components, and memory solutions, with a focus on reliability, longevity, and embedded system integration.
The AT24C64-10TC-1.8 belongs to Microchip's legacy AT24Cxx serial EEPROM family, designed specifically for low-power, low-voltage nonvolatile data storage in resource-constrained embedded systems across industrial, automotive, and consumer markets.
FAQ
What is the minimum operating voltage for the AT24C64-10TC-1.8?
The AT24C64-10TC-1.8 operates down to 1.8 V, as confirmed by its "-1.8" suffix and DC characteristics table specifying ISB1 = 0.1 µA at VCC = 1.8 V. This allows direct connection to 1.8 V logic domains without level-shifting circuitry, reducing BOM count and board area in portable electronics.
Does the AT24C64-10TC-1.8 support page write operations?
Yes, the AT24C64-10TC-1.8 supports 32-byte page write mode, permitting up to 32 bytes to be written in a single I²C transaction. This capability is explicitly documented in the Features section and Memory Organization chapter, reducing bus overhead versus byte-by-byte writes and improving firmware update efficiency.
What is the function of the WP pin on the AT24C64-10TC-1.8?
The WP (Write Protect) pin on the AT24C64-10TC-1.8 provides hardware-level protection: when tied to VCC, it inhibits writes to the upper quadrant (16 Kbits) of memory; when grounded, full memory access is enabled. This behavior is defined in the Pin Description and Device Addressing sections and is independent of firmware control.
Is the AT24C64-10TC-1.8 compatible with standard I²C bus speeds?
The AT24C64-10TC-1.8 supports 100 kHz I²C communication at 1.8 V, as specified in the AC Characteristics table. While 400 kHz operation is supported at 5 V, the 1.8 V variant is rated only for 100 kHz - a critical constraint for timing-critical firmware implementations using this specific part number.
What package type does the AT24C64-10TC-1.8 use?
The AT24C64-10TC-1.8 uses an 8-pin TSSOP (Thin Shrink Small Outline Package), identified by the "T" in its ordering code and detailed in the Packaging Information section. Its dimensions are 3.0 mm × 4.4 mm with 0.65 mm lead pitch, making it suitable for high-density PCB layouts in space-constrained applications.
AT24C64-10TC-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:
- 64Kbit
- Memory Organization:
- 8K x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 1.8V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TSSOP
AT24C64-10TC-1.8 FAQ
1.How can I place an order for AT24C64-10TC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C64-10TC-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 AT24C64-10TC-1.8 reliable?
The price and inventory of AT24C64-10TC-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 AT24C64-10TC-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C64-10TC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C64-10TC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C64-10TC-1.8?
AT24C64-10TC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C64-10TC-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 AT24C64-10TC-1.8?
For technical support, including AT24C64-10TC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C64-10TC-1.8 requirements.
6.How does Aetrix verify that AT24C64-10TC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C64-10TC-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 AT24C64-10TC-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C64-10TC-1.8?
All AT24C64-10TC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C64-10TC-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 AT24C64-10TC-1.8 part is unused and in its original packaging.
Return procedure for AT24C64-10TC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C64-10TC-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…
