Microchip Technology ATA5577M1330C-PPMY
- Part No.:
- ATA5577M1330C-PPMY
- Manufacturer:
- Microchip Technology
- Category:
- RFID Transponders, Tags
- Package:
- Datasheet:
-
ATA5577M1330C-PPMY.pdf
- Description:
- RFID TAG R/W 125KHZ ENCAP
- Quantity:
- Payment:

- Shipping:

Inventory:4,449
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Product details
Overview
ATA5577M1330C-PPMY from Microchip (formerly Atmel) is a 125 kHz contactless read/write identification transponder (IDIC®) in a plastic brick package with integrated ferrite-core coil antenna. It features 363-bit EEPROM (11 × 33-bit blocks), Manchester/FSK/PSK modulation support, RF/32 default data rate, and password-protected write access. Used in secure access control systems requiring field-programmable, tamper-resistant RFID tags.
For engineers reviewing the ATA5577M1330C-PPMY datasheet, ATA5577M1330C-PPMY pinout, ATA5577M1330C-PPMY application, or ATA5577M1330C-PPMY equivalent, key selection criteria include 125 kHz carrier frequency compatibility, EEPROM block-locking capability, downlink protocol flexibility (ASK/FSK/PSK/Manchester), and preconfigured AFE settings for reliable read/write at variable field strengths.
Technical Context
The ATA5577M1330C-PPMY integrates an on-chip 363-bit EEPROM organized into 11 blocks of 33 bits each (32 data + 1 lock bit), with two dedicated blocks for unique ID, one for password, and one for analog front-end configuration. Its tuned LC circuit-comprising the embedded 4.5 mH ferrite coil and internal capacitor-resonates at 125 kHz (120–130 kHz range) to enable contactless power harvesting and bidirectional communication via load modulation.
Downlink decoding supports multiple protocols including Manchester, bi-phase, NRZ, and PSK, with programmable data rates from RF/2 to RF/128. The IC operates in quiet mode below 2 A/m field strength, initiates modulation above 14.5 A/m (read), and requires ≥29 A/m for programming-enabling robust operation across varying reader field intensities and environmental conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Operating Frequency | 125 kHz nominal (120–130 kHz range); enables interoperability with standard LF RFID readers compliant to ISO/IEC 18000-2 and EM4100 protocols. |
| EEPROM Capacity | 363 bits total (11 × 33-bit blocks); supports user memory (7 × 32-bit), dual UID (2 × 32-bit), password (1 × 32-bit), AFE config (1 × 32-bit), and config register (1 × 32-bit). |
| Modulation Support | ASK, FSK, PSK, Manchester, bi-phase, NRZ; allows protocol adaptation to legacy and proprietary reader systems without hardware change. |
| Data Rate Range | RF/2 to RF/128 (binary selectable); provides trade-off between read speed (~6 kbit/s fast downlink) and noise immunity in electrically noisy environments. |
| Field Strength Thresholds | Read: ≥14.5 A/m; Write: ≥29 A/m; Quiet mode: ≤2 A/m; ensures stable operation across diverse reader antenna geometries and coupling distances. |
| Temperature Range | –40°C to +85°C operating; –40°C to +125°C storage; suitable for industrial access panels, vehicle key fobs, and outdoor asset tags. |
Pinout & Package
ATA5577M1330C-PPMY is a fully encapsulated transponder module with no external pins or terminals. Power and communication occur exclusively via its integrated ferrite-core coil antenna. The device uses a single-coil, inductively coupled interface-no physical pinout exists.
Key Features
| Feature | Design Value |
|---|---|
| Preconfigured AFE Register | Block 3 (page 1) factory-set to 0x6DC00000 for soft modulation, high clamp, low modulation voltage-optimized for reliable first-read performance without customer tuning. |
| Default Configuration Register | Block 0 (page 0) preprogrammed to 0x00088040: RF/32 data rate + Manchester coding + MaxBlock = 2-enables immediate plug-and-play integration with common readers. |
| Block-wise Write Protection | Per-block lock bit (1 per 33-bit block) prevents accidental or unauthorized overwrites while allowing selective reprogramming of unlocked blocks. |
| Password-Protected Write Access | 32-bit password stored in dedicated EEPROM block; required before write commands are accepted-adds cryptographic barrier against cloning or tampering. |
Applications
| Access Control Key Fob | Industrial Asset Tag |
|---|---|
Use Scenario: Encapsulated in plastic housing for employee badge or vehicle key fob used daily in office building entry systems. IC Role / Device Role / Timing Role: Contactless IDIC® transponder providing secure, battery-free identification via 125 kHz magnetic coupling. Use Value: Preconfigured Manchester/RF/32 mode ensures instant compatibility with existing HID Prox and similar readers; password lock prevents credential duplication. | Use Scenario: Embedded in metal-mountable housing for tracking CNC machines, tooling carts, or calibration equipment in factory environments. IC Role / Device Role / Timing Role: Ruggedized LF RFID tag delivering UID and maintenance history data under vibration, temperature cycling, and EMI exposure. Use Value: Ferrite-core coil sustains >5 cm read distance despite nearby metallic surfaces; EEPROM lock bits preserve calibration timestamps across service cycles. |
| Secure Document Authentication | Medical Equipment ID Tag |
Use Scenario: Integrated into tamper-evident document sleeves or smart ID cards for government-issued credentials. IC Role / Device Role / Timing Role: Read/write IDIC® storing encrypted serial number, issue date, and revocation flag in protected EEPROM blocks. Use Value: Dedicated password block and per-block locking enable multi-tiered access: public UID read, authorized write-only update, and locked audit log. | Use Scenario: Affixed to MRI-compatible surgical instruments or infusion pumps requiring sterilization-cycle endurance and non-magnetic tagging. IC Role / Device Role / Timing Role: Passive 125 kHz transponder delivering unique device ID and firmware version during pre-use verification scans. Use Value: –40°C to +85°C rating survives autoclave pre-conditioning; 363-bit EEPROM stores manufacturer, model, and last-calibration timestamp without battery dependency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LF RFID transponder applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| EM4100 (EM Microelectronic) | Read-only 128-bit ROM; no EEPROM, no password, no programmable modulation; fixed Manchester/RF/64. | Limited to static ID distribution (e.g., basic door access); no field-updatable data or security features. | Select when cost sensitivity outweighs need for reprogramming or security-requires reader compatibility validation. |
| T5557 (Atmel/Microchip) | 330-bit EEPROM (10 × 33-bit); same AFE register structure but lacks OTP functionality and fast downlink (~3 kbit/s only); no preconfigured PPMY delivery state. | Suitable for legacy system upgrades where existing T5557 infrastructure exists; requires full AFE reconfiguration for optimal performance. | Select when migrating from T5557 designs and retaining identical EEPROM layout; verify reader timing tolerance for slower downlink. |
Compared with EM4100 and T5557, the ATA5577M1330C-PPMY delivers higher memory capacity (363 vs. 128/330 bits), factory-tuned AFE settings for immediate deployment, and faster downlink speed-making it optimal for new secure, field-programmable LF RFID deployments where time-to-integration and tamper resistance matter.
Availability
ATA5577M1330C-PPMY is available at Aetrix Electronics and suitable for access control systems, industrial asset tracking, and secure document authentication requiring stable component supply, long-term lifecycle support, and consistent preconfigured behavior across production batches.
Supply support for ATA5577M1330C-PPMY 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. (acquired Atmel in 2016) is a leading provider of microcontrollers, analog devices, and secure authentication solutions, serving industrial, automotive, and IoT markets with vertically integrated silicon and software platforms.
The ATA5577M1330C-PPMY belongs to Microchip's legacy Atmel RFID transponder product line, designed specifically for secure, battery-free, low-frequency identification in harsh or regulated environments where reliability, field programmability, and anti-cloning features are critical.
FAQ
What is the default modulation and data rate configured in ATA5577M1330C-PPMY at delivery?
The ATA5577M1330C-PPMY ships with its configuration register (block 0, page 0) preprogrammed to 0x00088040, enabling Manchester modulation at RF/32 data rate. This setting ensures immediate interoperability with widely deployed 125 kHz readers without requiring initial setup-reducing integration time for the ATA5577M1330C-PPMY in access control and asset tagging applications.
Does ATA5577M1330C-PPMY require an external power source or battery?
No, the ATA5577M1330C-PPMY operates entirely from contactless power harvested via its integrated ferrite-core coil antenna. When exposed to a 125 kHz RF field exceeding 14.5 A/m, the on-chip LC resonator generates sufficient voltage to power the EEPROM and logic circuits-making the ATA5577M1330C-PPMY fully passive and maintenance-free throughout its operational lifetime.
How is memory protection implemented in ATA5577M1330C-PPMY?
ATA5577M1330C-PPMY implements per-block write protection using a dedicated lock bit in each of its 11 EEPROM blocks (32 data + 1 lock bit). Once set, a lock bit permanently disables further writes to that block. Additionally, a 32-bit password stored in a dedicated EEPROM block must be presented before any write command is executed-providing two-layer protection for sensitive data in the ATA5577M1330C-PPMY.
Can ATA5577M1330C-PPMY be reprogrammed after initial deployment?
Yes, the ATA5577M1330C-PPMY supports full field reprogramming of all unlocked EEPROM blocks-including user memory, configuration, and AFE registers-as long as the correct 32-bit password is supplied and the RF field strength exceeds 29 A/m. Blocks 1 and 2 in page 0 ship unlocked and zero-initialized, allowing immediate customization of the ATA5577M1330C-PPMY for end-customer-specific data payloads.
What mechanical package does ATA5577M1330C-PPMY use, and what are its dimensions?
The ATA5577M1330C-PPMY uses a molded plastic brick package measuring 11.9 ± 0.2 mm × 4.9 ± 0.1 mm × 4.2 ± 0.1 mm, with chamfered edges (1 ± 0.2 mm × 45°) and angled side walls (7° ± 0.2°). Its integrated ferrite-core coil is fully encapsulated-no external connections or mounting holes are provided, making the ATA5577M1330C-PPMY ready for direct embedding or adhesive mounting.
ATA5577M1330C-PPMY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Packaging:
- Tray
- Product Status:
- Active
- Style:
- Encapsulated
- Technology:
- Passive
- Frequency:
- 125kHz
- Memory Type:
- Read/Write
- Writable Memory:
- 363b (User)
- Standards:
- ISO 11784, ISO 11785
- Operating Temperature:
- -40°C ~ 85°C
- Size / Dimension:
- 0.469" L x 0.224" W (11.90mm x 5.70mm)
ATA5577M1330C-PPMY FAQ
1.How can I place an order for ATA5577M1330C-PPMY through Aetrix?
Please submit a Request for Quotation (RFQ) for ATA5577M1330C-PPMY 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 ATA5577M1330C-PPMY reliable?
The price and inventory of ATA5577M1330C-PPMY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ATA5577M1330C-PPMY is usually 5 days.
3.What payment methods are accepted for ATA5577M1330C-PPMY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ATA5577M1330C-PPMY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ATA5577M1330C-PPMY?
ATA5577M1330C-PPMY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ATA5577M1330C-PPMY 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 ATA5577M1330C-PPMY?
For technical support, including ATA5577M1330C-PPMY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ATA5577M1330C-PPMY requirements.
6.How does Aetrix verify that ATA5577M1330C-PPMY is sourced from the original manufacturer or authorized distributors?
All ATA5577M1330C-PPMY 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 ATA5577M1330C-PPMY meets industry standards.
7.What is the process for return or replacement of ATA5577M1330C-PPMY?
All ATA5577M1330C-PPMY units undergo pre-shipment inspection (PSI). If there is an issue with ATA5577M1330C-PPMY, 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 ATA5577M1330C-PPMY part is unused and in its original packaging.
Return procedure for ATA5577M1330C-PPMY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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