My Inquiry
My Account
Microchip Technology AT24C04N-10SC-1.8
- Part No.:
- AT24C04N-10SC-1.8
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AT24C04N-10SC-1.8.pdf
- Description:
- IC EEPROM 4KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,543
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AT24C04N-10SC-1.8 from Microchip Technology (formerly Atmel) is a 4-kbit (512 × 8) I²C-compatible serial EEPROM optimized for ultra-low-voltage embedded systems. It operates from 1.8 V to 5.5 V, supports 100 kHz I²C bus timing at 1.8 V, features hardware write protection via the WP pin, and delivers 1 million write cycles with 100-year data retention - ideal for battery-powered sensor nodes and portable medical devices.
For engineers reviewing the AT24C04N-10SC-1.8 datasheet, AT24C04N-10SC-1.8 pinout, AT24C04N-10SC-1.8 application, or AT24C04N-10SC-1.8 equivalent, key selection criteria include its 1.8 V minimum supply, 16-byte page write capability, SOIC-8 package footprint, and compatibility with microcontrollers using standard two-wire I²C interfaces in space-constrained, low-power designs.
Technical Context
The AT24C04N-10SC-1.8 implements a true two-wire (I²C) serial interface with Schmitt-triggered, noise-filtered SDA and SCL inputs. Its internal architecture organizes 4096 bits into 32 pages of 16 bytes each, requiring a 9-bit word address for random access.
Device addressing uses A2 and A1 pins (A0 is NC), enabling up to four AT24C04N-10SC-1.8 devices on a single I²C bus. Write protection is implemented via a dedicated WP pin that disables all write operations when pulled high, independent of software control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 kbit (512 × 8 bits), sufficient for calibration tables, device configuration, or firmware patch storage in compact systems |
| Supply Voltage Range | 1.8 V to 5.5 V - enables direct interfacing with 1.8 V logic families and eliminates level-shifting in modern ultra-low-power MCUs |
| I²C Clock Frequency | 100 kHz maximum at 1.8 V - ensures reliable communication under low-voltage conditions without timing margin violations |
| Page Write Capacity | 16-byte page writes - reduces I²C transaction overhead by up to 15× versus byte-wise writes for bulk data updates |
| Write Endurance | 1 million write cycles - supports frequent logging or parameter adjustment over product lifetime |
| Data Retention | 100 years at +25°C - guarantees nonvolatile storage integrity across extended deployment periods without refresh |
| Standby Current | 3 µA max at 1.8 V - minimizes quiescent power draw in always-on or sleep-mode applications |
Pinout & Package
AT24C04N-10SC-1.8 is housed in an 8-lead JEDEC-standard SOIC package (8S1), measuring 4.9 mm × 3.9 mm × 1.75 mm, with gull-wing leads compatible with standard reflow soldering processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | No Connect | Not used in AT24C04; must be left unconnected per datasheet - floating or tied high/low risks undefined behavior |
| A1 | Device Address Input | Hardwired to set one of four possible I²C slave addresses (0x50–0x53) alongside A2 |
| A2 | Device Address Input | Hardwired to select among four AT24C04N-10SC-1.8 devices on same bus; A0 unused |
| GND | Ground Reference | Return path for VCC and I/O signals; requires low-impedance connection to system ground plane |
| VCC | Power Supply | Accepts 1.8–5.5 V; decoupling capacitor (0.1 µF) required within 5 mm of pin for noise immunity |
| WP | Write Protect Control | Active-high hardware lock: tied to VCC blocks all writes; tied to GND enables full read/write access |
| SCL | I²C Clock Input | Open-drain input with Schmitt trigger; requires external pull-up resistor (typically 2.2–10 kΩ) |
| SDA | I²C Data I/O | Bi-directional open-drain line; shares pull-up with SCL; supports multi-master arbitration |
Key Features
| Feature | Design Value |
|---|---|
| 1.8 V operation support | Enables direct integration with 1.8 V microcontrollers and SoCs without voltage translation circuitry |
| Hardware write protection (WP pin) | Prevents accidental or malicious firmware/configuration corruption during power transitions or software faults |
| 16-byte page write mode | Reduces I²C bus occupancy and host CPU overhead for sequential data writes compared to byte-by-byte programming |
| Schmitt-triggered inputs | Rejects sub-microsecond noise spikes on SDA/SCL lines, improving robustness in electrically noisy industrial environments |
| 100-year data retention | Eliminates need for periodic refresh or backup power in long-life deployments such as utility meters or infrastructure sensors |
Applications
| Smart Sensor Calibration | IoT Edge Device Configuration |
|---|---|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and temperature compensation parameters in environmental monitoring nodes. IC Role / Device Role / Timing Role: Nonvolatile configuration storage accessed once at boot; no real-time timing constraints. Use Value: Enables plug-and-play accuracy without host MCU intervention; retains values across cold starts and battery replacement. |
Use Scenario: Holding network credentials (Wi-Fi SSID/password), device identity keys, and OTA update metadata in battery-operated gateways. IC Role / Device Role / Timing Role: Secure, infrequently updated persistent memory for security-critical settings. Use Value: WP pin prevents overwrite during firmware updates; 1.8 V operation extends battery life in sleep-dominated duty cycles. |
| Medical Wearable Settings | Industrial PLC Parameter Storage |
Use Scenario: Saving user-adjusted therapy parameters (e.g., dosage, alarm thresholds) in portable insulin pumps or pulse oximeters. IC Role / Device Role / Timing Role: Human-interface-configurable persistent memory with guaranteed write integrity. Use Value: 1M endurance supports daily adjustments over 10+ years; 100-year retention ensures data survival beyond device EOL. |
Use Scenario: Retaining machine-specific operational limits, calibration offsets, and maintenance logs in programmable logic controllers. IC Role / Device Role / Timing Role: Field-service-accessible nonvolatile storage for mission-critical setup data. Use Value: SOIC-8 footprint fits legacy PCB layouts; WP pin allows safe field updates without risk of corrupting base configuration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C04D-SSHM-T | Same 4-kbit capacity and 1.8 V operation, but in 8-lead TSSOP (8T) package; slightly smaller footprint (3.0 × 4.4 mm vs. 3.9 × 4.9 mm) | TSSOP offers higher board density; less suitable for through-hole prototyping or wave-soldered assemblies | Select when PCB area is constrained and reflow-only assembly is used. |
| M24C04-RMN6TP | STMicroelectronics 4-kbit EEPROM; supports 1.7–5.5 V range and 400 kHz I²C at ≥2.5 V, but only 100 kHz at 1.8 V - identical timing to AT24C04N-10SC-1.8 | Qualified to AEC-Q100 Grade 2 (−40°C to +105°C); broader temp range than AT24C04N-10SC-1.8's commercial grade (0°C to 70°C) | Select for automotive or extended-temperature industrial use where qualification matters. |
Compared with AT24C04D-SSHM-T and M24C04-RMN6TP, the AT24C04N-10SC-1.8 provides identical 1.8 V / 100 kHz performance and SOIC-8 compatibility, making it optimal for cost-sensitive, space-tolerant commercial designs requiring proven Atmel/Microchip reliability and broad design-in history.
Availability
AT24C04N-10SC-1.8 is available at Aetrix Electronics and suitable for smart sensor calibration, IoT edge device configuration, and medical wearable settings requiring stable component supply across production lifecycles.
Supply support for AT24C04N-10SC-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 acquired Atmel in 2016 and maintains full backward compatibility and technical support for the AT24Cxx EEPROM family.
The AT24C04N-10SC-1.8 belongs to Microchip's serial EEPROM product line, designed specifically for low-voltage, low-power embedded systems needing reliable, byte-addressable nonvolatile storage with minimal board footprint.
FAQ
What is the maximum I²C clock frequency supported by the AT24C04N-10SC-1.8 at 1.8 V?
The AT24C04N-10SC-1.8 supports a maximum I²C clock frequency of 100 kHz when operating at 1.8 V, as specified in its AC characteristics table. This timing is validated across the full commercial temperature range (0°C to 70°C) and ensures robust signal integrity with standard pull-up resistors and bus capacitance up to 400 pF. The AT24C04N-10SC-1.8 does not support 400 kHz operation below 2.5 V.
How many AT24C04N-10SC-1.8 devices can share the same I²C bus?
Up to four AT24C04N-10SC-1.8 devices can operate on a single I²C bus, enabled by hardwiring the A2 and A1 pins to unique combinations (00, 01, 10, 11); A0 is internally disconnected and must remain unconnected. Each combination yields a distinct 7-bit slave address (0x50–0x53), allowing independent addressing without software arbitration.
Does the AT24C04N-10SC-1.8 require external pull-up resistors on SDA and SCL?
Yes, the AT24C04N-10SC-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; for 100 kHz operation at 1.8 V, 4.7 kΩ is commonly used. Pull-ups must connect to the same VCC rail as the AT24C04N-10SC-1.8.
What happens to the AT24C04N-10SC-1.8 when the WP pin is left floating?
The WP pin of the AT24C04N-10SC-1.8 must never be left floating: it is an active-high digital input with no internal pull-up or pull-down. A floating WP pin may cause unpredictable write-enable behavior - potentially allowing unintended writes or blocking all writes. Per the datasheet, WP must be explicitly tied to either GND (enabling writes) or VCC (disabling writes) using a direct connection or controlled GPIO.
Is the AT24C04N-10SC-1.8 pin-compatible with other members of the AT24Cxx family in SOIC-8 packages?
Yes, the AT24C04N-10SC-1.8 shares identical pinout, package dimensions, and I²C interface signaling with AT24C01A-10SC-1.8, AT24C02N-10SC-1.8, AT24C08N-10SC-1.8, and AT24C16N-10SC-1.8 - all use the same 8-lead SOIC (8S1) footprint and pin functions (A0–A2, GND, VCC, WP, SCL, SDA). However, memory size, page length, and device addressing differ, so firmware must match the specific part.
AT24C04N-10SC-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:
- 4Kbit
- Memory Organization:
- 512 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- 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-SOIC
AT24C04N-10SC-1.8 FAQ
1.How can I place an order for AT24C04N-10SC-1.8 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT24C04N-10SC-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 AT24C04N-10SC-1.8 reliable?
The price and inventory of AT24C04N-10SC-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 AT24C04N-10SC-1.8 is usually 5 days.
3.What payment methods are accepted for AT24C04N-10SC-1.8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT24C04N-10SC-1.8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT24C04N-10SC-1.8?
AT24C04N-10SC-1.8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT24C04N-10SC-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 AT24C04N-10SC-1.8?
For technical support, including AT24C04N-10SC-1.8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT24C04N-10SC-1.8 requirements.
6.How does Aetrix verify that AT24C04N-10SC-1.8 is sourced from the original manufacturer or authorized distributors?
All AT24C04N-10SC-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 AT24C04N-10SC-1.8 meets industry standards.
7.What is the process for return or replacement of AT24C04N-10SC-1.8?
All AT24C04N-10SC-1.8 units undergo pre-shipment inspection (PSI). If there is an issue with AT24C04N-10SC-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 AT24C04N-10SC-1.8 part is unused and in its original packaging.
Return procedure for AT24C04N-10SC-1.8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT24C04N-10SC-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…
