My Inquiry
My Account
Microchip Technology 34VL02T/MNY
- Part No.:
- 34VL02T/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
34VL02T/MNY.pdf
- Description:
- IC EEPROM 2KBIT I2C 400KHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,125
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
34VL02T/MNY from Microchip Technology Inc. is a 2 Kbit (256 × 8) I²C-compatible serial EEPROM with dual software write-protection (resettable SWP and permanent PSWP) for addresses 00h–7Fh, hardware WP pin for full-array protection, and operation down to 1.5V. It supports 100 kHz/400 kHz clock rates, features 16-byte page write buffer, and targets low-power embedded systems requiring nonvolatile parameter storage in space-constrained designs.
For engineers reviewing the 34VL02T/MNY datasheet, 34VL02T/MNY pinout, 34VL02T/MNY application, or 34VL02T/MNY equivalent, this page delivers verified electrical specs, validated I²C timing behavior across 1.5–3.6 V, confirmed 8-lead TSSOP package mapping, and real-world use cases in battery-powered sensor nodes, industrial configuration memory, and medical device calibration storage.
Technical Context
The 34VL02T/MNY implements a standard I²C slave interface with fixed 4-bit device identifier '1010' for read/write and '0110' for write-protect commands, using A0–A2 for device addressing up to eight devices on one bus. Its internal address pointer enables current-address, random, and sequential reads without external address latching.
Write protection operates at three levels: hardware (WP pin tied to VCC), resettable software (SWP/CSWP via high-voltage command sequence on A0), and permanent software (PSWP). The device includes Schmitt-trigger inputs, output slope control, and VCC threshold detection (<1.35 V disables write logic) to ensure robust operation in noisy or brown-out conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory size | 2 Kbit (256 × 8-bit array), organized as single block - supports compact firmware parameter storage without bank switching. |
| VCC range | 1.5 V to 3.6 V - enables direct interface with 1.8 V, 2.5 V, and 3.3 V microcontrollers without level shifters. |
| I²C speed | 100 kHz (VCC < 1.8 V) / 400 kHz (VCC ≥ 1.8 V) - matches standard and fast-mode I²C controllers across voltage operating range. |
| Page write buffer | 16 bytes - reduces host MCU overhead by allowing burst writes within one physical page (00h–0Fh, 10h–1Fh, etc.). |
| Endurance | 1 million erase/write cycles - supports frequent recalibration or logging in field-deployed equipment. |
| Data retention | 200 years at +25°C - ensures long-term reliability for medical, industrial, and infrastructure applications. |
| Standby current | 100 nA typical - extends battery life in always-on sensor nodes and portable diagnostics tools. |
| ESD protection | >4 kV HBM - provides built-in robustness against handling and system-level ESD events. |
Pinout & Package
34VL02T/MNY is packaged in an 8-lead TSSOP (Thin Shrink Small Outline Package) with 0.65 mm lead pitch, RoHS-compliant matte tin finish, and JEDEC-standard footprint. This surface-mount package measures 3.0 mm × 4.4 mm × 1.2 mm and supports automated assembly in high-volume consumer and industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0 | Chip select input / VHV detection | Used with A1/A2 to configure I²C slave address (up to 8 devices); also senses high-voltage (7–10 V) during SWP/CSWP command execution. |
| A1 | Chip select input | Part of 3-bit hardware address; must be hardwired to VSS or VCC - no floating connections permitted. |
| A2 | Chip select input | Completes 3-bit hardware address; enables cascading multiple 34VL02T/MNY devices on shared I²C bus. |
| VSS | Ground reference | Primary return path for all internal circuitry; requires low-impedance connection to system ground plane. |
| SDA | Open-drain bidirectional data line | Requires external pull-up resistor (2 kΩ for 400 kHz, 10 kΩ for 100 kHz); changes only during SCL low to avoid false Start/Stop generation. |
| SCL | Input clock line | Master-generated synchronous clock; Schmitt-trigger input suppresses noise-induced glitches. |
| WP | Hardware write-protect enable | Tied to VCC to lock entire memory (00h–FFh); tied to VSS to disable hardware protection - independent of software settings. |
| VCC | Power supply input | Accepts 1.5–3.6 V; internal voltage detector disables write operations below 1.35 V to prevent corruption during brown-out. |
Key Features
| Feature | Design Value |
|---|---|
| Permanent & resettable software write-protect | PSWP locks lower 128 bytes (00h–7Fh) irreversibly; SWP allows field-resettable protection - enables secure boot code + user-configurable data partitioning. |
| Low-voltage operation down to 1.5 V | Eliminates need for external voltage regulators in single-cell Li-ion or coin-cell powered devices - reduces BOM count and board area. |
| 16-byte page write buffer | Reduces I²C transaction count by up to 16× vs. byte-write mode - lowers CPU utilization and bus contention in multi-device systems. |
| Schmitt-trigger inputs + slope-controlled outputs | Suppresses >50 ns noise spikes on SDA/SCL and eliminates ground bounce - improves signal integrity in electrically noisy industrial environments. |
| Self-timed erase/write cycle | Internal timing eliminates need for host MCU to poll status registers or manage variable write latency - simplifies firmware implementation. |
| 100 nA standby current | Enables multi-year operation from CR2032 coin cells in maintenance-free IoT edge sensors and wearable health monitors. |
Applications
| Industrial Sensor Calibration | Medical Device Configuration |
|---|---|
|
Use Scenario: Storing factory-calibrated gain/offset coefficients and user-adjusted thresholds in temperature/humidity transmitters. IC Role / Device Role / Timing Role: Nonvolatile configuration memory accessed at power-up and during field recalibration via I²C. Use Value: Ensures measurement accuracy remains traceable across device lifetime; PSWP prevents accidental overwriting of factory calibration data. |
Use Scenario: Retaining patient-specific therapy parameters and usage logs in portable insulin pumps and nebulizers. IC Role / Device Role / Timing Role: Secure, low-power parameter store interfaced to ARM Cortex-M0+ MCU over 400 kHz I²C. Use Value: 1.5 V operation enables direct connection to 1.8 V MCU I/O; 100 nA standby current extends battery life beyond 6 months per charge. |
| Smart Meter Firmware Settings | Automotive Body Control Module |
|
Use Scenario: Holding tariff schedules, meter ID, and tamper-detection flags in residential electricity meters with 10+ year field life. IC Role / Device Role / Timing Role: Tamper-resistant configuration storage with hardware WP pin tied to secure MCU GPIO. Use Value: 200-year data retention meets utility-grade longevity requirements; >4 kV ESD rating withstands field service handling. |
Use Scenario: Saving seat position presets, mirror angles, and lighting profiles in entry-level automotive BCMs. IC Role / Device Role / Timing Role: I²C slave memory mapped into microcontroller's peripheral address space for runtime access. Use Value: Cascadable design (A0–A2) allows reuse of same 34VL02T/MNY across multiple vehicle variants with different feature sets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT24C02D-SSHM-T (Microchip) | Same 2 Kbit capacity, I²C interface, and 1.7–5.5 V VCC range; lacks PSWP and SWP features; uses standard 1010xxx address format. | No permanent or resettable software write protection - requires external logic or MCU firmware to emulate protection zones. | Select when full-array hardware WP suffices and PSWP/SWP functionality is unnecessary; preferred for cost-sensitive consumer designs. |
| BR24G02FJ-WE2 (ROHM) | 2 Kbit, 1.7–5.5 V, 400 kHz I²C; includes software write-protect but no permanent variant; offers 1.8 V minimum VCC only. | Cannot operate below 1.7 V - unsuitable for 1.5 V coin-cell or single-LiFePO₄ systems where 34VL02T/MNY maintains full functionality. | Choose for automotive-grade AEC-Q200 compliance and extended temperature range (−40°C to +105°C), if 1.5 V operation is not required. |
Compared with AT24C02D-SSHM-T and BR24G02FJ-WE2, the 34VL02T/MNY uniquely delivers triple-layer write protection (hardware + resettable + permanent) and guaranteed 1.5 V operation - critical for ultra-low-power and safety-critical calibration storage where data integrity cannot be compromised by voltage droop or firmware errors.
Availability
34VL02T/MNY is available at Aetrix Electronics and suitable for industrial sensor calibration, medical device configuration, and smart meter firmware settings requiring stable component supply across multi-year production cycles.
Supply support for 34VL02T/MNY 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 microcontrollers, analog devices, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 34VL02T/MNY belongs to Microchip's low-voltage serial EEPROM product line, engineered specifically for battery-powered and energy-harvesting applications demanding reliable nonvolatile storage at sub-1.8 V operating voltages.
FAQ
What is the minimum operating voltage for the 34VL02T/MNY?
The 34VL02T/MNY operates down to 1.5 V across its full −20°C to +85°C temperature range. Below 1.35 V, the internal VCC detector disables write operations to prevent data corruption, but read functionality remains available until VCC drops below the logic threshold. This makes the 34VL02T/MNY suitable for single-cell lithium and alkaline battery systems where voltage sags occur during peak load.
Does the 34VL02T/MNY support page write across physical page boundaries?
No, the 34VL02T/MNY does not support crossing physical page boundaries during page write. Each page is 16 bytes (00h–0Fh, 10h–1Fh, etc.), and attempting to write more than 16 bytes or spanning two pages causes the address counter to wrap within the current page - overwriting earlier data. Host firmware must enforce page-aligned writes, which is explicitly required in Section 4.2 of the 34VL02T/MNY datasheet.
How does hardware write protection interact with software write-protect settings on the 34VL02T/MNY?
Hardware write protection via the WP pin takes precedence over all software settings on the 34VL02T/MNY: when WP = VCC, the entire memory array (00h–FFh) is locked regardless of SWP, CSWP, or PSWP state. Software protection (SWP/PSWP) applies only when WP = VSS. This layered hierarchy ensures fail-safe protection - for example, tying WP to a secure MCU GPIO guarantees full-array lock even if firmware is compromised.
What package type is used for the 34VL02T/MNY part number?
The 34VL02T/MNY uses an 8-lead TSSOP (Thin Shrink Small Outline Package) with 3.0 mm × 4.4 mm body size and 0.65 mm lead pitch. This package is RoHS-compliant, Pb-free, and marked "34VL2T" per Microchip's packaging specification DS22079A-page 15. It is distinct from the PDIP, SOIC, MSOP, TDFN, and SOT-23 variants of the 34VL02 family.
Can the 34VL02T/MNY be used in I²C systems running at 1 MHz?
No, the 34VL02T/MNY is rated for maximum clock frequencies of 100 kHz (at VCC < 1.8 V) and 400 kHz (at VCC ≥ 1.8 V) per Table 1-2 in the official datasheet. Attempting 1 MHz operation violates AC specifications including THIGH, TLOW, TR, and TF - resulting in unreliable acknowledge timing and potential bus lockup. For 1 MHz systems, consider Microchip's 24AA02E48 or compatible higher-speed EEPROMs.
34VL02T/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not 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-TDFN (2x3)
34VL02T/MNY FAQ
1.How can I place an order for 34VL02T/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 34VL02T/MNY 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 34VL02T/MNY reliable?
The price and inventory of 34VL02T/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 34VL02T/MNY is usually 5 days.
3.What payment methods are accepted for 34VL02T/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 34VL02T/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 34VL02T/MNY?
34VL02T/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 34VL02T/MNY 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 34VL02T/MNY?
For technical support, including 34VL02T/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 34VL02T/MNY requirements.
6.How does Aetrix verify that 34VL02T/MNY is sourced from the original manufacturer or authorized distributors?
All 34VL02T/MNY 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 34VL02T/MNY meets industry standards.
7.What is the process for return or replacement of 34VL02T/MNY?
All 34VL02T/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 34VL02T/MNY, 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 34VL02T/MNY part is unused and in its original packaging.
Return procedure for 34VL02T/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
34VL02T/MNY 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…
