My Inquiry
My Account
Microchip Technology 24VL014HT/SN
- Part No.:
- 24VL014HT/SN
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
24VL014HT/SN.pdf
- Description:
- IC EEPROM 1KBIT I2C 400KHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,212
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
24VL014HT/SN from Microchip Technology Inc. is a 1 Kbit (128 × 8) I²C-compatible serial EEPROM with single-supply operation down to 1.5 V, maximum active current of 400 μA, standby current of 1 μA, and hardware write-protection for the upper half-array (40h–7Fh). It supports 100 kHz (VCC < 1.8 V) or 400 kHz (VCC ≥ 1.8 V) clock rates and is used in battery-powered sensor nodes and embedded system configuration storage.
For engineers reviewing the 24VL014HT/SN datasheet, 24VL014HT/SN pinout, 24VL014HT/SN application, or 24VL014HT/SN equivalent, this page delivers verified electrical specs, package mapping to SOIC-8, I²C timing constraints, half-array write-protect behavior, and real-world design implications for low-voltage EEPROM integration.
Technical Context
The 24VL014HT/SN implements a true 2-wire I²C slave interface with Schmitt-trigger inputs on SDA and SCL for noise immunity, internal slope control to suppress ground bounce, and a self-timed write cycle (max 5 ms) including auto-erase. Its address decoding uses A0–A2 pins to support up to eight devices on one bus, enabling contiguous 8 Kbit expansion via software-managed address bit mapping.
Hardware write protection is controlled solely by the WP pin: tied to VCC, it locks addresses 40h–7Fh; tied to VSS, full array access is permitted. The device includes a VCC threshold detector that disables erase/write logic below 1.0 V, and supports acknowledge polling to detect write completion without fixed delays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.5 V to 3.6 V - Enables direct interface with 1.8 V and 3.3 V microcontrollers; operation below 1.8 V limits clock to 100 kHz. |
| Memory Size | 1 Kbit (128 × 8) - Provides sufficient nonvolatile storage for calibration data, device IDs, or small firmware patches in space-constrained designs. |
| I²C Clock Rate | 100 kHz (VCC < 1.8 V) / 400 kHz (VCC ≥ 1.8 V) - Dictates maximum data throughput; requires pull-up resistor scaling (2 kΩ for 400 kHz, 10 kΩ for 100 kHz). |
| Write Endurance | 1 million cycles - Supports frequent field updates (e.g., metering logs or sensor calibration) over product lifetime without wear-out concerns. |
| Data Retention | 200 years - Guarantees long-term integrity of stored configuration or security keys without refresh. |
| Page Write Buffer | 16 bytes - Reduces I²C transaction overhead when writing consecutive locations; crossing physical page boundaries causes wraparound, not overflow. |
| ESD Protection | > 4,000 V HBM - Ensures robustness against handling and board-level ESD events in industrial environments. |
Pinout & Package
24VL014HT/SN is supplied in an 8-pin SOIC (3.90 mm body, SN suffix), with 1.27 mm pitch and standard JEDEC MS-012AA footprint. Pin 1 is A0 (top-left corner, marked dot or notch).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A2 | Chip Select Inputs | Configure 3-bit slave address (1010xxx); enable up to eight devices on same I²C bus; must be hard-wired to VSS or VCC before operation. |
| VSS | Ground Reference | Return path for all internal logic and I/O; requires low-impedance connection to system ground plane. |
| SDA | Serial Data Bidirectional Line | Open-drain I²C data line requiring external pull-up; changes only during SCL low; carries address, data, and ACK/NACK signals. |
| SCL | Serial Clock Input | Master-generated clock synchronizing all transfers; Schmitt-trigger input ensures noise immunity on rising/falling edges. |
| WP | Hardware Write-Protect Input | Active-high signal: tie to VCC to lock 40h–7Fh (half-array); tie to VSS for full write access; no effect on read operations. |
| VCC | Power Supply | Single 1.5–3.6 V supply; internal voltage detector disables writes if VCC drops below ~1.0 V. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Operation | Functional at 1.5 V enables direct use with coin-cell batteries (e.g., CR2032) and energy-harvesting systems without LDOs. |
| Page Write Capability | 16-byte buffer reduces I²C bus occupancy by >75% vs. byte-write for sequential updates, improving system responsiveness. |
| Schmitt Trigger + Filter | Combined 50 ns spike suppression and 0.05×VCC hysteresis eliminate false triggering on noisy industrial buses. |
| Half-Array Hardware WP | Independent protection of upper 512 bits allows safe storage of factory-calibrated parameters while permitting user data updates elsewhere. |
| Cascadable Architecture | Three address pins (A0–A2) permit 8-device daisy-chain without external logic, simplifying scalable memory expansion. |
Applications
| Smart Meter Calibration Storage | IoT Sensor Node Configuration |
|---|---|
Use Scenario: Storing temperature/pressure calibration coefficients and sensor offset values in utility-grade electricity meters operating across -20°C to +85°C. IC Role / Device Role / Timing Role: Nonvolatile configuration register holding factory-trimmed parameters; accessed infrequently during commissioning or recalibration. Use Value: 200-year data retention and 1M write cycles ensure calibration integrity over 20+ year meter lifetime without maintenance. |
Use Scenario: Saving Wi-Fi credentials, device MAC address, and OTA update state in battery-powered environmental sensors deployed in remote locations. IC Role / Device Role / Timing Role: Low-power persistent memory for critical boot-time configuration; powered directly from 1.8 V MCU rail. Use Value: 1 μA standby current extends 200 mAh coin-cell life to >10 years; 1.5 V operation avoids voltage booster complexity. |
| Industrial PLC Parameter Backup | Medical Device Settings Storage |
Use Scenario: Retaining user-defined alarm thresholds, PID tuning constants, and operational mode settings in programmable logic controllers after power loss. IC Role / Device Role / Timing Role: Fail-safe parameter vault; write-protected upper half stores immutable defaults, lower half holds field-adjustable values. Use Value: Hardware WP (WP = VCC) prevents accidental corruption of safety-critical defaults during firmware updates. |
Use Scenario: Securing patient-specific therapy parameters and device serial numbers in portable infusion pumps with strict regulatory traceability requirements. IC Role / Device Role / Timing Role: Tamper-resistant configuration store; accessed only during setup or service mode via authenticated I²C commands. Use Value: >4 kV HBM ESD rating withstands clinical handling; RoHS-compliant packaging meets medical material restrictions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C01D-SSHM-T (Microchip) | Same 1 Kbit size, 1.7–5.5 V VCC, 1 MHz I²C, but lacks half-array WP; uses different A0–A2 addressing scheme. | Requires external WP logic for partial protection; higher VCC min limits use in sub-1.8 V systems. | Select if 1 MHz speed or 5 V compatibility is required; avoid when 1.5 V operation or hardware half-array lock is mandatory. |
| BR24G01FJ-WE2 (ROHM) | 1 Kbit, 1.6–5.5 V, 400 kHz I²C, 1 μA standby, but no Schmitt-trigger inputs or slope control; WP pin protects entire array only. | Noise immunity reduced in electrically noisy environments; full-array WP less flexible than half-array granularity. | Choose for cost-sensitive consumer applications where bus noise is minimal and partial write protection is unnecessary. |
Compared with AT24C01D-SSHM-T and BR24G01FJ-WE2, the 24VL014HT/SN uniquely delivers 1.5 V operation, half-array hardware write protection, and integrated noise suppression-making it the only option for ultra-low-voltage industrial systems requiring selective, hardware-enforced data integrity.
Availability
24VL014HT/SN is available at Aetrix Electronics and suitable for battery-powered IoT nodes, smart metering infrastructure, and medical device configuration storage requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for 24VL014HT/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 U.S.-based semiconductor company specializing in microcontrollers, analog devices, and memory solutions, with a focus on reliability, low-power design, and embedded control.
The 24VL014HT/SN belongs to Microchip's low-voltage serial EEPROM product line, engineered specifically for energy-constrained applications where operation below 1.8 V, minimal quiescent current, and robust I²C communication are essential.
FAQ
What is the minimum VCC required for reliable operation of the 24VL014HT/SN?
The 24VL014HT/SN operates reliably down to 1.5 V, with guaranteed functionality across its full -20°C to +85°C temperature range. Below 1.8 V, the maximum I²C clock rate is limited to 100 kHz to maintain timing margins. The internal VCC detector disables write operations if supply drops below ~1.0 V, preventing corrupted data writes.
How does the hardware write-protection feature work on the 24VL014HT/SN?
On the 24VL014HT/SN, the WP pin controls hardware write protection: when tied to VCC, addresses 40h–7Fh (upper 512 bits) are locked against writes; when tied to VSS, full array access is enabled. This protection is independent of software commands and remains active even during power transitions.
Can multiple 24VL014HT/SN devices share the same I²C bus?
Yes, up to eight 24VL014HT/SN devices can operate on a single I²C bus using unique slave addresses configured via A0, A1, and A2 pins. Each device responds only to its assigned 3-bit chip select code within the base 1010xxx address, enabling seamless 8 Kbit contiguous memory expansion without additional address decoding logic.
What is the purpose of the Schmitt trigger and input filter on the 24VL014HT/SN SDA and SCL pins?
The Schmitt trigger inputs on the 24VL014HT/SN provide 0.05×VCC hysteresis, while the 50 ns input filter suppresses short-duration noise spikes. Together, they prevent false Start/Stop detection and spurious clock sampling in electrically noisy environments-critical for reliable operation in industrial control and automotive subsystems.
Does the 24VL014HT/SN support page write operations, and what is the buffer size?
Yes, the 24VL014HT/SN supports page write operations with a 16-byte buffer. When a Stop condition follows the initial word address and first data byte, up to 15 additional bytes are accepted and written simultaneously after the Stop. Page boundaries align to 16-byte intervals; crossing a boundary wraps data to the start of the current page rather than advancing to the next.
24VL014HT/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:
- 1Kbit
- Memory Organization:
- 128 x 8
- Memory Interface:
- I2C
- Clock Frequency:
- 400 kHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 900 ns
- Voltage - Supply:
- 1.5V ~ 3.6V
- Operating Temperature:
- -20°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
24VL014HT/SN FAQ
1.How can I place an order for 24VL014HT/SN through Aetrix?
Please submit a Request for Quotation (RFQ) for 24VL014HT/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 24VL014HT/SN reliable?
The price and inventory of 24VL014HT/SN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24VL014HT/SN is usually 5 days.
3.What payment methods are accepted for 24VL014HT/SN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24VL014HT/SN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24VL014HT/SN?
24VL014HT/SN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24VL014HT/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 24VL014HT/SN?
For technical support, including 24VL014HT/SN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24VL014HT/SN requirements.
6.How does Aetrix verify that 24VL014HT/SN is sourced from the original manufacturer or authorized distributors?
All 24VL014HT/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 24VL014HT/SN meets industry standards.
7.What is the process for return or replacement of 24VL014HT/SN?
All 24VL014HT/SN units undergo pre-shipment inspection (PSI). If there is an issue with 24VL014HT/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 24VL014HT/SN part is unused and in its original packaging.
Return procedure for 24VL014HT/SN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24VL014HT/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…
