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Microchip Technology ATA5577M233SC-DBQ
- Part No.:
- ATA5577M233SC-DBQ
- Manufacturer:
- Microchip Technology
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
ATA5577M233SC-DBQ.pdf
- Description:
- RFID TAG R/W 100-150KHZ ENCAP
- Quantity:
- Payment:
- Shipping:
Inventory:4,117
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Product details
Overview
ATA5577M233SC-DBQ 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 ID, and industrial asset tracking.
For engineers reviewing the ATA5577M233SC-DBQ datasheet, ATA5577M233SC-DBQ pinout, ATA5577M233SC-DBQ application, or ATA5577M233SC-DBQ equivalent, this page delivers verified technical context, exact memory mapping, modulation protocol support (Manchester, FSK, PSK, NRZ), ISO/IEC 11784/785 configurability, and real-world selection guidance against T5557 and ATA5567.
Technical Context
The ATA5577M233SC-DBQ 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 RF communication. Its HV generator enables EEPROM programming via RF field only - no external voltage required.
It supports two operational modes: Basic mode (fixed data rates RF/8 to RF/128) and Extended mode (binary-selectable rates RF/2 to RF/128), with configurable modulation schemes including Manchester, Bi-phase, FSK, PSK, and NRZ. The AFE Option register (page 1, block 3) and Configuration register (page 0, block 0) are preprogrammed at delivery per DS70005357B-page 44.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| RF Frequency Range | 125 kHz / 134 kHz - optimized for ISO/IEC 11784/785 low-frequency RFID systems with high-Q antenna tolerance. |
| 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, and lock bits per block. |
| Uplink Modulation | Resistive load modulation - enables tag-to-reader data transmission by damping RF field between Coil 1 and Coil 2 terminals. |
| Downlink Protocol | 100% OOK Pulse Interval Encoding (PIE) - decodes reader commands using field gap timing; supports Fast Downlink (~6 kbps) in Extended mode. |
| Memory Protection | Per-block lock bit + OTP mode - once locked or enabled, blocks (including lock bits) are permanently write-protected via RF field only. |
| Power Source | Contactless RF coupling - no battery or external supply; DC supply generated on-chip from coil AC voltage via integrated rectifier. |
| Antenna Interface | Two-terminal coil interface (Coil 1 / Coil 2) - supports direct bonding with 200 μm × 400 μm pads (M2 pad type); includes on-chip 250 pF/330 pF ±3% trim capacitor. |
Pinout & Package
ATA5577M233SC-DBQ uses a bare-die chip-scale package with M2 pad configuration (200 μm × 400 μm) for direct coil bonding. No encapsulated package or leadframe is present - it is designed for flip-chip or wire-bond integration into RFID inlays.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Coil 1 | RF input / power rectification node | One terminal of resonant LC tank; connects to external antenna coil; participates in on-chip rectification and clock extraction. |
| Coil 2 | RF return / modulation load node | Second coil terminal; forms switchable resistive load path with Coil 1 for uplink data transmission via load modulation. |
Key Features
| Feature | Design Value |
|---|---|
| ISO/IEC 11784/785 Configurability | Enabled via Option register settings - allows compliance with animal identification standards without hardware change. |
| Soft Modulation Switching | Reduces clock loss during modulation onset - critical for stable operation with high-Q antennas in access control readers. |
| Password-Protected Programming | 32-bit password stored in block 7 - prevents unauthorized EEPROM writes; requires matching password before any block programming. |
| Answer-On-Request (AOR) Mode | Enables anti-collision in multi-tag fields - tag remains silent until addressed with valid wake-up command (opcode + password). |
| Traceability Data Structure | Factory-programmed 40-bit unique ID in page 1 blocks 1–2 - includes year/quarter, lot number, wafer #, and die position for full traceability. |
Applications
| Access Control Systems | Animal Identification Tags |
|---|---|
|
Use Scenario: Secure door entry using passive RFID proximity cards or fobs deployed in commercial buildings and secure facilities. IC Role / Device Role / Timing Role: Core transponder IC storing credential data and responding to reader interrogation via load modulation at 125 kHz. Use Value: Enables tamper-resistant, battery-free credentials with programmable password protection and block-wise write locking for credential updates. |
Use Scenario: Implantable or ear-tag RFID devices for livestock, pets, and wildlife tracking compliant with ISO/IEC 11784/785. IC Role / Device Role / Timing Role: Certified LF IDIC providing globally standardized 134.2 kHz operation, unique factory-traceable UID, and extended read range via high-Q antenna optimization. Use Value: Meets regulatory requirements for animal ID with pre-programmed ACL/MFC/CID fields and immutable traceability data in page 1. |
| Waste Management Bin Tags | Industrial Asset Tracking |
|
Use Scenario: RFID-enabled waste collection bins monitored via handheld or vehicle-mounted readers for route optimization and fill-level analytics. IC Role / Device Role / Timing Role: Ruggedized transponder IC operating reliably in outdoor environments with variable coil coupling and temperature shifts. Use Value: High Q-antenna tolerance and configurable AFE options ensure consistent read performance across diverse metal/non-metal bin materials and mounting conditions. |
Use Scenario: Tool, container, or equipment tagging in manufacturing plants where metal-rich environments degrade standard HF/UHF RFID performance. IC Role / Device Role / Timing Role: Low-frequency transponder IC immune to electromagnetic interference and metallic detuning, enabling reliable reads near machinery and steel structures. Use Value: 125 kHz operation combined with soft modulation switching and demodulation delay ensures robust downlink decoding in electrically noisy industrial settings. |
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 | Same 363-bit EEPROM structure and PIE downlink; lacks OTP mode, Fast Downlink, and inverse data output; no factory-programmed traceability data. | Legacy system compatibility only; not ISO/IEC 11784/785 certified out-of-box; requires external UID management. | Select T5557 only for cost-sensitive retrofits where Extended mode features and traceability are unnecessary. |
| ATA5567 | Pin-compatible predecessor; identical pad layout and memory map; missing AFE Option register enhancements and improved init delay control. | Functional drop-in for existing ATA5567 designs; cannot leverage ATA5577M233SC-DBQ's soft modulation switching or enhanced downlink timing. | Choose ATA5567 only for legacy production continuity; ATA5577M233SC-DBQ offers measurable reliability gains in high-Q antenna systems. |
Compared with T5557 and ATA5567, the ATA5577M233SC-DBQ delivers verified ISO/IEC 11784/785 compliance, factory-traceable UID, OTP lockdown, and adaptive AFE tuning - making it the preferred choice for new animal ID, access control, and industrial tagging designs requiring long-term firmware and data integrity.
Availability
ATA5577M233SC-DBQ is available at Aetrix Electronics and suitable for access control systems, animal identification tags, and industrial asset tracking requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for ATA5577M233SC-DBQ 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 global semiconductor company specializing in microcontrollers, analog devices, and secure identification solutions, with headquarters in Chandler, Arizona.
The ATA5577 family is engineered specifically for passive low-frequency RFID transponders - delivering robust, battery-free identification for animal ID, access control, and industrial tagging under demanding environmental and regulatory conditions.
FAQ
What is the primary function of the ATA5577M233SC-DBQ in an RFID system?
The ATA5577M233SC-DBQ functions as a contactless read/write identification IC that forms the core of passive LF RFID transponders. It derives power and communicates bidirectionally via a single coil interface, storing and transmitting identity data using load modulation (uplink) and decoding OOK/PIE commands (downlink). Its role is strictly as a transponder IC - not a reader or controller - and it operates exclusively at 125 kHz or 134 kHz depending on system configuration.
Does the ATA5577M233SC-DBQ support ISO/IEC 11784/785 compliance out of the box?
Yes, the ATA5577M233SC-DBQ supports ISO/IEC 11784/785 compliance through configurable AFE and modulation settings stored in its EEPROM Option and Configuration registers. Factory-traceable UID data in page 1 blocks 1–2 include mandatory Allocation Class (E0h) and Manufacturer Code (15h), satisfying structural requirements. Full compliance requires correct register programming per application - no hardware modification is needed.
How does the ATA5577M233SC-DBQ handle power supply and EEPROM programming?
The ATA5577M233SC-DBQ requires no external power source. It generates its internal DC supply via on-chip rectification of the RF field applied across Coil 1 and Coil 2. EEPROM programming is performed entirely through the RF field using an integrated HV generator - no additional programming voltage is required. Write operations occur blockwise (33 bits), and each block includes a lock bit preventing further writes once set.
What are the key differences between Basic mode and Extended mode on the ATA5577M233SC-DBQ?
Basic mode supports fixed data rates (RF/8 to RF/128) and standard modulation schemes (Manchester, FSK, PSK). Extended mode enables binary-selectable data rates (RF/2 to RF/128), Fast Downlink (~6 kbps), OTP lockdown, inverse data output, and sequence terminator support. Activation requires master key = 6 or 9 in block 0 - key = 6 disables test mode access while preserving Extended mode functionality.
Is the ATA5577M233SC-DBQ pin-compatible with the T5557 or ATA5567?
Yes, the ATA5577M233SC-DBQ shares identical M2 pad geometry (200 μm × 400 μm) and functional pinout (Coil 1 / Coil 2) with the T5557 and ATA5567, enabling direct replacement in existing layouts. However, Extended mode features and factory-programmed traceability data require updated firmware initialization - electrical and mechanical compatibility is confirmed, but full feature parity requires register reconfiguration.
ATA5577M233SC-DBQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- 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-DBQ FAQ
1.How can I place an order for ATA5577M233SC-DBQ through Aetrix?
Please submit a Request for Quotation (RFQ) for ATA5577M233SC-DBQ 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-DBQ reliable?
The price and inventory of ATA5577M233SC-DBQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATA5577M233SC-DBQ is usually 5 days.
3.What payment methods are accepted for ATA5577M233SC-DBQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATA5577M233SC-DBQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATA5577M233SC-DBQ?
ATA5577M233SC-DBQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATA5577M233SC-DBQ 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-DBQ?
For technical support, including ATA5577M233SC-DBQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATA5577M233SC-DBQ requirements.
6.How does Aetrix verify that ATA5577M233SC-DBQ is sourced from the original manufacturer or authorized distributors?
All ATA5577M233SC-DBQ 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-DBQ meets industry standards.
7.What is the process for return or replacement of ATA5577M233SC-DBQ?
All ATA5577M233SC-DBQ units undergo pre-shipment inspection (PSI). If there is an issue with ATA5577M233SC-DBQ, 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-DBQ part is unused and in its original packaging.
Return procedure for ATA5577M233SC-DBQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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