My Inquiry
My Account
Microchip Technology 24FC04HT-I/SN
- Part No.:
- 24FC04HT-I/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24FC04HT-I/SN.pdf
- Description:
- IC EEPROM 4KBIT I2C 1MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,520
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
24FC04HT-I/SN from Microchip Technology Inc. is a 4-Kbit I²C-compatible serial EEPROM organized as two 256 × 8-bit blocks, operating from 1.7V to 5.5V with 1 MHz clock support, 16-byte page write buffer, and hardware half-array write-protection (100h–1FFh). It delivers ≤1 µA standby current and >1 million erase/write cycles for embedded system configuration storage.
For engineers reviewing the 24FC04HT-I/SN datasheet, 24FC04HT-I/SN pinout, 24FC04HT-I/SN application, or 24FC04HT-I/SN equivalent, key selection criteria include industrial/extended temperature operation (−40°C to +125°C), SOIC-8 narrow-body package compatibility, I²C timing compliance at 1 MHz, and half-array write-protect functionality for firmware parameter partitioning.
Technical Context
The 24FC04HT-I/SN implements a two-wire I²C interface with Schmitt-trigger inputs and slope-controlled outputs to suppress noise and eliminate ground bounce. Its internal address counter supports current-address, random, and sequential read modes, while the 16-byte page buffer enables efficient bulk writes without host-side byte-by-byte sequencing.
Write protection is implemented via the WP pin: tied to VCC, it disables writes to addresses 100h–1FFh (half-array); tied to VSS, full-array access is enabled. The device uses self-timed erase/write cycles with 5 ms maximum page write time and supports acknowledge polling to detect write completion without fixed delays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 4 Kbit (2 × 256 × 8-bit blocks), enabling compact nonvolatile storage for boot parameters and calibration data |
| Interface | I²C-compatible two-wire bus with 1 MHz max clock (VCC = 1.7–5.5V), supporting high-speed system communication |
| Supply Voltage | 1.7V to 5.5V operation, allowing direct integration with low-voltage microcontrollers and mixed-supply systems |
| Write Cycle Time | ≤5 ms per page (16 bytes), reducing firmware update latency compared to byte-write-only EEPROMs |
| Endurance | ≥1,000,000 erase/write cycles, ensuring long-term reliability in field-updatable applications |
| Data Retention | >200 years at +25°C, guaranteeing persistent storage of critical configuration across product lifetime |
| Temperature Range | −40°C to +125°C (Extended grade), qualified for automotive and industrial under-hood/enclosure environments |
Pinout & Package
24FC04HT-I/SN is housed in an 8-lead plastic small outline (SOIC) package, narrow body (3.90 mm), with standard 1.27 mm pitch and JEDEC MS-012AC footprint. Pin 1 is marked by a beveled corner or notch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Address Input | No internal connection; may be left floating or tied to VSS/VCC without affecting operation |
| A1 | Address Input | No internal connection; unused in 24FC04H family; no impact on device addressing |
| A2 | Address Input | No internal connection; not part of client address generation for this 4-Kbit variant |
| VSS | Ground Reference | System return path for all internal circuitry; must be connected to PCB ground plane |
| SDA | Serial Data I/O | Open-drain bidirectional bus line requiring external pull-up resistor (2 kΩ typical for 1 MHz) |
| SCL | Serial Clock Input | Master-generated clock synchronizing all I²C transactions; Schmitt-trigger input rejects noise |
| WP | Write-Protect Control | Logic-high (VCC) enables half-array protection (100h–1FFh); logic-low (VSS) enables full-array writes |
| VCC | Power Supply | Primary supply rail (1.7–5.5V); powers EEPROM core, interface logic, and internal charge pump |
Key Features
| Feature | Design Value |
|---|---|
| 1 MHz I²C Clock Support | Enables faster configuration reads/writes than legacy 100 kHz EEPROMs, improving system boot and update times |
| Hardware Half-Array Write-Protection | Physically prevents accidental overwrites to critical firmware parameters stored in upper 2 Kbit block (100h–1FFh) |
| 16-Byte Page Write Buffer | Reduces I²C transaction overhead by up to 16× versus byte-write mode, minimizing bus occupancy |
| Schmitt Trigger Inputs & Slope Control | Ensures robust operation on noisy PCBs or long traces without external filtering components |
| 1.7V Minimum Operating Voltage | Supports direct interfacing with ultra-low-power MCUs (e.g., PIC16LF, SAM L21) without level-shifting |
Applications
| Industrial PLC Configuration Storage | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Storing calibrated sensor offsets, I/O mapping tables, and user-defined logic configurations in programmable logic controllers. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed during power-up and runtime reconfiguration via I²C. Use Value: Enables field updates without firmware reflashing; 1.7V operation ensures retention during brown-out conditions common in factory floor power systems. | Use Scenario: Holding door lock actuator profiles, lighting dimming curves, and seat position presets in automotive BCMs. IC Role / Device Role / Timing Role: AEC-Q100 qualified EEPROM providing secure, long-life storage for safety-critical user preferences. Use Value: −40°C to +125°C rating and >200-year data retention ensure parameter integrity over vehicle lifetime, even in high-temperature cabin environments. |
| Medical Infusion Pump Calibration | Smart Energy Meter Firmware Parameters |
Use Scenario: Storing flow-rate calibration coefficients, alarm thresholds, and usage logs in battery-powered infusion pumps. IC Role / Device Role / Timing Role: Low-power (1 µA standby) nonvolatile memory preserving critical therapy data during battery replacement. Use Value: 1.7V operation allows direct connection to single-cell Li-ion supply; write-protection prevents corruption of FDA-mandated calibration data. | Use Scenario: Maintaining tariff schedules, metering constants, and tamper-event logs in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: Secure, high-endurance memory for regulatory-grade energy usage records and cryptographic keys. Use Value: Hardware write-protect isolates immutable billing parameters from field-upgradable firmware sections, meeting ANSI/IEEE security requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA04HT-I/SN | Max clock 400 kHz (100 kHz below 2.5V); same 4-Kbit organization and SOIC-8 package | Limited to lower-speed I²C buses; suitable where 1 MHz timing is unnecessary | Select when system clock budget is constrained and cost sensitivity outweighs speed requirement |
| AT24C04-10PU-2.7 | 4-Kbit I²C EEPROM; 100 kHz/400 kHz only; 2.7–5.5V supply; PDIP-8 package | Requires higher minimum voltage (2.7V); lacks extended temperature grade and 1 MHz capability | Choose for legacy through-hole designs or cost-sensitive industrial controls without extended temp needs |
Compared with 24AA04HT-I/SN and AT24C04-10PU-2.7, the 24FC04HT-I/SN uniquely supports 1 MHz I²C at 1.7V and −40°C to +125°C operation, making it optimal for next-generation automotive and battery-powered edge devices requiring fast, robust configuration storage.
Availability
24FC04HT-I/SN is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device manufacturing requiring stable component supply, AEC-Q100 qualification, and extended temperature performance.
Supply support for 24FC04HT-I/SN 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 Inc. is a leading provider of microcontroller, analog, FPGA, and memory solutions, serving automotive, industrial, consumer, and communications markets with integrated silicon and development tools.
The 24FC04HT-I/SN belongs to Microchip's 24XX04H family of serial EEPROMs, designed specifically for reliable, low-voltage, high-speed configuration storage in space-constrained embedded systems requiring extended temperature operation and hardware write protection.
FAQ
What is the maximum I²C clock frequency supported by the 24FC04HT-I/SN?
The 24FC04HT-I/SN supports up to 1 MHz I²C clock frequency across its full 1.7V to 5.5V supply range. This is a key differentiator from the 24AA04HT-I/SN (max 400 kHz) and enables faster configuration loading in time-critical applications. The device maintains full AC timing compliance-including THIGH, TLOW, and TSU:DAT-down to 1.7V, eliminating need for voltage scaling when maximizing bus speed.
How does the write-protect function work on the 24FC04HT-I/SN?
The 24FC04HT-I/SN uses the WP pin to enable hardware-based half-array write protection. When WP is tied to VCC, writes to memory addresses 100h–1FFh (upper 2 Kbit block) are inhibited while reads remain fully functional. When WP is tied to VSS, full-array read/write access is enabled. This allows safe separation of immutable calibration data from user-modifiable settings without software overhead.
Is the 24FC04HT-I/SN compatible with standard SOIC-8 footprints?
Yes, the 24FC04HT-I/SN uses the industry-standard 8-lead plastic small outline (SN) package-narrow body, 3.90 mm width, 1.27 mm pitch-with JEDEC MS-012AC dimensions. Its land pattern matches common SOIC-8 PCB footprints, including recommended pad size (1.55 × 0.60 mm) and spacing (1.27 mm), ensuring drop-in compatibility with existing layouts designed for similar Microchip or third-party EEPROMs.
What is the endurance and data retention specification for the 24FC04HT-I/SN?
The 24FC04HT-I/SN guarantees ≥1,000,000 erase/write cycles and >200 years of data retention at +25°C. These specifications are validated per Microchip's characterization process and apply across the full −40°C to +125°C operating range. The >200-year retention ensures configuration data remains intact over the entire service life of automotive, industrial, and medical equipment without periodic refresh.
Does the 24FC04HT-I/SN require external pull-up resistors on SDA and SCL lines?
Yes, the 24FC04HT-I/SN requires external pull-up resistors on both SDA and SCL lines because its I²C interface uses open-drain outputs. For 1 MHz operation, a 2 kΩ pull-up to VCC is recommended; for 400 kHz, 2.2 kΩ is typical; and for 100 kHz, 10 kΩ suffices. Proper pull-up sizing ensures signal rise time compliance (<1000 ns) and avoids bus contention or timing violations in multi-slave systems.
24FC04HT-I/SN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 4Kbit
- Memory Organization:
- 256 x 8 x 2
- Memory Interface:
- I2C
- Clock Frequency:
- 1 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 450 ns
- Voltage - Supply:
- 1.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24FC04HT-I/SN FAQ
1.How can I place an order for 24FC04HT-I/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24FC04HT-I/SN 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 24FC04HT-I/SN reliable?
The price and inventory of 24FC04HT-I/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24FC04HT-I/SN is usually 5 days.
3.What payment methods are accepted for 24FC04HT-I/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24FC04HT-I/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24FC04HT-I/SN?
24FC04HT-I/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24FC04HT-I/SN 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 24FC04HT-I/SN?
For technical support, including 24FC04HT-I/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24FC04HT-I/SN requirements.
6.How does Aetrix verify that 24FC04HT-I/SN is sourced from the original manufacturer or authorized distributors?
All 24FC04HT-I/SN 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 24FC04HT-I/SN meets industry standards.
7.What is the process for return or replacement of 24FC04HT-I/SN?
All 24FC04HT-I/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24FC04HT-I/SN, 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 24FC04HT-I/SN part is unused and in its original packaging.
Return procedure for 24FC04HT-I/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24FC04HT-I/SN 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…
