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Microchip Technology ATA5577M133SC-DDB
- Part No.:
- ATA5577M133SC-DDB
- Manufacturer:
- Microchip Technology
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
ATA5577M133SC-DDB.pdf
- Description:
- RFID TAG R/W 100-150KHZ ENCAP
- Quantity:
- Payment:
- Shipping:
Inventory:2,755
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Product details
Overview
ATA5577M133SC-DDB from Microchip Technology is a contactless read/write LF RFID identification IC operating at 125 kHz or 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 ATA5577M133SC-DDB datasheet, ATA5577M133SC-DDB pinout, ATA5577M133SC-DDB application, or ATA5577M133SC-DDB equivalent, key selection criteria include ISO/IEC 11784/785 configurability, T5557/ATA5567 compatibility, soft modulation switching, OTP capability, and pad-optimized bonding geometry for coil integration.
Technical Context
The ATA5577M133SC-DDB implements a fully integrated analog front end with on-chip rectifier, clock extractor, field gap detector, and switchable resistive load between Coil 1 and Coil 2 for uplink modulation. Its HV generator enables EEPROM programming without external high-voltage sources.
It supports two operational modes: Basic mode with fixed data rates (RF/8 to RF/128) and Extended mode with binary-selectable rates (RF/2 to RF/128), configurable modulation schemes (Manchester, Bi-phase, FSK, PSK, NRZ), and features including password protection, AOR (Answer-On-Request), and inverse data output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 125 kHz or 134 kHz - matches standard LF RFID reader field frequencies for global compliance. |
| EEPROM Capacity | 363 bits (11 blocks × 33 bits) - includes 7×32-bit user memory, 2×32-bit unique ID, 1×32-bit option register, and 1×32-bit configuration register. |
| Uplink Modulation | Resistive load modulation - enables bidirectional communication using single coil; no external components required. |
| Downlink Protocol | 100% OOK Pulse Interval Encoding (PIE) - decodes reader commands via field gap timing; supports fast (~6 kbps) and standard (~3 kbps) modes. |
| Memory Protection | Per-block lock bit + OTP mode - prevents reprogramming of locked blocks; OTP bit + master key = permanent write-protection. |
| Pad Configuration | 200 μm × 400 μm - optimized for direct coil bonding, enabling compact tag designs with minimal parasitic inductance. |
| ISO Compatibility | Configurable for ISO/IEC 11784/785 - supports animal ID standards via EEPROM-configurable modulation and data format. |
Pinout & Package
ATA5577M133SC-DDB uses a die-only chip-scale package with two bond pads: Coil 1 and Coil 2. No external power supply or digital interface pins are present - all operation is powered and communicated through the resonant LC tank formed by the external coil and on-chip 250 pF/330 pF trimmed capacitor.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Coil 1 | RF input/output terminal | Connects to one end of external antenna coil; forms resonant tank with internal capacitor and supplies power via rectification. |
| Coil 2 | RF input/output terminal | Connects to other end of external antenna coil; enables load modulation for uplink data transmission. |
Key Features
| Feature | Design Value |
|---|---|
| Soft modulation switching | Reduces clock loss during modulation transitions - critical for stable operation with high-Q antennas in metal-rich environments. |
| On-chip trimmed capacitor | 250 pF or 330 pF (±3%) - eliminates need for external tuning capacitor, simplifying tag layout and improving production yield. |
| Answer-On-Request (AOR) | Enables anti-collision by delaying modulation until wake-up command - allows selective activation of multiple tags in same RF field. |
| Extended Mode (X-mode) | Activates binary bit-rate generator, inverse data output, and fast downlink - expands protocol flexibility beyond T5557 baseline functionality. |
| Traceability data structure | Factory-programmed 40-bit unique ID with lot/wafer/die encoding - satisfies traceability requirements for regulated animal ID and industrial tagging. |
Applications
| Access Control Systems | Animal Identification Tags |
|---|---|
Use Scenario: Contactless door entry systems using handheld or wall-mounted LF readers. IC Role / Device Role / Timing Role: Passive transponder IC storing encrypted credential data and responding to reader interrogation via load modulation. Use Value: Enables secure, battery-free credentials with programmable password protection and blockwise write-locking to prevent cloning. | Use Scenario: Implantable or ear-tag RFID for livestock, pets, and wildlife tracking. IC Role / Device Role / Timing Role: ISO/IEC 11784/785-compliant IDIC providing globally standardized 64-bit unique identifier with factory-traceable die data. Use Value: Meets regulatory mandates for animal ID via preprogrammed ACL/MFC/CID fields and tamper-resistant OTP locking of traceability blocks. |
| Waste Management Tags | Industrial Asset Tracking |
Use Scenario: Reusable bin/tote tags scanned during collection route verification. IC Role / Device Role / Timing Role: Ruggedized transponder IC with high Q-antenna tolerance and configurable init delay (~67 ms) for reliable read in noisy EMI environments. Use Value: Maintains read reliability across temperature extremes and mechanical stress due to soft modulation and adaptive AFE options. | Use Scenario: Tooling, pallet, or container identification in factory automation and logistics. IC Role / Device Role / Timing Role: Read/write IDIC supporting field-updatable data (e.g., maintenance logs, calibration dates) via password-protected direct access mode. Use Value: Extends tag lifetime beyond read-only alternatives by enabling secure in-field reprogramming without physical replacement. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LF RFID transponder IC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| T5557 | Lacks OTP mode, soft modulation, and extended data-rate granularity; no factory-programmed traceability data. | Suitable for cost-sensitive, non-regulated access cards where ISO compliance and long-term traceability are not required. | Select T5557 only when backward compatibility with legacy readers and minimal feature set suffice. |
| ATA5567 | Shares identical register map and basic functionality but omits X-mode features (fast downlink, inverse output) and has different pad geometry (100 μm × 100 μm). | Better suited for wire-bonded tags with space-constrained layouts; lacks direct-coil-bonding optimization of ATA5577M133SC-DDB. | Choose ATA5567 for wire-bond assembly or when lower-cost sourcing is prioritized over advanced modulation control. |
Compared with T5557 and ATA5567, the ATA5577M133SC-DDB delivers enhanced protocol flexibility (X-mode), stronger security (OTP + password + AOR), and superior manufacturability (200 μm × 400 μm pads for robust coil bonding), making it optimal for new designs requiring regulatory compliance and field-upgradability.
Availability
ATA5577M133SC-DDB is available at Aetrix Electronics and suitable for access control systems, animal identification tags, and industrial asset tracking requiring stable component supply, full lifecycle support, and traceable sourcing.
Supply support for ATA5577M133SC-DDB 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 manufacturer specializing in microcontrollers, analog devices, and secure identification solutions.
The ATA5577 family is designed specifically for passive low-frequency RFID transponders, emphasizing interoperability with legacy T5557 infrastructure while adding ISO/IEC 11784/785 compliance, enhanced security, and manufacturing traceability.
FAQ
What is the primary function of the ATA5577M133SC-DDB in an RFID system?
The ATA5577M133SC-DDB serves as a contactless read/write identification IC that functions as the transponder (tag) in passive LF RFID systems. It derives power from the reader's RF field, stores 363 bits of EEPROM data, and communicates via load modulation on its Coil 1 and Coil 2 terminals. The ATA5577M133SC-DDB supports both Basic and Extended modes, enabling flexible configuration for applications ranging from access control to ISO-compliant animal ID.
Does the ATA5577M133SC-DDB require an external power supply or voltage regulator?
No, the ATA5577M133SC-DDB operates entirely from energy harvested from the reader's 125 kHz or 134 kHz RF field. Its integrated analog front end includes a rectifier and DC supply circuit that converts coil-induced AC into usable internal voltage. No external power supply, battery, or voltage regulator is needed - the ATA5577M133SC-DDB is a true passive transponder IC.
How does the ATA5577M133SC-DDB achieve ISO/IEC 11784/785 compliance?
The ATA5577M133SC-DDB achieves ISO/IEC 11784/785 compliance through configurable EEPROM registers that define modulation type, data rate, and frame structure. Blocks 1 and 2 of Page 1 contain factory-programmed traceability data with Allocation Class (E0h), Manufacturer Code (15h), Chip ID (00001b), and 40-bit unique ID - all aligned to ISO/IEC 15963-1 and ISO/IEC 7816-6. Configuration register settings enable proper encoding of the 64-bit animal ID code per standard.
What is the significance of the "M133" suffix in ATA5577M133SC-DDB?
"M133" identifies the specific die variant and pad configuration: "M1" denotes the ATA5577M1 chip ID (as confirmed in the traceability data structure), "33" indicates the 200 μm × 400 μm pad geometry optimized for direct coil bonding, and "SC-DDB" specifies the tape-and-reel packaging and device grade. This distinguishes it from the ATA5577M2C variant (200 μm × 400 μm, different CID) and the ATA5577M1C variant (100 μm × 100 μm for wire bonding).
Can the ATA5577M133SC-DDB be used as a drop-in replacement for the T5557 in existing designs?
The ATA5577M133SC-DDB is functionally compatible with the T5557 and shares identical Configuration register mapping and Basic mode behavior, but it is not a guaranteed pin-compatible or drop-in replacement. Differences include pad size (200 μm × 400 μm vs. T5557's typical 100 μm × 100 μm), added X-mode features, and factory-programmed traceability blocks. Successful substitution requires validation of coil bonding process, reader protocol timing, and EEPROM initialization sequence - the ATA5577M133SC-DDB must be verified in-system before deployment.
ATA5577M133SC-DDB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Obsolete
- 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:
- 0.045" L x 0.039" W (1.15mm x 1.00mm)
ATA5577M133SC-DDB FAQ
1.How can I place an order for ATA5577M133SC-DDB through Aetrix?
Please submit a Request for Quotation (RFQ) for ATA5577M133SC-DDB 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 ATA5577M133SC-DDB reliable?
The price and inventory of ATA5577M133SC-DDB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATA5577M133SC-DDB is usually 5 days.
3.What payment methods are accepted for ATA5577M133SC-DDB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATA5577M133SC-DDB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATA5577M133SC-DDB?
ATA5577M133SC-DDB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATA5577M133SC-DDB 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 ATA5577M133SC-DDB?
For technical support, including ATA5577M133SC-DDB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATA5577M133SC-DDB requirements.
6.How does Aetrix verify that ATA5577M133SC-DDB is sourced from the original manufacturer or authorized distributors?
All ATA5577M133SC-DDB 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 ATA5577M133SC-DDB meets industry standards.
7.What is the process for return or replacement of ATA5577M133SC-DDB?
All ATA5577M133SC-DDB units undergo pre-shipment inspection (PSI). If there is an issue with ATA5577M133SC-DDB, 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 ATA5577M133SC-DDB part is unused and in its original packaging.
Return procedure for ATA5577M133SC-DDB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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