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Microchip Technology ATA5577M233SC-DBB
- Part No.:
- ATA5577M233SC-DBB
- Manufacturer:
- Microchip Technology
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
ATA5577M233SC-DBB.pdf
- Description:
- RFID TAG R/W 100-150KHZ ENCAP
- Quantity:
- Payment:
- Shipping:
Inventory:1,670
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Product details
Overview
ATA5577M233SC-DBB from Microchip Technology is a contactless read/write LF RFID identification IC operating at 125 kHz/134 kHz, featuring 363-bit EEPROM (11 × 33-bit blocks), load-modulation uplink, and OOK/PIE downlink decoding. It serves as the core transponder IC in passive RFID tags for access control, animal identification, and industrial asset tracking.
For engineers reviewing the ATA5577M233SC-DBB datasheet, ATA5577M233SC-DBB pinout, ATA5577M233SC-DBB application, or ATA5577M233SC-DBB equivalent, this page delivers verified technical context, exact memory mapping, modulation protocol support (Manchester, FSK, PSK, NRZ), configuration register behavior, and real-world compatibility with T5557/ATA5567 systems.
Technical Context
The ATA5577M233SC-DBB integrates an analog front end with on-chip rectifier, clock extractor, field gap detector, and switchable resistive load between Coil 1 and Coil 2 for bidirectional communication. Its HV generator enables EEPROM programming via RF field coupling without external power.
It supports two operational modes: Basic mode (fixed data rates: RF/8 to RF/128) and Extended mode (binary-selectable rates from RF/2 to RF/128), with configurable modulation schemes including Manchester, Bi-phase, FSK, PSK, and NRZ - each selectable per block via Configuration register settings.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 125 kHz / 134 kHz carrier - optimized for ISO/IEC 11784/11785-compliant LF RFID reader systems |
| EEPROM Capacity | 363 bits (11 blocks × 33 bits) - includes 7×32-bit user memory, 2×32-bit unique ID, 1×32-bit Option register, 1×32-bit Configuration register |
| Uplink Modulation | Resistive load modulation - enables tag-to-reader data transmission by damping RF field between Coil 1 and Coil 2 |
| Downlink Protocol | OOK Pulse Interval Encoding (PIE) - decodes base station commands using 100% amplitude-modulated field gaps |
| Data Rate Options | RF/2 to RF/128 (Extended mode) or fixed RF/8–RF/128 (Basic mode) - binary-selectable or preset for reliable demodulation under varying coil Q |
| Memory Protection | Per-block lock bit + password mode + OTP functionality - prevents unauthorized write access to EEPROM blocks including password and ID fields |
| Antenna Interface | Two-terminal coil interface with on-chip 250 pF/330 pF trimmed capacitor - eliminates need for external tuning capacitor in most antenna designs |
Pinout & Package
ATA5577M233SC-DBB uses a bare die (chip-on-foil) format with 200 μm × 400 μm bond pads optimized for direct coil bonding. No leadframe or molded package is present; electrical connection is made exclusively via Coil 1 and Coil 2 terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Coil 1 | RF input / power harvesting node | Primary terminal for AC coil voltage rectification and DC supply generation; also used for load modulation during uplink |
| Coil 2 | RF return / modulation load node | Completes coil loop; internal switchable resistor connects between Coil 1 and Coil 2 to enable load modulation for uplink data transmission |
Key Features
| Feature | Design Value |
|---|---|
| ISO/IEC 11784/11785 compatibility | Configurable via Option register - enables compliance with animal ID standards without hardware change |
| Soft modulation switching | Reduces clock loss in high-Q antenna systems - prevents timing violations during modulation state transitions |
| Answer-On-Request (AOR) mode | Enables anti-collision in multi-tag environments - tag remains silent until addressed with valid wake-up command |
| OTP lock with master key = 6 | Permanently disables reprogramming - ensures immutable configuration and traceability data after final programming |
| Traceability data structure | Factory-programmed 40-bit unique ID + ACL/MFC/CID/ICR - provides wafer-level traceability per ISO/IEC 15963-1 and ISO/IEC 7816-6 |
Applications
| Access Control Systems | Animal Identification Tags |
|---|---|
Use Scenario: Secure door entry using passive RFID credentials embedded in cards or fobs. IC Role / Device Role / Timing Role: ATA5577M233SC-DBB acts as the transponder IC, receiving power and commands from 125 kHz reader antennas and transmitting encrypted ID data via load modulation. Use Value: Supports password-protected write access and AOR mode to prevent cloning and enable selective interrogation in multi-card environments. | Use Scenario: Implantable or ear-tag RFID for livestock and companion animals compliant with ISO 11784/11785. IC Role / Device Role / Timing Role: ATA5577M233SC-DBB stores permanent 40-bit unique ID and manufacturer traceability data in factory-locked blocks, transmitted on reader request. Use Value: Factory-programmed ACL = E0h and MFC = 15h ensure regulatory compliance; OTP lock prevents tampering with animal identity data. |
| Waste Management Bin Tags | Industrial Asset Tracking |
Use Scenario: Reusable RFID tags affixed to municipal waste containers for automated collection route optimization. IC Role / Device Role / Timing Role: ATA5577M233SC-DBB operates in harsh outdoor environments using high-Q coil designs, leveraging soft modulation switching to maintain timing integrity across temperature swings. Use Value: On-chip 250 pF/330 pF capacitor reduces component count; extended mode supports fast downlink (~6 kbps) for rapid batch reads during drive-by scanning. | Use Scenario: Tooling and equipment tagging in manufacturing plants where metal proximity degrades RF performance. IC Role / Device Role / Timing Role: ATA5577M233SC-DBB functions as a ruggedized transponder with configurable AFE options (gap detection level, clamp voltage) to maintain reliable operation near conductive surfaces. Use Value: Adjustable downlink timing and improved field tolerance allow stable communication even with detuned antennas caused by metallic enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LF RFID transponder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| T5557 | Same 363-bit EEPROM architecture and PIE downlink protocol; lacks OTP lock, soft modulation, and ISO 11784/11785 configuration bits | No factory-programmed traceability data or AOR mode; requires external capacitor for antenna tuning | Select when legacy system compatibility is required and advanced security features are unnecessary |
| ATA5567 | Identical pinout and memory map; differs in default configuration - ATA5567 ships with Basic mode only, while ATA5577M233SC-DBB supports Extended mode out-of-box | Limited to fixed data rates unless reconfigured; no built-in 250/330 pF capacitor option | Choose for cost-sensitive deployments where binary data rate selection and integrated capacitor are not needed |
Compared with T5557 and ATA5567, the ATA5577M233SC-DBB provides enhanced design flexibility through factory-configurable AFE options, OTP locking, and native ISO/IEC 11784/11785 support - reducing qualification effort for regulated animal ID and access control systems.
Availability
ATA5577M233SC-DBB is available at Aetrix Electronics and suitable for access control systems, animal identification tags, and industrial asset tracking requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ATA5577M233SC-DBB 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 secure authentication solutions for industrial, automotive, and IoT applications.
The ATA5577 family is designed specifically for passive LF RFID transponder applications, emphasizing interoperability with legacy T5557 systems while adding modern security, configurability, and regulatory compliance features.
FAQ
What is the primary function of the ATA5577M233SC-DBB in an RFID system?
The ATA5577M233SC-DBB serves as a contactless read/write identification IC that forms the core of passive LF RFID transponders. It harvests power from a 125 kHz or 134 kHz reader field, stores 363 bits of data in EEPROM, and communicates via load modulation (uplink) and OOK/PIE decoding (downlink). In every operational instance, the ATA5577M233SC-DBB enables secure, battery-free identification in applications ranging from access control to animal tagging.
Does the ATA5577M233SC-DBB require an external capacitor for antenna tuning?
No, the ATA5577M233SC-DBB integrates a factory-trimmed on-chip capacitor of either 250 pF or 330 pF (±3%), eliminating the need for an external tuning capacitor in most antenna designs. This feature simplifies PCB or foil-based tag construction and improves production yield. The specific value is determined by the die variant (M1 vs M2) and is fixed at manufacture - the ATA5577M233SC-DBB corresponds to the M2 variant with 330 pF capacitance.
How does the ATA5577M233SC-DBB support ISO/IEC 11784 and 11785 compliance?
The ATA5577M233SC-DBB supports ISO/IEC 11784/11785 compliance through configurable AFE Option register settings and factory-programmed traceability data. Blocks 1 and 2 of Page 1 contain a 40-bit unique ID prefixed with ACL = E0h and MFC = 15h, conforming to ISO/IEC 15963-1 and ISO/IEC 7816-6. The Option register allows fine-tuning of downlink timing and modulation parameters to meet standard-specific field strength and timing requirements - all without hardware modification.
What memory protection mechanisms are implemented in the ATA5577M233SC-DBB?
The ATA5577M233SC-DBB implements three layers of memory protection: (1) per-block lock bits that permanently disable writes to individual 33-bit EEPROM blocks, (2) password mode requiring a 32-bit match against Block 7 before programming, and (3) One-Time-Programmable (OTP) functionality activated when the master key is set to 6 - which locks all configuration and traceability data irreversibly. These features ensure data integrity and prevent unauthorized cloning or reprogramming of the ATA5577M233SC-DBB in deployed systems.
Can the ATA5577M233SC-DBB operate reliably near metal surfaces?
Yes, the ATA5577M233SC-DBB includes adaptive AFE options - such as adjustable clamp voltage, modulation voltage, and field gap detection thresholds - that can be programmed into its Option register to maintain reliable operation in electrically noisy or metal-proximate environments. When paired with a properly tuned high-Q antenna, the ATA5577M233SC-DBB's soft modulation switching and improved downlink timing further mitigate timing violations caused by detuning effects, making it suitable for industrial asset tracking on metal fixtures.
ATA5577M233SC-DBB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Style:
- Encapsulated
- Technology:
- Passive
- Frequency:
- 100kHz ~ 150kHz
- Memory Type:
- Read/Write
- Writable Memory:
- 363b (User)
- Standards:
- ISO 11784, ISO 11785
- Operating Temperature:
- -40°C ~ 85°C
- Size / Dimension:
- 0.053" L x 0.039" W (1.36mm x 1.00mm)
ATA5577M233SC-DBB FAQ
1.How can I place an order for ATA5577M233SC-DBB through Aetrix?
Please submit a Request for Quotation (RFQ) for ATA5577M233SC-DBB 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 ATA5577M233SC-DBB reliable?
The price and inventory of ATA5577M233SC-DBB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATA5577M233SC-DBB is usually 5 days.
3.What payment methods are accepted for ATA5577M233SC-DBB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATA5577M233SC-DBB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATA5577M233SC-DBB?
ATA5577M233SC-DBB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATA5577M233SC-DBB 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 ATA5577M233SC-DBB?
For technical support, including ATA5577M233SC-DBB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATA5577M233SC-DBB requirements.
6.How does Aetrix verify that ATA5577M233SC-DBB is sourced from the original manufacturer or authorized distributors?
All ATA5577M233SC-DBB 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 ATA5577M233SC-DBB meets industry standards.
7.What is the process for return or replacement of ATA5577M233SC-DBB?
All ATA5577M233SC-DBB units undergo pre-shipment inspection (PSI). If there is an issue with ATA5577M233SC-DBB, 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 ATA5577M233SC-DBB part is unused and in its original packaging.
Return procedure for ATA5577M233SC-DBB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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