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Microchip Technology ATA5577M1250-DDT
- Part No.:
- ATA5577M1250-DDT
- Manufacturer:
- Microchip Technology
- Category:
- RFID, RF Access, Monitoring ICs
- Package:
- Die
- Datasheet:
-
ATA5577M1250-DDT.pdf
- Description:
- IC RFID TRANSP 100-150KHZ WAFER
- Quantity:
- Payment:
- Shipping:
Inventory:4,082
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Product details
Overview
ATA5577M1250-DDT from Microchip Technology (formerly Atmel) is a contactless 125-kHz read/write RFID identification IC with 363-bit EEPROM, load modulation uplink, OOK pulse-interval downlink, and on-chip trimmed antenna capacitor. It operates in Basic or Extended mode, supports ISO/IEC 11784/11785 compatibility, and serves as a transponder tag in access control, animal identification, and waste management systems.
For engineers reviewing the ATA5577M1250-DDT datasheet, ATA5577M1250-DDT pinout, ATA5577M1250-DDT application, or ATA5577M1250-DDT equivalent, key selection criteria include RF frequency range (100–150 kHz), EEPROM block structure (11 × 33-bit blocks with lock bits), coil interface tolerance, modulation protocol support (Manchester, bi-phase, FSK, PSK, NRZ), and compatibility with T5557/ATA5567 command sets.
Technical Context
The ATA5577M1250-DDT integrates an analog front end with rectifier, clock extractor, field-gap detector, and switchable load modulator between Coil 1 and Coil 2 for bidirectional communication. Its HV generator enables EEPROM programming without external high-voltage sources.
Data-rate generation is binary programmable across even divisors of RF (RF/2 to RF/128) or fixed Basic mode rates (RF/8 to RF/128); downlink decoding follows the Atmel e555x pulse-interval encoding protocol, and memory access is block-wise with per-block lock-bit write protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 100–150 kHz - defines operational band for magnetic coupling and reader interoperability |
| EEPROM Capacity | 363 bits (11 blocks × 33 bits) - includes 32 data bits + 1 lock bit per block; enables secure, segmented data storage |
| Uplink Modulation | Load modulation via resistive damping between Coil 1 and Coil 2 - enables low-power, passive backscatter transmission |
| Downlink Protocol | 100% OOK pulse-interval encoding - ensures robust command reception under variable field strength |
| Memory Endurance | 100,000 erase/write cycles - guarantees long-term reprogrammability in field-deployed tags |
| Data Retention | 20 years at 55°C - ensures reliable traceability data persistence in industrial environments |
| On-chip Capacitor | 330 pF ±10 pF (typ.) - eliminates need for external resonance capacitor in standard coil designs |
Pinout & Package
ATA5577M1250-DDT is supplied in a bare die format with two bond pads: Coil 1 and Coil 2. No external power supply or digital I/O pins are present - all functionality is powered and communicated through the LC tank interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Coil 1 | AC input / modulation node | Primary connection to resonant coil; participates in rectification, clock extraction, and load modulation |
| Coil 2 | AC return / modulation node | Completes LC tank path; forms switchable resistive load path with Coil 1 for uplink data transmission |
Key Features
| Feature | Design Value |
|---|---|
| Configurable ISO/IEC 11784/11785 mode | Enables compliance with global animal ID standards without hardware change |
| High Q-antenna tolerance | Reduces sensitivity to coil manufacturing variance and environmental detuning |
| Pad options for bonding | Supports wire bonding (100 µm × 100 µm) or direct coil bonding (200 µm × 400 µm) |
| Block-wise EEPROM locking | Per-block lock bit prevents accidental overwrite of configuration, password, or traceability data |
| Multiple modulation schemes | Manchester, bi-phase, FSK, PSK, and NRZ support reader interoperability across legacy and custom systems |
Applications
| Access Control Systems | Animal Identification Tags |
|---|---|
Use Scenario: Contactless door entry using embedded RFID tags in employee badges or fobs. IC Role / Device Role / Timing Role: Passive transponder IC providing secure, rewritable credential storage and modulation-based response. Use Value: Enables field-upgradable access permissions and tamper-resistant lock-bit protected configuration blocks. | Use Scenario: Implantable or ear-tag RFID for livestock tracking compliant with ISO 11784/11785. IC Role / Device Role / Timing Role: ISO-compliant IDIC storing animal ID, birth date, and health records in locked traceability blocks. Use Value: Factory-programmed traceability blocks (Blocks 1–2, Page 1) ensure immutable origin data; on-chip capacitor simplifies implantable coil integration. |
| Waste Management Tags | Industrial Asset Tracking |
Use Scenario: Reusable bin tags scanned during collection to log fill level, route, and maintenance history. IC Role / Device Role / Timing Role: Read/write transponder supporting multi-cycle data logging and field reconfiguration. Use Value: 100,000 endurance cycles and 20-year data retention ensure longevity across municipal service lifetimes. | Use Scenario: Tooling or equipment tagging in factory environments with metal-rich, EMI-prone conditions. IC Role / Device Role / Timing Role: Low-frequency RFID tag operating reliably near conductive surfaces due to high-Q tolerance and field-gap detection. Use Value: Robust downlink decoding under fluctuating RF field strength enables consistent reads in challenging industrial settings. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RFID transponder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| T5557 | Same 330-bit EEPROM architecture and command set; lacks on-chip capacitor and ISO/IEC 11784/11785 configuration register | Requires external resonance capacitor; limited to proprietary or legacy reader protocols | Choose when cost-sensitive design uses existing T5557 infrastructure and external tuning components |
| ATA5567 | Identical configuration register map and mode support; same 363-bit memory layout but no factory-programmed traceability blocks | Not pre-programmed with locked traceability data; requires full user initialization | Choose when full control over all memory blocks is required and ISO-compliant traceability is not mandated |
Compared with T5557 and ATA5567, the ATA5577M1250-DDT provides integrated resonance capacitance, factory-locked traceability blocks, and native ISO/IEC 11784/11785 support - reducing BOM count, accelerating certification, and ensuring regulatory compliance out-of-box.
Availability
ATA5577M1250-DDT is available at Aetrix Electronics and suitable for access control systems, animal identification tags, and waste management applications requiring stable component supply, long-term data retention, and ISO-compliant RFID functionality.
Supply support for ATA5577M1250-DDT 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 acquired Atmel in 2016 and maintains its RFID IC portfolio, delivering high-reliability, ultra-low-power semiconductor solutions for secure identification and sensing.
The ATA5577 family was designed specifically for passive LF RFID transponders in harsh, battery-free environments - emphasizing coil interface robustness, EEPROM security, and global standard compliance for traceable asset tagging.
FAQ
What is the primary function of the ATA5577M1250-DDT in an RFID system?
The ATA5577M1250-DDT functions as a passive, contactless read/write transponder IC. It derives power and communicates bidirectionally via a single LC coil interface - receiving commands via OOK pulse-interval encoding (downlink) and transmitting data via load modulation (uplink). Its 363-bit EEPROM stores configurable credentials, traceability data, and application-specific information, making it central to secure, field-programmable RFID tag operation. The ATA5577M1250-DDT does not require a battery or external power source.
Does the ATA5577M1250-DDT require an external resonance capacitor?
No, the ATA5577M1250-DDT integrates a factory-trimmed on-chip capacitor of 330 pF ±10 pF, eliminating the need for an external resonance capacitor in most standard coil designs. This reduces component count, PCB area, and assembly complexity. External tuning may still be used for fine optimization, but the ATA5577M1250-DDT is fully functional with only the coil connected to Coil 1 and Coil 2.
How is memory protection implemented in the ATA5577M1250-DDT?
Memory protection in the ATA5577M1250-DDT is implemented at the block level: each of the 11 EEPROM blocks contains a dedicated lock bit (bit 0). Once programmed, that lock bit permanently disables further writes to the entire 33-bit block - including the lock bit itself. Blocks 1 and 2 of Page 1 are factory-programmed and locked by Microchip to store immutable traceability data, while Block 0 (Page 0) holds configuration and is typically locked after initial setup. This ensures data integrity across the ATA5577M1250-DDT's operational lifetime.
Which modulation schemes does the ATA5577M1250-DDT support for uplink transmission?
The ATA5577M1250-DDT supports Manchester, bi-phase, FSK, PSK, and NRZ modulation schemes for uplink transmission - selectable via configuration register settings. These options enable interoperability with diverse base station readers, including legacy systems using proprietary protocols and newer ISO-compliant infrastructure. The choice affects data rate, noise immunity, and reader compatibility; for example, Manchester encoding provides built-in clock recovery, while FSK improves signal-to-noise ratio in electrically noisy environments. All modulation is implemented via controlled load damping between Coil 1 and Coil 2 in the ATA5577M1250-DDT.
Is the ATA5577M1250-DDT compatible with T5557-based reader systems?
Yes, the ATA5577M1250-DDT is explicitly designed for compatibility with T5557/ATA5567 reader systems. Its configuration register structure, command set, and Basic/Extended mode operation match those devices. It can replace the e5551/T5551 in most common operation modes and supports identical downlink protocols. However, because the ATA5577M1250-DDT adds ISO/IEC 11784/11785 configuration bits and on-chip capacitance, full functional validation in the target reader environment is recommended - especially when leveraging extended features beyond baseline T5557 behavior.
ATA5577M1250-DDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- ATA5577
- Package/Case:
- Die
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- RFID Transponder
- Frequency:
- 100kHz ~ 150kHz
- Standards:
- ISO 11784, ISO 11785
- Interface:
- -
- Voltage - Supply:
- 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- Wafer
ATA5577M1250-DDT FAQ
1.How can I place an order for ATA5577M1250-DDT through Aetrix?
Please submit a Request for Quotation (RFQ) for ATA5577M1250-DDT 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 ATA5577M1250-DDT reliable?
The price and inventory of ATA5577M1250-DDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATA5577M1250-DDT is usually 5 days.
3.What payment methods are accepted for ATA5577M1250-DDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATA5577M1250-DDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATA5577M1250-DDT?
ATA5577M1250-DDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATA5577M1250-DDT 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 ATA5577M1250-DDT?
For technical support, including ATA5577M1250-DDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATA5577M1250-DDT requirements.
6.How does Aetrix verify that ATA5577M1250-DDT is sourced from the original manufacturer or authorized distributors?
All ATA5577M1250-DDT 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 ATA5577M1250-DDT meets industry standards.
7.What is the process for return or replacement of ATA5577M1250-DDT?
All ATA5577M1250-DDT units undergo pre-shipment inspection (PSI). If there is an issue with ATA5577M1250-DDT, 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 ATA5577M1250-DDT part is unused and in its original packaging.
Return procedure for ATA5577M1250-DDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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