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Microchip Technology AT28LV010-20TU-630
- Part No.:
- AT28LV010-20TU-630
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 32-TFSOP (0.724", 18.40mm Width)
- Datasheet:
-
AT28LV010-20TU-630.pdf
- Description:
- IC EEPROM 1MBIT PARALLEL 32TSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,500
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Product details
Overview
AT28LV010-20TU-630 from Atmel is a 1 Mbit (128K × 8) low-voltage paged parallel EEPROM with JEDEC-standard byte-wide pinout, 200 ns read access time, 10 ms maximum page write cycle time, and operation on single 3.3V ±10% supply. It supports 1–128-byte page writes with internal latching and DATA polling for write completion detection, used in industrial embedded systems requiring nonvolatile storage with fast random read and controlled write sequencing.
For engineers reviewing the AT28LV010-20TU-630 datasheet, AT28LV010-20TU-630 pinout, AT28LV010-20TU-630 application, or AT28LV010-20TU-630 equivalent, key selection criteria include its 3.3V-only operation, 20 µA CMOS standby current, hardware/software data protection, JEDEC-compliant 32-lead TSOP package, and support for automatic page write with internal control timer-critical for firmware update buffers and configuration storage in power-constrained environments.
Technical Context
The AT28LV010-20TU-630 implements a paged parallel EEPROM architecture with 128-byte internal page register, enabling simultaneous latching of up to 128 bytes before internal programming. Its dual-line chip enable (CE) and output enable (OE) control allows flexible bus contention management during read cycles, while write operations require a three-byte software data protection (SDP) command sequence prior to each page or byte write.
Write completion is verified via DATA polling on I/O7 (complement-to-data during write, true data after completion) or toggle-bit detection on I/O6, both usable at any point during the internal 10 ms programming period. The device uses advanced CMOS nonvolatile technology with built-in error correction, delivering 10⁵ write/erase endurance and 10-year data retention across –40°C to +85°C industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 Mbit (131,072 × 8), supporting firmware image storage or parameter tables in space-constrained designs |
| Read Access Time | 200 ns max - enables direct replacement of SRAM in legacy boot memory interfaces without timing redesign |
| Page Write Cycle | 10 ms max - defines minimum interval between successive page writes; critical for system-level write scheduling |
| Supply Voltage | 3.3V ±10% - eliminates need for separate 5V rail; compatible with modern low-voltage microcontroller I/O |
| Standby Current | 20 µA CMOS - ensures ultra-low power consumption during sleep modes in battery-backed applications |
| Endurance | 10⁵ write/erase cycles - supports frequent field-updatable configuration storage over product lifetime |
| Data Retention | 10 years at 85°C - guarantees long-term reliability in industrial thermal environments without refresh |
Pinout & Package
AT28LV010-20TU-630 is packaged in a 32-lead Plastic Thin Small Outline Package (TSOP), Type I, 8 mm × 20 mm footprint per JEDEC MO-142 BD, with lead pitch of 0.50 mm and coplanarity ≤0.10 mm. This green (Pb/halide-free) package supports automated surface-mount assembly and meets industrial thermal cycling requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0–A16 | Address Inputs | 17-bit address bus supporting full 128K-word addressing; A7–A16 define page boundaries for 128-byte writes |
| I/O0–I/O7 | Bidirectional Data Bus | Byte-wide parallel interface; I/O7 used for DATA polling, I/O6 for toggle-bit write status indication |
| CE | Chip Enable | Active-low chip select; must remain de-asserted ≥50 ns during reads to prevent data corruption |
| OE | Output Enable | Active-low output control; used with CE for bus contention avoidance during read operations |
| WE | Write Enable | Active-low write strobe; falling edge latches address/data; controls SDP command and page write initiation |
| VCC | Power Supply | 3.3V ±10% input; includes internal 5 ms power-on delay before write circuitry activation |
| GND | Ground Reference | Signal and power return; decoupling required within 10 mm of VCC pin per layout guidelines |
| NC | No Connect | Unbonded pins (TSOP positions 15, 29); must be left floating or tied to GND per board design rules |
Key Features
| Feature | Design Value |
|---|---|
| Software Data Protection (SDP) | Three-byte command sequence required before every write - prevents accidental writes during power transitions or noise events |
| Automatic Page Write | Internal 128-byte latch and control timer eliminate host CPU overhead during multi-byte writes |
| DATA Polling & Toggle Bit | Dual asynchronous write-complete detection methods - enables deterministic timing without fixed delays or polling loops |
| JEDEC Byte-Wide Pinout | Pin-compatible with industry-standard EPROM/EEPROM sockets - simplifies migration from legacy 27Cxxx or 28Fxxx families |
| Industrial Temperature Range | –40°C to +85°C operation - validated for use in motor drives, PLCs, and outdoor telecom equipment |
Applications
| Firmware Boot Loader Storage | Industrial Sensor Calibration Data |
|---|---|
Use Scenario: Storing bootloader code and secure boot keys in microcontroller-based edge devices requiring tamper-resistant nonvolatile memory. IC Role / Device Role / Timing Role: Primary boot memory mapped into processor address space; accessed via parallel bus during cold start with 200 ns read latency. Use Value: 200 ns read speed ensures minimal boot delay; hardware/software write protection prevents corruption during brown-out conditions. | Use Scenario: Retaining factory-calibrated coefficients and runtime compensation parameters for high-precision analog sensor modules. IC Role / Device Role / Timing Role: Configuration storage updated infrequently (<100×/year) but requiring guaranteed 10-year retention at elevated ambient temperatures. Use Value: 10⁵ endurance and 10-year data retention at 85°C meet IEC 61000-4-30 Class A instrumentation requirements. |
| Network Equipment Configuration | Medical Device Setup Parameters |
Use Scenario: Holding MAC addresses, VLAN settings, and firmware patch metadata in managed Ethernet switches operating 24/7. IC Role / Device Role / Timing Role: Nonvolatile configuration store updated via host MCU during provisioning; accessed randomly during initialization and diagnostics. Use Value: 20 µA standby current minimizes system-level power draw during idle periods; page write reduces update time vs. byte-by-byte writes. | Use Scenario: Saving user-defined therapy profiles and safety-critical operational limits in portable diagnostic instruments with battery backup. IC Role / Device Role / Timing Role: Secure parameter vault accessed only during setup mode; write-protected by SDP and hardware inhibit (CE/OE/WE logic). Use Value: Dual write-detection (DATA polling + toggle bit) ensures deterministic firmware validation before clinical use. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar paged parallel EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT28C010-15PU | 5V-only supply; 150 ns access; no SDP; 28-pin DIP package | Lacks low-voltage operation and software write protection; requires external 5V rail | Select only for legacy 5V systems where voltage compatibility and through-hole assembly are mandatory |
| MX28LV160CTPC-20G | 3.3V supply; 200 ns access; 16 Mbit density; 48-pin TSOP; no SDP | Higher density but lacks software data protection and JEDEC byte-wide pinout | Choose when larger capacity is needed and host firmware can manage unprotected writes |
Compared with AT28LV010-20TU-630, AT28C010-15PU requires full 5V infrastructure and offers no write safeguards, while MX28LV160CTPC-20G provides greater capacity but removes SDP and changes pinout-making AT28LV010-20TU-630 optimal for secure, low-power, drop-in replacements in existing 3.3V parallel EEPROM designs.
Availability
AT28LV010-20TU-630 is available at Aetrix Electronics and suitable for industrial automation controllers, medical diagnostic instruments, and network infrastructure equipment requiring stable component supply, long-lifecycle availability, and Pb/halide-free compliance.
Supply support for AT28LV010-20TU-630 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
Atmel Corporation (now part of Microchip Technology) is a semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and security ICs for industrial, automotive, and consumer applications.
The AT28LV010 product line delivers low-voltage, paged parallel EEPROMs optimized for reliable firmware storage and configuration retention in harsh industrial environments with strict power and longevity requirements.
FAQ
What is the correct power-up sequence for AT28LV010-20TU-630?
The AT28LV010-20TU-630 incorporates an internal VCC power-on delay: once VCC reaches 2.0V (typical), the device automatically waits ~5 ms before enabling write circuitry. No external reset sequencing is required, but VCC must stabilize within specification (3.3V ±10%) before asserting CE or WE. During this delay, read operations are functional but writes are inhibited-ensuring AT28LV010-20TU-630 remains immune to power-rail transients during startup.
Does AT28LV010-20TU-630 support true random-access writes like SRAM?
No. AT28LV010-20TU-630 requires a three-byte Software Data Protection (SDP) command sequence before every write operation, followed by a 10 ms internal programming period. Unlike SRAM, it cannot accept back-to-back write commands without polling or timeout. However, its 128-byte page register allows loading multiple bytes before initiating programming-making AT28LV010-20TU-630 efficient for burst configuration updates while maintaining nonvolatile integrity.
How is write completion detected on AT28LV010-20TU-630?
AT28LV010-20TU-630 provides two hardware-verified methods: DATA polling on I/O7 (returns complement of written data during programming, true data upon completion) and toggle-bit detection on I/O6 (toggles between 0/1 until write ends, then stabilizes). Both methods work at any time during the write cycle and require no fixed delay-enabling deterministic, low-overhead host firmware verification. This dual-mechanism design ensures robust AT28LV010-20TU-630 integration even under variable clock or voltage conditions.
What is the function of NC pins on AT28LV010-20TU-630 in the 32T TSOP package?
In the AT28LV010-20TU-630's 32-lead TSOP (32T) package, pins 15 and 29 are designated NC (No Connect) - physically present but internally unbonded. These pins must not be soldered to signal traces; they may be left floating or tied to GND per PCB design rules to minimize EMI. Their presence maintains mechanical symmetry and JEDEC MO-142 BD package compliance but carries no electrical function - a detail confirmed in Atmel's official 0395F–PEEPR–08/09 datasheet for AT28LV010-20TU-630.
Can AT28LV010-20TU-630 be used as a direct replacement for 27C010 EPROMs?
No - AT28LV010-20TU-630 is not a pin-compatible or functional replacement for 27C010 EPROMs. While both are 1 Mbit parallel memories, the 27C010 requires 12.5V programming voltage and UV erasure, whereas AT28LV010-20TU-630 operates at 3.3V with in-system electrical erase/write. Its JEDEC byte-wide pinout matches some EPROM footprints, but CE/OE/WE timing, voltage levels, and write protocols differ fundamentally - requiring board-level redesign and firmware adaptation to use AT28LV010-20TU-630 in place of 27C010.
AT28LV010-20TU-630 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 32-TFSOP (0.724", 18.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- EEPROM
- Technology:
- EEPROM
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- Parallel
- Clock Frequency:
- -
- Write Cycle Time - Word, Page:
- 10ms
- Access Time:
- 200 ns
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TC)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 32-TSOP
AT28LV010-20TU-630 FAQ
1.How can I place an order for AT28LV010-20TU-630 through Aetrix?
Please submit a Request for Quotation (RFQ) for AT28LV010-20TU-630 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 AT28LV010-20TU-630 reliable?
The price and inventory of AT28LV010-20TU-630 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT28LV010-20TU-630 is usually 5 days.
3.What payment methods are accepted for AT28LV010-20TU-630?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT28LV010-20TU-630 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT28LV010-20TU-630?
AT28LV010-20TU-630 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT28LV010-20TU-630 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 AT28LV010-20TU-630?
For technical support, including AT28LV010-20TU-630 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT28LV010-20TU-630 requirements.
6.How does Aetrix verify that AT28LV010-20TU-630 is sourced from the original manufacturer or authorized distributors?
All AT28LV010-20TU-630 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 AT28LV010-20TU-630 meets industry standards.
7.What is the process for return or replacement of AT28LV010-20TU-630?
All AT28LV010-20TU-630 units undergo pre-shipment inspection (PSI). If there is an issue with AT28LV010-20TU-630, 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 AT28LV010-20TU-630 part is unused and in its original packaging.
Return procedure for AT28LV010-20TU-630:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AT28LV010-20TU-630 Tags
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