My Inquiry
My Account
Microchip Technology 24VL024HT/MS
- Part No.:
- 24VL024HT/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
24VL024HT/MS.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,298
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
24VL024HT/MS from Microchip Technology Inc. is a 2 Kbit (256 × 8) I²C-compatible serial EEPROM designed for ultra-low-voltage embedded systems. It operates from 1.5V to 3.6V, draws ≤400 μA active current and ≤1 μA standby current, features hardware write-protection for the upper half-array (80h–FFh), and supports up to eight devices on one bus via A0–A2 address pins. It is used in battery-powered sensor nodes and portable medical devices requiring nonvolatile memory with robust noise immunity.
For engineers reviewing the 24VL024HT/MS datasheet, 24VL024HT/MS pinout, 24VL024HT/MS application, or 24VL024HT/MS equivalent, this page delivers verified electrical specs (1.5V min VCC, 400 kHz max clock, 5 ms write cycle), package mapping (8-pin MSOP), pin-level circuit roles (SDA/SCL open-drain I²C interface, WP-controlled half-array protection), and two validated alternative parts with documented functional and application differences.
Technical Context
The 24VL024HT/MS implements a true I²C slave interface with Schmitt-triggered SDA/SCL inputs and internal spike filtering (50 ns), enabling reliable operation on noisy PCBs. Its address decoder accepts three user-configurable chip-select bits (A0–A2), allowing cascaded configurations up to 16 Kbits of contiguous memory space across eight devices.
Internally, it uses a self-timed write architecture with auto-erase, a 16-byte page buffer, and a voltage-threshold detector that disables write logic below 1.2V. The hardware write-protect circuit responds only to static WP pin level (VSS = disabled, VCC = enabled), with no software control or register-based locking.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCC Range | 1.5V to 3.6V - Enables direct connection to single-cell Li-ion, alkaline, or coin-cell power rails without regulation. |
| Memory Size | 2 Kbit (256 × 8) - Stores calibration data, device IDs, or configuration parameters for compact edge nodes. |
| I²C Clock Speed | 100 kHz (VCC < 1.8V) / 400 kHz (VCC ≥ 1.8V) - Matches standard and fast-mode I²C masters without external clock dividers. |
| Write Cycle Time | 5 ms maximum - Determines minimum time between successive writes; impacts firmware polling or timeout design. |
| Endurance | 1 million erase/write cycles - Supports field-updatable firmware metadata or logging in industrial controllers. |
| Data Retention | 200 years at +25°C - Guarantees long-term storage of factory-programmed identifiers or security keys. |
| ESD Protection | >4 kV HBM - Reduces need for external TVS diodes in handheld or exposed-interface applications. |
Pinout & Package
24VL024HT/MS is supplied in an 8-pin MSOP (Micro Small Outline Package) with 0.65 mm lead pitch and 3.0 mm × 3.0 mm body size. Pin 1 is marked with a dot or bevel; the package is RoHS-compliant and Pb-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip Select Input | User-configurable LSB of I²C slave address; hardwired to VSS/VCC to select one of eight possible addresses (1010xxx0). |
| A1 | Chip Select Input | Mid-bit of slave address; enables multi-device bus expansion without address conflict. |
| A2 | Chip Select Input | MSB of slave address; determines unique I²C address when multiple 24VL024HT/MS devices share SDA/SCL lines. |
| VSS | Ground Reference | Primary return path for all internal logic and I/O; must be low-impedance to support Schmitt-trigger noise rejection. |
| SDA | Serial Data I/O | Open-drain bidirectional line; requires external pull-up (2 kΩ @ 400 kHz); changes only during SCL low except for Start/Stop. |
| SCL | Serial Clock Input | Master-generated clock; synchronizes all read/write transfers; Schmitt-trigger input ensures clean edge detection. |
| WP | Hardware Write-Protect | Static enable/disable of write access to upper half-array (80h–FFh); tied to VCC for protection, VSS for full access. |
| VCC | Power Supply | Single supply input (1.5–3.6V); internal voltage detector disables writes if VCC drops below 1.2V nominal. |
Key Features
| Feature | Design Value |
|---|---|
| Low-Voltage Operation (1.5V) | Enables direct integration into energy-harvesting or single-cell battery systems without LDO overhead. |
| Page Write Buffer (16 bytes) | Reduces I²C transaction count by 16× vs. byte-write mode, lowering bus occupancy and CPU intervention. |
| Schmitt Trigger + Filter Inputs | Eliminates need for external RC filters on SDA/SCL; maintains timing integrity under ±100 mV noise injection. |
| Half-Array Hardware Write-Protection | Physically blocks writes to critical upper memory (80h–FFh) without software dependency or fuse programming. |
| Cascadable Architecture (8 devices) | Supports scalable memory expansion using only standard I²C addressing-no additional control lines required. |
Applications
| Smart Sensor Calibration | Portable Medical Device ID Storage |
|---|---|
Use Scenario: Storing factory-calibrated temperature/pressure coefficients and sensor offset values in wireless environmental monitors. IC Role / Device Role / Timing Role: Nonvolatile parameter storage accessed during boot; retains data across power cycles and deep sleep modes. Use Value: Eliminates recalibration after battery replacement; leverages 200-year retention and 1.5V operation for multi-year deployments. |
Use Scenario: Holding unique device serial numbers, regulatory compliance codes, and firmware version stamps in FDA-cleared glucose meters. IC Role / Device Role / Timing Role: Secure, tamper-resistant identity register accessed only during initialization or diagnostics. Use Value: Hardware write-protection (WP = VCC) prevents accidental overwrites of critical identifiers during field updates. |
| Industrial PLC Configuration Backup | IoT Edge Node Firmware Metadata |
Use Scenario: Saving user-defined I/O mapping, alarm thresholds, and communication settings in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Persistent configuration store updated infrequently but requiring high endurance (>1M cycles) for maintenance events. Use Value: 1 million write cycles ensure >10 years of daily reconfiguration without wear-out failure. |
Use Scenario: Caching OTA update manifests, signature verification keys, and rollback version pointers in battery-operated LoRaWAN gateways. IC Role / Device Role / Timing Role: Fast-access metadata repository supporting secure, atomic firmware updates over constrained links. Use Value: 400 kHz I²C speed and 16-byte page writes minimize update latency; low 1 μA standby current preserves battery life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 24AA024H-I/MS | Higher VCC min (1.8V); identical pinout, memory size, and I²C protocol; lower ESD rating (2.5 kV HBM). | Not suitable for sub-1.8V systems (e.g., coin-cell powered devices); otherwise drop-in for industrial temp range (-40°C to +85°C). | Select when operating above 1.8V and requiring extended temperature range; verify system-level noise immunity due to reduced ESD margin. |
| AT24C02C-SSHM-T | Same 2 Kbit capacity and I²C interface; 1.7V–5.5V VCC range; no hardware write-protect pin; uses software lock commands. | Lacks dedicated WP pin-requires firmware coordination to prevent accidental writes; wider voltage range increases flexibility in mixed-supply designs. | Choose when board layout lacks routing for WP signal or when dynamic software-controlled protection is preferred over static hardware blocking. |
Compared with 24VL024HT/MS, 24AA024H-I/MS trades ultra-low-voltage capability for broader temperature tolerance, while AT24C02C-SSHM-T replaces hardware write-protection with software-managed locks-requiring additional firmware validation but offering greater voltage adaptability.
Availability
24VL024HT/MS is available at Aetrix Electronics and suitable for smart sensor calibration, portable medical device ID storage, industrial PLC configuration backup, and IoT edge node firmware metadata applications requiring stable component supply across production lifecycles.
Supply support for 24VL024HT/MS 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 global semiconductor company specializing in microcontrollers, analog components, and memory solutions for embedded control applications.
The 24VL024HT/MS belongs to Microchip's low-voltage serial EEPROM product line, engineered specifically for energy-constrained systems where operation below 1.8V and minimal quiescent current are mandatory design requirements.
FAQ
What is the minimum supply voltage required for reliable operation of the 24VL024HT/MS?
The 24VL024HT/MS guarantees full functionality down to 1.5V VCC across its specified temperature range (-20°C to +85°C). Below 1.2V, the internal voltage detector disables write operations to prevent corruption, but read access remains possible until VCC drops below operational threshold. This makes the 24VL024HT/MS uniquely suited for single-cell alkaline or lithium primary battery applications where voltage declines over time.
How does the hardware write-protection feature work on the 24VL024HT/MS?
The 24VL024HT/MS uses a dedicated WP pin: when tied to VCC, it permanently disables writes to memory addresses 80h–FFh (upper half-array); when tied to VSS, full array access is permitted. Unlike software-lock EEPROMs, this protection is physical and immune to firmware bugs or bus glitches. No command sequence or register write is needed-protection state is determined solely by the static WP pin voltage at power-on.
Can multiple 24VL024HT/MS devices share the same I²C bus, and how is addressing managed?
Yes-up to eight 24VL024HT/MS devices can operate on a single I²C bus using the A0, A1, and A2 pins to configure unique 3-bit chip-select bits within the base slave address '1010xxx0'. Each device must have a distinct combination of A0–A2 tied to VSS or VCC. This enables contiguous 16 Kbit memory expansion without additional address lines or multiplexers, simplifying PCB routing in space-constrained designs.
What is the significance of the 'T' and 'MS' suffixes in the part number 24VL024HT/MS?
In 24VL024HT/MS, 'T' denotes tape-and-reel packaging for automated SMT assembly, and 'MS' specifies the 8-pin MSOP (Micro Small Outline Package) variant. This exact variant has a 3.0 mm × 3.0 mm footprint, 0.65 mm lead pitch, and is optimized for high-density layouts. Other package options (e.g., SOIC, TSSOP) use different suffixes (SN, ST), but share identical electrical behavior and pinout.
Does the 24VL024HT/MS support page write operations, and what is the maximum buffer size?
Yes-the 24VL024HT/MS includes a 16-byte page write buffer. A single I²C transaction can load up to 16 sequential bytes into the buffer before initiating the internal 5 ms write cycle. This reduces bus traffic by up to 16× compared to byte-write mode and improves system responsiveness. Page boundaries align to 16-byte intervals (00h–0Fh, 10h–1Fh, etc.), and crossing boundaries causes wraparound-not automatic page advancement.
24VL024HT/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 2Kbit
- Memory Organization:
- 256 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-MSOP
24VL024HT/MS FAQ
1.How can I place an order for 24VL024HT/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 24VL024HT/MS 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 24VL024HT/MS reliable?
The price and inventory of 24VL024HT/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 24VL024HT/MS is usually 5 days.
3.What payment methods are accepted for 24VL024HT/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 24VL024HT/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 24VL024HT/MS?
24VL024HT/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 24VL024HT/MS 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 24VL024HT/MS?
For technical support, including 24VL024HT/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 24VL024HT/MS requirements.
6.How does Aetrix verify that 24VL024HT/MS is sourced from the original manufacturer or authorized distributors?
All 24VL024HT/MS 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 24VL024HT/MS meets industry standards.
7.What is the process for return or replacement of 24VL024HT/MS?
All 24VL024HT/MS units undergo pre-shipment inspection (PSI). If there is an issue with 24VL024HT/MS, 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 24VL024HT/MS part is unused and in its original packaging.
Return procedure for 24VL024HT/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
24VL024HT/MS 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…
